SP-835-93
7
OFFICE OF THE COUNTY ENGINEER
SPOKANE COUNTY, WASHINGTON
TO: Jeff Forrey, Department of Buildings
FROM: Bill Hemmings
DATE: November 29, 1993
SUBJECT: B.C.C. resolution # 91-0882 Implementation
Attached are the individual lot plans for each lot containing a swale in SHORT PLAT SP-835-93,
plat# SP-835. Please give the appropriate lot plan to the individual applying for a building permit on
the lot, so they can draw their house and approach to scale on the lot. We will need this plan, and
tbe corresponding $1000.00 cash surety, in the form of cash, letter of credit, or savings assignment,
before we can issue tbe approach permit. Also attached are the letter of credit and savings
assignment forms.
If you desire, we can meet to further discuss this new process.
kU~assign.208
l I
• "SAMPLE LETTER OF CREDIT"
" (USE BANK LETTERHEAD) " (BANK NAME
ADDRESS ZIP CODE
PHONE # AND OTHER INFORMATION)
IRRE`10CABLE LETTER OF CREDIT
AMOUNT: $ 1,000.00 NO.
BENEFICIARY:
SPOKANE COUNTY ENGINEERS
1026 W BROADWAY
SPOKANE, WA 99260-0170
SUBJECT: LOT BLOCK SHORT PLAT SP-$35-93 (Plat)
PLAT # SP-835. (Dcvelopment) Gentlemen:
We hereby authorize our irrevocable Letter of Credit in your favor, and authorize you to draw on the
(bank),
a draft up to one thousand (Dollars) ($1,000.00), for the account or
(developer).
The draft, drawn under this Letter of Credit, covers the assurance of completion of installation of storm drainage,
drainage swales, sod and other work as is incidental and related thereto in accordance with the drawings and
specificatioas as submitted to and approved by 1he Spokane County Engineer's Office on (date),
and is to be accompanied by the following documents: written request by Spokane Couuty Eogineer's Office to
,(bank),
at the above address indicating non-completion of all or any of the above iaiprovements and that amount of money
required to complete such improvements.
We hereby agree with the drawer, endorser and bona fide holder of tbis draft, negotiated under and in compliance
witb the terms of this credit, that said draft shall bc duly honored upon presentatio❑ at the .
(bank),
at any time before completion of the above-described improvemEnts or performance, in which evEnt written notice shall
be given by Spokane County to the bank.
(developer)
shall be responsible for any cost incurred by the county in excess of the amount of security.
Drafts, drawn under this Letter of Credit, shall bEar ou their face the words
Drawn under (bank)
(bank address)
Credit No. I7ated
Bank Nanie:
F3y:
(authorized signor)
ky\f\assign.208
. ' ' "AGREEMENT"
In consideration of the issuance of a building permit for Lot , Block ,
SHORT PLAT SP-835-93 (plat) plat # SP-835
(Developer)
has deposited $1,000.00 with Spokane County as security for full and faithful performance by
Developer respecting certain drainage facilities and sod in :accordance witli tlle drawings and
speci.fications as submitted to and approved by the Spokane County Engineers Office on (date)
199 .
Developer hereby agrees that should such drainage facilities and sod not be constructed in
accordance witb the approved drawings within six months of occupancy, Spokane County may tben
use the security to bring these facilities and sod into conformance tberewith. Developer shall be
responsible for any costs incurred by tbe county an excess of the amount of security.
Spokane County agrees to return to Developer any unused funds upon satisfactory completion of
these facilities and sod.
NAME & ADDRESS TO BE RETURNED TO: (Developer Signature)
DATE
kU~assign.208
,
, ~ • A S S I G N M E NT
For security purposes only, (developer)
hereby assigns to SPOKANE COUNTY, a political subdivision of the State of Washington, the following:
Savings Certificate Number
in the face amount of $1.000.00
and held in and by
Bank of
Branch
(bank address)
This assignment is made as security for the full and faitliful performance by
(developer)
of certain drainage facilities and sod for LOT BLOCK , SHORT PLAT SP-$35-93 (Plat) Plat # SP-835 in
accordance with the drawings: and specificatiolls as subnutted to and approved by the Spokane County Engineers office on
(date) , 199 .
Any interest benefits accruing under said savings certificate shall remain the property of
(developer)
Said savings certificate to be released to
(developer)
any other party only with the prior written consent and agreement of Spokane County.
PROVIDED, FURTHER, the undersigned does hErcby authorize
, (bank)
to pay over to Spokane County all or a sufficient portion of the monies in the savings certificate referenced hereinabove
upon writteu documentation being received from the Spokane County Engineer indicating that the purposes for which the
savings certificate was assigned have not been Fully and faithfully performed as required and a statement of that amount of
money which the County Engineer as required and a statement of that amount of money wtiich the County Engineer deems
necessary to complete such obligatiou. Upon receipt of such written documentation,
. (developer)
hereby authorizes (bank)
to release to Spokane County tbat amount of money requested up to the maximum amount in the savuigs certificate.
, (developer)
sball be responsible for any costs incurred by the county excess of the amount of security.
DATED this day of , 199 .
BANK OF
President
Secretary
DATED this day of , 199 .
DEVELOPER
STATE 4F WASHINGTON )
:ss
County of Spokane
On this day personaUy appeared before nie ,
to me known to be the individual described in and who executed the within and foregoing instrument, and acknowledged that
signed the same as free and voluntary act and deed, for the uses and purposes thercin nlentioned.
GIVEN UNDER MY HAND AND OFFICIAL SEAL this day of , 199 .
Notary Public in and for the State
of Washington, residing at Spokane
kU~assign.208
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TYPE ' Er
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IE= 89.25 I I
\ OUTIET 0+45, 38.5' RT pONO E
IE= 89.1 BOT. EL= 1989.10
)6,-91.50 ~ pr
EDGE OF PAVEMENT
1 ~
FOURTH AVE.
" ~
7RACT 1 SHORT PLAT N&. '1835"`3
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HAHN ENGINEERING N. 8623 SUITE B DIVISION SPOKANE, WA. 99208 ~
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vFFICiAL PU43LtC DOCUMENT
SLOKANE COUNTY ENGiNEER'S OFFFCE
0R 4G$A.
FR DJECT
S1018MET7Ai. tt
RETURN TO COUNTY ENGINEER
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cD 0 ~ /ORYW,E4 y A NI 10~ UTILITY EASEMENT
5~ FUTURE ACQUISTION
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~ FOURTH AV E. ~
TRACT I SHOR-T PLA7 NO 835-93 . ,
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NOTIFY Ti-ii l::e3;NFER
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SPOKANE ~OUN" ENG1N -
OFk-G NA~"'
P 835
pROJECT #
SugMITT Al # ~
q~}1~~`~ ENG~NE~R
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1 inch = 20ft
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~ 91.17 ( ' ~ ` ~ ' - ' -~-r`°~~-~ : - • ~
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\ iN 89.25 3.75, 15' RT 220 sr - zo9' T ' 81.55' ~ W z
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~ IE= 89.1 807. EL=1989.10 ~ s W 9?
EDGE OF PAVCAAENT
~
FOURTH AVE.
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TRACT 1 S H 0 RT P LAT N 0.Y56-4 3 ~
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HAHN ENGINEERING N. 8623 SUITE 8 DIVISION SPOKANE, WA. 99208 ~
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Q/s~~ OFFtCtAI PU6t,tC OOCUMENT
S'oNALOoPOKANE QOtJN1Y "INEER'S OFFICE
EXPIAES; ~ ORGNA..
P-ROJEcz # 5_P S3sX
sJ aPJi ITI KL a
t;ETURN TO COUNTY ENGlNEER
RECEIVED
auG 2 4 1994
°REPAREP BY : HAUN `NG I NEER ING, I NC , SPOKANE COUNTY ENGINEER
N. 8623 B DIVISIQR'
SPDKANE, . WA 99~08
(509) 467-1550
. t6 •
DRAIN EASEMENT -a SKIPWORTH ROAD AND 4th AVE.
. A portion of land for darainage easement purposes described as
follows:
The south 45.5 feet of the west 26.5 feet of Tract 1, Short Plat
N0. 835-93, Dated May , 1993, located in the N.W. 1/4, Section 21,
Township 25 north, Range 44 East, Willamette Meridian, Spokane
County, Washington.
PROJECT: DESIGNER; AC A4-1
~
DATE: ~ L~~ ,
HYDROLOGIC AND CHANNEL INFORMATION SKETCH
STATI ON *
EL.
~
AHW= ~
q, TW, -4 TW
S - T
q2 _ TW2 ~ EL. 82,Y~ L = .r .
EL. B9.lo
0 DESIGN DISCNARGE , SAY o25 1 MEAN STREAM VELOCITY =?b
V1 ( Q2 c CHECK DISCMARGE , SAY 0 50 OR 0l00 I MAX. STREAM VELOCITY=
co
CULVERT HEADWATER . COMPUTATION J FF
OESCR IPTION q SizE INLET CONT. ~ OUTLET CONTROL HW=H + ho -LSo ~ Z~ o cos7 COMMENTS
F. ] J
(ENTRANGE TYPE) O HW Ke H (Ic dc2 D TW I10 LSD NW ~ O>
`l 7 b 115 I.0(a ~ °LP
~
-n
m
~
~
~ SUMMARY a RECOMMENDATIONS:
~ o
J~(.i?I11, ( ' I ,-i,~, y (r 1'J (1. r(~r' l... ~ ^ ` C(~/!T
o 1
, ~ = I 'I 1- f ~ - ~ , ` f" ' - • • ~ 1 1 -7 j . ` 7L . ` / C ~
~
• 7)
Id ~ 'I ! ! ~ ~1,.~~~.. li~,' ~Lr. r~z: rf ~~►''n►,'~
7 F:.C1Qf-4. T0 rUr,'
Appendix B - TABL:'_z-
Table I. - Entrance Loss Coerficients
0
Ccefl'~cient ke to app1y to velocity head ~ ior determination o' ^ea.d
loss r-_i entrance to a structure, such as a csalvert or conduit, o~~ -tC,- '
;r-g ;ul or partly fan with control at trc outlet.
Entx-znce head loss H.e - k V2
e 2g
`:-~-Le o_' Struczure and Design of Entrance Ccz:__c_ent
:>_lce. Concret-e
= =OjeC t1P.g lrOs= _ 2?1., socket end (gr-J•3-.-1,r~_end) . . . . . „ ;
??-o jecting from ; ill, sq. cut end . . . . . . . . . . , r. j
.Headuall or heaswrl.l and wingWZlls
Socko-t enn cf pine (groove-end) . . . . . . . . . . r ~
Souare-ed,ge . . . . . . . . . . . . . . . . . . . . r -
Roun
c'ted (:=aius - ?~12D) . . . . . . . . . . . . . .
;,ered to confaro -to f-*L? 1 slope . . . . . . . . . . . . ~
*--,d-Section Con'arm-irg to fill sloua , , , , , , , , , ,
-
or Pipe-Arch, Corrugated Metal
o,ie czir.g fre:- _ -i11 (no headwa?.? ) . . . , . . - • ~
HL zduall. or h? ad~ i i an-1 W i ngw? ~ ~ ~ . . . . . _ _ . . - - - - ~ .
• SOt12I'e-.=7,r° . . . . . . . . . . . . . . . . . . . .
- i
tered io con= c~ ~o -f? ll slope . . . . . . . . . . . . _ . ; *Snd-Sectlon co::= o:ing io fill s? one . . . . . . . . . .
,
'einforcea Concrete
::eadWalt parallel io embanitment (no R_ng-aalZsj
Squ.are - ed.ze d on j edge s . . . . . . . . . . . . . . . j
Ro~::idea oL 3 edges to a adius o' 1/12 barr-1
dime ns ? on . . . . . . . . . . . . . . . . . . . . , %
n'ingwalls at 30c' ;.0 75c to bzrre?
S4u_-re-•::^,.v.;.ci a_t crOUn . . . . . . . . . . . . . . . ~ .
Crowr Uunded to radius o' 1 ~12 t'i2r_ =-1
diar.ensaon . . . . . . . . . . . . . . . . . . . . v
~ri; ngualls a-t ? GC to 25`' to barrel
Souare-ed,.ged at croun . . . . . . . . . . . . . , . ; . ~
Wingwalls para? lel (extension o, siees ) ~
Square-edged at croWn . . . . . . . . . . . . . . . ^ .7
V
"Ead Section conforming to fi11 S'_orE.'"; raQe Of e? Z'i12T ..Ve;al p?'
concreie, are the sections coTmor-.1y available L'ron rantj'=: -.-j_-ers . -
From limited hydraulic tests the; Gre equivGlent ? n o7Ce~ -o
a headwall _n ooth i-nlet and outle-: control. Some end
incornorati-rg a closed taper in iCr:eir design have z su,F--~~- hy_
drauli-c per'orrrance. These latter sections ezn be des:an=d us? ng
the i-nforn,aii-on given for the bevelled inlet, b. 5-13.
C HA RT 2
- 180 10.000,,
- 168 8,000 EXAMPL~ ( ~ ) (2) (3)
- 156 6~O D=42 incAes 13.5 tte>> r 6.
- ' 0~ 120 c4s 6.
- 144 5,000 5.
' 4,090 Hw' Hw 6. - 5.
- 132 p fe:;
: - 3,000 5 4.
- 120 q .
(2) 2.1 74
' 2,000
4.
08 (3) 2.2 7.7
3.
• 'p in tee• 3. .
~ 96 1,000
3.
800
- &4
600 k 2. 2
' S00
- 72 400 2•.
W 300
v - N 1.5 1.5
Z cn ~ -
z 60 v 200 / w 1.5
. ~
_ Z . W -
o - 54 Q
p - -
~ , 48 / w 100 ~
> / Cr ao ?
~U / 2 0 60 w - I .4 1.0
. ~ 50 H W SGALE E,tiT=APr'GZ ~ - 1.0 ~ -
a: 40 D i Y?E w
}.W.. - 36 l- -,g -.9
W 30 s~u:•e e:;e 0-:11, c'i
Q- 33 r,ec:.:'~ ~ .9 _ r
20 (2) Grx,e e:_ .;:a a I-
o w -.8
30 .8
(3) Grc:.e :zt - •8 .
- 27 I;s '
10 r
-,7 r-.7.
-24 8 : ~-.7
6 Tu us: s:ole (2) or :•::et: . -
_ 21 5 horizontally to secle
4 use streiqht inclinte i-t
3 D ond 0 scotes, or re,_-se as L_6 ~.b
iilustrCteQ. I
'18 .
2
- 15
1.0 - .5
12 HEADWATER DEPTH F4R
CONCRETE PIPE CULVERTS
BUREAU Of PU3UC ROAOS JAN.1963 WITH INLET CONTROL
-5-22
.
CHART 16
. .
3 . ,
I ' r ~ ~
• ~ 'G3.5' I I ~ 1 ! i
' 2_9. 3.0' ~ dC CQNNOT EXGEED fOP OF PlPE ~
I
2.0
f~-1.5'
. .~I.O'OIA.
01 10 20 30 40 50 60 70 80 90 100
DISCHARGL- ;-GFS
6 s
1
/ i~~/~.~L ~ • ,
G I + i 7
J ~
ui
9 > 1 ' w LLJ
,
~U 4 ~ 7 6 LL
_ AW/ ; d I { d~ ~AINNOT ExCEED TOP 0F Pi?c =
u 3 ~ 5
~7~ a
G
V Z 144-4' DI A. Q
0 100 200 300 400 50= 600 700 800 900 1000 ~
~ OISGHARG=•~-GFS -
~
U c~
-i4
.
~
,
~2 ~ ~ ~ ~ ' ' ' ' i ~ • ~ ,
i I ' . - t ! •
t ;
10
8 . , ~ _ .
6 ; ec cc:hINoz ExcEEO TaP cF PIPE ,
3'
9' o~a
40 1000 20:= 3000 4000
oIscHARC= - o - cFs
BUREAU OF PUBLIC ROADS
JAN. 1464 ~ G R I T! CAL D E P TH
5_30CIRCULAR PIPE
n
BACKWATER PROGRAM FOR ROUND/ARCH CULVERTS
ENTER: NUMBER OF CULVERTS„
1
OUTFLOW CONDITIONS PIPE N0. 1- TAILWATER DATA:
1) SPECIFY TYPE 0F TAILWATER DATA INPUT: S- SINGLE TW-ELEV.
F - TW/HW DATA FILE
s
2) ENTER : TW - ELEV
89.77
ROUND/ARCH PIPE INDUT CODING INFORMATION:
PIPE TYPE CODING:
1- CONCISMOOTH BORE (n=0.012) 5- CMP ARCH (NEW GEOMETRY)
2- CORRLGATED METAL (n=0.024) 6- CONC/SMOOTH ARCH (OLD)
3- HELICaL CMP (n-fac varies) 7- CONC/SMOOTH ARCH (NEW)
4- CMP rRCH {OLD GEONIETRY) 8- ROUND (user sets n-fac)
ARCH PIPE COD±NG -EQUIVALENT ROUND SIZE NiUST BF TVPUTTED PER FOLLOWING TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCN
15" lC., 11" 17":~ 13" * ~2" 50"X 31" 49"X 33"
18" 2211:i 1311 2i "X 1311 * d~" 58"X 36" 57"X 38"
21" 25 "16" 2?"~~ 18" 65"X 40" 64"X 43"
24" 2°i-•'_ 18" 28"X 20" * 60" 72"X 44" 71"X 4711
30" 3611 22" 35" ~ 24" * 6oe " 79"X 49" 771IX 52"
36" 43"~r 27" 42"X 29" * 72" 85"X 54" 83"X 5711
INLET TYPE CODING: 1- CMP/PROJ. 4- CP SOCKET/PROJ. 7- C~~.kP/PROJ. 10 - OTHER (SEE
2- CMP/HDW.L?LL 5- CP SQ.EDGE/HDWALL 8- CzfkP/HDWALL FHWA REPORT
3- CMP/MITER 6- CP SOCKET/HDWALL 9- C,rN?P/MITER HDS N0.5)
ENTER PIPE g1: LENGTH (f t), DjA (in) , PIPE-TYPE, 0UTLET- IE, INLET- IE, INLET-TYPE
8q3QI?j8, 89 . 1, 89 .25, i
ENTER N-VALUE rOR PsPE NO. 1
.013
INFLOW CONDITIONS - OVERFLOW D?±TA AND UPSTREAM VELOCITY DATA:
1) ENTER: OVERFLO::-ELEV, OVERFLOW-TYPE (NONE=O, BROAD-WEIR=1, SHARP-WEIR=2)
90.5
90.5,0
INFLOW CONDITIONS - OVERFLOW DHTA AND UPSTREAM VFT-OCITY DATA:
1) ENTER: OVEP,FLOi;-Ej EV, OVERF'LOW-TYPE (NONE=O, 3ROAD-WEIR=1, SHARP-WEIR=2)
90.5,0
2) SPECIFY TY?E OF VELOCITY DATA INPUT: S- SINCLE VELOCITY UPSTREAM
V- VA-R`j VELOCITY ACCORDING TO V=Q/A
S
3) ENTE VELOCITY ( fps ) UPSTREAM
0
ENTER: Q:•:IN, QMA.X, QINCRE, PRINT-OPTION ( STANDARD=1, CONDENSED=2, EXPANDED=3 )
1. 05, 1. 15,. 01, 1
PIPE N0. 30 LF - 12"PIPE @ .500s OUTLET: 89.10 INLET: 89.25 sNTYP: 1
Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI
~F~C*~C~C :~7FXTT'k7~*7~I'*~"k7~7~'~C~'** *****~C7~7Y7~~jC'7~~C~C~C~'~**7~ A~C lA'k A**'**~' A X A***'A' ~'~"A' A'~'* A'***7ti******
1.05 .72 89.97 * .013 .44 .46 .67 .67 .55 .72 .64
1.06 .72 89.97 * .013 .44 .46 .67 .67 .55 .72 .65
1.07 .72 89.97 * .013 .44 .46 .67 .67 .55 .72 .65
1.08 .73 89.98 * .013 .44 .46 .67 .67 .55 .73 .66
1.09 .73 89.98 * .013 .44 .46 .67 .67 .55 .73 .66
1.10 .73 89.98 * .013 .45 .47 .67 .67 .55 .73 .66
1.11 .74 89.99 * .013 .45 .47 .67 .67 .55 .74- .67
1.12 .74 89.99 * .013 .45 .47 .67 .67 .55 .7a .67
1.13 .74 89.99 * .013 .45 .47 .67 .67 .56 .74 .68
1.14__ .75 90.00 * .013 .45 .48 .67 .67 .56 .75 .68
1.15 .75 90.00 * .013 .46 .48 .67 .67 .55 .75 .68
SPECIFY . :,i - NEWJOB, F - FILE, S - STOP ~ =/y~fi' ~ i~~, t=r"~;• ~
,
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c=. G J = r % ~ i ~ a=- ,
KING COUNTY DEPARTMENT OF PUBLIC WORKS
Surface Water Management Division
BACKWATER ANALYSIS PROGR.AM ,
Version 4.20 '
1- INFO ON THIS PROGRAM
2 - awcxAN 3 - BWPIPE
4 - BWCULV
5 - BWBOX
6 - DATA-FILE ROUTINES
7 - RETURN TO DOS
ENTER 0?-__-0N
. 7 .
Stop - P=ogram terminated.
Returning to Point & Shoot...
C . \ P S > ~~T;
C : \PS>ec: o of f
. .
Returning to Point & Shoot...
C: \PS>vp
C:\PS>echo off
a.
accessing Flowmaster
Circular Channel Analysis & Design
Solved with Manning's Equation
~ Op2n Channel - Uniform flow ,
Workshezt Name:
Comment:
Solve For Accuai Depth
Given Input Data:
Diamet2r . . . . . . . . . . 1.00 f t
S101D= 0.0050 ft/ft
Manr__na' s n . . . . . . . 0 . 013
Discnarge......... 1.10 cfs
Computed Resu} ts :
Dept-h . . . . . . . . . . . . . 0.46 ft
Ve_o ci ty.......... 3.10 fps
Flo-.:: !Area......... 0.35 sf
Cr_:_cal D-aptr.... 0.44 ft
Crir-=cal Slope.... 0.0059 ft/ft
Percent Ful}...... 46.22 %
Fui l Capacicy..... 2.52 cfs
'i. 9 " D . . . . . . . . 2.71 c f s .
Froude Number..... 0.92 (flow is Subcrit-ical)
~
Open Channn-l Flo=fa Module, Version 3.21 (c) 1990
Haestad Nier-hods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708
` GH-IRM- 2 jlj/8s
US Department of Agriculture
Soil Conservation Service
" DESIGN WORKSHEET
for
Trapezoidal Channel Section
prepared for
g3ARD S NG in
SPOKANE COUNTY, WASHINGTON
Designer : RGH Checker
Date : 08/21/94 Date
BASIN A
Slope = 0.0160 ft/ft Hydr Radius = 0.20
'n' value = 0.030 Area = 0.51 sq.ft.
Capacity = 1.10 cfs
Velocity = 2.2 fps
Sideslope = 2.8 :1
Bottom width = 0.0 ft.
Depth = 0.4 f t.
BOWSTR Il`1G I`,,iE THOD (7EN YEAR STOR (ti1 GES IG1•a ) F'ROJE CT: 21KJFV,lORTH
DETENTI ON E?ASIi N DES 1CN BASI N: A
REVlE1+VER : R GH
NUh,16 ER OF DFWE LLS P ROFOSE G DATE : .22- r.ug--94
4 Si ngip (type A) 1 DIDubla (type B )
Tctil Area (calc.) (see H 1) 1.41
Ti me crf i;anc. (caic.) (see H1) 9. ~
Ti me af Conc. (mi n) . : 9.
A roa (A,c m s) 1.41
C' Fa c-to r ~0
Ini per,rious Area (scl. it.) r., ~27 0
\t'Dlu nie P rcmirlat{ V-:9. 5
0 U#flcn.-Y (1-1 F-,') 1
A rEe * C., Fac.~tar 0.47
1 #2 #4 #5 #6
T: ntp Ti mG I ~ ~io- FISit~' 'sn rl tr., r_:, a `~G
Inc. lnc.
(r,) in.;F (Sec. ) r. (cf i cu. ft. l (Cu. T:.; (Lu. )
~ YT V (C) U~. ~J~ 61
•1
(#1 -OJ) ~
: 1~ 5 rl'J. C9 1.10 89-6 r-.* 2E?5
~ 30n. 1.3 1.43 5 12~ q cI' 294
10 6 Cri 2. 2-4 1. C4 .924 -6-t-Jr: 224
15 G 1..~.~ ~ . ~ 1•• ~I1• C~ ~a ~j - - ~J
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120 0 1. -il -5 0. 6.7 Ka
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r'5 2 `ii"j 0 C►. Q1 0. 9 C, 9, - 1137
40 2400 1'. ~P_j 9'r- . 2410~ ~ -1412
45 2700 0.74 ~ - ~ ~ ~
50
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65 J;N 0 0. Cli 0. 2,31 1141 31,' J C, - 227 5 J
70 4200 0.518, 0. 27 11$4
75 49'JO 0. .,"i 0. y, 122 1 ~ U - 32/9
G~7 4000 G. tK 0.25 1220 'Sej ;f - ~_6 .r~'1
es 5100 0. 52 0.24 1 Z79 ~ 1 r.;0 ~8271
gr, ,Fanri ri U. ~i r► U. 23 1,T., r~ ~41) P. - 41 rri
95 5700 0.49 0.23 1342 15, 7 0 FJ -43 583
1 lJkl. ~i00 0 0. 48 0. 22, 1 r-22 6 f..f1rJ - 461$
DRAir,JAGE pQNC t;ALCU LKTIONS'
RaclU It-gcI 9(:tc.'tir :'',,)nIa liGfi CI !stora cIe tiUl u me
= In?pet'vIoLs Arera ~:.5 in.I 12 in.ft = 133 ru. ft.
G ras5•~ swak, ponrl w►Iun-ie pruvid9cl = 7=a. 5 cu. ft.
CIR"ANELL F EG}U1 F;E MENT S -14`Y'EAP DES IGMI STOR M
NhAniu rrt slor-age reclui cetl bf Bovntrin g _ 294 cli . ft.
NLI f11baf a t1f I~l:j? ot D npjrd1-j Recluirecl = C) Si ntjJa
~
1 Doublp
T 1ME QF CONC LINT PkTI QN (ni'lr► u ttgs 1
Tc ( av-eriancl ) Tc (guttPri .14. M-e S
u„
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:1 = 3 0.07 0.91
1 ~J ~ = F i~. ciJ 1~.1,ID
L7 t,~. 0 L^~.~ C~.'~
Nai;r~,) _ 6 =
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.S: = 0.016 0.00 0.00
Tc (A) = 6.41 cl = 0.43 0. ~l-i Cl. rfl
Tutft) A Cor~~~~ "C."
Ll (B) = 0 To (ou ) = =.94 1.41 0.33
N(B) = G Tr(A+ E) _ 6.41
S(B) - 0 0 =0*1*A= 1. 10
,
T(tot.a 1~,eF,t .10
Tc (E ) - 0.0 I rrbinnaity- _ ~.'-z
Tr (~~i tF1 T~ (ch)p da f1 rl) + Tc (r_;utt P- r)
T c ~ au-e d ft ncl ~ = C`t L1 *t~l~',~~ -j) ~ v. r~)
0t = 0.1 -q
Ll = Lonoh of Cvedand FIc+o
N = f rirAon facb rof overiancl flm,Y (.4 fr_o ra~,Q iage g rass ca,,pr)
S= R!verage slal_p of cue dan cl flcnnr
T~.; (gutter) Lr- n~~th (ft. ~`Velu:;~ k'EO
E= 6attom >hi r.KhaT outt,p- r or clib;h .
Z.l = i rn,'e t??? crf rrosc s1npG nne r_r# !'iifir'
Z2 = I Ru'e fr--e Cd cross slol.-ie fiiro cd clitch ~
cl = clerth Uf flow i n guttEr (*sti nia#e, rhr_l~ ~ti n7ate wi'th Fl;nrr)
A Taa = c( 13 -I-t f ^ Z2 jL1 -F- ~ )
VVetter) IDpnmetpr = B'r-I+ f 1~,,in {atn(11,Z-1 llsin (atn(1jZ4))
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SP 835
, .
HARD I NG PROPERTY
DRA I NAGE REPORT
OCT 11 , 1993
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HAM IINGINEIItING
N. 8623 "B" DIVISION ST.
SPOKANE, WASHINGTON 99208
467-1550
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BOWSTRING METHOD (TEN'YEAR STORM DESIGN,)- PROJEC7= SP 835-93
DETENTION BASIN DESIGN BASIN= A"
REVIEWER= PREBLE
NUMBER OF DRYWELLS PROPOSED DATE= 10-Oct-93
0 Si ngle (typ 1 Double (type B)
220 Pond floor area
Total Area ( calc (see H1 ) 1.41 •
Time of Conc.( calc.) (see H1 ) 36.27
Composite "C" ( calc _ ) (see H1 ) 0.28.
Time of Conc.( min ) 36.27
Ar ea ( Acr es ) 1. 41
C' Factor 0.28
Impervious Area (sq. ft.) 3200
Volume Provided ( cu . ft.) 208 = 135.1 storm (tot 325
r surf ace = 325
U/g= 0
Outf low ( cfis ) 0.0018332 0 1
Area * C" Factor 0.40
#1 #2 #3 #4 #5 #6 #7
Time 7ime Yntensity Q dev. v in V out Storage
I nc . I nc . .
(min. ) (sec. ) (in./hr. ) (cfs) (cu. fit. ) (cu. ft. ) (cu. ft. )
( #1*60 ) ( A*C*#3 ) ( Outf .*#2 ) ( #5-#6 )
36.27 2176.47 0.89 0.35 1030 2180.46 -1151
5 300 3.18 1.27 509 300.55 208
10 600 2.24 0.89 717 582.78 134
15 900 1.77 0.70 850 716.13 133
20 1200 1.45 0.58 928 795.08 133
' 25 1500 1.21 0.48 968 835.63 132
30 1800 1.04 0.41 998 866.57 132
35 2100 0.91 0.36 1019 887.92 131
40 2400 0.82 0.33 1025 894.07 131
45 2700 0.74 0.29 1013 883 . 00 130
50 3000 0_68 0.27 1012 882.59 130
55 3300 0.64 0; . 25 1029 900 . 02 129
60 3600 0_61 0.24 1054 925.16 129
65 • 3900 0.60 0.24 1108 980.08 128
70 4200 0_58 0.23 1140 1012.95 127
75 4500 0.56 0.22 1168 1041.04 127
80 4800 0.53 0.21 1169 1042.31 126
85 5100 0.52 0.21 1209 1082.90 126
90 5400 0.50 0.20 1222 1096.66 . 125
95 5700 0.49 0.20 1256 1131.28 125
100 6000 0.48 0.19 1288 1163.51 124
DRAINAGE POND CALCULATIONS
Required grassy swale pond storage volume
= Impervious Area x.5 in./ 12 in./ft 133 cu. ft.
provided: 135.1 cu. fit.
DRYWELL REQUIREMENTS - 10 YEAR DESIGN STORM
Maximum storage required by Bowstring = 208 cu. ft_
A - 3
TIME OF CONCENTRATION (minutes)
Tc ( overland ) JTc ( swale ) Areas "C"
Ct = 0.15 L2 = 380 1.34 0.30
Z1 = 33 .0.07 0.90
L 1( A) = 160 . Z2 = 33 0.00 0.00
N(A) = 0.4 B = 0 0.00 0.00
S(A) 0.015 . n - 0.3 r 0.00 0.00
s = 0_016 " 0.00 0.00
Tc (.A ) = 6.41 . d = 0.5 0.00 0.00
Total A Comp "C"
L 1( B) = 0 Tc ( gu 25.49 1.41 0.33
N(B) = 0 -
s(B) = 0 Tc( A+B 6.41
Q=C*T*A= 0_46
Tc (B) = 0.0 •
Tc( tot 31.-90 Q( est = 2.05
- Intensity 0.99 . A = 8.25
WP = 33.0151
R = 0.2499
V = 0.25
Tc ( total ) = Tc ( overland ) + Tc ( gutter ) Tc( gu ) = 25.49
7c ( over 1 and Ct*( L 1*N/S~0 . 5)~0 . 6) Q( est 2.05
Ct = 0.15
L1 = Length of Overland Flow Holding = 13_54
N= -Friction factor of overland flow (.4 for average grass cover )
5= average slope of overland f.low
Tc ( gutter ) = Length ( ft . )/Velocity ( ft ./sec . )/60
B= Bottom width of gutter or ditch
Z1 = inverse of cross slope one of ditch
Z2 = inverse of cross slope two of ditch
d= depth of flow in gutter (estimate, check estimate wzth Flow)
Area = d*B+d-2/2*(Z1+Z2)
Wetted perimeter = B*d+( 1/sin( atn( 1/Z1 ))+1/sin( atn( 1/Z2
Hydraulic Radius = R= Area/Wetted Per.i.meter
Velocity = 1.486/n*R"'.667*s~.5
Flow = Velocity*Area
n = 0.016 for asphalt
s= longitudinal slope of gutter
Floor outflow = (.36"depth/hr. per sq.ft. floor 1 ft depth/12" 1
. = 0.00000833 cf s per sq. f t. of f 1 oor ar ea
,
A
BOWSTRING METHOD (TEN YEAR STORM DESIGN) PROJECT= SP 835-93
DETENTION BASIN DESYGN BASIN= B"
REVIEWER= JWP
NUMBER OF DRYWELLS PROPOSED - DATE: 05-Oct-93
1 Single (typ 0 Double (type B)
200 Pond floor area ' Total Area ( calc (see M1 ) 0.17
Time of -Conc _ ( calc . ) (see H1 ) 5.00
Composite "C" ( calc . ) (see H1 ) 0.55
Time of Conc.( min ) . 5.00
Area ( Acres ) 0.17
_
C ' Factor 0.55
Tmpervious Area ( sq . ft.) 3210
Volume Provided ( cu . f t.) 208 = 141.6 storm (tot 371
surface= 366.5
+ u/g 0
Outf 1 ow ( cf s) 0.0016666 0 0.3
Area * C" Factor 0.09
#1 #2 #3 #4 #5 #6 #7
Time " Time Intensity Q dev. V in V out 5torage
I nc . . I nc . . _
(min_ ) (sec_ ) ( in./hr. ) (cfs) (cu. ft. ) (cu. ft_ ) (cu. ft. )
( #1*60 ) ( A*C*#3 ) ( Outf .*#2 ) ( #5-#6 )
5.00 300.00 3.18 0.30 120 0.50 119
, 5 300 3.18 0.30 120 0.50 119
10 600 2.24 0.21 147 6.43 141
15 900 1.77 0.17 166 25,73 140
- 20 1200 1.45 0.14 177 36.92 140
25 1500 1.21 0.11 181 42 . 14 139
30 1800 1.04 0.10 185 46.35 139
35 -2100 0.91 0.09 187 49.26 138
40 2400 0_82 0.08 192 54.23 138
45 2700 0.74 0.07 194 56.77 137
50 3000 0.68 0.06 197 60.62 137'
55 3300 0.64 0.06 204 67.48 136
60 3600 • 0.61 0.06 211 75.54 136
65 3900 0.60 0.06 225 89.41 135
70 4200 0.58 0.05 233 98.70 135
75 4500 0.56 0.05 241 106.86 134
80 4800 0.53 0.05 243 109_32 134
85 5100 0.52 0.05 253 119.82 133
90 5400 0.50 0.05 257 124.62 133
95 5700 0.49 0.05 266 133.72 132
100 6000 0.48 0.04 274 142.26 132
DRAINAGE POND CALCULATIONS
Required grassy swale pond storage volume
= Impervious Area x.5 in./ 12 in./ft 134 cu. ft.
provided: 141.6 cu _ ft.
DRYWELL REQUXREMENTS - 10 YEAR DESIGN STORM
Maximum storage required by Bowstring = 141 cu. ft.
provided = 371 cu. ft.
TIME OF CONCENTRATION ( mi nutes ) ~
Tc ( overland ) Tc ( swale ) . Areas "C"
Ct = 0.15 L2 = 380 0.07 0.90
Z1 = 33 0.10 0.30
L1( A) = 0 - Z2 = 33 0.00 0.00
N(A) = 0.4 B = 0 0.00 0.00
S(A) = 0 n = - O_ 3 0.00 0.00
. s = 1.6 0.00 0.00
Tc (A) = 0.00 d = 0.5 0.00 0.00
Total A Comp "C"
L1(B) = 0 Tc (gu) = 2.55 0.17 0.55
" N(B) = 0 S(B) = 0 Tc( A+B 0.00 -
Q=C*I *A- 0.30
Tc (B) = 0.0 Tc( tOt 5.00 Q( est = 20 . 50
Intensity 3.18
A = 8.25
WP = 33.0151
R = 0.2499
V = 2.48
Tc ( total ) = Tc ( overland ) + Yc ( gutter ) Tc( gu ) = 2.55
7c ( overland ) = Ct*( L1*N/S-0 .5 )~0 .6 } o( est ) = 20.50
Ct = 0.15 '
L1- = Length of Over land Flow 1-io1dY ng = 13.54
N= friction factor of overlarid flow (.4 for average grass cover )
S= average slope of overland flow
Tc ( gutter ) = Length ( ft . )/Velocity ( ft ./sec . )/60
B= Bottom width of gutter or ditch
Z1 = inverse of cross slope one of ditch
Z2 = inverse of cross slope two of ditch
- d= depth of f low in gutter ( estimate , check estimate with 'Flow )
Area = d*B+d~2/2*( Z1+Z2 )
Wetted perimeter = 6*d+( 1/sin( at.n( 1/Z1 ))+1/sin( atn( 1/Z2
Hydraulic Radius = R= Area/Wetted Perimeter
Velocity = 1.486/n*R"'.667*s~.5
Flow = Velocity*Area
n = 0.016 for asphalt •
s= longitudinal slope of gutter Floor outf low = ( .36 "depth/hr . per sq. fit . f loor ) * (1 ft depth/12 " ) * (1
= 0.00000833 cf s per sq. f t. of f 1 oor ar ea
~
' OH-IRM- 2/15/88
US Department of Agricultur
Soil Conservation Service
. , DESIGN WORKSHEET
' for- ,
Trapezoidal Channel Section
- prepared for .
_ 1-1 0"~ FZ 0 X m ~ -
. ip . ' -
SPOKANE COUNTY, WASHINGTON _
Designer : JWP Checker Date = 10/12/93 Date
,
BASIN, "A" 9WAZE D\ZCP
S1 ope . = 0.0133 f t/ft Hydr Radius = 0.20
° `n' value : 0.030 Area = 0.55 sq.ft .
. Capacity = 1.10 cfs
Velocity = 2.0 fip5
Sideslope - 3.0 =1
Bottom width = 0.0 f t.
Depth - - 0.4 f t. i ~c ~ 7' j~ n~s ~ G• /y,'' . ~"1
' % 2~..,~ •'•;-rr;. :'.r. , ~ ~
7~ ~ ~ ~ • ! ~ ~ ~ D
p ~ / t
C1 y -
\
OH-IRM- 2/15/88
.
, US Department of Agricultur
- ~ Soil Conservation Service.
DESIGN WORKSHEET
for -
- , . - Trapezoidal Channel Section_ - prepared for - , - . - i--i A~ F=;: C> L
` in
SPOKANE COUNTY,,WASHINGTON - Designer : JWP Checker
Oate = 10/05/93 - Date
*~~*xc**~~**~**~c~*****~***~~~**~~~*~*x:~~*~*~~~**~~**~*~:*~*****~**~*~:~c~
g A 5 I N "B" c,W46:& ~ I-f G hj
Slope = 0.0160 ft/ft _ Hydr Radius = 0.12
` n' va 1 ue = 0.030 Ar ea - 0. 20 -sq . f t.
Capacity 0.31 cfs
Velocity - 1.6 fps
Sideslope = 3.0 a1
Bottom width = 0.0 ft.
Depth = 0.3 ft.
' f-(~L,•.' 7 o-i_ ` 'l J:~~ 1
+ p OJ J p, o~
. , . ;
I
~ ~,r . • ~ ! . ~r.~~a .Y ~
. / p_ I 7 ~
r • ~
F~p ,s~
~ _
i ~ ~ .
.Z~
- 8
OH-IRN- 2/15/88
~ , • . .
• US Depar tme nt of Agr i cu 1tur
- Soil Conservation Service
- - DESIGN WORKSNEET ' - ,
' ' . . y for _ Circular Section
prepared for > F-•1 0=~a FR C> Y`tiB E~ .
. ' : in . SPOKANE COUNTY, WASHINGTON Designer = JWP Checker -
Date = 10/12/93 . Date •
*~cVc~c*~c*~**x:%k~k*~c~c~ic=K~~~*~~c*=K**~:*~*~*~~c**~c**~c*~c**~Vc*:K*~K*~~c~lc***~K*******~~c*
CULVERT @ TURN AROUND
51ope = 0.0133 ft/ft Hydr Radius = 0.25.
°n' value = 0.024 Area = 0.39 sq.fit.
Capac i ty =1_ 11 cf s
Velocity - 2.8 fps
Diameter = 12 in. Depth of flow = 6.0 in.
1
~ _ 5,4.2-
~ L-JO
'
. ,
' OH-IRM- 2/15/88 '
, _ . US Department of Agricultur
Soil Conservation Service
DESIGN WORKSHEET. :
. . for -
Culve,rt Evaluation .
pr epar ed f or
0~•r' M.:.:u 1~•ll a:~a
in
SPOKANE COUNTY, WASHINGTON . . ' Designer = JWP Checker '
Date' = 10/12/93 Date , .
CULVERT @ TURN AF20UND
`n' value = 0.024 . Capacity = 2.8 cfs.
Length = 50 f t . Diameter = 12 in. Inlet CONTROLS
Projecting groove edge - Elevation of headwater = 2:7
Elevation of inlet - 1.6 Elevation of tailwater ~ 1.5
- Elevation of outlet = 1.0 '
. . .
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I--.r ~ / I~ii Y%~''~--~' t~_ ~.'1~~ . ".1'., i..e ~ ..F~~ ~ ' • ~ ~ , ~~l~dr~u+~'.^ ~ . ~.r"~
~ , N ~ . ~ ~':1 t~ , ~ ~ .i ~ p•~~y~~~ ~ ~ i N~ ` y , 2 n x v a :~,r, ;:1 ~t~y~.a3~• . , ~ r "fi~ , d' -
GgA c'1,;, ,N, . ~ I p °},r}'M f` ~ ~~u,~ ; .y~\ ~ C~ , ~r'^;;•.'.,;~;~^''~ ~ C,~, . • ,k•.i~;'+~''.+__ ~ •
~ ...IG Qj't, .o v.t •sth, ~'~,'~,•6f}~ ✓ ~ ~9 :3 ~'l - .~___"'r:~.. ..w._ i .~.A...,.. m.. ,..:.::~.i.i,~..x;::;.•., ~ ..u, _ . (Joins sliect 76) ~ N~. ~ - O
0 , .
iS • sort, sLi3I-r•.1-
occupy rolliii~ to l~i)l~• iil~laiicls. '`]leiT fc~i•mrd i~i la.~~ei•ed t.liev at-e excellei►f ~~l:~ces for liu«iinn »ni`~-a•:~toi•~• i~-;lr~~rfo~~-l.
IOCsS 1111C1'L' CO111fC1'Olls foCCSt. ~.l,~~l(? ,Ulilll.~l l~t'CCI ~)If7lflOll lS (C,ll):lblllh~ 11111L' 111Il\'-1 ; 110t ltl :l N\"00(1j7l11Ct `'1'Ullp ol' o~
1111UUt23 IIlC~1C~; .U1Cl t~1C ~1'OS~-tl'~C ~l':~~Ull 1~ .~l~o~it 1~':~ Cl~l~~S. 1':111~'C SIfC)
Freem,ui -coils ai•c n;cd foi• crr.lin, pcas, clover, alf:ilfn; ~
;111C1 (Yr,ls;. 111C1 1s i.-oodl.lucl. ~ Garfield Series
rreeman silt loam, 5 to 20 percent slopes (Fa8).-This
i; TjIC Cltllll111ant on the silty up1il11Cl 1]C)l'tIl :nui east of- The Cx.irfielcl series cr,iisist:s oi «-ell-dr.iined. ;erei•elv
Iioel;ford. _lIo_t ~lol~~~~ .u•e bet~~-een 8.i?i~l 15 l~e~•een't; n erod~~~l s~~il: tli:~t fc~riiiect iii loe~` uncler ~Yr,i~~ ;in~l sumall
fcN\• zm;lll .1i•e.1s h,Zre zlopcs of iiiore tllan '00 pcrceiif, ~il1Cl slirul~~. '1'lie~e ~oils occt~p~- rid~~etolr. l:uol~s, ,>>lil tiie >>1,- .
. s~~nle of le,s tlian a l~ercent. SlopeS of moi•c tl~aui 20 pei•- per .lopc-z oii i•olliii(Y to hill}- upEallClc. Thec liave .1 siirfiice
reiit ai•e 4-lYOrr ancl are .llun~ the ed`-es of tlic clrain~lgc~~-,i~-s. 1.i~-er of zilt~- cl.~3- loaiu ancl .i sul~-oil of silty cl;ly Ch:lC
repi•e:ellilIl\`C p1•ofile: rei•v liarcl. sticl:v, ancl plastic. The a1Ultl.il precipiraflnil
0 to i iuclies, rery dzirk gr:tyish-bron'n, friable silt lo:ttn; I~ 15 t0 2 1l1CIle5; and the frosC-fl'e@ se.1s-z011 13 abotit 141)
_
_ranul:tr strncturE : neutr:tl. Cl.tt'z.
i to 17 iiiehes, brown. fi•iaUle silt lomuj. -rayish brnwii ,It :t Tle~e SUtl; :1i' ~
c~ti~c~d c~r iuelie~ : neutr:l~. e lt:_e(l mainl~- f~~r `rain, al'r:~l~t.i. ai~~l ~r,l--.
~1; t~, i~~che~. _•~•a~;.~t~-~,ro~~~u, firu~ ~ttt to: ti~~t v~•~l~;s i~,to Garfield silt3- clay loani, 0 to 30 pei•cent slopes, se~•ere-
1- to ^-incli pri~m~ : neti'tral. 13' eroded (C: C3).-`'l~iC soil occupieS rlle n.~'1'oxj' t'iil~_'etol:~:
2'' r-? 7'' iiiclies. tlarl;-Uro~c~~. firin ;iltc c]itt• lcoaui, alciio, ~t ;ili 1iiil t~ppet• ~ ~lol~es oii loez~ n~ ill rlie ~Ot1T11~:1~tei'll •
._:~l u1~l,ll. '
io:tni: 1)re:ll:S ittt0 prism; 1 tU ' incheS wiile, :ttid tlieu int0 1),11'G Ot ihe COlUIty. M0^t slopes ;11•e be~\veen S.111d '!1► 1)F2'-
an_ulac btocka im~h to J. iiicli Ncide; ncutr,l. cent: a few small~<<reas have slopes ot moi•e rhaii 3i_~ pet•r•e1ir, _
7.'he :znrf,lee 1-zoil, when moist; r.inze_,;: from A-erx- cl.lrl: and some nnri•uw riclgetops h:lx-e slopes of le:s r1han - pei•-
erra1-iz1i bt•owii to cl.ii•l: brown iii color- Tllle teanlre- of rlie ceiii. Repi•e,enr,ltive pro(ile:
~
snl~soil c•;11ine; from heavv silt loam to siltv cl,li• la.llll. •
. 0 co ~:i1clie~, d:~i•1;-l,ro~cii, iirui silz~- rlcir Io.rmn ,_i•^iittt:~i• ~c
_t, ll1
t:c~t ay T percei~r ot. some areaa consi~fis of I.clrl~in, rlire: iienr~•al. rtt.
Deari'tt711, cr ;ivCr~l.v erocled rTe@tt1a11 s-Oil-s. S co 4~_, iiiehe:~, (l1l•1;-Li•o«-u. fii•iil =ilty rl:lr, vello«•is!i-i,row!)
Z.IIiz l:z :i 1'i10C1E1',1CeIv we11 (ll'allled z011 fh.lt h,1= ;1 \'C1't. =iw• cinr lo:lnl 1 dep[1? Oi 23 inChes; bre:ZX~: ittio
pi•isms 1 inc:li to ? inclies ici(le ar.;i theil iiito :tn~-tilaa' EjIfif•k:
:l0\v1A• pel•ra,eable zt11-P=r);] :ltlc1 ii sa[»i•:lft'd fol- sliort pei•iocls l~ tn iiic1i thiek; clzY filu7s co;zc cLe prim3S m»ci a:i~~ul•i~~
iii ~pi•ijj_~. Tt llolclZ c~bu«r 'to 7 iiicl~e= uf «-.Zter Cl~.1C ~)1.111tS t~t~e~;~ • lieurr.ll. ~
caii u:e. Yt iz e.lzi- io NX-0111: C~ ~'Ept »•liCtt c.IIUI'ated. IiOOLs 4S co GU iiielie=,' reltoci-i•li-lir<,m ~ rrm lie. , y .
~ ~ •1.. arr il~ l0~»t •
' into Zli•isiii:; 1 tii ? iuelie~ \ricle siicl tl~eii fizro an~tilZr
~~enerr,lCt r.lE lon-er 1.1vers lll.linl~- alonr,, ~ l~ed f.1ce=. The 1~ to i„cti tliic~;; lieutrat.
fertilic~: i; metlitun. ~iji•f:~ce i•uiiof~ i~ n-teclit-un. aiiil tlle
]la-r..li•cl ui erozioil i; moder;lte. " Tlie texrttre of fhe npper suusoil is zilti- clcly or clal-.
_ltore t'il-aii percen[ of the acrea,re ia culiiv.ZCCd; tlie ?llll"ll a:-' 11J percen't of some areas con-zi-zts c►f _Lrhena. \;7r:`. .
i•e=t is f,li'Ill Nti-oodlo'tz. 11'lie:~t is tlie cli:ek c~i.~h cro~~. IL Nez ~'~1•ce. oi• P~l)ntl~e ~oil~. is, grow>> i» rotat1011 «-irll pea: aild a yt•ee-l1-111:i11111•e ci•ol) Tliiz-, -:-oil i~ ivell clraiiiecl :1iid slo«l~- l~e~•m~>,il~le. Ic iiol~l, %
C►1' 111 ,1 1~'112.1I-fallon- ~'OT111011. O'rliei' C1"'~~s y'1'0~~'ll :lre 1~e:13 ~ OL• 10 i~l~l~e~ O~ ~`.itel' f~l,li 1~~.111L; ~~Ul ll~f. ~L i~ ~[1~'l:~' ,
111C1 ~)tll'~t-: cl~~~-e~' C►1' :llt~llf:b f01' l1~11' O1' ^'eC11 111tllllll'C: ~111C1 `1~~(I i~l '1`r~~ ~~~~1@ll ~r~C; co~lseclue>>tl~-, 1C Ct111 ~:1?~il~';if~~~ .
:~'1';1L1 ,lllCl ~~'C:1zz c1'01)3 n11~~ ~r~lill ,1~ Ttlrliei' ll:ll'T~~~~' 1':Ill~~~ Qt 11101~`111't ~~Olit~llC.
~rl'sl~~ ff~l• =i~~?Cl. ll,ll'. C~1' 1'~:l_[ilre. =111
i~pz~~,i ,nI.~ ri, ?,:rrngeIi. T:e ~tiinc; reSl)Oii~l to =lill~ul•. I C.~l,a- r~~ot ~~eiieri•;1tio~i i~ N_ei•~- deel~. .C3:e fei~tilir,- i„Frli
l~iIlt\' ll!~:; ilIe-~;: N\-~~n~li;lll(~ ~'1'Olll) J; il;li lll .l 1':111^'c' ~lie~ -lll'f~1C0 1'llllOrf Is 1'.11~tiL.'uicl tlie 1i~1Ct11'C14f f :ll'l??i-L' rl'~;-?Qie
Fi•eeman silt loam, 5 to 20 percent_slopes, sei-erely ''jseve.
loreerlizn 93 ~erceilt of tlie aci•e1~re i; c•ti~ri~-,~tr~.l: tli.
erocletl ii=c.-,.-1~or.e rl.,~ii 50 percent of tlie sllt•fizice lar-er ~
1'
o~ t13i: ~oil ~la~ l~een rcmo~-eil b~- ero,ion. I'erCilit~- i= me- e=r i_ zeedecl to :~1f11fa or`r.i". ~~'liear i~ t>>c~ c.1iief .:r~►li.
cliw». to 1~,-.ti-. ~urfnca ruiiof~' is r~ipid: : nd rl~e 1l~lr;lyd of Otlier ci•opti `•roivn are l~ar)e~- ~>>il clrt- field pea~. _tll
ero>;io}t ia =e~-zre. _t~ milcll a; 10 l~ercpi2t. of soiiie nrea: crol>; re~poild to ziitrojen, sult~ii•, c1?lcl pl1n~I~l~~i~i~-. i C';1-
c~>>i~i~r~ of ilncroded I,i•een~.1~1 soil~. pability tlii:t Il'e--U ; iiot iti a. woocllaiiil zt'0111) O1• r.in-n•e =ireIi
'llie z-,ime ci•ops are grown ns on F, reeinan cilr lo,lin. 5 to
?C Pet•cellt slo1~eS. bllf• yIeIds .1i•e lowei•. (C.Zp:lbiliry~uiiit Ja1'Z'1a0I1 Se1'1eS
wovd1;111C1 ii1011j) 5: 11CL~i1] ,1 r.lll~re -itc} Tlie G.Zrri-oii Series i; iliacle u1 ~ uf ~ome-~~-lirit exc•c-zi~~el~~
r'reeman silt loam, 24 to ~0 percent slopes, sei•erely
eroded (s cC~!.-~.[ore th.1n ~0 ~~erce~it of tlie stii•face la3~er ~iraii1ecl. `r1ti-elli- or stoni- soil:; ih;lr foi•mecl u~icler 7~•:1=,~
of thii ~oil haz l~een r~~~l~orecl >>-'erosion. Surf:lce runot~' in `laci.llout«clsh miled~in tlie uj~~~er part ~~-itli ~•olc,inii:
is rapid: 1►icl clle erosIC111 hZZard is serl-re. Iiicluded in `1Gl'. Tliese -oils are oil iie:irlv level to moclei•afely Steep
mapping ,vere 1 few area= of Dearyton soils. terrnces. The annual precipiCation i; 1S to ?2 iiicliez. :uicl
the frost-f~•ee se;~son is lbout 170 clajs. ~
Tlie saine croPs are nroicn as oli I'i•eelnclil silE 10a111, a
•~on ser•ies are u~~ed f~~r ~1I'INL~' Ot
to 20 percent slo~~es, l~uc ~-ielcls are lo~~•er. (Cal~.li~ilit~~ Soils of the Gz1rri crops aild as f-armsteatls aud Sllbllrb,lll 10[,. ~
wiit IVe-3): woocUaiicl zroiip z); 110t 111 r,1n~e site) Garrison gravelly loam, 0 to 5 pereent slopes (GcA!.-
Tlii; ia the clomi,laiit soil in tlle Spokane V;11]cy 6:zt of
F'1•esh -11 atei' Mal'Sh fihe city ot Spol;ane:' llost Clape; are ljetween'?"Ind 5
Fresh water marsh (Fn,) colisists of slialloj\•, swampy percent. Iiepreseiit.itice profile:
po~lcis and of friii~es ~ii'Ol1l1Cl J~Ilces t.liat liai•e a fltictu.lti»~ o to 1~ ivc>>es, lil:~ca., ti•err fri;tble ~r1re11~~ ~o.u~~ ;~rQnUl:lr
N~•utc~~ ]e.~-el. The ~•e~et~ltion consist ~ ; stracture; siigl~r,t~• :lcia.
s of tule.,, l'eecl..; 111C1 X5 t0 44 iiieLea, dark-brown, friable rcr* gravelh• laam ; neutral. L-
cuslles. ''lie- .l2•eas nre of Jitt)e value ioi• gr;tzina, laut 44 to Go inclic-, iuulcicolorea s:llld; ;ravc], a,ia cot,viestones.
'6,e\ ja 2i Sa,.! fiPOFCA\E COli\T1, Wt1SH..INGTON - 19
'.['he Sttrface color, wlien inoist. r;iu-e; from I•err d:irl; tlie couiif llo.t slopes are uetween G aiicl 1:► perrent.
bi•o«-ii to blacl:. Tlte texture of tlie surface lav-er i; ~r.t~-- Iicp~•e.~e11t,Lti~~e pr~.,file :
clly ol• ~-err ~ni•:i~-ell~' lo.Ull U1 silt ]o.in~. '`lie.stib;oil r.ln~e~ 0 to 13 iiiclie~, ~,ta~:1:, rei•~- i'ri;iblc siit loam; gr~inul:~~• struct~ir~~;
in color froi cl.lrl: brown to ~•ello~~-isli bro~rn. Clu}~ .tnd ncutr:~l.
_ lilne 1~;~~-e acc~i~nul;~fetl on tlie~bortoni of tJie pebbles 111 tI1C 13 tu 62 inct,es, clarl;-Urown, rir»> loam that Lreal;: intu pri.,ims
lower -zRb~O11. The dept-h to the a1'.1\"CI Sllb-sil'Rtlllll 1':lllgeS x to ? siielies wicle ; sli-alitlr acid. -
~"1'nlll ~0 t~ iiiclie~. _~S lilliC~l ~l~ 10 pei•ce~lt of soiize ai ~:is t~' to 1-2 ctarl;-~,~•o~~•u, tri:~bte loaui;sti~l~tty acic~.
consists ot Bon(r or Plioebe soils ot• of otlier G1rriso» soil":. Zn pl;lcca tlie surfare l.tver is vei•y darl: bi•ow11. lt is 10
llis soil i; soine~rli:it exce~si~-el~- drai»ed and li:~s niorl- <<) 1(► iilclies tl~icl:. Tlie t~sttire of tiie sub=oil i•;ln~~es fi•ojn
eratel~- r~lpicl l~ernieal~ilit~-. It ]iolds .ll~out~ 5 inches of Silt ]u,im ro liYht siltx- cl.l}- lo.uu. rroiu 5 t~~ l~t~rcent, of
N~-:1ter thclt plailt; c.in iise. It is e.lsy to ivorl:. P.oots tlla lower sulisoil i-s*composed of ara.rel and tiro»es. As
pe►letrate fio tlie 1.1ver of slilcl, grave1; aild colklestoiies. »lllch as 5 percent of some are:1s consisc; of ]3el•liliill,
The fertilitv i; mecliwn. SLirfaee riuioff is slow. and the Deci.rt•ton, or Larkin Soils.
]ia-r.nrcl of ero,ion is sliayht. ' This soil i; well clr.lineil aiid moclei•:1tel~r pei'111e.1b1e. It
_\l~ottt 80 perceiif of tlie acreane i; cultix-~Zfed: tlie re:t is lloldS J to 11 inch:S af ~~-~lrec rll;~c. pl~1ii'ts c1i1 uze. It is
u.ed fc~r ~•r.tzinn, ~Znd as farnl_-zteads or silb11Tb111 lots. Ea=y to ,vorl:. IiriOI peneir:ltion is i-eri• cleep. The fer-
Mozc ot rlie .lci•e.l& i; irrinated. 7i•rioatecl are:l; ai•e uzzetl tility is lli;li. Sttrtclce ruiloff ia 111iC111111L ~Zncl ille h,ZZ,►i•d
tor orcli:~rd fi•tlit- .i~ld l~ti•ries: c:1bl~~ne, coril; cailfRloup, of erosioll is moder~lte. ~
GllClllllliE?1'-. Cl'IC1'~'. .111C1 ;Clll:lsll; ~-lieat. O.li-. :111C1 ~).11•lei,: ljore rh.lll 90 1)@1•.°e~it of rlie :lCCe~l`e 1S ClllCl~",l[tCZ; il 18
alfcllfa for h~1~-: ~iiid ~•r~lti; for see(I 1iid'p.1,rLire. .Dr-driiicl le-t i; nrazed. 11-lieat i; tlie cliief crop. Zt iz ni•own iil
11'@tla :11'E tl-ecl 'for -w7ieat, b:irlev, .lIICl ll:lili"@ lil111C11g1'ass. 1'OC11C1011 ivlill b11'Irv. Otlt-, peas, lentilS;-nlfalf.l. O1' ''1'atiS.
Thei'@ 1:z 110 C11ffiC111h' I11the 11:!8 Of ]IlaCjllllel'Z', but• the. =L11 nl'1ltiS :111C1 `'1';l?Il Cl'Ops 1'@sl)Olld t0 llltl'0o'Cll :]ennmes `
nl•~~-el i~ 1~1~•d oii ri~lla~-e iillple~ne~it~. :111 crol~z except 1•~'~Pnliil to slllflll•. n
i C~p~1l~ili~- iiic IIIe-?: Lu,un~- r.1ng@
lea•unies re~>>ond to nitro,•en. ~ome crops reSpond to sire.: llot ina, w00d1:111C1 aroup) , ztilfur. boroii. and pho--phoru_z. (C.1p.1bllliy t1111C IIIs-2: Glenrose silt loam, 0 to 5 peicent slopes {G,oA.}.-Thia
T..Q,llll\' 1'fll?~~'@ =1Te: 210C lll 1~~'OOC11;111C~ Q'rotip) ~ soil has :l. slll'f.1C@ I.1x"@T 1. fio 4 inche; t111CkC1' il1.121 ill.lt 0f
Garrisoii (rravelh- loam, 5 to 20 percent slopes CTIenro,e silc 10.11i1. to 20 percenc slopez. Stlrf.lc: rtuioft
- TliiS -oil h:l_~ .i Surf;lce l.lver 2 io :5 iiiches thiiiner r,i,1n that is zlow. clnd the eroz~o!i haz:lyd is;li-lit. I11CIl,cleil in m1p-
~:►f G~1ri•i~c,il g•1~-ellz- lo.lin; 0 ro ~ percelit zlope-. ruiioif l~lil.-• I~'cre sm:~ll are.~; of L lili~,- ~liicl I.~ear~-toii ~~il:.
is »leclitlm. .iiid tlie eilosiou hazai•d i: moder.lte. Z`lie Cnme crop-;- ai•e. o-i•oi>>i is oii C=leni•o-se. silr loam. .5
Tlii; sG11 13 ll.zed ]11 11111C11 tlie z.lllle lv,1v :la CT;11'1'1 ;Oll t~ *20 pel'Cellt SIOlIe-z: 1ll RClCl1f1011, vegetilblC's 11'2 '?'1'nwll.
ni•;r-cllt- lo,llll, 0 to ~ l>erce~itslopez. (C:lp.1bilirt• Luli't. (Ca-p:~bilit.~' 11111C. IIe-?; Z,a.lmy raiine Site: not iil ,1 N~•oocl-
I~"c-5:* Lo.lm~- r:~nne siLe: ilo't iii a~~-oocll.lnd group) l;lliCl ~roup} . Cari'1SOIl N-erv gra~-elly loam, 0 to S pej•cent slopes Glenrose silt loam, 20 to 30 percent slopes lC~C1.-~.'llis
(C't1c5).-Th1~z z011 Il.l: .l fI1ll1Ile1'. 11101'8 al•at-elh- SU1'f ,1ce laver sOll ha5 :L Ctll'face l;l', '@1' 3 f0 J 111CIleS tlllllllel' illilll fll.lt 0f
rh;1n G.7rri-o» ar.lx-ellv 10.1111. 0 to 5 pereent -zlopez. ;ind CTlenro-se =ilt lonm. 3 ro ?Q percenc =10peS. till•f.1~e itllloi~
l~~,lcls le=.; rl~;lll ~ 111CI1e, of i~-,Zrer iiiat pl:uuS e.lll il=e. The i~ r~lpicl,:Incl tlie er,>l:c►n h~izard i-~ei-ere. ~About -5pereent
LI'I'~Wel Cfl11;E'~ l'\tl't'111C Oll Ti111me 111:1CI1111C'1'\'. Of sOllle ~11'e:lS C011:1=t~ nf Bel'lljllll :il1Cl ~ca1'\'f0I1 zG1k.
1i11k:]i a- ~ 110i•I•cI»c of ;c,me are,is eolltiizrs of orher G;lrri=on T1►e Saine Crop~: :Zre 2•roivn.la O11 CTlenrozL~ ln;un. ro ~:nalS. (C.1;1,
1;11)lllCt' 11111G I17 e-5: Sii111ow 1•1i1`e =ire: iiot ?'i pe1•ceii't slope~z, l.qle ilioi•e of filie acre:l`~~e is- iii gr,z-: aiiil .
111,1 WOC( l:l ll(1 ^_'4lll) ) le-11111E's. (C:il).lI)I I? i 1' Lilllt IlIe-? .1111\' 1',l llzl', ziie ;
Gari7S0Il ver3T stony Io1m, 0 f o?0 pei•cent slopes "ut in .1 w00d1.111C1 nroup) - iGno' -T]lk soil holcls le:s rh,111 5 iliclies of water tliat Glenrose silt loam, 30 fio 55 percent slopes (C~0,.-Th is
1)1,-- ; c:zn ii=e. a11C1 ic is too -zf011v t0 be culriv,Zred: A: soil'h.1; a surface 1.1ver 3 to 5 inches- tliinner than tIlat of
''Cll :1s 15 pci'CC11C Of a'O111C a1'@.1s COllslsts of otllei' C.ITr1S011 CTlelll'0-s0 silt lo.llll. .5 to 20 perCe11C slopes. Sill'ft1C'C 1'llll-
S~)1ls, 111(1 ,1s 11111C11 RS 2 1)el'Cell[ 1s l]1~1C1e ll~) Of y'1'~1111t~ Of~ 1~ 1iZ1~1C1, tliicl f11e el'psi011 Il~l'L.il'Cl 1S SC~'~t'e. =L~)O~tt 3
otlt-ci•ops. . percent of some are1s consi-sfs of I3erii1ii11 oi• De:lrytoli
1~;11~ilir3T
'I'hi~ :-riil is u=v(1 1or zr,lziiin i C^1):lj)lI1tC lillli ~'Xs-n sotls. r~llis soil i; ~t=ec1 0i11~- foi' ~-t•~Zzi»~~~ (C';i
S11;1.110w r;lilzo ;iCC: not, in a ~rooill.~ncl nroiip) wlit ~~Ie-1; loirtli Ex17o=ure r~lll`~e. 'sice: nor in it N~-oocl-
1[l ll Cl y'1'Oll i) ) Glenro5e serieS Clenrose uravelly silt loam, 5 to 20 percent slopes
(GrB). ff1115 soil liolds fi'Olil 7 i0 9 111Cl1eS 0~ Nv.1Tel' fll,l¢
Tlle Glem-o-ze zerie.s consiSts of well-clr.lined, inoz-tI~- 1~1;111ts can lise. Siu,ill areas of Bernliill :111C1 D@Zrti-ton
l11E'Clllllll-t'x[ill•e(l =r)il,. 7'he-e soil; foi']]leCl 1111C~E1~ nrass soils ~~-ere included in m~.pj~inz. V
t111C1 SC.1tt^~•ecl l~i~~c ti'eC: 111 ~1.1CI~1I I'llI Dll\E'Cl 111 C~le lli)1)@1' T~115 SOll 1S i1seCl 111 ]]1tiC'Il ~~1Q 5.1111e \r;lC ,ls CTlelll'0~e S11t
i~art. NN-irli loe~s aiicl ~-olc~liiicash. _lt;ulv ;1re.1sare rr.ll-elli- ~oa1>, .5 fo -20 percenc slopes: but yielcls are ]ess. (Capa-
~)r s'ro»>v. Tlieze zoils are neclrlv level to rery :teep. 1']ie ~»Ilt~' lllllt I1'e~: Z.oam~- ran`e sii-e; iiot in a «-oodlclnd ?
;Illlill~llp>•ecipiiaflnll 1-3 aI7011t 2x i11CIlC.=. a11C1ihe frOSi-fI'ee Int-n1l1))
season is abOllt. 13.5 davs. Glenrose gravell}• silt loam, 20 to 55 pei•cent slopes ~
Glenroz-e soils are ucecl for cyrnili, peas, lciiril's. vege.rables, (GrD).-rljlii; soil holils i to J iiiches nf w,lhcr rh,tf p] 7nts ,
~Il f;llf:L :illCl ,111(1 fol' o'I';1'/.lll`'. C.ill 11z:C. Slll'f,1CE 1'1U10ll' ]s T.il)ICl, aiid tlie ci'nzlt)]l h;l`/,sll'il
Gleni•ose silt loam, 5 to 20 pei•cent slopes (GpB).-Tlii.;; i~ se\•ei•e. rlicltided in mappm~ ivei•e .irea; of Bernhill ~
soil occur, ()n glnci:lt('[l lll)lancl; iil f hc eazt-centr.ll p1l•f of silt 10:1111, '0 to .55Perccnt. Clopes. ,
92 SOIL SiiCtVE1'
TABr.L 7.--Inlcrprcfation nj euflbrccrinrj
- a`
- ~uiiabilit.r :is soiircc Soil fc•iL•iirca :~(fccting- . ~
. ~ . ,
Suil ;k:rit'; o!'
T':irin Imnds
and m:qp symbdi
'I'opsoil ~ Sa nr! Gr:ivcl ~ I;oad fill ~ ITigha-ay- Inraiion ~ Dikc, a• lrvec, : •
~ • • ' ~ :
~ ~ ~ ~ Pescrvoir arez ~
Dragoon (,OrC, ' Good to -Nut silii- \ot sliit,- 'r-1air io - Moc'.cratc to vei•y ltiah Low stability; \Iodci•ate to '
DsC, DsD, , poor. ~ ablc, abic. good. ~ susceptibility to scroiperriefu; to moderately ~
DvDI. ~ ; • fro=t acrion;~mod- impcrciou= ! ropid pcillle- ~
• , erare to rnodcr:rtelti- ~ Nvhen com- ; ab;lity. ~ •
rapicl pc•rincnhilitr, ~ pactrd; low .o ~ i
IoN\' to moder:itc ~ 11100er,lte ~
,l2rink-=ivcll . •hT•i~ik-~~~•~•!! j ; ~
' porrntinl. . i:ucei!ti:d. • ~ .
rioika (EkS, t:C, 1":tii•------'• _Not. st:it- ~r:it:►l~l^ :!t. ~ « s~_ ; ~ ,
Good_ to lii`h ii.~ I o~r ~cat;ilit ~~•Ioclerafe to ~'er~-~
E!0) ~ able. de~~th ~ ' rll; tr to fro.~t ~ ~ej;~iT:er~•ioi:- t~, ~ rapit? perme-
' urrater + :lCi➢fjilJ moc'ei:ate to ~ impe~rvioit: .ibilirr. I '
tl::! u GO
! t•r~_ ra2~id ~~crmG-
: hen co~n1::~e[- ; " r
; inchos. ;t!>:i:t~•: tcx\- to mo:;- ; ed; lo«- to n?o:'..-
t'!':i(L' .'',i'Iilk-`l\'('li ~ ('I:ItI'' sf'I':llr:- _ ~ •
: , ' l~u~~:•nti:~i. ` .ti•;r•ll ru~~•~:ti:il. ; :
l:mr.lcnc -:i!; I':tii'-----z NOf• Stlif:i- ' \oD suita- 1'ery h:gn vitscciHilAl- ; I.vtii. st;►biiiii-; •lloclerate rc.,
(04. • ble. i ble. E ity• ru :rv-t actio;i; pervi~~~~~ v..•hri! ~ modci•atelr ~
~ .
f ` moric~~•:~tz to ~iioc'.- co~il}~arteri: lo\\• : .-lo«' l~c~•►~~e- ~
et:►rely Zioa- pcrnic- io ir~ocie~•:~t< < ai~ilir.•. ,
; i .li~il:t~•: lu~r to n?oc:- j shriii;-,l~-ell ( -
e~•:~re si:2•it~i;-~~;•~~11 6 ~;ote;lii;,l. ~ R
s:ztur:ifict? ; E '
1!l :111C~ Sp1'112g.
~ ! .
#
r
Freeman (Fa', F;Zir fu \ot zul:i- Na't sitif:t- ~ Fi;or•lioder.;ce to vei•ti• h;g11 _lloc'•er:ae stai}si- Itoderai& slo«• j ~
ra63, FaC3!. • poor. b1e. 6:h% ~ >>iseeptihilitr to ii\-; iniperviotls to verv ,lo~~~ ~
. ~ ~ :ro~;t :iction; 1110dl'i'- when ccmpact- perme:~bilifr,
i . .
' :ttel~• .:l~~~r to i-er~- !.x~- t_ -
, ed; to moc, f ;
~ ' j~~Jll" i)F-?'ll?C:t})iIltl'~ { Cl':1(C~ c1~T~I2~:- i ~
tt) Inodcrate j, ;r:cll potenti:d;-
poccn- soilc crack wl:c:u •
cial; s:iti.a•ated in dr~•. ~
, _ .
Garfielcl (GaC3_ Fair to \ot sliita- \ot suit.t- Poor_____ - N`o; vrnte to vcry high Moderaie st;lttiil- NIoderate to `
' good. blc. blc. -i~usceptibility to frest i[y; imperviatts 5lo«• pcrme- ~
. :lctioil; inoc.cr:tte to ~-iien coropaci- abilit~-. . i
~Flo«• perme:ilAl+ty; ed; i2lJCler:lte to .
»>oderace to liioli hi;h shrinl:-
shrink-~\vell puten- ~\~Cll poteuti:il. '
t1:1l. . ' ~
~ ` .
Garrisoll (GcA.~ Fair_ \'otsiiit- Coocl belotiv E1celIeni•_ Sli`ht to no susccpti- Moderatc stabil- Moderatc to
Gg6, ~mG, • nble. sw•facc bility to fro-t 1c~t'
~ iou; itr; pervious very rapid
GnB). layrer. mot(er;zte to vci•}- n-lien co►n- pei•meability.
. rspicl permcnbilitr; pact,ctl; lo«- .
)ow shrink-swcll shrink-swcll
potential. potential.
See footnote af end of table.
SPO[:A\I: COU\TT, WASHIITGTO\ 93
~~1~nJ~~'1'/1~'.~ r,~ .~il.•-C'c~~~tii~ue~1
Suil fi.-:ilitres :iftccting-CO11ti11llC(l
. ~ ~ . _
F:u•m ponds-
Coi►tinw:cl :1gricii1tur.il 1'crr.tcrs ancl ~ Scwa,,c dispo~.al
' clr:iiua('c ; Iri•ig:ition ! clix-er;iotis ~ «'atcrwars ~ 1ivl~l; I Tra(Iical~il:;t'
. ~ , .
: -
Idlll~):11t~I11C11~ ~ ~ i '
r ~
'Very lum• sl►rar E\Iodcr:itc to I \Ioci~~~•;ltc iil- 1,0w rcsist;►ncc Low i•cs:i:itaucc iu \Ioder•atc to {Vcry lom• ;il:(:;:r
~ stren,,th: seini- ; »iodor;trely I t:ikc ratc; to rrosion: c►•oSIU11: I11QCI- 11106•i;ltely stirlig,tli: lon-
perVioii; to im- • rapicl pcrme- inuclerate inodcr:lte to cr1te m-ntrr- ~ rnpici pcriilv- ; 1oncl-carr;: ing ,
pf-rVioiia ~~-i~~~tt ' :Z~;ilit~•. ~~•:itc~r-liul~li~~` »>nclcr•Ztrly 1101clin-Z caErnc- ~ ahility: Iut:(l- . ca~>;irirr:
~•c~~t~i>:~ctcrl: !uc•- ~ C:tI~a~•it~-. r:ipi~l ~~f.rnic- it~•: ~•r,.~~•t:itiolt iv-a;~~ ;i~ ~i uf':- ~ tnuclr•r:iie :c,
~li~ini e~►►i~~rt•;~_ • :1 b ilitr. clitt~ci:lt to eratelv r:ipirl ~ i"ndei•:Z,c•;y -
ibili;y: low woirr-holdi~~~ ~ n1pid I::.•:::. _
~
~t:~i~ili;~•. i ~ on W.rom ' j c:~jmc•ii~•. :~1~t'
..y
; silt loani. ; ~ ~
T.ow :liear z-cm,igtli; _llodcrace to ~_1lodc►•;lic to )[ociante i•csist- \Iodciate resi- . ~_llocle= to ~ Lom- -sheni•
:r,iliipcrViou= ro rrry rapid ~ 1110drratety aiicc to'ci-o- :incc to cro:ion; ~ i•er-y. i•sI-,id ; sti•c»ph: :nocl-
• inipr_.i•viou~ «-111,31 ; perineaUilit~-. !•nl~iri in~:i!:e sic~n; i7ivclei'- mod~~rtife ~~-ater- 4 pei•inr:~bilit~-; 1 er:lte to i_?~~h
co~nErtct~~~l; =!i•~l~t• ~ r:lt(:: :tlo~!t r• atc ro ~•e►•~- liolcliu;~r c:l- , t►~owic~;ttc ~ ~ 1o:«t-cac•i•:-in•
cun:E~~•~•~:ii~iiitr. ! ` atc Wn,~*r- r:1picl pi~t•ii~~- paciry: Vcgoa- i w:itc•r -hoicling ; c:ipacity: ^lotl-
lom- st:ibilitr. liubli►,.g, i'a. ! :1bilir.r. ~ tiatZ ~lii[ii•ulr to c:1 p:l cic ~ ; cr:~rc ri) i-:-~•~-
1~:~~•i;~•. ~ c~~r:li~linc exccpt • r,-~~~i~i pcr:~:~.=-
' • UEt 7:.IUl~;;l sl~i :ll)Ilil\',
' l U:l t 11.
\ ".l't- lo;t' =he:lt' . 1TU:~c:l:~i~• i0 , Alodvl:ltr lil ~ \[Oder:tre r.r ~si 1 r ~ _T- i0 , (l:l:![~ re:i;c- 1Iocl~r: ~iie to
, Vc.ry luw ,i--..
=tmupli: iinp+:r• moclerjcly 1:110rleratcly ~ znre tu cro- ~ :udcc to ero:ion: motlvrarcly •,,•,rl.
vioui nlmn com- ~ duu- pe2•I11C•- ~ ;low im:t!:e j sion: ii:ocler• ~ vc, hit,h w:iter- : sloe• pC•1.1 nc- ~ el ntc to
1):Metl; nioclri•:Zte E :1bility: s:ttu• ~ r:lie• ~*r,r\- ~ ai:.tc tnocl:~r- ' liulcliu~, c:~p:~c- :il:ilit~•:~•L'r~• lo:lCE-C:11'I":::~_
l0 Illgh co►~il3re~~- I ratc~cl i~i ~~•iu- ' lii,_1~~ ~~•at~~r- ~ at~~lr ~lu~~- I i.~•; c~scel~t fc~r i~i~rl, ~~•:itrv-1.-~uItl-' c:qpa~it~•: _r_od.
ihi!iti-; mocletato ~ tL.r a iiri hoirling ca- ~ periiic':1biliry. ~ s:1lt-tok.i:n nc . ing capacity; . i•1•:~tv to !::o•_3-
;tabiliry; ci•:tc::s ! eprh:s , pa:it~-.
? vcic•;, ~~C,,.
_ ~ . ~ t:1- S:lClll':icecl ils ,cr:~~~l~• ;1_~•..
wt►eii clry. • ; I *.ioii cliMcttlt to . lriuter :tnrl . pc•rmcak>ilit ~ .
e~tc~blish. ~ epri»g. ~
~"ci•~- lo~.t• sl~ear ' 1Ic►ci(:i:tt'•1~• jlIoclci:itclr ~\Ioclc!•:ltc rcSiSt-, Atodet:ttc• i•c=i:t- .T[odt•i•::t~•1~- ' ~"er~- lo~~-;i:_.-:~-
;treii~,ch; i»>per- ~ Slo~r~ro ~•crr ~ ~~4umr to slotic ~ ancC i0 Cr4- ~ an4c to (.ro=inn: ; slow to Ver~• ! stren,t't1: _-.:.6d-
Violi? \\'I1C11 COtll• I ~lom- i;i'r1110- hital:e :atc: , ~ion: ll)o(l(•r- ' ~•ci•~• lii~,li a;atcr- =10«' j~erm`c• ~ (•1'~i[~:
j);ICf~_CI. IIlC(ISiUIl :1
~ 1)1117: . ~:1 ;71- ~'I:l'~' tllff~l ' :►;l•1~' ~~tl~•; lr) ' ill~l(~111~, C:li);1C- '\'l't'1' • C:II'C~'lll« l"..;_
eut 11~~re~iit~ilic~.. , ►•:~tc~cl~ i:t ; ~r:t~~.r_~;ulrli„•: ° \•+.•r~- Mom- pqr-! itv: Veget:►tion hith
• m•atec- , pariir•
il~ur.ic~~:lL~~ st:ll~:!- =1~ri~i~_ : C.~p:lrit~•. ; ~uh•c~l~ilit y. ? f:iirl~• ca-~• to ' holrEii~,r ca- , ~•r.~c~~ly = to
itr: :~.~its cr:;ck C'st;~l~lisIi.. p:lcit~-~ ~-ec•~• :lo~j-
_ , w~licn drY. c:11s:<i 1Fl
_ i _ . .
; ' . spi•ing.
~ -
Vei•y low =he:ii• \Iodei•:Zte to 510m• intake ~'_\Iodcr:lfC CCsI=t- \Iodci•:itc i•e,i;t- '_\fodeccitc 10 i Very luw ~~,::-:;i•
scren,tli; impi:i•- slovr perme- ►•at•c; Very ~ ance to ero- :Znce to erosioi:; ; Slow pei•i»e- I sireii,tli; nnuci-
. Viou.: Wlien cotit- abiliey. ]tiigh w;i1C1'- ~ sion; tiio(ler- vci•r hi_,li ! sbilit\-; Very ' ernte lonii-
Irncted; ineclium to Iiolcii>>, ca- t atc to slom' wa[cr-i►olding ' hiizh -watcr- carryin,'t:.-
high con1prc:i=ibi1- lxlcirr. ` pci•mcal;ility. c:ip:lcity; = 1101(fi►z'u, c:l- p:Irity;
iir; mocler:ite . ; Vcgetatioii crste tu ;I•)-W
St:lbility; soil ~ f:tii•13- c:lsy to r•r
. p 1urn bit;._:-; .
cr.icks when clry. cst•►l~li3L. ~ .
. ~
1[i~i ~hearsn•en~`th; ~toder:ite to T:l~~id int:►kc• ; lioclerc~r,e rc_i~t- _lYoder;~ic msist- ;\toderatc to ! I-Ii;h shc;lr
-7 /`y► pcrVious m-hen Vcry r;ipid ratc; modcr- j ;luce to ero- nncc to cro~ion; I verr r;lpid i strength: i?i;h
cump;icted: sli`ht pei•nieabilifr. ate to lon' 1 sion; moder- mocleratc to lo~~- i peri~ic:ibilit~•; load-c:li•rritig
f COlllpl'C~l~)llli~'J ' m':itcr-liolcling ~ ate to Vcry m-atc!•-liolding i moder.lfc to ccipacity;
nioderate st:t- c:tpacih•. ~ rapicl perinc- capacity; \-eoe- lnm• wlter- moclerate cq
bility. ~ nbili t r. t:ition 'difficult ~ holdin` ca- x•cry r:ipid
to est:tblisli oii p;lcity. pei•intc:l}Jllli~'.
• ~'er~- ston~• loaln, ~
f:iirly c:isr on
~ ' ot,hci• soils.
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SCALE i N FEET Ir la,29-93
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. T R A C T I SHORT PLA7 e40 835-93
HAHN ENGINEERIN6 N 8623 8 DIVISIOI~ SP,OKANE,WfA
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NANN ENGINEERING N 8623 B DIVISION SPOKANE, WA ~
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ERGENCY ~
~ . EASEMEN~
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PLa-T No. - -
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TRACT .
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S P OK
3 ~ pIVyS~ON .
ro
~NG
INEER~N ` ~
u AH
Hahn En gineenng, Inc.
East 55 Lincoln Rd. • Suite 102
Spokane, Washmgton 99208
(509) 467-1550
FAX (509) 466-1729
- , -
j ~
November 1, 1993
v 1g ~
Nr. Christopher J. Reich ~3
Spokane County Engineers
Public Works Building
W. 1026 Broadway
Spokane, WA 99260
RE: HARDITVG PROPERTY - 2nd SUBMITTAL
Dear Chris : -5 ~&*T P(,*r No' $35
Please find attached the latest submittal of the Harding Property
proj ect . I bel ieve you wi 11 f ind that al l the redl ine comments have
been addressed. Should you have any questions, please don't
hesitate to call.
Very truly yours,
HAHN ENGIr7ERING, INC.
. t,'
Ken Geibel, E.I.T.
Associate Engineer
SPOKANE COUNTY OFFOCE OF COUNTY ENG9NEERS
CALCULAT00N SHEET
Description: \LC c.--~NE:cv, Project [do.:
Calc. by: Date: J► 2•cl~3 Title:
Checked by : Date : Sheet ~ of ~
Notes :
Pl (~-r~-~ca ~a ' d+°t 5 L
42- = 2 . q I
A = q.q 1
Cw~i~ ~ > L
► _ 2-~ °
~Z ' ASZ C9~-~3.55~ ~u~e.v~ ~s AbEqc~a-r~ ~
574-nvO ZtaO
fav = 2.q I°%
C,.z
~.cv(o
C,►~ ~K S >
L,= Y13•o~Z
4-
G~9-= CrIi-
~
I
S P O K A N E O U N
OFFICE OF TI-iE COUNII' ENCINEER • A DIVISION OF THC PU131.iC WORKS DEPARTMENT
Roiiald C. Hormann, I'.E., County Engineer Dennis M. Scott, P.E., Director
Date: 1 v` o? 5.q3
-
ANV.1 ~N~,~h►~E~~Nc.
SUBJEGvI': ~,~,,~c~, `~,~-o~-► ~3~
Gentlemen: ~ ~ Q~-~`~
A review of the road and drainage plans for this project bas been accomplisbed. Areas of
concern to us are indicated in red on the attached plan set and calculations marked
"ORIGINAL". Please make the corrections and resubmit them to this office in order that
the review process may proceed. When tbe nlans are resubmitted. mark all cbanQes on the
revised print in color.
Please note that the plan set and calculations marked "ORIGINAL' are official public
documents, and must be -returned with the revised plans and 'calculations. Review of the
revised plans and calculations will not proceed until the "ORIGINAL" set is returAed to the
County.
If you have any questions about this review, please contact us at 456-3600. Thank you.
Very truly yours,
Ronald C Hormann, P. E.
Spokane County Engineer
Christopber J. Rei , E.I.T
Development Services Engineer/Manager
encls:
cc: project ble
reviewer (comments only)
k\w\fu'evWwrW6 BI-oadway Ave. Spokane, WA 99260-0170 (509) 456-3600 FnX (509) 456-4775
, Inc.
En 'neeri
Hahn n
91
East 55 Lincoln Rd. • Suite 102
Spokane, Washington 99208
(509) 467-1550
FAX (509) 466-1729
October 14, 1993 .
Mr. Bill Hemmings
Spokane County Engineer
Public Works Department
W. 1026 Hroadway
Spokane, WA 99260
RE: HARDING PROPERTY
Dear Hill:
Please find enclosed fior submittal, the Drainage Report, dated
October 11, 1993, Drainage Plan and Road Plans for the above-
referenced project.
Dunsmore Land Surveyors, Inc. are providing the legal surveying
for this proj ec t.
Please contact me with your comments andtor questivns.
Thank you.
Very truly yours,
HAHN EMGIRlEERING, INC.
4.~........._~.._.._..,----~~■
Randell G. Hahn, P.E.
President OCT 1 8 1993 Encl
'
„
~J~'~~~,1C,~. ~~.~~L°•~.' ~rJ~-~;?.1~6~)~~or-~
~ ~
SPOKAN£.Gf~...i.-~~~~'
ON ~
QROJECT
SUBMITTAI
RETURN TO COUNTY ENGiNEER
~ .
H Ag,i]r I N Gr P R-O E R-'T' Y,
DRA I NAGE REpOR'T
,~T 11. 1993
. ~ ~,~D ~/~C1 GL+'~- vv~
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0 2St32t
9FcrsT~^~~C'~c,o:
ti Al.
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EXPtRES ~
RECEIVED
HW '~I~ING ST . ; OCT 1 8 1993 ;
N. 8623 ,B DIVISION ~
,
n ~yT SpWNE, WASHINGPON 99248 'i
curG~ tiC Q~.~~t~ E _ ~~►ti~1` SPtEER
5 467 .,•1~5~~--_- - - . _ ~~~.~'~u _ . _ _ - ~
/~/'~1 1 .•i/ 4
or 7 r11 L F~t~ B~. N~GtNEEA'S pF tiCE
PnKAtsE GOUN1 E ~
~
OFk"
~9~3 ;
e~
QAOJEcT #
SUBMITTAL# ' -Pn~
i'i!~i~e,~~
SO CoUNTY ENG~NE~~
RETURN
D►~A.~,~~.G~
@rji,`a RT Sp 83~ -93
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BOWSTRING METHOD (TEN YEAR STORM DESIGN) PROJECT= SP 835-93
DETENTION BASIN DESIGN BASIN: A"
REVIEWER= PREBLE
NUMBER OF DRYWELLS PROPOSED DATE= 10-Oct-93
0 Single (typ 1 Double (type B)
220 Pond floor area
Total Area ( calc (see H1 ) 1.41
Time of Conc.( calc.) (see H1 ) 36.27
Composite "C" ( calc . ) (see H1 ) 0.28
Time of Conc.( min ) 36.27
Ar ea ( Acr es ) 1.41
C' Factor 0.28
Impervious Area (sq. ft.) 3200
Volume Provided, ( cu . ft.) 208 = 135.1 storm (tot 325
surf ace= 325
U/g= 0
Outf low ( cfs ) 0.0018332 0 1
Area * C" Factor 0.40 .
#1. #2 #3 #4 #5 #6 #7
Time Time Intensity Q dev. V in V out Storage
Inc. Inc.
(min. ) (sec. ) (in./hr. ) (cfs) (cu. ft. ) (cu. ft. ) (cu. ft. )
( #1*60 ) ( A*C*#3 ) ( Outf .*#2 ) ( #5--#6 )
36.27 2176.47 0.89 0.35 1030 2180.46 -1151
5 300 3.18 1.27 509 300.55 208,o'
10 _ 600 2.24 0.89 717 582 . 78 134
15 900 1.77 0.70 850 716.13 133
. 20 1200 1.45 0.58 928 795.08 133
25 1500 1.21 0.48 968 835.63 132
30 1800 1.04 0.41 998 866.57 132
35 2100 0.91 0.36 1019 887 . 92 131
40 2400 0.82 0.33 1025 894.07 131
45 2700 0.74 0.29 1013 883.00 130
50 3000 0.68 0.27 1012 882.59 130
55 3300 0.64 0.25 1029 900.02 129
60 3600 0.61 0.24 1054 925.16 129
65 3900 0.60 0.24 1108 980.08 128
70 4200 0.58 0.23 1140 1012.95 127
75 4500 0.56 0.22 1168 1041.04- 127 80 4800 0.53 0.21 1169 1042.31 126
85 5100 0.52 0.21 1209 1082.90 126
90 5400 0.50 0.20 1222 1096.66 125
95 5700 0.49 0.20 1256 1131.28 125
100 6000 0.48 0.19 1288 1163.51 124
DRAINAGE POND CALCULATIONS ~
Required grassy swale pond storage volume
= Impervious Area x.5 in./ 12 in./ft 133 cu. ft. ~
provided: 135.1 cu. ft. ~
DRYWELL REQUIREMENTS - 10 YEAR OESIGN STORM
Maximum storage required by Bowstring = 208 cu. ft.
PRvvIpEp - 3.1 s- e,r-, :
- A -3
TIME OF CONCENTRATION (minutes)
Tc ( overland ) Tc ( swale ) Areas "C"
Ct = 0.15 L2 = 380 1.34 0.30
Z1 = 33 0.07 0.90
, L 1( A) = 160 Z2 = 33 0.00 0.00
N(A) - 0.4 B= 0 0.00 0.00
S(A) = 0.015 n = 0.3 0.00 0.00 s = 0.016 0.00 0.00
Tc (A) = 6.41 d = 0.5 0.00 0.00
Total A Comp "C"
L1( B) = 0 Tc ( gu 25.49 1.41 0.33
N(B) = 0
S(B) = 0 Tc( A+B 6.41
0=C*I*A= 0_46
Tc (B) = 0.0
Tc( tot 31.90 Q( est = 2.05
Intensity 0.99
A = 8.25
WP = 33.0151
R = 0.2499
V = 0.25
Tc ( tota 1) = Tc ( over la nd Tc ( gutter ) Tc( gu 25 . 49
Tc ( over land Ct*( L1*N/S~0 . 5)"0 .6 ) Q( est 2.05
Ct = 0.15
L1 = Length -of Overland Flow Holding = 13.54
N= friction factor of overland flow (.4 for average grass cover )
S= average slope of overland flow
Tc ( gutter ) = Length ( ft . )/Velocity ( ft ./sec . )/60
B= Bottom width of gutter or ditch
Z1 = inverse of cross slope one of ditch
Z2 = inverse of cross slope two of ditch
. d= depth of flow in gutter (estimate, check estimate with Flow)
Area = d*B+d~2/2*( Z1+Z2 )
Wetted perimeter = B*d+( 1/sin( atn( 1/Z1 ))+l/sin( atn( 1/Z2
Hydraulic Radius = R= Area/Wetted Perimeter
Velocity = 1.486/n*R" .667*s"' .5
Flow = Velocity*Area
n = 0.016 for asphalt ,
s= longitudinal slope of gutter ~
Floor outflow = (.36"depth/hr. per sq.ft_ floor 1 ft depth/12" 1 ~
= 0.00000833 cf s per sq. f t. of f 1 oor ar ea
. ~
/-N " "1
BOWSTRING METHOD (TEN YEAR STORM DESIGN) PROJECT= SP 835-93
' DETENTION BASIN DESTGN • BASIN: B"
REVIEWER: JWP
NUMBER OF DRYWELLS PROPOSED DATE: 05-Oct-93
1 Si ngle (typ 0 Double (type B)
200 Pond floor area
Total Area ( calc (see H1 ) 0.17
Time of Conc.( calc.) (see N1 ) 5.00
Composite "C" ( calc . ) (see H1 ) 0.55
Time of Conc.( min ) 5.00
Ar ea ( Acr es ) 0.17
C' Factor 0.55
Tmpervious Area (sq. ft.) 3210 •
Volume Provided ( cu . fit.) 208 : 141.6 storm (tot 371
surface: 366.5
u/g= 0
Outfilow ( cfs ) 0.0016666 0 0.3
Area * C" Factor 0.09
#1 #2 #3 #4 #5 #6 #7
Time Time Intensity Q dev. V in V out Storage
Inc. Inc.
(min. ) (sec. ) ( in./hr. ) (cfs) (cu. ft. ) (cu. ft. ) (cu. ft. )
( #1*60 ) ( A*C*#3 ) ( Outf .*#2 ) ( #5-#6 )
5.00 300.00 3.18 0.30 120 0.50 119
5 300 3.18 0.30 120 0.50 119
10 600 2.24 0.21 147 6.43 141
15 900 1.77 0.17 166 25 . 73 140
20 1200 1.45 0.14 177 36 . 92 140
25 1500 1.21 0.11 181 42.14 139
30 1800 1.04 0,10 185 46 . 35 139
35 2100 0.91 0.09 187 49.26 138
40 2400 0.82 0.08 192 54.23 138
45 2700 0.74 0.07 194 56.77 137
50 3000 0.68 0.06 - 197 60.62 137
55 3300 0.64 0.06 204 67.48 136
60 3600 0.61 0.06 211 75.54 136
65 3900 0.60 0.06 225 89.41 135
70 4200 0.58 0.05 233 98.70 135
75 4500 0.56 0.05 241 106.86 134
80 4800 0.53 0.05 243 109.32 134
85 5100 0.52 0.05 253 119.82 133
90 5400 0.50 0.05 257 124.62 133
95 5700 0.49 0.05 266 133.72 132
100 6000 0.48 0.04 274 142.26 132
DRAINAGE POND CALCULATIONS ,
Required grassy swale pond storage volume ~
= Impervious Area x.5 in./ 12 in./ft 134 cu. ft.
. provided= 141.6 cu. ft. '
DRYWELL REQUIREMENTS - 10 YEAR DESIGN STORM
. !
Maximum storage required by Bowstring = 141 cu. ft. ~
provided: 371 cu. ft. .
TIME OF CONCENTRATION ( mi nutes ) '4
Tc ( overland ) Tc ( swale ) Areas
Ct = 0.15 L2 = 380 0.07 0.90
Z 1 = 33 0.10 0.30
L1( A) = 0 Z2 = 33 0.00 0.00 .
N(A) = 0.4 B= 0 0.00 0.00
5( A) = 0 n = 0.3 0.00 0.00
s = 1.6 0.00 0.00
Tc (A) = 0.00 d = 0.5 0.00 0.00
Total A Comp "C"
L 1( B) = 0 Tc ( gu 2.55 0.17, 0.55
N(B) = 0
S(B) = 0 Tc( A+B 0.00
Q=C*I*A- 0.30
Tc (B) = 0.0
Tc( tot 5.00 Q( est = 20 . 50
Intensity 3.18
A = 8.25
WP = 33.0151
R = 0 . 2499
V = 2.48
Tc ( total Tc ( over land Tc ( gutter ) Tc( gu 2.55
Tc ( over 1 a nd Ct*( L 1*N/S~0 . 5)'~0 . 6) Q( est 20 . 50
Ct = 0.15 '
L1 = Length of Overland Flow Holding = 13.54
N= friction factor of overland flow (.4 for average grass cover )
S= average slope of overland flow
Tc ( gutter ) = Length ( ft . )/Velocity ( ft ./sec . )/60
B= Bottom width of gutter or ditch
Z1 = inverse of cross slope one of ditch
Z2 = inverse of cross slope two of ditch
. d= depth of flow in gutter (estimate, check estimate with 'Flow )
Area = d*B+d"'2/2*( Z1+Z2 )
Wetted per imeter = B*d+( 1/si n( atn( 1/Z1 ))+1/si n( atn( 1/Z2
Hydraulic Radius = R= Area/Wetted Perimeter
Ve 1 oc i ty = 1. 486/ n*R"'. 667*s"' .5
Flow = Velocity*Area
n = 0.016 for asphalt
s= longitudinal slope of gutter
Floor outf low = ( .36 "depth/hr . per sq.ft . f loor ) * (1 ft depth/12" ) * (1
= 0.00000833 cf s per sq. f t. of f 1 oor ar ea
OH-IRM- 2l15/88
• US Department of AgriculturE
Soil Conservation Service
DESIGN WORKSHEET
for
Trapezoidal Channel Section
prepared for
Hr-% fIR C> 31 IVG
Yl
SPOKANE COUNTY, WASHINGTON
Designer : JWP Checker
. Oate = 10/12/93 Date
BAS I N " q" &bdAk.-'E D\'T G 14
Slope = 0..0133 ft/ftJ Hydr Radius = 0.20
` n' value = 0.030 ~ Area = 0.55 sq.ft .
Capacity - 1.10 cfs
Velocity - 2.0 fps
- Sideslope - 3-0 -1 ,
Bottom width = 0_0 ft. DePth = 0.4 ft.
G~,~r D ~O ~ Gn.r~ D
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ON-IRM- 2/15/88
US Department of Agriculturi
Soil Conservation Service
. DESIGN WORKSHEET -
for
Trapezoidal Channel Section
prepared for
1-1 a!!:~b f-=: L7 7C m G
in
SPOKANE COUNTY, WASHINGTON Designer = JWP - Checker
Date = 10/05/93 Date
B A S I N " B" SrWAL-E D l 7 G N
i
Slope = 0.0160 ft/ft Hydr Radius = 0.12
` n' va 1 ue = 0.030z Ar ea = 0.20 sq. f t.
. Capacity = 0.31 cfs
Velocity = 1.6 fps
Sideslope = 3.0 :1 I~
Bottom width = 0.0 ft.
Depth = 0.3 ft.
S 140-4 0
o!~ cIr- U
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r•~
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OH-IRM- 2/15/88
US Department of AgriculturE
Soil Conservation Service
DESIGN WORKSHEET
for •
Circular Section prepared for
IH A FZ IQ ]C N G .
in
SPOKANE COUNTY, WASHINGTON
Designer = JWP Checker
Date : 10/12/93 Date
~**~~*****~~~~~~~~*~***~******~*~*~**~~*~~*~*****~*~**~:*~c*~**~~~~*~*~~
CULVERT @ TURN AROUND
Slope = 0.0133 ft/ft Hydr Radius = 0.25
` n' value = 0.024 Area = 0.39 sq. ft .
Capacity = 1.11 cfs
Velocity - 2.8 fps
Diameter = 12 -in. Depth of flow = 6.0 in.
A• eoan s
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OH-IRM- 2/15/88
US Department of AgriculturE
Soil Conservation Service
DESIGN WORKSHEET
f or
Culvert Evaluation
prepared for
H~FZ l7YNlC-ii
in SPOKANE COUNTY, WASHINGTON
Designer = JWP Checker
Date = 10/12/93 Date
CULVERT C TURN AROUND
`n' value = 0.024 Capacity = 2.8 cfs.
Length = 50 f t.
Diameter = 12 in. Inlet CONTROLS
Projecting groove edge
Elevation of headwater = 2.7
Elevation of inlet = 1.6
Elevation of tailwater = 1.5
Elevation of outlet = 1.0
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' : • ' •fy^~,• C~11~ i;' 5~..4 Y~'., , . i, ' ' .i~:~y~~~~~1,~ " , r~i' ~i~~~~"~Y''~.l'7 ~,~t~V.' 'Q] f:~'f:"'`i~,~r~..'~~ , •~i.h^ ~ , ~ iL rr . •ti~~ ~r,~ N ~~ya~' ~ . ,'J v H ft,y iJ~ .l'r ~ ~ . ~ ^1 ~ ' . ,~t,, .4' (V ~ .~;~iqr+'~J 4' ` ~,t . ~ , , o , . •N ~a ~
,n ~u~ ~A.~ t , : . J . ~ ~ ~it ~'~1TI~fJrv,44~ k ti'. 'j. O ':1 ~~r~ r „q~,t„~r,.,. 1V~ ' , 'r.~ l" -r~'` C; " d Y` ~w. . , Z 4'~. • .k•'~ ' S~ r ' ~~r~', ~ ~rv~~'~~;r'•~ tl:~~: ~P•/~ (Q1~~7,~r~D~~.1 ~1~: i`'}s,i a'.,t ~ ii~ . ~ ~4~ l~~i;;~~~1,~' '
~ y ' ~r ~ i''Li S . . r~ n ',r~. 1 ^..j4 ~ t • iti~~~r :~La'h,~, . J~~ ~ • • ':',i r '~,'aL~~ i!•.i1'i~ • ~ fy; ~ ~ ~~i G77 ~ 4rI , ( ~ I'' J',' ; L ,~t~ : ♦~j ti• .ri;,~f41 , ' L. :i IS J D ^ 4C~~ ~1 ~wa~~ t~'j~t~;, r, i'{~ f•,~ ~nr~y.' ' ~'-r ~ ~ O ~.~!'f f ~'t, • • ~
~ ~1 ~ ~ ~ r Iti/p~~1~A11 ' 1 .~,{`L' I 4'~ ~ li ~ I ^ ~•J''~ ~ 4 ~'M i~+' W ir ' ~ . .L• . ~~y~. ~ M *~l,j 1.~ . , ° ~ ~ I. ~ ,~~~li~; a~~, T~µ~,r % ~~iw~~a '~'i, ~,~,~C }r ~ ~ ~ 'd~~1
~ ~ «A6 ~ • ~ ,r,~~~ ;~~A.~ t . ~ ~ ~ ~i ; 'a~; ~N p. ~ ••d•Y. i/ 1 ti~ ~ i~;~~~} . r ' r ~ ' ~ ! ~ ~ 5.;," , ` . • ~~.,y. i `Y't~- a 1' s • „J' S . .
;~Z .i '~m`, ' 1~~', • , i ~ 4~ , ~ ~ , I.,~f ~ 1 ~ N ~~f! F~ni.~~,.~~~~ ~ ~S ~ ~ A ' ~ {!'~~fn 9;~'~~~~~ ~,ti (lrY'. 7T.•'. '~/1 }:(I'~f~i~ y~ U`. ~ i~ti%,jy; 'A • ~u? ~ ~ ,;i''~ ~a ~ ~,,2%.~.~ 1;~i'km"~'4 1 .t ~ ~~+~,ti}b,~'j ~'~1 .
4.'~{4tiy Y,. N 'II ''~f/ y + + 1.~`Sf~~,~ ~'{;1~: ~ ~h iW`I;' A~ ~P~'jr ' ~ 1 w ~ ~ I ~ ~ ~ 1~ n~ ti ~A~+1'6~~t ~~di~~l~~ '1~~~~J~) ~j~~}.' , 1 •iA,v~ i' . 1~~ D,~p~ ~~1 ' ~ ''IA..
4",' ~ y 1r ~ I+r ~ , ~J..!,!.~+d.l:2bit ~•.4 „ ~ F, X l ,tt,~. ~ '4 _ . . , •~,:r~~p~ r~1M.~.G- , r' II• _ ,My; _ : .r;~~~1i., %S::m „ ti ~ tiY '3: . I
~ f .KC; 4~,iYNy x ~'i:..i,~ ~it~."`iit;,;;'G!, II , %'pi0~ r.~~~.;~i.:' ~%",S•I'`'i~`t~yi'' t~~• , ~ 3 ~ ~i'`4~ ~1:. a W ~ ~'~t,~' , i\~'t.~ f . Il.n.. r , M".'!~ y ^ ,1•r~ ~ if •r~i~ . ~ ~~•Y ~r ~
i. k ' , • a~.~' ~ ~ i 1 .i(. . . W . •d.' , L1'. . ~ ~ _ ' ~ IL,.~....:~ _ , ~a;'t ~":~1? ' , ~r
t~ ~y ) N a{ I, 4 ; . ' ~ •r . '~~.i ~t' Iir... ~ .~+.~~+~V`'~ i , , ,
(~j•~ O'n A G~.n/ ,d~1` rt ~ ,ln~iy"; 1!`•',i'~.~.A,f~~ ' ~:~J .`~+.s ~,+~ii~. l1 rll '=r1i%~mv. ~".~i"w'~ n ` ~1'.) F~:... ~i11iC'~~ 'i ~ •'1 ; ~'+1~' 1'~ r) ~Nl; ~ ~ t~.gA x'. ^ _ .~':,',r .''•_----••__...__'y' - :'~:a~'-u- -
c) ~ ti~,•= ~ r . ~ u~w~,,(_~.~+~^ ~ ~;1 s'~?~. _ ~ ; =-t'`~=_ _ \ I 1 ~A" m' ..............7~ . , . . .p_ .•.i.;'.1~~___....-_ i~ - _.~r_..._._.. \ 1..~~l: , I..w./..:A'. ~~i•. 1 ~ . ...,.t. 1 . (Joins sliect 76~
~.-O•-
~.S SOIL St'sRN'ET
occupy rolling to llillv uplands. They formed in 1a~~ered tlie~• :~re esrellciiC places for huntin~ migr.itor~• N~-;iterfo,~-l.
loess wider coiiifei'Q117 forest. '']1C t11111Ua1 precil~it.Ltion is (C.ipability uiiiY, VZ11w-1; not in .l woocllaiid nai•oup oi• ~
:lbOllt 2~3) 111CI1CS? .illcl the frost-free se.t,son is tauout 125 d.iys. r.tinge site) '
I'reem:lii coils are iised for ;ralllI peas, clover, ;ilfalfa,
aiid ~ra~..lnd:~s ~~•oocll~l~~cl. Garfield Series Freeman silt loam, 5 to 20 percent slopes (FaB).-This
i.- tlie domin.int soil c,n Che silir uplan(l north and east of The G.lrfie]cl series eomsists of well•clrained. :evei•elY
Roel:foril. _llost slopt; .tre uJween S:lll(l IJ pereent; a, erodecl coils tli:lt furmecl in loez-s under gra=; and sinall
few Sm:ill areas 1~ave slopes of iiloi•e tlian 30 perceiit, and sliruUs. 1hese soils occupy riclgetops. l:iious, aiid t;ie up- .
soiiie of less than 5 perce»t. Slope; of inore th.lll 20 per- laver r slol)e3on rollingto lii113~ upl~lnd=. Tlie~- hn~-e tisurf~lce
ceiit :~re clioi•t and are ~Zloii~ tlie edges of the c1r.l111R`'0~1:ti~rs. of siltv cl.ly IO:llll :111C1 R SLlbSOil Ot silh- cl;iv tliat is
Iieprelseiitative pi•ofile :ver}• hard, sticl:y , 111C1 plRSt1C. T118 alUlll,ll pi•ec;piratioii
o to 7 fuclies, very ctark grasish-brown, frilulc sitt l01ni; is 18 to 22 iilches; antl the frost•-free seasoii is auout 141)
grannlar structure ; neutral. C1;1i's.
7 to 17 iuches, brown, friable silt laam, gracish brown at a 'I'lie-ce soil-s- itre ttsecl jnainly for ~r~in, ,llr:llf~~, aiiil nr~1-~.
cieptli of 12 inches; ueutrll. Garfield silty clay loam, 0 to 30 ercent slo 'es, Se
inyi~~li-bro~~•n, firni Glt lo..m th:~t bresl:s into , P p ~'Q1'2-
1 ~ co inclies. b ~ ~ ~
1- ro •~-incli nrtsms: iieutral. 1}- eroded (GcC3).-Tliis soil occupie~ tl~e ii.iri•o~~- ridYetol~~ ~
to 72 iuclies, clark-bron-n, srni siity clAy loani, atmost sitt allcl upper -zlopes on ]aessaI uplands in rhe son'rlie.lsrei•n •
1o1u1; breal:s itito prism3 1 t0 2'iilches wicle, :tutl tueu into p,lrt of the couilfy. AlOst SlOpes are between Sanil 20 pei'-
Zugrul:lr bloeks 1~, ilich to 1 iuch wicle; neutr.il. ' ,
ceilt; fe~%- s111~1 Il
''ll re:is h~l~-e slopes of nioi•e rhaii 0 l~el•cei~ r.
e surfaee soil, «lieii moiSt, rannes fT0111 i-ei•~- clark and iOllle 1111•i•o~~- ricl`etol~s hai-e slope~ of less t~iail 3 pei•-
~i•1~-i~li bi•oR ii to d~ii•]: bi•o~~•n iil color. Tlie fexture of t]ie cent. repre~e~it.lti~-e profile :
stibsoil raiiae, fi•oin lieax-v silt loam ro Siltv CIRZ' I0:1111. o to S i»cl7escl:~~•1:-Uro«~,, rirm siltr c1ar ioa~~~•-•;nuta
_Ls nlucli :~s i 1~erceiiL of"some areas collsiSts of Lnrliui, cure; iieuci~:~l. . ,~r~r srrt2c-
De.lryton, oi• z-evcrcli- erocle(l rreeiuau soils. S co 4-15 iuc>>e;, ctark-t,ro«-n, firm silts ctay, yeitowish-brown
T'liis is,1 moderarely ix-ell c1rained 'soil thlt h1s a reri► ~Atcy cl;►y lo:ini belo«• a deptli ot 23 iiiclies; t~re:z~;: i„co
prisuns 1 ineh to ? iueUes R-ide nnci tlien iuto au~ular L1or1.s
slo~~ lz- l~erilie~lble s11~)soil alid is satiir.lfeCl f0i• sIiorC. l~eriocls 11 to l; iiiclz tiiicli; clas fi~s coat tlie prisms nna a»gula:•
in spi•inz. It holclti a>>Ollt JtO 7 111CI1@s of wnter tl.at plants t;tock= : llE'Llil•nl.
cnii uze. It is eRSi• to Nvorl: except wlleii saturated. Roots 4s tu Go i,iclie-z rel lon•ish -brow ii, srui heavysilt toam: breaks .
l~eneti•ate The lo«er 1:1~-e~:~ maiiil~- ~lo~ln ped f:~ce~. The Into F~risuis 1 to ? iuct~es x~•icle ancl theii into an~~lar t,loc~;,
fertility is nieditlm. ~urface runo$' is nieditun, a2ic1 tlie to iiicti tbick; neutrat.
h.lzard of ero;zion is mocler.lte. ' The texrure of fhe tippei' SL1bSOi1 iss silfv clny or cl.l1-. :l-z -
~Iore th.vl 95 percellc of tlie acre:~ze is cultix-atecl; the 1111iCI1 ~13 lO l~ercen~ of some 1i•e~s con~i~t~ of ~then~. 1.Zt~. -
rest i; fnriil ~N-oocllot~. ~~"lleat i; tlie cii:ef c~1sli crol~. It ~e2 Perce. or I'~Z~nllse soil~. '
Is `10ivll lll 1'OtFlt10]1 Nx-ith pea; ~illCl :1 ~1'eell-lll!'111i11't? CI'Oj) This ~oil is icell di',lvled :lll(i slo~rl~' 1)el'lll~'iZ~J]~. TC 110~C1~
or iil 1«-he~1't-tnllo«- rorliioil. Otlier ci•c1~= gro~rn .lre peRs 9 0~• 1~) iilcl~e~ o~ ~rater t~li.l~ l~~:lllf5 c~ui u:e. ~I~ i~ =ticlc~• ;
.~iid barle~-: clox-er or cil#~Zlf~, for ]i~1~- cr `•reeii mnnure; 1nd ~lllcl p]~z~ilC n•lie~i ~~et; coi~~e~lue~itl~•, it c~ii 1~~ c~z~~i~-;ice~1
`l'tl=i fO1' zeecl. Il,ll'; O1' 1?;lsLlll'e. _~l rl'tll;l :Ul;i ~~'1'.1s? CTOPS nIljt' ~1'1[l1111 ,1 T,lill'T 1].ll'T4N1' 1'~I11~C 0f I1101~`111'e t_oiitenr.
ie~l>";nd r.o n;n•o~•en. I~~;"llU1E'a re~pond ru ~ult~i~•. 1'Cap~l- roo't~ l~enerrarion i, ~-er~- deel~. ''he fercilirl• i~~edit!~-►i.
1J1l1i~" 11211C IIIe-~: ~COOill:ll2Cl `'1'Olll) J; il~i 111 .l 1'~111~'e ~IIQ~ ~'lll'f21C@ 1'llllOf~ 1; 1't11)lCl, .111C1 tI1C l11Z.IC(1 Of tFli'f~ll1' e1'r)~?CI?
I~ i•eeman silt loam, 5 to 20 percent slopes, severely 1; =e~-ere.
eroded (Fcs31.-llore tl.ai2 50 percent of tlie clil•f.lce lani-er ~Iore tlin~l l~ercent~ of the ~crea~e is culrir-<<reil : tlie
of tlii~ zoil hnz bee~l re~no~-ed b3- ero-ion. r'ei•tilit~- i~ ie- 1'est i; Seedecl to a1f.1lf1 Or zi.iss. Ij'lieat i; the cliief Crol).
clitun co lo«-. Surf.lce i'11110~' i; rRpid, .Zllil i~1Q ~l.ir~ird of Otller crops _rotirn are b~irle3~ ancl dc~- field pe~1=. .~ll '
ero=ion is ze~-ere. _Ls 1]111CI1 as 10 percent. of so~iie .lce~ls cropa respo~icl to nitro~en, sulftii•, and plie~l~lloru=. ~ C.t- ~
can~iscs of unerodecl F reem:111$Olls. pability. wiit IVe--3 : not in a. n-oodland jroup or raiize z:ire,'t
" Tlle z-aille crops 1re arown Rs on Fi•eemaii g-zi] f loani. 0, to
20 pei•cent slopes, lnlt vielcls nre lower. ( Capabilicy'tuiit ~Xal'riSOtt sel'1eS i IVe-*");woocU.liid (yroup 5: IIQt lll R 1•aiiae sice) The Garri=on serie; is mRde up of somewliat escez-ively
I'reeman silt loam, 20 to 30 percent slopes, severely drauied, ~r:~~-e111- or stoni- soil;tlint formed L111C1eL• a~•:~~_
eroded (FcC3).-llore tl~~1n 30 ~~ercent of the surface l~.Ser in ~-~I1Cl:l1 OL1tiTasI1 m11CCl*in the ti >>er art ~rith rolc~unic
of tlli5 soil lla; been reii~o~-ecl b~- erosioii. Surf.lce i•uno$ 11 P
is rapicl; a-nd t.he erosion hnzarcl is sevpre. Included in ash. TlieQe coil; 1re on ne.lrly ]e~-el to nloderatel~- ~teep nlappula were a, few areaS of Dear3Tton soils. - terraces. The aivitiRl precipitation is 18 to ?9 iiiclieS. ~iiicl '
Tlie sarne crops are grown as oii Free2il~zn silt lotUll, 5 the frost-free season is abotit 1 r 0 c~:~3~s. ~
to 20 percent slopes, but ~-ielcls are loR-er. Ca ribilit Soila of the Garrison ~eries are usecl foi• ~-~i•ief~- o~
, ~ ~ 1 crops and as fiZT1115te:1C~5 111C1 SL1~JL1I)J~111 IOts. ~
uiiit I,~ e-~; n oocUand ~roup 5; not in innge site) Garrison gravelly Ioam, 0 to 5 percent slopes (GoA;.-'
-This i; t•IlE C10111111111t SOll lll th@ Sl)0kane Valley eazt of
Fresh Watei• MarSh tlle cit3- of Spol;ane. llo5t slopes Rre between'3 and 5
Fresh water marsli (Fm) consists of sliallo«,, swampy percent. Iiepresentntive Profile:
poncis and of frin~es around ]akes Gllat hare fluctu~ltUlt,~', o to xs inches, v11ck, ~-ert~ fri;tble ornrelly loam ; grauular
~r:~ter le~-e]. The ti ebetation consists of tules, reecls, and struciure; siigi~tt,r ;~cic~.
~ 15 to 4=: inches, d:irk-Uro~-n, friable ~•err gr;tcellr loam ; neutral.
rushes. 7'lie~e areas are of little value for ;rnzin~, but ~ to co iuches IllU1t1COl0YCtI S21J1(I, ~nvei, 1vc~ cot,blestones. i
. ;
I
13 - 3
,~,-~A 22 i 5 a~ SPOIt.A-NE COli \ TI') WASHI\ GTO\ ] 9
1'he SllTface color, Wlien moist. ranye.3 from verv d:u•l; tlio county. MoSt slopes arQ betweeii Gaiid 15 percent.
Uro«n to blacl;. '1'he texture of tlic surface laver ia ar.tiv- Ticpresentativo profile :
c11.y or very ~r.i~-ell~- lo:llll OL' SIIt lO:illl. ''l~c sub,oil r:L11~CS o to 13 inc~►es, ~,iac~:t verr tri:~t,le siit loam • s••
~~uuiar struCtarc:;
in color fronl d~irl, bro~~-n to ~ ~~ello~~-i_li bro~~n. Cl:~y .ind neutral. '
liiuc li.lveaCClillllllilf'Cd Oll th0bottom o# the pebbles iii the 13 to 62 inches. Qlrk-Urown, tir,ii loam tli.lt Lrcaks iuto prisms
lo~~-er suUsoil. ''lie dept~li to the arai-el substrntuin r:~n,es ~l to inclies ~~-ifle; sli~t~tt~• nci~t.
G: to 72 d1rk-Lruwn, friable lO:llll ; c11gLtls acid.
f rom ~~0 co 55 inches. _Ls niucli as 10 percent of -zome 1rea s
consists of Boil~ or I']ioel>e soils or of otlier Gai•i•iso~i ~ils. I~~ pl.lces the sui•f.1ce l.lyer is i-err d1r1: bron-ii. It is 10
~~hU3 COll 1$ SO111Q\1'll:it excessii-elv d►'1111@d :lllCl I1:lS 1110C1- tn 16 111Cl1e5 tI1lC1C. Zhe iC'Sfille Ot CI1C Sl1bs011 T:lllat's fl'Oll1
erately rapid pernie.lUilit3-. It liolcls .lbOllt 3 inches of silc ]oam to liaht :ilty cl.lr lo.uu. F i'Olll 5 CO 2) 1)ercent of
w,lter t.liat p11nts c~1ii use. It is ensy to -%rork. Roots t.lie loNrer subsoil is'composed of gi•avel and _roiies. As
peneEi-ite to the 11yer of sand, gravel, Rnd cobUle~tones. lilltch a; 5 percent of some areas consista of I3ernhill,
''lie fertilit~- is illediuin. Surface riuiotl is slo~~ ; 1ilcl the Dear~-ton, or Larbiii soils.
h~lzard of eroz-ion is sli~ht. This soil ia ell dr,lined and niocler:~te13~ perme:~ble. It
_Lbout SO perceiit~ of flie acreaze i; cu]tii-ated; the rest is liolds J to 11 inclie_ of i~-ater th,it plaiits c:1n u-e. It is
llced for zraziil~, and :~s farni-fead; or sL1UtlYb:tll lots. easv. to worl.. root penetrRtioji is very- dee1~. Tlie fer-
~Ioct of tlie :~ci•e~~•e i; irri~nted. Irri~~ted are1; are u;ed tili't~~- is liiali. ,~tirt.lce i't1110Y~ 1s 111eClltilll, :illcl clie ]iaz~lyd
fO1' 02'Cllal'Cl f1'111tS .111C1 be1'11C5, C.lbU1~2, COTll. C:tllf:t10i11~, Of Cl'0s1011 IS lllOClel'~lte.
cucumberS, cele~•~-, aiid squa;h; R-lieat, oat,. :iiici b.zrlev; More than 90 pereeiit of the. acreaze is cul'rii-.Ztecl; the
a lf.ilf~l for h~1~-: a~id zi•:~~s for seed aiidp.tsTtii•e. Dr~-lniicl lesi i; ~r.~zecl. 11-1ie.1t i; the cliief crol~. It is ~ronn in
~lreas are ii=ecl tor ~~7ie~lt; ~11•le~•, :111C1 11Rt1~'E Ut1llClly'r.l~~. rorRt•ion n-ith blrlev, o~~ts, pe1s, leiitils, alf~llf.l, or nr1ss.
TIlEi'e 1s l10 Cll1CLlltv lll the lls@ of macliinerv: ~~tlt t110 A11 zTi1~S :111C1 '1':1111 C101)S TCS]~Ol]C~ t0 111t10a'ell: Ie~11211eS
zr~1~-el i; h:~z•d on till~l_e iml~lenients. _~I1 crops excel~t i'esponcl to sulfiir. (:Clpnbilit3 unit IIIe-? :lo.lm~- ran~e
leatlmes re,poild to ilitroyeii. Souie crops re~po~~cl to site; iiot in ti R-oodl.liid aroup) , ~
~11lfllr; boron; and lpho;phorus. i C:~p.lbllli\' 11t11L IIIS-2; Glenrose silt loam, 0 to 5 percent slopes (GpA).-This
L01111~ 2'Rll~e zire : not. in jroocll~lIICl nTOll~)~ SOll 11i1a stlrface lacer ? to 4 incliea tI11C~:21 than rl~at of
Gai•rison sravelly loam, 5 fo ?0 percent slopes (GaB).- Glenrose silt loaii1. 5'to 20 percent slopeS. Snrfclce runoff
This Soil h.l_~z cti -zurf.lce lat•er 37 to 5 inches tliiniier than rhat is "low; and the ero-ion haz.lyd i; elinliG. Includecl in map-
of Garrison nrarelly 10.1111; 0 to 3 percent slopes. Ruuoff pin= were small are.ls of Ij-llliy ancl De1ryton soilS.
is mecliwn. and the ei•o_zzioii Iiaz,lyd ismoderlte. Tlle same cropz-, :Zre crroATii Itis on Glenrose silt loam. 3
Tlii; roil is u.ed iii niucli the =ame: irai .is G:irri-zon fo 20 percent slopes: in Rddition, vezetables are aro~-n.
gr,ti-elly lo:llll, 0 ro 5 1>ercent slopes. (Cap:Ib111iT' tuiit. (CapRbilit_r uiut IIe-?; Loamy railge site; not in a1yood-
M -3:Lo.llllr r:~n~e site; not in ~ lroodl.Ind ~roiip) l~lncl ~roup)
Garrison ~•er~~ ~ra~-elly loam, 0 to S pez•cenf slopes Glenrose silt loam, 20 to 30 percent slopes (C-C).-Z`l~is
(GmB).-Tllic Soil h1s tlliiuler, inore nrarell~- =ui•face la~-er soil lias surf.lce 1,11-er 3 to ~ iiiches tliiniier th~zn cl~at. of
r)ian G:11•ri=on _r~l~'el1~' IO:llll, 0 to 5 perceni zlope" :111C1 GlenroSe silt lo~llll. to 20 pei•cent- slope-s. Surf.lce ruiioff
llOlCls leSd iil;lll J lllrlle~ Of m'.1LeT Cllclt pl.llliS C.111 11zE'. TI1C 1` 1'11)1C1; and tlie ei'osi011 hR7_al'Cl 1S sE'vtl'E. _LbOllt• 3pC1'Cellt
rrI•;1ve1 c:ltlze:-- extre»>e Nveai• oil cilla_e lll,lcllinei•v. As of soilie ai•eas consisrs of Beriiliili and Dearvtoli =ni1:.
11111~:11 ;la 7 l~~~r~_e~lt of zoiiie areas con_izrs af otliei• G.ii•rizoll ~111e c.1me crops :ZZ•e nroivn as on Gleiiro,e ~ilr lo~zm, to
~Q113. ~ ~;1 ~►;1~)111C~' 1i111G I~''e-~ ; ~ ~lallo~~ 1'111~'~ ~1Lt' : I10t 2~~ 1~e1'Cellf• slopes. ~~lli lllOre of the :~c~'@:1~?'e 1s lll `rl':1cs :ll1Cl
IR tl wOQ(ll;lilCl "r1'Otll)) le`''llllles. (Cil)).1b?firy unit IZIe-?; I.&alll\' Ta11g0 slte;
Garrison very- stony Ioam, 0 fo 20 pereent slopes ilot in a wooclland ai'Olll)) ~
iGn$1 -`rlli~ soil llolds le~s t1~nn 5 inclie~ of «ater tl~~t Glenrose silt loam, 30 to 55 percent slopes (CpDi.-Tliis
pl:•- c,iii u=e. and ic is too Stons to be culriv,Zred. _Ls soil hns a surflce lati-er 3 to 5 iiiches thinner th.1n Th2t of
•~ch as 15 percent. of 14zon1e areas consists of other GiZrrison Glenrose silc loani. .5, co 20 percent slopes. Surface rtui-
i]s, ;~nd as niucli n; 2 percent is nlade ul~ of er~lnite o$' is ~~Zpid, ~nd tl~e erosion haza.rd is se~-ere. _~bottt ~
' outcrops. ` percent of some areas consists of Bernllill or Dearrton
Thi: soil i; n=ec1 foi• nr.l%lller. (Capslblllfr llllli. VIs-`?; soils. This soil izz n-zed oiily for grnzinyr. (Calrlbilitg '
Sha.llow r,llln-c ziitc: no'c in ti-woodl,uid nroup) tillit VIe-1; \oith Exposure rancre site; not in awood-
Illll (l y 1'Oll P)
Gleiu•OSe Se~'1eS Glenrose gravelly silt loam, 5 to 20 percent slol~es
(Gr8).-Tliis soil llolilz- froiu 7 to 9 inclies of waiei• tliat
Tlie Gleiiroz-e series consists of well-clraiilecl, nlozztly planta C111 t1SQ. S~iiiall areas of Beizlliill 1iic1 DeRryton
llleCllillll-t('\Clll•ed sOlla. TheSO SO1l5 f01•mecl un(ler `1'a cs soils were ineluded iil map
iper T]iis soil is used iii mucll the sanle wa3T as Glenrose silt
ancl sc:lttered pine trees in glacial till mixed in ille tp
t).lrt ~~-itli loezs ;~ncl i-olcclnic asb. _llanS are:l~ are gra~-e113T lo:~m, 5 to 20 percenc. slopes, but ~-ields are le~. (Cap~,-
or stoiiv. Tllczc soils ai•e nearly level to vei-r steep. The Uilitti- unit Ire-4: Loamy T111cr@ s1fE ~ llOt 1l1 a NrOOClI:1I1d
tlllllll:llVprecipit.ltion is about 2)1 iilclie-z, and . the frost-free (r1'ollP) : se.lSO]l 1S 1~JOtlt 135 Cl~l~-s. . Glenrose gi-avellti silt loam, 20 to 55 percent slopes
Glenrose soils are used for graiii. peas; leiitils; i-ecyetlbles, (GrD).-Tliis soil llolils i fio J iilc]ies of iriirer tliRt plants
.l.lfalf.l, and crra-s, aild for ~r;lzin~. c;~n use. SurfRCe runoiT is r~,pid, :~ncl the erosion h:lz.ud
Glenrose silt loam, 5 to 20 pei•cent sIopes (GpB).-Tliis is ser•ere. Iiiclucled in mlprin~ Nvere arels of Beriihill
SOIl OCCIII'i 4ll `l:iClareCl lll)Ia11C1s 111 il1C C:lst-CEllil':ll 1).11t Of Slltl0:b111,3O tO5J pel'Cellt sIOl)CS.
92 aOIL SiiR1'ET .
1`Anr.E 7.-I,ztcrpretatzon n/' cnqi~~.eeiin~!J
•
~ Suitability ;LS sourcc o[- ~ Soil fcltures a(Tccting
. s . .
' So:! or t rPO; rnrni ponds
;111C1 Ill;lp Sx'111b01: • { i a
Top-zoil 1 sand, Gravcl 1 l,u:td fill ~ Iiigliway Iocatio►i Dikes oc• ]ex•cca ~ .
c ,
RC'SCl'vO1P 11'CiL ~
r
(
Draguon (DrC, ~ Good fo j\ot suif- \Fot suit- Fair to ~AIoderaie to very lzigt?• Lori- st^bility; lloderate tu '
DsC, Os D, E poor. able. ablc. good. ~ snsceptibilitl- to semipervious to iuodcratel}7 (
DvD). I ' frost iction;,mod- impcrviotis ~ rapicl pcrine- ~
~ erste to moacratclv when com- ( abiiitV, r '
rar,id permc:ibilitz-; pzcied; loxr to ~ i
~ - loxr to moderate moderate . shrink-swell shrink-cwell I ~
~ potenti.il. mtcntial. ~ i
t ; _ ry 1 ! •
Eioika (Ek6, EIC, Ot SUlt- 1iIIt:ib1,^ st Good_____ 'Moderntc to Iiigli sits- I.ow stalwilifr: i 1•Iodcratetorerrj
E I D). a b le. ~ de~~ t li cc~;~ ti l;i ii t~- to frost se»iii;er~-ioui io ; rapid perme- ~
(,reater 1 sc:;on; nioe-er.zte to impervioiis " :tbilitv.
tl:ai: GO j vtr}- r:lpid perme- AN-hen cocup;3ci- ~
. ~ inchrs. ~ abiiiir; lo~r to niec'.- Cd; loiti• io ~l~p~'-
~~r:ite~=i!ri»k-swtll cratc -1:riiil:- ~ ~ .
pecenri:l. swcll I:oteiitial.. ~ i
i ~
Lmclent :i!c lo:tii) ~ 1 air____ 1ot sttitz- -Not sui't:i- P~
~or_____R Ver~~ l~i~t: stizceptibil- Lo~~- sr;~biiit~•; lf::- Jiodei•are io
(En,). . ; ble. ble. ; ity to tro-,t action;
pervious when modci•:lteiy
• ~ nior?eratz to niod- compirtecf: low slo«- pcrcr.c-
;
; er.►telly slocc pernie- to moderate ahilicv.
I ~ abilit~-; lon• to moc:- shrinh=;ne11
, erate slirinl:-swell potential.
` poteiitial; snt»r:iter _ I
! ici winter aud spritfg. ~
Freeman (FaB, Fair to j\ot suit•a-~ \Ct suita- Fuor_____ Mloc?eraie io verr li;gli lloc':er;lte stai3il- Moderlielt- slow
Fa83, FGC3). ~ poor, i ble. Wr. Stisceptibility to ity; impei•vious to A-er~- ;lo~r
; I frost ;lction; moc?er- m-hcii cempact- permenbiliti-.
, i arell- :low to verv
ed; low to inoci- ~ j
~ =10w= permcabili'ty; era[c sl:rink- ~
low to moderate S~Cll putentia:;. ~
=hrink-;well pctei:- soi1s cr.tcl: wl:c<< -
ti:ll; ~:ituratecl in cirr.
Garfielci (GaC3) Fair to \ot suita- \jot suita- Poor_____ \:o ;er:lte to verr high \-Ioderate stabi!- AIoclerate to
good. ble. ble. susccptihitit.v to fres't itr; icnpen-iaus :lon- perme- ~
action; moderate to n•lien compact- anilit}•. ~
;lou- perraeability; ed; moderate to
. moderate to liia}i high cluink-
shrink-swell puten- swe]i potential.
ti:ti.
Garris(D GoA.1 Fair_ \7ot suit- Good below Eccellent_ Sliaht to no susccp"ti- lloderate stabil- \Ioderafe to ~
Gg B,~m C, 1ble. surfacc bilitv TO frOSt ACLi011 • i• v' ~ , t~~, pcr coii., i-ery ragid
Gn6). lzyer. nio<lcrate to rcry n-]ien com- permeabilit•y•
rapid permcaUilitv; pactcd; lon
low slirink-swcll shrink-s«•cll ~
. potent•ial, potential. ,
' i
i
See footnote at end of table. ~ . I
t ~
.w . .
fiP0I:A\1: COII\TI', WASHINGTOV 93
1,rnprrlic-.~ of $oil.•-Continuecl
i
Suil fcalnres a(i'rctin~ Continucd
, .
E , . , .
i Parm ponci;-
Continued ! a-riculbir:il Tcrr:ices znci Scwagc tlisposal o
dr;iina-ge ~ L•rig1i1011 dix-crsions Watcrways licld; ! Ti•a(ticabilkti•
~ Emb;uikmcnt i ~ -
Vcrr low shear i\Ioclcrate to \Iaderate in- Low rcsist;unce Lo«- resi;5tauce to 'Moclerate t-o Vcrr low sf:ear
strrii-tli; semi- niodrratelr fakc rate; to erosion; crosion: mod- motic.~r;ttelr strenrth: lon
. pcc•vioiis to im- rapid perme- moder.itc mocler;lte co erate w;ttcr- rapi(I pcrmc- ; lo:id-r;irr:•;n?
pcrviotis ivlicn a:)ilih-. w:Ytcr-lioldin? 1110dcrntclr ]iol(lin., rapar- abilitv: mcd- I c:ip:ici*4 V:
coiiiiractc:d: tne- c:ip:icit-y. rapid pernle- itv: ve+,etation era;e ,o ».o(;- + 11113CICC:lte
' dimii compresz- ; ~ ahilitr, d'iflicitlt• te eratclx• rapid f modera;e=y
ibili;y: lo«- csfll:li:~h excur,t -tra te r-~ieldin~, ' rapid i:e::ne-
s:t;thilitV. • on Dr;iaoon clpacity. ~ abilitv.
~ - • silt
Loir sliear strengtli; j_llodPt':liC tO _l[odcr;ltc to _llodcrate i•esist- _lluder:lte resist- 'Modera'te to ~ Low shear
selniperviou-s to N•rrv rapid mOderaiely anCC to Cro- lncc fo crozion; very rapid ~ sil'Cil-t}]: mnod-
1lllj)(1'\'101u- wlicii permc:iuilitr. rapid intake sion; niodcr- moderlic watcr- pei•nie:lbili[i-; I erntc to higz
~ `co1np:tctcr.l; r.ltc; inodr-r- ;itc to \-er~- holdin`_ c:l- I170CIC'1';ttc lo:1d-c:iz•i•:-:!1,
, com~~rc•~~ibiii~r: . :lte ~~•:it~~r- i•:ipi~l p~-~riiie- p:icit~-: ~-c~~eta- ~r:ltci•-liolclin- ~ cap:leit~-; ~„ad_
~ loNr ;t1bilit\-. ~ lioldin- c1- ;ZbiliGy. ~ tion cl'ifrcUlc to ca p:iciry.• j. erate to i--*r
r
~ ` acit~•. cst.~bli,:h csre ~t ~ , '
1 . ~ ~ ~ ; rapid pe..
oii L- loina ;ilc
j : lo:tm. • .
~
~ i .
! 1'erw luw she:lr ~ 1loclerate to E AIoder;ue to -Modrraie rc,ist- j\Ioderaie re,ist- ;-Moder:lte to ~\"cr%• low -~~:::i•
=t•rCngtli; imper- ~ moder:itelc ! modcr:ltcly ance to cro- ~ aiicc to ero-zio»; j iuoclei•atel\- E .ti•en-cli: rnod.
~ viou.i wlien coui- , slo«' pecnie- ~ ston- int:tke zioli; n;oder- j reri- high n•:itcr-~ slon•pennN ; er.tte to low •
~ pacted; moder.lie ability;s:ztu- ~ rau, vecx• ate to mod;r- ! holclin- c:tp:lc- nl:iiity; vcr3- ; load-carr•: ine
to higli compi•e-zs- i•atcci il1 'Witi- hi;h water- 1tr1v :low I it\-; cxcrpt for ' }v*htcc•-hold-; c:ipacit}-; :~~od-
? il~i!it%•• modei•Ztc ter ;ti~~l holdin~* ca- peruic:tbilit.~•.. s11t-tolci•;ilit
~ ~ ~ ; ii~ c:il~~cit~-; Fr:ite to i~:oc2.
~ st:il~ilic\-; crac;_ sprin,. pacit~-. , species, ~-i~r-ta- ' :~at111*:1teci in ~ erateh• ;k-•a-
~ wlieii clr\-, tiou difficult to I wiilter :iiid . pei•mc:~b:Ii:t-.
estnbli:ti. . spriii;. ~
i ~ .
~\-er\- lot,: slie:li• ~_l[ocle►•:itclr '_lloderately lloclcratc resiSt-. ltode!•aie rcsist- ~ 1Iodct:Ztc-1v ~ N'erv low h-ctt•
strcw`th; 1i11pri•- ~ slu, to ver~- 1 slu%r to _lo~~' :~ncr to cro• lnce fio c•roiioi~; ; slo«' to rei•~- ~ -ti•cn;tn:_::od-
! ~•iott~ ~~'lieli com- slo«' pcrn~,- ! intlke r:tte: siuu; iuo~l~~r- ~ rci•~• hi`_ti «•:~tei•- -1011' pei•me- ; ci:~te 1o:?f*
~ j~:~cter]; iite(liiiin ! tl~ili't sa:i: ; ~•r_rr his~li ~ ar!•h• :low 14) ' holdin, eapctc- abiliti•: VcrV . c:11*11VinLf U.:.
cotl1pi•e=sibilitv: i r:ited~iti ; w;itc•r-holclii?:~ Vi111• slo«- pec-! itv• ve-etirioii ` liiLfli r,atei•- . 1~•►cit~-~ i•:.;~}-
' »>ode~•a[c sc:tbil- i :pi•iu~,. ~ c:~p:lcit~•. it~ec~l~ilie.~. ' f:~irlN- e:l to ~ holt?i~~t, c:z- ~ (r:tCt"lr to
' ir\• -oils cr::ck ' c:t:ibli ` .
~ : ~ ~h. ~ pacitY : s.ZCii- very slo-N%.
~~-licn i;~tetl iii . pcriucal)?1;:J-.
~ i :pl•ing. ~
, . .
' N"erv low shrclr -Moderate to Slow intnke _llodcr:ite resist- _lIocierate re;ist- ! Moderlce to I I"erv lu«- ~h.:-ar
stren-th; iinper- sloa- perme- r:►te; very :1uce to cr0- nnCe io crosiou; slow perme• strcui;th; *_nod-
Viott:~ When com- nbilii•v. hinh i~-atcr• sion; nioder- ~•crr hi~h abilit~'; ~•er~- erlte lo:~d-
~r.~ctecl: medium to ~ holclin- ca- :~te to slo~~- ~~-ater-holding l~i~h ~~•Zter- c1rr~-in` c: -
high compi•c~~il~il- p:tcitr. pcrmcah,ility. capacity; t hol(ling ca- plcity; n?od.
itv; 1110CIeI':1[e t•(aCi:tiion • 1):1CiCN'.
, erltc to ~i~~:~•
stnbility; soil fairly FZ;y to ~ pcr►nc:lbilit~•.
~ crac{:s -~•hen dr%•. , estlbli;h. '
~ E I-IiSli slie:trst rengtli; ltoclei•:tie to Rctpid iiit:ike _lIoclerate rezist- 1loderate resist- _liodei•ate to ~ Higli slie:tr
P- pcrvious when very rapid r:tite; moder- suce to cra ancc to erosion; vcry rapid strength;'ui~h
~ compacted; sliglit perincabilitr. ate to low• sion; inoder- moderate to lo~~- permeabilit~•; loacl-clrn-ing
compressibilitr; w;lfer-liolding ate to verr u-ater-liolding moderate tA cnpacity;
moderste st1- capacity. rapid periiie- capacit•y; rege- low «-Zter- moderate to
bilitr. lbilit.\-. t.atioii dif~'icult holding ca- t•erv rapid
. f0 eSSt:IbIISh 011 pacity, permeabilit~-.
~'ery ston~= loa~n, '
• f.iirl~- e.nsyon
otlici• soils.
SUBMITTAL CHECKLIST
PROJECT #
REVIEW # I
REVIEWER : G • 2~ic,r)
DATE : 2-9--S-e~effib,&r 9 3
. 2Z
PROJECT : S~ ~~5 - ~.~~,i ~ ~y4N►t~ ~ ~'S • .
PROJECT S PONSOR :~o~T~-LL`~ TEL # al -355-7
PROJECT ENGINEER (Road & Drainage Plans) ~444,~j- _~,►-n
TEL # A(0q- ( 5~50
PROJECT SURVEYOR (Plat) t~~a~v~,r~r,czt=_ '~.~~Z.v~.~lza►~'~,
TE L # '`~i 24 - q74P-,
GENER.AL ITEMS
YES NO N/A
1. The $100.00 fee for plat review has been paid to
Spokane County for this submittal
2. An agreement to pay fees has been submitted
Development Engineering Services
.
~
3. The fee agreement has been signed by the roject
owner or a principal of the developer's firm. If
signed by an agent of the owner, written
authorization from the owner is attached to the
fee agreement
✓ 4. Review fee account is current (no invoices over
30 days outstanding)
~ 5. I have noted the plans in, plans out dates on the
pink sheet in the file
✓ 6. -If the project is a mobile home park, were the
plans reviewed by Planning?
7. 2 copies of the plans were submitted
i
8. 2 copies of the calculations were submitted
9. The plans are on 24" x 36" sheets
GENERAL ITEMS ( Cont' d)
✓ 10. The calculations are bound together
~E ✓ 11. The plans and calculations are stamped and signed
by a Professional Engineer
12. The developer has signed and approved the road
and drainage plans
13. Are there any conflicts between the proposed
' drainfields and any drainage ditches on the plat
14. Bowstring calculations by developer are in the
f ile for this review.
✓ 15. Vertical curve stopping sight distance
calculations by developer are in file for this
review
vl 16. Horizontal & vertical alignment sight distance
calculations by developer are in file for this
review
~ 17. The engineer/developer has provided evidence of
coordination with the electric utility servicing
_ the project
~ 18a. The file contains a Spokane County Section Map
18b. The file contains a Spokane County Assessors's
Map
~ 18c. The f ile contains an aerial photo of the proposed
project area
✓ 18d. The file contains a corrected preliminary of the
final plat map
✓ 19. The project is located in urban boundary area
✓ 20. The project is located in the Aquifer Sensitive
Area
21. The project plan name matches the plat name
22. Is the entire project located outside of an
i identified Flood Plain Area?
i
i
23. Is the entire project is located outside of an
i
~ identified Stormwater Management Problem Area?
i
2
cklistv3.0/Aug93
GENER.AL ITEMS ( cont' d)
✓ 24. List any design deviation requests and their
status:
25. Locate the Findings and Order for the proj ect and
list any unusual conditions:
~
• ~r~ . 5 t~ o ~u Pwa-c~-f►~ ,
► •
-A- c::~
' 12 . I, C~ • ~ C t2 P~ GI
~ v -
n= T-AvF- . . C-
5~-►~~~~ n~, 2 _ . ~o T .
r.AA D~.~_'o?,~ ,
23. Backcheck of previous comments completed
24. Al1 previous comments adequately addressed
3
ck1i3tv3.0/Aug93
FIELD REVIEW
1. Field investigation trip made on
2. Report completed and put into file on
3. Are there any existing utilities on the project
site? (Overhead power, fire hydrants, etc.) If
yes, describe.
4. Are the drainage basins on the ground the same as
those that are presented in the drainage report?
5. Are there any drainage channels directed toward
property?
6. Are there any drainage channels directing water
through the property?
7. Do County roads cut off drainage as per drainage
calculations?
8. If there are culverts under county roads, does
_ the flow go away f rom or toward the project?
9. What kind of ground cover exists?
10. Describe any existing channel conditions:
11. Describe channel cross section:
12. Existing Curb Type:
4
ck1iotv3.0/Aug93
ROAD PLANS
1. List any roads that must be designed and
constructed on the project.
RpAD REQ`D WIDTH DESIGN MIN./MAX. STOPPING SZGHT MIN. CURVE
NAME CLASS. PAVED R/W TERRAIN SPEED GRADE DISTANCE HORIZ. VERT.
. ~
~-cN Rrr _ t a~F o . F~42 , n
✓ 2. Planning conditions require submission of a
landscape plan. (NOTE: Usually associated with
PUD' s )
3. I have checked the landscape plan against the
road and storm drainage design and there are the
following conflicts:
~ 4. The following road plans have a bearing on the
design of roads for this proj ect and a copy is in
the f ile :
5. I have sent an "R" value and percolation test
request to the Construction Section with soils
information and a layout of the project. "R"
value test request to Designer
(date).
ck1iotv3.0/Aug93 5
ROAD PLANS ( cont' d)
~ V/ 6. Is the bench mark shown on the plans?
7. Are stationing equations shown?
✓ 8. Is stationing correct (south to north, west to
east, reading left to right on the plan)?
9. Are existing utilities shown on the plans (or an
information copy of the utility plans submitted) ?
~ ✓ 10. Are proposed utilities shown on the plans (or an
' information copy of the utility plans submitted) ?
~ ✓ 11. Does the note "Any conflicting utilities shall be
relocated prior to construction of roads or
drainage facilities." appear on the plans?
12. STREET WIDENING
12a. Are curb design sheets provided for widening of
existing streets?
12b. Does the curb design conform to Spokane County
Standards of section cross slope (Between 2% and
4.5a)?
12c. Is there a street cross section shown for
widening existing streets?
12d. Does the proposed new width match the width
required in the Findings and Order?
12e. The cross-section shows:
existing R/W
proposed R/W
future setaside
12f. 100' (min.) pavement taper into project is shown
(1) There is adequate R/W for the taper to extend
from the new paving width to existing pavement.
(2) There is inadequate R/W for the taper to
extend from the new paving width to existing
pavement; taper extends from existing paving to
R/W.
12g. Length of pavement taper out of project meets:
WS2 = 60 for design speeds s 40 mph
~ WS for design speeds > 45 mph
ft. min. taper length approved by County
i
~ Traffic Engineer
i
f 12h. Transition from end of curb to existing paving is
shown (curb should nose down in 1211)
6
ck1iotv3.0/aug93
«
ROAD PL,ANS (cvnt' d)
12i. A 4" -wid.e, white painted fogline at 12" from the
~
edge of paving is indicatecl (tapers or tangents )
12j. Are the curb grades abave the caunty minirnutn af
o .8a?
. 1
~ 12k. If curb grades are below 0.84, has a speczal note
been adc3ed which requires a licen,sed land
surveyox to uerify that the curb forms are at the
cvrrect plan grade prior to construction?
13. NEW STREETS
12a. Does the pxQposed al.ignment meet Spokane Coun.ty
Standards?
vertica,l
SlopeS
vertical curve length
horizontal
curve radius
1 intersection separation
~
w ~ 1501 on local access
30{}' on arterials
1-3b. The plans shaw the typical cross sectian f or
streets
../r 13c. Does the proposed street width match the Findings
and Order?
13d. The cross-section shows :
existing R/W
praposed R/W
~f future setaside
13e. Does the typical section on the plans meet
Spokane County Road Staridards?
cross slope is shown
cross slope is within standards
cxoss slope is correct when checked an prof ile
13f. Curb type:
shown
~ proper type for the road classification
~ rneets Spokane Caunty Road Standards far curbs
within the public right-of-way
consistent with the curb type in the general
area
~13g. Are the curb grades above the county minimum of
Q.B9-.?
7
ck,kxse,va . 0 fAug93
ROAD PLANS ( cont' d)
✓ 13h. If curb grades are below 0.80, has a special note
been added which requires a licensed land
surveyor to verify that the curb forms are at the
correct plan grade prior to construction?
14. Has an "R" value test been performed for each
' soil group?
, 14a. The pavement section is adequate for the R-value
and Traffic Index for the road type
15. Locations where water is intended to flow through
an inlet or curb cut are at the low point in
vertical curve
16. SIGNAGE PLAN
16a. Stop signs are shown for all streets which
intersect an arterial (Check with County Traffic
Engineer if there is a question)
~ ✓ 16b. Street name signs are shown at all intersecting
streets
16 c. I s there a need f or barriers at the end of dead
end streets?
16d. Is there a need for other special signing? (Check
with the County Traffic Engineer)
f 17. Has the Fire District approved all proposed
private road turnarounds that are substandard
according to our Spokane County Road Standards?
18. CURB RETURNS
18a. Are BCR, MCR, and ECR stations/elevations on curb
returns shown
~ on the plan?
in the prof ile?
18b. Are the curb return elevations correct?
18c. Is there positive drainage from the road
intersection to the MCR?
18d. Curb return radius meets County Standard minimum
of 20' (to back of curb for rolled/wedge curbs,
to face for vertical curb face types)
18e. BCR, MCR, and ECR elevations are set to allow
drainage from the centerline to the curbline
8
CkliBtv3.0/Aug93
ROAD PLAXS (corit' d)
~ 18f, BCR, MCR, and ECR elevations are set so that the
superelevation between the intersection and the
curbl zne is banked properly for right -hand turns
into andl out of th,e intersectian roads (the road
slopes from the intersectipn down to the
flowline)
.
18f , BCR, MCR, and ECR ele-vations at intersections
without stap sign control are set so that the
superelevation between the intersection and the
curb1 ine d€ae s not exceec3 : (ref . AASHTO)
101~ (f lat terrain)
B fl (rolling terrain)
6 a (mauntainous terrain)
19, CUL-DE-SACS
J 19a. 'I'he cul-de- sac grades (tap of curb) rneet county
cul-de- sac standards (1 a min. )
~ 19b. The cu1-de-sac curb is shQVan in profile
20. INTERSECTIOITS
./f 20a. Do the intersections meet the 2 e grade
requirements?
~ 20b. Wheelchair rarnps are pravided at intersectians
with sa.dewalks
20c. If there is a change of direction at the
~ wheelchair ramps, are the ramps oriented so that :
_ a 5' x5 ` pad a.s provideal at the top of the ramp?
J the required 5'x5' landing zone at the bottam
of the ramp is located inside of a line drawn. 1'
inside a line extended betweeri the curb faces of
the adjoining street at intersections?
any drainage structures are located vutside af
the landing zorYe?
~ 20d. The intersection horizantal sight distan,ce
analysis shows that sight triangle encroachrnent
on private property is 2' or less
~ 21, I s tY7ere a neecl for sl Q;pe easement s?
~ 22. Is there a need for erosion protection?
9
ckl,i,atva. oJAug93
ROAD PLANS (cont'd)
23. DRIVEWAYS
23a. Can a driveway slope of 80 or less be maintained
between the edge of pavement and the right-of-
way?
~ 23b. Can a driveway slope of 12% or less be maintained
between the right-of-way and the building setback
line?
10
cklistv3.0/Aug93
DRAINAGE PLANS
~ 1. Has a plat map been submitted which shows lot
dimensions, street widths, etc.?
2. Was a map with ✓ contours spot
i
~ elevations submitted to properly determine
i , drainage basins?
~ 3. Were all existing drainage courses shown?
~ 4. Were all the proposed drainage courses shown?
5. Were Hydrologic calculations submitted for each
basin? (Bowstring if area s 10 acres, SCS TR-55
if area > 10 acres)
- Of f site ( 50 -yr storm if undeveloped, 10 -yr
storm if developed)
Onsite (10-yr storm)
~ Q for entire area
Q f or roads only
INFILTRATION POND
Actual pond volume provided
DETENTION POND
~ Release to pipe system:
i
i ✓ contain 50-yr developed
release at 50-yr pre-developed
secondary overflow to pipe in control
~ structure for 100-yr developed
~ emergency overflow weir for 100-yr developed
~ i sump prior to outlet to control structure
~ I 1' min. f reeboard
i ~ grassed sides/floor for publicly-maintained
i ~ ponds
; sprinkler system for publicly-maintained ponds
~ Retained on site, no drywell:
i
i , contain 100-yr developed
emergency overflow for 100-yr developed
i
i
208 SWALES
208 swale floor area, volume requirements
208 swale floor area provided
~ 208 swale volume provided
11
cklistv3.0/Aug93
DRAINAGE PLANS ( cont' d)
~ UNDERGROUND GRAVEL GALLERIES
i
~
i ~
~ 1. .3 void ratio for gravel free space volume is
i
~ used
~
i
2. Perc rate from field test is used to develop
i outflow rate
~ • ~
i ~ 3. 10-yr event volume is contained entirely
~ p underground
i
i i 4. 100-yr event volume is contained by a combination
of underground storage and above ground storage
i ; up to 8" depth
5. 100-yr event volume is contained by a combination
i ' of underground storage and above ground storage
~ exceeding 8" depth
Sa : Soil mixture is specif ied for water depth in pond
exceeding 8"
~ i
6. Entire gallery is wrapped in filter fabric
CONVEYANCE
Conveyance -
✓ pipes
ditches
✓ gutter flow depth is less than gutter height
Backwater - pipes, ditches
Headwater - culverts
✓ Curb drop/curb inlets
on grade ( f ig 16), sump ( f ig 17)
Grates - sump ( f ig 15), continuous grade ( f ig
16)
✓ Riprap - stone gradation, pad dimensions
~ ✓ 7. Soils type is "pre-approved" (Garrison, etc.,)
i for drywells without percolation tests
8. Does the drainage report identify the SCS soil
groups f or the proj ect area and f or the proposed
roads to be built in the project area?
i ~ 9. The drainage design maintains sheet flow patterns
~ in natural watercourses
i
i
10. The drainage design maintains existing sheet flow
~ patterns without concentrating flows
12
ckliatv3.0/Aug93
DR.AINAGE PLANS ( cont' d) ~ ✓ 11. Does the entire plat lie outside of designated
~ 100-year Flood Plain Area?
i
i
12. Does the entire plat lie outside of Zone "B" of
~ the designated Flood Plain Area?
~ 13. Is the max. street ponding in any part of a Zone
"B" less than 1' ?
✓ 14. Does the plat contain appropriate language
. limiting the lowermost opening in a structure
located in a Zone "B" to not less than 1' above
the lowest road elevation?
~ 15. The drainage concept is compatible with planning
commission requirements.
~ 16. The difference between present-and future flows
is retained on the site.
INLETS
✓ 1. The inlets shown are within the stream flow.
✓ 2. 'Inlets are shown on the low side of a road or at
the low point of a vertical curve
✓ 3. Curb type inlets are shown at sags and are
properly sized.
Perimeter does not include the side of the
grate against the curb face (all grate types).
Perimeter is divided by 2 for calculations
where no curb opening (Type 1) is provided.
Area = clear area = 2 for Type 1 grates)
v/ 4. There are no long curves with flat grades
which pose a problem.
~ 5. The centerline road stations, offsets, and invert
i
~ elevations for all inlets are shown on:
i
plans
i ~ prof ile .
~ 6. Grate type is shown on the plan and is
acceptable. (Spokane County Standard inlets in
county ROW, on private property other inlet type
may be specified) (Type 1: D-2; Type 2: D-4)
~ 7. A detail drawing of the 5rate/curb installation
is shown on the plans and includes the 2"
depression and transitions as per county
standards for grates that are located within
county ROW, or referenced to SCRS std. detail D-8
13
ck1intv3.0/Aug93
DRAINAGE PLANS ( cont' d)
✓ 8. A curb cut detail is shown on the plans with the
new county back drop with transitions and a 2"
depression for curb cuts inside county ROW, or
referenced to SCRS std. detail B-15
9. The plans shows acceptable curb cut details and
grate details for installations which lie within
private road easements.
✓ 10. If inlets are in a gravel road or a dirt ditch a
6' x 6'*A.C. apron is shown around the inlet.
✓11. Catch basin or special manhole details are shown
or a standard drawing is specified.
J 12. Critical low points in the drainage system have
been provided with overflow easements.
208 SWALE SYSTEMS
✓ 1. Is the swale located outside a future set aside
area? See Findings and Order for where setasides
are required.
~ ✓ 2.. The swale bottom and sides have sod or grass turf
specified. 3. Swale side slopes do not exceed a 3:1 side slope.
(A 2:1 side slope is allowed if swale depth is
less than 12" deep. Should only be allowed where
constrained by obstacles)
✓ 4. I f depth of water f rom bottom to drywell rim is
between 6 and 8 inches, soil mixture has been
specified which meets Spokane County Guidelines.
i / 5. Drywell is:
located within 8 feet of the curb line, or
~ J a maintenance access route and easement are
i
~ provided
✓ 6. Drywell stationing is staggered from the inlet by
at least 4'
~ 7. Multiple drywells are located more than 30'
(center-center) apart
ck1iaCv3.0/Aug93 14
DRAINAGE PLANS ( cont' d)
i ✓ 8. Soil type is appropriate for drywells (perc rate
~ z 72"/hr)
~ if not :
8a. overflow from a swale at a low point will be
~ directed away from building pads by
~ f an identified easement over improved ground
an existing natural drainage channel covered by
~ an easement
~
✓ 9. Drywell location does not conflict with
underground utilities.
10. Drywell type is specified.
~ 11. Drywell grate type is specified (Type 3-std.
detail D-7)
12. Drywell grate elevation is:
below the invert at the curb inlet
✓ between 6" and 8" above the swale floor
elevation
✓ 13. Does the note: "Wrap the drywell with a filter
fabric (Amoco 4545 or equivalent)" appear on the
plans? '
14. Swale floor elevation is:
✓ specif ied
✓ between 6" and 8" below the drywell grate
elevation
✓ at least 6" below the normal gutter flowline at
the curb inlet for swale without a drywell
✓ at least 8" below the normal gutter flowline at
the curb inlet for swale with a drywell
15. Swale floor
i ~ dimensions are shown
minimum area is shown
i ✓ the area matches the required area from the 208
• calculation for impervious areas.
16. Easements for the 208:
, ✓ are shown on the drainage plans
✓ are shown on the subdivision plat
are of adequate size to contain at least 6"
~ freeboard above the max. water surface elevation
i
i for the design storm
are tied to the lot corners.
✓ 17. The side of the swale that is the furthest
distance from the street should have a top of
swale elevation that is higher than the highest
water level of the swale.
ck1iotv3.0/Aug93 15
DRAINAGE PLANS ( cont' d)
✓ 18. The invert at the curb inlet is at or above the
max. water surface elevation for the design storm
✓ 19. Filter fabric
~ is specified for the gravel envelope around the
✓ drywell
is specif ied between the drywell and the gravel
envelope
~ installation specification is adequate.
.
~ 20. Irrigation plan for County-maintained 208 swales
i Lot plans submitted on
~ 208 LOT PLANS
1. Lot plans are required; submitted on
2. The 208 lot plans show:
✓ the lot number, block number, subdivision name,
date-drawn, scale, and north arrow.
. dimensions to lot corners
A drainage easements
~ setback requirements
~ swale floor elevation
0 swale floor dimensions
rim,elevation if drywells are present
curb cut station, offset, invert and length
I any drainage ditches
shows depth from the top of the curb
an attached cross section of the swale or ditch
~ 3. Lot plans have been stamped by a professional
- engineer on all pages
4. Lot plans are of sufficient scale to maximize
the lot size to the 8 1/2" x 1111 paper size.
. (Drawings may be on plain white paper)
~ 5. 208 lot plans were approved on
CULVERTS AND PIPE SYSTEMS
✓ 1. The road culverts are at the low points of stream
flow.
2. The headwater was calculated for culvert
entrances and is under 2 diameters for culverts
under 18" in diameter and 1.5 diameters for
culverts greater than 18".
3. There is a minimum of 12" of cover for all
culverts and storm sewer pipes
ckliatv3.0/Aug93 16
DR.AINAGE PLANS ( cont' d)
f 4. The designer has provided a letter from the pipe
manufacturer certifying that the intended pipe is
suitable for cover less than 3' (PVC), 2' (CMP,
RCP), 1' (HDPE/ADS) or the engineer has provided
trench details for upgraded pipe bedding for
these areas
5. The minimum velocity within the pipe system is
4 feet per second at design flow in a backwater
condition. (Note: The County Engineer may permit
lower velocities)
6. The backwater calculations show a minimum
freeboard of 0.75 feet for each catch basin or
manhole.
~ 7. The minimum culvert and pipe slope is 0.511 and
all pipes meet or exceed this standard.
~ 8. All angle points in the storzn sewer system have
suitable access such as a manhole for cleaning.
~ 9. At locations where two dif ferent pipe sizes enter
the same manhole the 0.8 diameter points of each
pipe are at the same elevation. (Note: Exception
allowed for drop manholes)
f 10. Is there any downsizing of pipes in a systems of
pipes that are 18" in diameter and smaller.
✓ 11. There is a downsizing of pipes in the amount of
3" f or a minimum of 100 f eet in a pipe sys tem
that contains pipes that over 18" in diameter.
✓ 12. All pipes in the pipe system are 12" and larger
as per Spokane County Standards; (10" pipe that
is allowed for connection of inlets to catch
basins or drywells, if the length does not exceed
44 LF and the velocity is at least 4 fps).
vl 13. Al1 storm sewer pipes are located a minimum of 5
feet from a rear or side property line and have
adequate easements for maintenance.
~ ✓ 14. Inlets on the same slope are located so that the
i maximum width of spread for the gutter flow does
~ not exceed 6' (f rom curb f ace f or Type "A" or
f rom back of curb f or Type "R" )
✓ 15. The plans and profiles show all culvert pipe
types, stations, offsets, lengths, and inverts
ck1iatv3.0/Au993 17
v
DR.AINAGE PLANS ( cont' d)
~ 16. Pipe materials meet county standards for systems
that lie within county ROW. (Note: The type of
pipe in private systems may be as specified by
the design engineer)
J 17. The culverts shown are properly stationed from
' centerline stationing.
✓ 18. Does the drainage system configuration avoid
conflicts with underground utilities?
~ 19. Is there a need for energy dissipation on any of
the culvert outlets shown on the plans?
20. Is there a need for rip rap around the culvert
outlet at any of the culverts as proposed on the
drainage plans.
f 21. The rip rap that is shown for the drainage plans
is adequate for the culverts where erosion is a
concern and the engineer has submitted
acceptable rip rap design calculations.
22. Pipe anchors are shown for pipe grades greater
than 150.
✓ 23. There are no instances where water is trapped
against a fill with no culvert shown.
24. Profiles and cross sections are shown on the
plans for all proposed channels and ditches.
J 25. Ditches with eroding velocities have a proper
lining for erosion protection.
.I 26. Water will properly flow from an existing or
proposed ditch on to the pavement as proposed on
the drainage plans.
J 27. Where the ditch profile passes from cut to fill
the flow has been properly disposed of.
cklistv3.0/Au993 18
.
EASEMENTS
~ 1. Adequate drainage easements are shown for
maintenance of drainage ditches or pipe systems.
~ 2. There are easements proposed or existing for
natural channels which cross the property.
f 3. An easement was provided where street drainage
was diverted onto private property.
f 4. The perpetual maintenance of private systems has
properly been provided for.
v 5. The maintenance of drainage systems within
Spokane County ROW has been properly provided
f or .
~ 6. APProPriate drainage language has been Provided
by the reviewing engineer to the surveyor and/or
engineer who is involved with the platting work.
i ~ 7. Pre-existing drainage easements on this parcel
~ are not affected by this plat
~ J
~
~ 8. Overflow easements are provided from swales/ponds
~ located in low points
MISCELLANEOIIS
1. QC check of review completed
(date) (init. )
2. Bond quantities for drainage item calculated
(date) (init.)
3. Vertical curve sight distance worksheets done
(date) (init.)
4. Vertical curve geometry worksheets done
(date) (init. )
5. Drainage volume worksheets done
(date) (init.)
6. Stamped road mylars to Permit Tech.
(Sylvia/Suzanne)
7. Stamped lot plans to Admin. Asst. (Sandy)
ck1ifltv3.0/Au993 19
EASEMENT
For a valuable consideration, receipt of which is hereby acknowledged, the Grantor(s),
ROXANNE SWARTZ, a single person
hereby grant S and convey S lo the Grantee(s), SPOKANE COUNTY, apolitical
subdivision of the State of Washington
,
th eir successors and assigns, the right, privilege and authority to construct, improve, repair
and maintain a drainaae easement
across, over and upon feet of the fallowing land, located in
_Spok_an-e__ (;o~iniy, "-1I;IIe (►f W;iti1611}"luil, Ic►-wil:
The South 45.5 feet of the West 26.5 feet of Tract 1, Short Plat No. 835-93, dated May , 1993, located
in the Northwest quarter, Section 21, Town'ship 25
North, Range 44 East, Willamette Meridian, Spokane
County, Washington.
The Grantor(s) shall make no use of the land occupied by said
drainage easement
except for
An c:xerc:i5ina; thE~ ri~;hts hr.rcin ~;r~inlcc:l, lh~~ Gr~~nl~~c~(s), -t heir succc!ssorS itncl ~i5tit~;I1S, ma
y
pass ,,nd r~~lmsy r,vcr saicl drainaqe easement atIcl
may cut and remove brush, trecs and other obstructions which in the opinion of the Grantee(s)
interfere(s) with gaid easement
The covenants herein contained shall run with the lanci and are binding upon all subsequent
oivners thereof.
In Witness Whereof, the said Grantor(s) h as executed this instrument this 29th day of
Auctust 19 94 ,
~ ~~/G -~J ~(.✓JG ROXfANNE SWARTZ
STATE OF WASHINGTON, County af
Spokane ss. (Individual Acknowledgment)
J, LINDA J. HAHN , Notary Public in and for the State of Washington,
residinb at Spokane, Washinqton , do hereby ce:rtify thiit on this 29th day of
Auqust , 19 94 , personally appeared before me ROXANNE SWARTZ,
a single person
to me known to be the individual described in and who executed the within instrument and
acknowledged that qrP signed the same as her free and voluntary act and deed for the uses and purposes herein mentioned.
GIVEN UNDER MY HAND AND OFFICIAL SEAL this 29thday of Auaust ,
19_Q4 . .
. : .
N ora:'.i'rl;c ii3 ancl for the State of WashingtUn, resicling at _ okane, WA in said County.
Eaeumnnt
Washington Legal k3lank Co., Bcllevue, WA Foem No. 78/78
MA'1'EFtIAI. MAY NQ'1' BE REPRODUCED IN WWOLE OR IN PAR'f IN AiVY FOF2ti1 WHA'I'SOl::VER.
~
i .
' 2e75
. - .y w , , i80DK
-3983M
f:. ~kD ~ , - ~ . ~ .
F • ' ' ~ -.1' "
'~I ' ' w~ ~ i , I A-i ~ • ~F ~ A
j'~AT?R.ANTYzDEED'
• , , .
'This Warranty Deed iis"-inade+and exe'cuted this 3rd day of July,1956,
I iby and between, Adlore L.Malotte and Ann J. Nlalotte, husband and wife,
- . ~ .
, -
hereinafter;called the Grantors, and the County of Spokane, hereinafter
+ ~ r• ' , ' • . -
. . - ~ .
. ; called the; Grantee, WITNESSETH :
• . e'.~ , _ -
Tha`t said Grantors, for and in consideration of the sum of One
Dollar and other valuable consideration, to them in hand paid by the
Grantees, the receipt of which is hereby.ackowledged, hereby conveys
and warrants to the said Grantee the following described real estate
situate in the County of Spokane and the State of Washington,to-wit:
The South 40 feet of the North 190 feet
of the West 3 acres of the East 2 of
Tract 175, lying South of the Railroad Right,
of Way ' in ''Opportunity".
Witness my hand.and seal the-day and year first above written.
. ry
State of Washington
) ss County of Spokane
On this day personally appeared before me Adlore L.Malotte and
A
Ann J. Mallote, husband and wife, to me known to be the individuals
a
described in and who executed the within and foregoing instrument,
and acknowledged that they signed same as their free and voluntary
act and deed-for the-uses_and purposes therein mentioned.
Given under my hand and-official 1 h
~t~.,,~ i 3r d y df July,1956.
: . . ,Q
~ otary Public i an for the
. . Fl
~~~;:a5~o~~'r•:;c~`,~; - •.State of Wash. re ding at
"`~"'''~~~~A': o►'~ . Dishman.
~ i.~~f R i~• :
~ ,a if~,~~~ T'~! •~n'~j~.iy ~
't6.~li,/\'••.~`'`V.W~! b~~~
~
~~j'~n►!~ . • • ,
F1LED FOR RECORO Jl1L 3 1956 qT
.
REQUEST OF
FRANK J. GLOVER; OKANE~COUNTY AUDITOF
. ~
f ,
.
-
.
/
HAHN Eh1G I NEER I NG 5094678189 P.01
i`
l•••
• + ' .
En ~.een~tr~c .
flahn r ,
.
:
N. 8623 '~'DxvxSion ~
SPokane '.~~A 94208 `
. ~ i
• ' (5001) 461-1550 .
~ ~ . FAX ( SG-) 467--8199 ,
~s
. t'•
FACSIMILE TRA3SMYSSION _CQVER SHaT ~
l-
i
i
DATE:
i IME:
. TRANSM:► i i p FaX ~ : .
i OE P,L PAGES: InCluding cover ,
i G ;
~ j .
rr~~~n~yv
:.0 C ! : JN -
`fRo1l; ~:fi'~~ ~r"'/..✓~:~- . -
:i-1 i IE N 1 S .
~ • .
~35
~
~ 0 ~'AX ~ R~PL'' DIAL; (S09) 467--8189 I
HAHN ENGINEERINr 5994678189 P.02
DRAINAGE EASEMENT - SKTPWORT'H RdAD ANp 4 TH AVE.
A portion of land fdr drainage Ea%ement purposes described as
follows:
The south 30.00 feet of the west 33.00 feet of Tract 1, 5hort
Plat NLJ. 835-9-3, i?ated Fkay, 1993, located in the N.W. 1/4,
Sectido 21, Town5hlp 25 north, Range 44 Ea5*, WillamRtte
Mewidian, Spokane Cvunty, Washington.
I
FAX COVER SHEET ly-k 217 4--
SPOKANE COUNTY - ENGINEERS 3rd FLOOR
FAX # (509) 324-3478
PHONE # (509) 324-3478
1026 W. BROAD4JAY S POKANE , WA 9 9 2 6 0
PHONE # (509) 456-3600
DATE : 24 Auau s t 94 FAX 40 -6~ 161
T0: Randv Hahn, P.E.
COMPANY: Hahn Encrineerina
CITY/STATE:
NUMBER OF PAGES (INCLUDING COVER SHEET): 1
FROM: Ed Parrv. P.E.~C (Plans Review, x257)
SUBJECT: SP835X - Harding Short Plat
Pond "A" Revision
4th Review
The following items are needed for the proposed changes, prior to
County approval
1. P.E. stamp on plan needs to be signed & dated
2. Calcs need P.E. stamp, signature, & date
3. Each submittal needs to contain a complete set of calcs. Please
include calcs for 208 & storm volume (required & provided).
4. Fees due for this account will be calculated upon completion of
the review process. Approved plans will be released upon payment in
full.
i
. . ;
i
~
0 to 15 20 30
(IN nW)
1 inch = 20ft
.
I - - - -L01...Z0 - -
i '
, 7' '
~ o. Z
w Q
W m v~S
Q
o~I o I 4
~ ? ~ J ~ 26247 ~y
= QI v > > ~ ~ ~IgT~" ~1~
~ a I ~-Q.
3 cD o I ~jONAI' ~
~l -j- I o Y ~I ~ ~ 26.5• I ~ EXPIRES 12/15/94 ~ o
~ w ORAINA,E EASEMENT O~
I 91.1
90.79 STA. 0+55.00. 41 FT RT
,YPE -Er
DRYWELL
I GRT. EL=1989.60
25' BUILDING SETBACK
~ so.s ~ / j
I~90.98 ~ ~c - ~ -
~6 I I - ~
~ 91.17
I
~ 90.7
30 LF 12' D.I. PIP 90.7
` INLET 0+63J5. 15' RT
IE= 89 220 SF '20g' ~ $ 1 ,~j~j' w
.25
\ OURET 0+45. 38.5' RT pOND BOT. E1=1989.10 I I ~ E
IE= 89.1 a ~ j
)1%-91.50
o~ h
1.86 EDGE OF PAVEMENT
FOURTH AVE.
TRACT 1 SHORT PLAT N0. 835-93 '
.
HAHN ENGINEERING N. 8623 SUITE 8 DIVISION SP0K~A,-.9aa08_
p lff g%-- P. , r Po.°"
; -
I AU~ 2 3' 1994 .
1
1 /`r~r •r +i~ ~
~ SPOi1A(;.tE
: f~EER '
. ~ . ra-a _ .
' PROJECT: DESIGNER: /c
S/-- I - DATE: -/zz -lel-~
HYDROLOGIC AND CWANNEL INFORMATION SKETCH
STATI ON : n n +
EL,
- aHw= ~
Tw, = n,~ -4 Tw
02 = Tw2 = 1 r~ So=
EL. L = EL.89,10~
Q 1= DfSIGN OISCHARGE , saY 025 MEAN STREAM VELOCITY = 2. . D
Q2 = CHECK OISCNARGE , SAY 050 OR 0 100 I MAX. STREAM VELOCITY=
N CC)
CULVERT HEADWATER COMPUTATION ? F,.
DESCR IPTION p SIzE INLET CONT. I OU7LET CONTROL HW=H + ho -l.So 0 i F o cosT COMMENTS
(ENTRANCE TYPE) O HW Ke H dc d~2O TW Ilo LSO HW ~ o j
.U.T ll IZ~ ,`1 ~r ,5 'J~ ,15 ,15 I.6~ l'~P•~'~~or~ ~
-n
m
c~
c~
SUMMARY a RECOMMENDATIONS:
EG-OF-k/
Ar~ I=I!Zn t~~~ 60-1-1-Er 00Airl,20 4- 90,31 ~ 6Cvk/ T
` Z9 n~
r 2-cl~ ~7~ ` 3Z.Z~ ~ - 44 ~
cr-t:- (Z= .Z1,~ f
' /llU 775-' FP_O W
F1
To r~C' OF l7/'r9r~ ~L L)
n
y • Appendi;c B - TABLES
Table i. - ~-.~t:-ance Loss CoefficienLs
Coefficient ke to zunly to Yeiocity head Y! for deier:~:inat; on oi head
2g .
loss at entrance ~o a structure, such as a culvert cr conduit, opeezrait-
ing full or partly -L;~M wi "th control at the outlet.
En~rance head loss He - ke V2
29
Tyre of Structure anu Desigr. ol' Entrance Cce f - i c~jn'L. k z
FiDe, Concrete
Projecting from so6{et end (groove-end) . . . . .
Projecting froa, =i1.1, so. cut end . . . . . . . . . . . C.j
HeadWaLl or headwal1 and wingwalls
Sock,et Pnd aT, Dir,e (groove-end) . . . . . . . . . .
Squ,:.re -edge . . . . . . . . . . . . . . . . . . . .
. j
Roundea (radi-us = i /12D) . . . . . . . . . . . . . . . ~
Ydtered to confcrm to 1 slope . . . . . . . . . . . . Y . ?
*Ead-Section Conformir.g t-o :Pill slope . . . . . . , . . .
Plre, or Pipe-Arch, Cor?-ugra-lCe3 Metal
, ,
Pro,jecii-rg : reM ; i ? (no he2dwa11) • . . . .
Hea3watl or heazvni I F-r-d ngualls
e ;1,
Sauzre-edZ . . . . . . . . . . . ~ -
Mit,ered io con=o~.- ope . . . . . . . . . . . .
*End-Sectilon co::--Po~~ ~c L'ill slope . . . . . . . . . .
. ' ' .
. 3ox; RPinforced Concre te Headwalt parallel t,o eTbankment (no wing-aalls;
Souare-eclge3 on 3 ?cges . . . . . . . . . . . . . .
Rou-:3ea ort 3 edge:. to ;a.dius of V12 bar--r-I
dimens ion . . . . . . . . . . . . . . ~ „
. . . . . .
Wingwalls at 30c -;,-0 7jc io barrel
Square--=: ~-~ed at cTown . . . . . . . . . . . . . . .
Crrnrn ecya = ounded to radius of 1% i 2 bar: = i
dimension . . . . . . . . . . . . . . . . . . . . L . =
WingWalls at 10 ~ to ?j` to b8rrel
Souare-ectged 2.t cro;m . . . . . . . . . . . . . . . . j
Wingwatls parallel (exiension of sides)
Square-edged 2t c?-ovn . . . . . . . . . . . . . „
. , n. 7
*Note: "End Secti-on conforn-ing to fill slope"; m2de of either ret.=_! or
concrete, are the sections commonly availzb± p from rP_rnufP_;. -.;rers . -
. From limited hydrzu? i-c tests they are equivc.lent in ore*-a';;` or. to
a headwail i-n ooth ='nlet and outlet control. SomF end se_::ons,
incorporatin3 z closed taper in their design have Z Sti r-
hy_
draulic performance. These latter sections can be des_gned using
the informztion given for the bevelled inle t., P. 5-13.
C HA RT 2
_ 180 10,000,
- 168 8,000 EXAMPLG (2) (3?
- 156 6~0 o=42 incnes (.3_5 teet) ~ 6.
' ' 0- 120 cts r 6.
- 144 5•000 5.
- 132 4•000 mw' Hw ~ 6. 5.
D leet •
- 3,000 (1) 2.5 8.8 5. 4.
- 120 4.
(2) 2.1 7,4
' 2.000
- 108 (3) 2.2 7.7 4.
3.
- "D in tee• 3. .
- 96 ~ 1,000 3.
800
- 84
600 2• 2-'
" 500 ~
400 2.
- 72
_ _ 300 1.5
c~ ~ . N 1.5
Z- 60 v 200 / w 1.5
~
r-
- z' ~ . W - -
o - 54 ~ Q
v - -
w - 48 ~ w 100
> cr 80 Z r
-j / a . z
c~ / = 60
42 v w 1.0 1.0
o . o 50 Hw ' SGaLE h iRarvcE ° ~.o _ .
~ 40 D TYPE ~
W w - .9
36 30 soac•e eaqe .itn c -.9
- ~ _ 33 -e:,.cli o .9 _ -
Q
p 20 (2) Grx,e end ritn Q
W- ,
- 30 ....=.01~ _ _ .g .8
. c31 crc:.* ena - .8 -
;rc;ecr~nq - .
' - 27
10 '
: -24 8 .7 r-.7.
.7 ,
. 6 To use scole (2) er 13? :•,)ect _ - ,
_ 21 5 norizonronr to secle :t+en
4 use slraipAl incline. 1,-e cRrovqA I .
0 nnQ 0 stoles, or re~e: se os
3 iltu:trorea. .6
2 - -
-15
1.0 - .5
- 12 ~ HEADWATER DEPTH FOR
CONCRETE PIPE CULVERTS
::,qFAU OF PUBIIC ROAOS JAN. 1963 WITH lNLET CONTROL
~ ~ :l ~p- v," Fl
' S-22 . D i
, AUG, 2 3 119-
b '
~ I
~ SPHAI'd
~ CHQRT 16
. .
3 ~ - •
. . i ! - ~fi` 1 ►
~
,
2
, ~
: ~'G
3.0'
dC CANNQT EXGEED TOP OF PIPE
~ 1.5' 1.0'Di A.
0 0 l 10 20 30 40 50 60 70 80 90 100
DISCHARGE-Q-CFS
~
a
~ ~ ; I / / y • / 1 ~ ~
9' >
U. w
4
~
7
~U ~ 91 • ~ ~ 6
F- ~8~ ` ~ ' : • ~
d dc GANMOT cXGFED TQ? 0F PIPE ;
W 3 1//fr 6~'7 5 W
<
v 2 *-4' DI A. t ~ ~ ~ . . ~ Q
~ 0 100 200 300 400 50C 600 700 800 900 10009
~ DiSCHARGE • -CFS -
cr-
U . V
~ i4
. ~ • % ~ , .
12
'0 I ( } i ~ ~
"oool
dc GANNOT EXGEEO TOP OF PIPE
/--f94 ' DI-L
0 1000 200~- 3000 4000
DISCHARG"c - Q - GFS
BUREAU OF PUBLIC ROApS
JQN.19sa ~ GRIT CAL DE PTH
5-34 CIRCULAR PIPE
.
n
BACKWATER PROGRAM FOR ROtJND/ARCH CULVERTS
ENTER: NUMBER OF CULVERTSO
1
OUTFLOW CONDITIONS PIPE N0. 1- TAILWATER DATA:
1) SPECIFY TYPE OF TAIi,WyTER DATA INPUT: S- SINGLE TW-ELEV. ,
F - TW/HW DATA FILE
s
2) ENTER: TW-ELEV 89.77
ROUND/ARCH PIPE INPUT COJING INFORMATION:
PIPE TYPE CODING:
1- CONC%SMOOTH BOR-7 (n=0.012) 5- CMP ARCH (NEW GEOMETRY)
2- CORRCiGATED ME!'~:? n= 0. 0 2 4) 6- CONC / SMOOTH ARCH ( OLD )
3- HELICAL CMP (n-~ac varies) 7- CONC/SMOOTH ARCH (NEW)
4- CMP ARCH (OLD G~OMETRY) 8- ROLTND (user sets n-fac)
ARCH PIPE CODING - EQUIV:?LENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH
15" 18"X 11" 17"X 13" * 42" 50"X 31" 49"X 33"
18" 22"X 1?" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 7111X 47"
30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52"
36" 4311 X 27" 42"X 29" * 72" . 85"X 54" 83"X 57"
INLET TYPE CODING: . 17 CMP/PROJ. 4- CP SOCKET/PROJ. 7- CMAP/PROJ. 10 - OTHER (SEE.
2- CMP/HDWALL 5- CTP SQ.EDGE/HDWALL 8- CMAP/HIDWALL FHWA REPOR'F
3.- CMP/MITER 6- C? SOCKET/HDWALL 9- CMAP/MItER HDS N0.5) ~
ENTER PIPE # 1: LENGTH (zft), DIA ( in) , PIPE-TYPE, OUTLET- IE, INLET- IE, INLET-TYPE
893@?j8,89.1,89.25,1
ENTER N- VALUE FOR P I PE N0 . 1
.013
INFLOW CONDITIONS - OVERhjOW DATA AND UPSTREAM VELOCITY DATA: '
1) ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE (NONE=O, BROAD-WEIR=1, SHARP-WEIR=2) 90.5
90.5, 0 . ~
INFLOW'CONDITIONS - OVERFLOW DATA AND UPSTREAM VELOCITY DATA:
1) ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE (NONE=O, BROAD-WEIR=1, SHARP-WEIR=2)
90.5,0
2) SPECIFY TYPE OF VELOCITY DATA INPUT: S- SINGLE VELOCITY UPSTREAM
V- VARY VELOCITY ACCORDING TO V=Q/A
.
S
3) ENTER: VELOCITY(ips) UPSTREAM
0
.
ENTER : QMIN, QMAX, QTNCRE, PRINT-OPTION (STANDARD=!, CONDENSED=2, EXPANDED=3 )
1.05, 1 . 15, .01, 1
PIPE N0. 1: 30 LF - 12"PIPE @ .SOo OUTLET: 89.10 INLET: 89.25 INTYP: 1
Q(CFS ) HW ( FT) HW ELEV.* N-FAC DC DN '!~rv DO DE HWO HWI
***************1r****xF****************~*******Y***~x**************************t
1.05 .72 89.97 * .013 .44 .46 .'07 .67 .55 .72 .64
1.06 .72 89.97 * .013 .44 .46 .067 .67 .55 .72 .65
1.07 .72 89.97 * .013 .44 .46 .6-7 .67 .55 .72 .65
1.08 .73 89.98 * .013 .44 .46 .~7 .67 .55 .73 .66
1.09 .73 89.98 * .013 .44 .46 .67 .67 .55 .73 .66
1.10 .73 89.98 * .013 .45 .47 .01'7 .67 .55 .73 .66
1.11 .74 89.99 * .013 .45 .47 .01'7 .67 .55 .74 .67
1.12 .74 P9.99 * .013 .45 .47 .0'7 .67 .55 .74 .67
1.13 .74 89.99 * .013 .45 .47 .01'7 .67 .56 .74 .68
1.14 .75 90.00 * .013 .45 .48 .637 .67 .56 .75 .68
1.15 .75 a0.00 * .013 .46 .48 .~7 .67 .56 .75 .68
SPECIFY: N- NEWJOB, - FILE, S- STOP 't:Qu,~t,-S ~b/_lD F2crn
S
n T-O YY-\ 1 d C~ ~ ir? r E ~:r 'c
.v.=VG COUNTY DEPARTMENT OF PUBL7` WORKS
Surface Water Management Div_-sion
BACKWATER ANALYSIS PROGR'=`,s
version 4:20
1- INFO ON THIS PROGRAM
2 - BWCHAN
3 - BWPIPE
4 - BWCULV
5 - BWBOX
6 - DATA-FILE ROUTINES
7 - RETURN TO DOS
ENTER OPTION
7 Stop - Program terminated.
Returning to Point & Shoot...
C:\PS>vp
C:\PS>echo off
Returning to Point & Shoot...
C:\PS>vp .
C:\PS>echo of"t"'
7
Accessing Flowmaster
Circular Channel Analysis & Design
Solved with Manning's Equation
Open Channel - Uniform flow -
Worksheet Name:
Comment:
Solve "r-'or Actual Depth
Given Inout Data :
Diameter.......... 1.00 ft
Slope............. 0.0050 ft/ft
ivIanning' s n....... 0 . 013
Discharge......... 1.10 cfs
Computed Results:
Depth 0.46 ft
velocity.......... 3.10 fps
Flow Area......... 0.35 sf
Critical Depth.... 0.44 ft
Critical Slope.... 0.0059 ft/ft
Dercent Full...... 46.22 0
Full Capacity..... 2.52 cfs
QiAAX @.94D........ 2.71 Cfs .
. Zroude Number..... 0.92 (flow is Subcritical) -
Open C'nannel Flow Module, Version 3.21 (c) 1990
HaestGd Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708
_ OH-IRM- 2/15/86
US Department of Agriculture
Soil Conservation Service
' DESIGN W4RKSHEET
for
Trapezoidal Channel Section
prepared for
~ HARD I NG
in
SPOKANE COUNTY, WASHINGTON
Designer : RGH Checker
Date : 08/21/94 Date
BASIN A
~ ~ ; ~
Slope = 0.0160 ft/ft Hydr Radius = 0.20
'n' value = 0.030 Area = 0.51 sq.ft.
Capacity = 1.10 cf s
' Velocity = 2.2 fps
Sideslope = 2.8 :1 _
Bottom width = 0.0 ft.
Depth - 0.4 ft.
, r6 -
~
DRAIN EASEMENT j SKIPWORTH ROAD AIdD 4th AVE.
A portion of land for darainage easement purposes described as
follows:
The south 45.5 feet of the west 26.5 feet of Tract 1, Short Plat
N0. 835-93, Dated May , 1993, located in t2ie N.W. 1/4, SeCtion 21,
Township 25 north, Range 44 East, Willamette Meridzan, Spokane
County, Washington.
;
r
. RF~lNlr=D
o 4 ,a ,s zo 30 AUG 2 3~~94
~
sPOKME courJrY ENa,taE,:{R
(IN FM )
1 inch = 20ft
• I ~ ~ w ~ i0 1'z0,
_ 17, _ I
. o. Z Y ~ ~,L G
m
• I
~
t1i
. ~ ~ • x
0
o
~ ? 26247
= a
~ o ( ION~' ~
3I ~ o) ~ N ~ ~ ( ~
a w ~ 00 Zs.s• EXPIRES 12/15/94
~ 0) ORAIt,IAFE EASEMENT I OI
WI
~ • 91.1 ~ , 1'1
90.79 ~ STA. 0t55.00, 41Ft- -RT
TYPE "Er
, DRYWELL
" ~ ~ ' GRT. Et=1989.60
ti - 25' BUILDING SETBACK
90.5 w
_J)p90.98 - W -
~ ~ ~ Q I I
91.17
~ I
•s~ ` ~ ~ ~
90.7 17
I 1 I
~ 90.7
` 30 LF 12" D.I. PlP:
\ INLET 0+63.75, 15 RT ~ 'IE- 89.25 22o sF -20~' 81.55
OUTLEf 0+45, 38.5' RT POND I I ~ E
~ IE= 89.1 BOT. EL=1989.10
N
'A-si.so
v-~
~9l.8s EDGE OF PAVE-MENT
- ~
~ FO U RTH AV E.
TRACT 1 SHORT PLAT N0. 835-93 .
HAHN ENGINEERING N. 8623 SUITE B DIVISION SPOKANE, WA. 99208
PROJECT: DESIGNER:
J/~) - DATE- -7/LZ
HYDROLOGIC AND CHANNEL INFORMA710N SKETCH
sTaTioN +
EL.
~
ANW= ~
TWi = --4 TW
. Q2 = TWz = EL. 92~ 1.~= 3 QS
EL.B
o, = DESIGN OISGHARGE , SAY 025 l MEAN STREAM VELOCITY ~
Q2 = CHECK OiSCHaRGE , SAY Q50 OR 0
100 / MAX. STREAM VELOCITY=
Z }
CD CULVERT HEAOWATER COMPUTATION J F
DESCRIPTION Q S~ZE INLET CONT, I OUTLET CONTROL HW=H + hp --Sp a x~ o COST COMMENTS
(ENTRANCE TYPE) O HW K@ H dc at2D TW I10 LSQ HW ~ o j
, ,
.D ~1r,~ l r't 1?ra
.T J,~ IZ" .`I~ ,67 , 1S .I 5 ~ 1.01A 1 pt~
~
~
m
c
~
c~ .
SUMMARY a RECOMMENOATIONS: ~ rr~ .°1''~'• w ~5~,~~0
~ lTc~DwA7~,f?
~E/')~ ~~._~l'~7~~~~ ~;1..~ ~n' ~ C)c~1"L~~T C~~~~ii~.'~1,. • CS9 ! lC~a ' ~0,3I ~ CO~IT~~LS
Z9 O r
d_
7.3~.~ 3', ^ .Z~3Z,Z~)
~
5 rr i_I'If , n107ZE-r 71~I E~-EV, E~vlsc.s T>E-r--r4 Fao wn
FL-ao0- To 7"0P oF eo~2r?.T~ ~LL):~,
e71~ ~l~n r'1ii,c~ ~iC lJ.T,-:--
f
! ApDendix B - TABLES
Table 1. - r~trance Loss CoeificienLs
Coefficient ke to zpply ~o; r•elocity head ~ 2g foz dezermination oi :nz-d
loss at entrance to a struc "Lure, such as a ciaLVert or conduit, o~~
ing full or paarily 1'.i11 with control at the outlet.
Entzance head loss He - ke Y2
2g
Twe of Struc ;,ure zad Design of Entrance Cee f_ _c:en 'U kz
~
Fipe, Concre te
Projectirg fron, Till, socket end (groove-end) . , . . .
Projzcting fror-, =i11, sq. cut end . . . . . . . . . . . Cl, j
xeadwall or he2•3w4.1.1 and wiugti+a,.lls
Soc :et end ot, pipe (groove-end) . . . . , . . . . .
Sou.^._Te-edge . . . . . . . . . . . . . . . . . . . • i
Rou.rded (radi-us = 1/12D) . . . . . . . . . . . . . .
N~itered to conforn -to i Jiti.1. slope . . . . . . . . . . . . V . ?
*End-Seci:on Confo-ming to fill slope . . . . . . . . . ,
Pi-ze, or Pipe-Arcr, Corru.gate3 Metal
Pro,ieczing i ro:- : ill (no headwall ) • . • . , . . _ • . ~ .
Headuall or heaZvpli -annawingwalls
Souzre-edEe . . . . . . . . . . . . . r -
. . . .
Mitered io con= a W ~o = ~ 11 slo. pe . . . . . . , , , . , : , - .
. .
*Ehd-Sect-ion co:: -f-o-miug to fill slope . . . . . . . . . : ;
/
. Box; R?inforced Conc: ete . .
HeadWall parallel f,o emo?nxment (no Wing-wa11s;
SOUp-re-edge3 On 3 2dgeS . . . . . . . . . . . . . . . j
RoL::zea on 3 edges to radius of 1/12 bar:
dau:ensaon . . . . . . . . . . . . . . ^
. . . . . . ~ . ~
WingWalls zt 30C. to 75C to barrel
Sauare--~:A,r--ed a_t croxn . . . . . . . . . . . . . . .
Crawr~ --r-ol.ulded to radius Of 1../ 12 b22':
dirension . . . . . . . . . . . . . . . . . . . . . ~ . =
' Wingxalls at ?0C to 25` to barrel
Square-e4ged at crown . . . . . . . . . . . . . . . j
Wingwalls para.llel (extension of sides)
Square-edged at crowm . . . . . . . . . . . . . . . ~ .7
*Note: "End Section conform~ ng to fill slope" ; a,2dp oP either ret-a? or
conerete, are the sections conmlonly available from r,zrn.L'all- -.;,LrZrs , .
. From limited hydrauli-c t,ests they are equi•:r?ent iin to
a headuall }n ooth i-nlet and outlet control. Some end se_::ons)
incorDorating a closPd iaper in their design have z su,-_:r_ hy_
drauli-c performance. These latter sections can be desigz_d using
the i-afornation given for the bevelled inlet, P. 5-13.
.
.
C HA RT 2
- 1ao 10,000,~
- t68 8,000 EXAMPLE ( I ~ (2) (3~
- 156 6'000 D=42 intnes (3.5 t*et) ~ 6'
" 0•120 cts r 6.
- 144 5•~0 5.
- 132 4,000 Kw' Hw 6. 5.
D teet
- 3,000 2.5 e.6 5. 4.
- 120 4• :
2.000 (2) 2.1 7.4
'
- 108 (3) 2.2 7.7 4.
3.
- 'Q in fce• 3.
- 96 1,000 3•
800
- 84 L-27-•
600 2
' 500 /
w- 72 400 2.~ .
c~
300 ~Q =
Ln I. 5 I. 5
2 cn a: -
z- 60 10 200 w 1.5 L ~
~
z u, -
o - 54 m
o' a - -
w - 48 ~ w 100 ~
> ~ oc 80
-j ? r
/ _
U/2 v 60 W 1.0 1.0 _
U. . 0 50 NW SCALE EN iRQNCE ~ 1.0
-
(t 40 D 7YPE a:
w W -9
1- - 36 30 (1) Soa+crr eGpe witn Q '9 .
w 3 .9
~ - 33 0
a a)
Q QQ (2) Grotre !1d ritA ui
_ 30 .g .8
(3) 6r:.,e end - •8 -
- 27 . ;ect;np - '
!0 r
'24 ~8 C-.7
6 To use seoie (2) or 1?; :•,,lect _ •
, 21 ~ 5 horizantoity to seele ::~en
, 4 use stroiqAt incline: ; -e "rouqA
D ond O seotes,ot re,e-se es
3 ~ 6
illusfrofeC. '
2 . _
- IS
.5 - .5
1.0 - .5
12 HEADWATER DEPTH FOR
CONCRETE PIPE CULVERTS
BUREAU OF PUBIIC ROADS JAK 1953 WITH lNLET CONTROL
~ 5-22
L ,
,
~
r GHQRT 16
3
. • ~ ~ ~ ;
!J r i i
2
. 4. a' ~ . ~
3.5
~ 3' I~ dc CANNOT EXGEEO TOP OF PIPc'
~2
I ~..5~ < < t
S , !
• , 1
41.0-hh ~ 1 Q.
~
GO l 10 20 30 40 50 60 70 80 90 100
r,1 oIscHaRGE- :-cFs
6 ~S
~
' 7
<
lsJ ' ~ - . . : r
LL . >
ti,
~U 4 6
7
~
~ S' ' z
a. 3 dc CANtVOT EXGEEQ +CZ Or PIP_ 5~..
Lli
d
LL)
° ' o
;
v 2 ' OiA. ~ i 1 • ~ ' Q
~ 0 100 200 300 400 50C 600 700 800 900 1000 ~
~ OISCHARGE - CFS -
~
U V
14
12
~ . ~ • ,
i o
~ I • ~ ~ t ,
~ ~,i~ivZolK
6 f i~~~~151 { ~ ~ • CC CANNOT EXCEE 0 TpP OF PI P--- ~
31
9' pI,~ ~
40 1000 20 C•: 3000 4000
oI scHaRC~ • o - cFs
BUREAU OF PUBLIC ROA05
JAN. 1964 G RIT CAL D E PTH
5_3;a CIRCULAR PIPE
n'
BACKWATER PROGRAM FOR ROUND/ARC:: CULVERTS
ENTER : NtTMBER OF CULVERTS,
1
OUTFLOW COND I T I ONS P I PE NO. 1-TAI LWATER DATA :
1) SPECIFY TYPE OF TAILWaTER D~'?A INPUT: S- SINGLE TW-ELEV.
F - TW/HW DATA FILE
s
2) EN'i'ER : TW- ELEV
89.77
ROUND/_7~RCH PIPE INPUT CODING IN=ORNATION:
PIPE T4'PE CODING :
1- CONC/SMOOTH BORE (n=0.~1.2) 5- CMP ARCH (NEW GEOMETRY)
2- CORRUGATED METAL (n=0..'24) 6- CONC/SMOOTH ARCH (OLD)
3- HELICAL CMP (n-fac var_=s) 7- CONC/SMOOTH ARCH (NEW)
4- CMP ARCH (OLD GEOMETR`'; 8- ROUND (user sets n-fac)
ARCH pT?E CODING - EQUIVALENT P.CU1,fD SIZE MUST BE INPUTTED PER FOLLOWING TABLE:
EQUTV-DIAM. OLD-ARCH NEW-=?CH * EQUIV-DIAM. OLD-ARCH NEW-ARCH
11 5" 18"X 11" 17"X 13" * 42" 50"X 31" 49"X 33"
-18" 22"X 13" 21"f= 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 2411X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47"
30" 36"X 22" 35"1: * 66" 79"X 49" 77"X 52"
36" 43 "X 27" 42 "1: 2 9 " * 72" 85 "X 54" 83_11X 57"
INL,ET !YPE CODING: 1- CMP/PROJ. 4- CP SOCY:='~'/PROJ. 7- CMAP/PROJ. 10 - OTHER (SEE
2- CMP/HDWALL 5--CP SQ.E_',G-E/HDWALL 8- CMAP/HDWALL FHWA REPORT
3- CMP/MITER 6-* CP S0CK=7F/HDWALL 9- CMAP/MITER HDS NO. 5)
EN1 ER PIPE # 1: LENGTH ( f t), DIP,_n), PIPE-TYPE, OUTLET- IE, INLET- IE, INLET-TYPE
8Q~m~t8,89.1,89.25,1
ENTER N- VALUE FOR P I PE NO. 1
.013
INrLOVr CONDITIONS - OVERFLOW DA-:= AN-D UPSTREAM VELOCITY DATA:
1) EN"I'ER: OVERFLOW-ELEV, OVERF_0:'I-TYPE (NONE=O, BROAD-WEIR=1, SHARP-WEIR=2)
90.5
90.5,0
INr LOW CONDITIONS - OVERFLOW DAT:: AND UPSTREAM VELOCITY DATA :
1) ENtER: OVERFLOW-ELEV, OVERt~LO:^I-TYPE (NONE=O, BROAD-WEIR=1, SHARP-WEIR=2)
90.5,0
2) SFECIFY TYPE OF VELOCITY D~:i:=~ INpUT: S- SINGLE VELOCITY UPSTREAM
V- VARY VELOCITY ACCORDING TO V=Q/A
. ~
S3) ENTER: VELOCITY(fps) UPSTREAM _
0
ENTER: QMIN, QMAX, QINCRE, PRINT-OPTION (STANDARD=1, CONDENSED=2, EXPANDED=3)
1.05, 1. 15, . O1, 1
PIPE N0. 1: 30 LF - 12"PIPE @ .50o OUTLET: 89.10 INLET: 89.25 INTYP: 1
Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI
1.05 .72 89.97 * .013 .44 .46 .67 .67 .55 .72 .64
1.06 .72 89.97 * .013 .44 .46 .67 .67 .55 .72 .65
1.07 .72 89.97 * .013 .44 .46 .67 .67 .55 .72 .65
1.08 .73 89.98 * .013 .44 .46 .67 .67 .55 .73 .66
1.09 .73 89.98 * .013 .44 .46 .67 .67 .55 .73 .66
1.10 .73 89.98 * .013 .45 .47 .67 .67 .55 .73 .66
1.11 .74 89.99 * .013 .45 .47 .67 .67 .55 .74 .67
1.12 .74 89.99 * .013 .45 .47 .67 .67 .55 .74 .67
1.13 .74 89.99 * .013 .45 .47 .67 .67 .56 .74 .68
1.14 .75 90.00 * .013 .45 .48 .67 .67 .56 .75 .68
1.15 .75 90.00 * .013 .46 .48 .67 .67 .56 .75 .68
SPECIFY: N - NEWJOB, F - FILE, S - STOP ~ ECavF;1~ "t11=FTr- Fr2~y
S ^ - •
KING COUNTY DEPARTMENT OF PUBLIC WORKS
Sur-face Watzr Management Division -
BACKWATER ANALYSIS PROGR.AM
Version 4.20 ~
1- INFO ON THIS PROGR.AM
2 - BWCHAN
3 - BWPIPE
4 - BWCULV
5 - BWBOX
6 - DATA-FILE ROUTINES
7 - RETURN TO DOS
ENTER OPTION
7 Stop - Program terminated. Returning to Point & Shoot... :
C:\PS>vp
C:\PS>echo off
' Returning to Point & Shoot...
C : \PS>vp
C:\PS>echo off
n
Accessing Flowmaster
Circular Channel Analysis & Design
- Solved witr Manning's Equation
.
Open, Chan.ze 1- Uni f orm f low
Worksheet Name:
Comment:
Solve For Actual Depth
Given Input Data:
Diameter.......... 1.00 ft
Slope 0.0050 ft/ft
Manning's n 0.013
Discharge......... 1.10 cfs
Comput2d Results:
Depth 0.46 ft
Velocity.......... 3.10 fps
Flow Area 0.35 sf
Critical D`nth.... 0.44 ft
Critical S?ope.... 0.0059 ft/ft
Percent Ful1...... 46.22 0 Full Capac_ty..... 2.52 cfs
. QMAY @.94D........ 2.71 cfs .
Froude Num.ber..... 0.92 (flow is Subcritical)
Open Channel Flow Modu1e, Version 3.21 (c) 1990
Haestad Methods, inc. X 37 Brookside Rd * Waterbury, Ct 06708
OH-IRH- 2j15j88
. • US Department of Agriculture
Soil Conservation Service
V DESIGN WORKSHEET
for
Trapezoidal Channel Section
prepared for
HARD = N G
in
SPOKANE COUNTY, WASHINGTON
Designer : RGH Checker
Date : 08/21/94 Date
BASIN A
Slope = 0.0160 ft/ft Hydr Radius = 0.20
'n' value = 0.030 Area = 0.51 sq.ft.
Capacity = 1.10 cfs
Velocity = 2.2 fps
Sideslope. = 2.8 :1
Bottom width = 0.0 ft. -
Depth ' - 0.4 f t.
- - - - :
~ 6 i
-F
R DRAIN LiiSLJMENT j SKIPWVRT+# ~OAD AN{V 4th AY E.
A pvrtion of land for darainage easement purposes described as
fo1 laws :
The south 45.5 feet af the west 26,5 feet af Tract 1, Shor~ Plat
• NO. 835-93, Dated Me3y r 1993f loCated in the N.W. 1/4f S$ct3on 21r.
'~ownshzp 25 north, 'Range 44 East * Wi ~ lamette Meridian, Spokane
County, Washingtgn.
:
~
Hahn Enp'neenng, Inc.
North 8623 Division Street • Siiite B
Spokn►ie, Washington 99208
(509) 467-I550
FAX (509) 467-8189
August 23, 1994
Mr. Ed Perry
Spokane County Engineers
Public Works Huilding
W. 1026 Broadway
Spokane, WA 99260
RE: SP-835-93 - DOROTHY HARDING
OUR FILE IVO. 93H134
Dear Ed;
Please find enclosed a final revised configuration of the swale
located at the intersection of Skipworth Rd. and 4th Ave.
The current landowner of Tract 1 of the Short Plat 835-93 has
specified this configuration rather than the one previously
submitted.
Please note we have not changed the pipe location or hydraulics,
but have instead extending the swale north and elimiated the east
leg. This provides for a safer distance frvm the existing
roadway to edge of swale. We have also enclvsed the revised
legal description of the easement for this configuration.
Please contact me as soon as possible as you know we are in
construction and would appreciate it if we could move ahead at
the nearest opportunity.
Thank you.
Very truly yours,
HAHN E14GINEERING, IN .
andell G. Hahn, P.E.
P r e s i d e n t
AUG 2 3 1994 .
I SPoKaf~~~ ~~46'1;";Y ENc~RTER
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HAHN ENGIhJEERING 5094678189 P.01
7 1•••~
l r ( `
! 1
•
. . .
Hahn Engineenng, Inc, ; 9
N. 6 ~2:5 "R" Ui~is~.cn = .
. Spaka~ ~ 9a2 pG
.
(509) 467--1550
F'AX (500) 467--8I89 ~
. ,
.
FACSICSILE TRANSMIS5IQN COVER SHEEZ',
,
,
DP`fE: 8-23-94 • ;..iT- r.C: •
lRANSNf l lG t=An z: 456-4715 ,
"C i AL PAHS : 1 ~ t I rc luL _t , : c~►ver
~ ~ • ~
i G; PiAic Ed Pex]Cy .
r%jO; iP^Ny Spokarie Countv Enctineers ,
i : Oti
L~ ti~.
; ;•;;=,~i; RandV Hahn. ,
i.GM? iEN i S fiwo hard. cop.jgs to follow.
. t1
.
4-
. z,
i 0 FAX a REF' Y D I AL : ( 509 ) 467--6189
;
;
~
1 i•
HAHN ENGINEERIMG 509467$189 P.02
e
.H~ hn Envneenng, Inc.
NOrth $623 Oivisiorr $treef • 5trire B
SpOkarre, WaskirigPurr 99208
(509) 467-I550
IrAX (509) 467-3189
August 23, 1994
Mr. Ed Perry
Spokane Lpunty Engineers
Publ ic Works 13uiiding
W. 1026 Hraadwa,y
Spokanp, WA 99260
RE: SP-935-93 DCtRO'CHY HRRD I NG
OUR F 3 LC NO, 93H134
Aear E:d ;
P1va5ez find enclosed a fihal revised cnr►fig,uration of the swale
lorated at the ihter~sectiQn caf Ski.Rworth Rd. and 4th Ave.
'fhe curr gnt landowner of ?'ract 1 nf the Short PIat 835-93 ha5
speci-Fied this ccanfiguration rather than the one previousiy
submitted.
Please ntite we have not changed the pipe ICJGatlOf1 0r hydraul ic-ii,
but havo xnstead extending the swale north and elimiated the ea5t
Ieg. This pr ovides fdr a safgr distance frQm the existing
roadway to eqge of savale. We have a 1 aQ enc 1 Qsed the rova sed
legal ciescription Qf the easement for this cvnfiguratidr,.
P3~~~~ contact me as soan as pds5ib1e as yau know we are in
construct,ion and would appreciatv it if we could mpve ahead at
the nearest aQpcartunity.
Thank you.
very truly vours,
HAHN ENG INFER T NG o I N .
andr el3 G. Hahn, P.E.
presid4--nt
HAHN ENGINEERING 5094678189 P.03
_ ' , -
~30
(ni nn )
1 inah = 20ttr
~ ' .
~Lo 1iZ0
17' ~
r ~
lo•
~ ~l zl
0 73 2M7
ZD 0 m i xQNA,L ~
al
u,.i 00 za.s' f EXPIRES 12/15/94
~
~ I DRAINAt;E EASEMENT ` OI
90.79 STA 0+59.00, 41FT R1'
?YPE " B"
1 , I nRYWELL
GRT. ELo 1989.60
25" 6uELDIrvG. _sEreAcK
~ 90.5 I~--9Q,98 \ ~ ~ ~ I w
01.17
~ ~ss ~ 1
90.7
1 1 90.7
30 l.F 12" 0.1. P!P
\ INI.ET 0+83.75, 15' RT . F 208. 220 IE- 89.25
OUTLET 0+45, 38.5' RT p4Na
gOT. El-1989.10
'jk'_91.50
\ ` ` r
-org1.86 EOGE OF PAVEMkNT
FOURTH AVE,
,qCT 1 ~ SF9RT p - $~5-Q3 .
~
HAHN ENGINEERING N. 8623 SUl1'E B bIVISiON SPOKANE, WA. 99208
-
P ROJECTDESIGNER:
aarE:
HYOROLOGIG ANO CMANNEL 1NFORMATION SKETCH
STA7! ON +
EL.
~ AHW_ ~
Q, /5 TwI _ TW
T W
~2 2 ^ EL. nj~l L 3>
EL J 2
01 = QESIGN OISCNAR6E , SAY 025 ~ MEAN STREAM YEI,OCITY=.,,~' ~ Z
Q2 = CHECK DISGHARGE , 5A1f Q50 OR GJ00 MAX, STREAM VELOCITY= m
~ Z
~ CuLvEar NEADWATER COMPUTA71pN
OESGRIAT3014 ~ S~ZE 1NLET CONT. ~ OU7LET CON7ROL HW-N + ho -LSO ax F p Cos1' COMMENSS z
~ , m
IENTRANCE TVPEJ p HW Ke N dc ~D TYV ho LSa HW A m
T
M
i i lD Z
.a~ r.r jz" ~10 ci
(S)
~
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Sl1MMARY & REGOMMENflAI'IONS~ ~ _ $ $
~ rTc:~°D t~ i~''~~, ~~~v l~~lnr ;~i9G~'-1.c~`~ r~'-~.. q o
• M
k5 A~ UJ,4 TEyP- C.e ~ YtPO r'Yl
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Alur6-r i51.Eil, r~?~rr~
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1 .~r .~19~^.• n v.c,t`~ C~!%f'-;t-
HAHN ENGINEERING 5094E78189 P.05
re •pper},diX B ~ iABL1w7
xable I • - Entrance Loss Coefficient,s
fficient k to appZ' to veloc~.ty head ~ for. de~er~n~,t~at,on of Y:ead
C oe e ~ ~ .
lvss at entrance to a structure, such as a cul.vert or cQnduit, ope= -ct-
fng fuil1 or partly 'LixU with control at the outlet.
v2
Entrance head loss He = ke ~
oe of Structure and Desip pf EritrariCe CoefT'icient ke
T
Pipe, Concrete
Pro jecting from f il,l , socket end (graove -end) . . . . . 0.2
projecting fxom ii11, sq- cut end . . . . . . . . . . . 0,5
HeadwaZl or hea3wall and vingwal.ls
Socket end of pipe {groove-end} . . . . . , . . . . tO .2
Square-e4e . . . . . . . , . . . . .
• ~
Rounded (radilas = V12D) . . . . . . . . . . . . . , ~ . ~
Mi.tered to confa= to fi3.1 slope . . . . . . , . . . • • ~
*End-Section conforming to fill slope . . . . . . . . , . C . 5
Fipe, ox Pipe-Arch, Caxrugatea Metal
Pro,le ctiu ~ ~ t~eadwall ~ . . . . . ~ ~ •~'.Y...
fro.~~ iill no • . • . ~ . werwnnnuc:tAr•zm:iun~.Hihi•WIltlt.,nvR par.ryr I.ih~'i+rtieltwas~ir.no..vrt~aaSvr•re~v...•+•R°n:e9aT.;.x.,;,-,d.+u.,,.w-2.:~...•••yb
Headwall, or headwal1 and vingvalls
SqUar2 - 24€° . . . . . . . . . • . , . . . . . . . . C . j
,Miterea to cdztform to i i1.3. slope . . . . . . . . . . . . ? .
4Fnd-Sectlon cor.forming to fil.l slope . . . . , . . . . • D
. $ox~ Reinforced ConcxetA :
Headwall paralIel to er;bankment (no wingwalls )
Square-edaed on 3 edges . . . . . . . . . . . . . . ~ . j
RotLli3ed on 3 edges to radius of 1112 barrel
dimension . . . . . . . . . . . . . . . . . . . . C . 2
'riingwalls at 30C. to 75C to barrel
quare a_t crow'1 . . . . . . . . . , . . . , _ . .
Crown rol.uided to radius of 1%12 barrel
dimension . . . , . . . . . . . . . . . . . . . . . 0.2
Wingval1.s at ?Ott to 2SC to barrel
J • ~
Square-edged at crowm . . . . . . . . • . . . . • .
Wirlgwslls para1],el (extension og sides)
Squaxe-ed.ged at crown . . . . . . . . . . . . . . . 0.7
*Note: "knd Section conforming to fi11 sl.ope", rrjeae of ei ther zett.J, or
concrete, are the sectians common].y available gr= rPn1_2ec vtrers . . From limited hydraulic tests they axe equiv2l.ent in orre ra,~_On to
a headuall in ooth anlet and outlet control. Some er,d sQ:r'ons,
incorpoxating a closed taper in their design have s su.e, _cr hy,
dra,ulic perPormnce. These 1atter sections can be des^gr.ed using
the lnfox-zatiou given for the bevelIed inlEt, p, 5-13 •
HAHN ENGINEERING 5094678189 P.06
CHA RT 2
,eo 10,000
168 a,QOO EXAMPI.E ( ~ ) (2) {3)
I56 Qc42 inthes t3.5 f.et} 6.
6,000 Q. 120 sie -
144 5,040 5.
4,000 „W* nri 6' S,
l3Q 0 teet
4.
120 f~t 2.3 8 8 5~ 4.
(2) 9.1 7.4
10e 20000 (a) 2.2 9.7 4• 3.
'Q in ire' 3• '
96 1.000
3' .
800 '
- sa 6oa ~ 2_ 2_.
- 5oo ~
~ 72 400
T - 300 1.5 I.S
c>
Z N N
z - so ~ 200
~
-
~ - 54
ua 10 0 ~
~ ~ 80 = r ~ . ~
d
n / ~L
~.0
c~ f Q ~ ~ W - 1.0
~
Q Hw SGALE ENTRQNGE ° 10
50
40 D TYPE ~
W
36 30 (1) Soatri ldqe wi4h d r•~ .9
w peaC~oi1
d r` 33
20 (P) Grooit enE wl!h a
Q 30
(3) Grecre ea! •e _
-27 projtciir,Q "
10
, ~ .7
-2 4 8 L , 7
6 To use saoOe (2) or 13; 2101ecr
S horizontoUy to sco1t ,.;,'ren r
4 uie sttoiqht Incllned t%1.e 'hrough I,
p ond Q sCates, cr reterse ae
3 ~~r~e~~o►ea. .5 ~ .
- 15
1.0 - .5
-12 . HEapwaTER DEPTH FOR
CONCRETE P#PE CUI.VERTS
WITH iNLET CONTRQL,
AuREAU OF PUBIIC ROApS JAN. 1963
5-22
D
HAHN EMGINEERING 5094078189 P.07
t
' CHART 16
. ,
2
31 dt CANfV07 EXCEED TOP OF PSPE w
1 F ~ !
r• (.51
04
E Q,
i
0 0~ 10 20 30 40 50 60 70 84 90 t00
DISGHARGE- c- CFS
s ~ 3 : 8
4,!i'~ ~ ~ I e' 7
~
~
LLJ
W i!%~ ! I , ' ~ I , ' W
~V4
7
j y..,~, , ~ • { 1 ~ . ' ~ ~ ~
/4101 CANNQT EXCE£0 TOP OF rtPE W 3 7t . ~ ~
o 100 200 340 400 56c sao 100 aoo soo looo ~
~ DlSCNARGE-O-CFS ~
14
12
1°
~ - . .
.
de GANNOT EXGEE 0 TOP G F PI PE
o,
4 4000
p I004 24G4 3000
OISCNARGc - Q - CFS
SUREAU OF PVSLlG ROAOS
JAN. 1964 G RIT GAL DE PTH
5-39 cIRCULaR PIpE
. ~
HAHM ENGINEERING 5094678189 R.08
n ,
BACKWATER FROCRAM FOR ROUND/ARCH CULVER'I'S
ENTER : N'UMIIER 4F CUI,,VFRT$
1
OCJTFLOW CONDITIONS PIPE NO. 1-TATLWATER DATA:
1} SPECYFY 'T'YPE OF TAILWATEkZ DATA rNPL7T: S- SINGLE TW-FLEV.
F - TW/HW DATA FILE
~
2) ENTER : TW- ELEV
$9.77
ROUND/A.R.CH PIPL ZNPUT CqDING INFORMATION:
PIPE TYFE COI7YNG :
1- CONG/SMOOTH 80RE (n=0.012) 5- CMP ARCTT (NEW GEOMETRY)
2 - CORRUGATED METAL (11= 0 . 0 24) 6 CQNC / SM40TH ARCH (OLD)
3- HELTCAL CMP (n-fac varies) 7- CONC/SMOOTH ARCH (NEW)
4 - CMP ARCH (OLD GEQMETRY) 8, ROUND (user sets n-fac)
ARCH PTPE CODING - EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING TABLE:
EQUIV-DI,AI4. OLD-ARCH NEW-ARCH * EQUYV-bYAM. OLb-AIZCH 1VEW-ARCH
15it 1.81IX 1.1l, 17"X 1311 t 421, 50"X 31" 49"X 331,
18" 22"X 13" 21"X 13" *48" 58"X 36" 57"X 38"
2 3." 25"K 16" 2411X 1811 * -5411 65"X 40" 64"X 4311
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47"
30" 3611 Y 22" 35"X 24" * 66" 79"X 49" 77t'X 52"
36" 431?X 27" 42"X 29" 72" 85"X 54" 83"X 57"
TNLET TYPE CQbYNG :
I - CMp/PR,OJ. 4- GP SOCKET/PROJ. 7- CMAP jPROJ . 10 - OTHER (SEE
2- CMp/HI)WALL 5 M CP SQ. EDGE/HDWALL 8 ~ CMAP/HDWALL, PHWA R.EPORT
3-CMp/MITER 6- CP SOCKET/HDWALL 9~ CMAP/MZ'Z'ER HDS NO. 5)
ENTER PYPE # 1: LENG'_!"H (f t) , DIA( in) , PIPE-TYPE, OUTLFT, IE, TNLET-TE, TNLE'T'-TYPE;
BQ3m?J8,89.1,89.25,1
ENTER N-VALUE FOR PIPE NO. 1
~013
INFLOW CONDZ'TZONS - OVERFLOVv DATA AND UPSTREANi VFLOCITY DATA :
1} EN'T'ER: OVtI2YLOW-ELEV, OVERFLOW-TYPE {NONE=O, BROAD-WEIR=1., SHARP-WEIR,2}
90.5
90.5,0
INFLOW CONJJZTIONS - OVERFLOW DATA AND UPSTREAM VELOCITY DATA:
1) ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE (NQNE=O, BRO.AD-WEZR=I, SHARF-WETR=2)
90.5,0
2) SPECIFY TYPE pF VfiLpCITY DATA INPUT : S- SINGLE VELOCZTX UPS'Z'REAM
V- VARX VELOCZT'Y ACCORDING TO V=Q/A
HAHN ENGINEERING 5694678189 P.09
S
3) ~NTER: ~IELaC ITY ( f ps ) UPSTREA,M
0
ENTER: QMIN, QMAX, QINCRE, PRINT-0P'Z`Z0N (STANDARD=1, CQNDENSEb=2, EXpANDED=3)
1.05, 1. . 15, . 01, 1
P I PE NO. 1: 30 LF r 12 " F T PE @ . S 0 o OUTLET ; $9.10 YN'LE'Y' : 89.2S INTYP: 1
Q( CFS ) HW ( F'; ) HW ELEV,* rT- FAC DC DN `Z'W DO DE iiWO HWZ
*****~~,~**~,~*~r~*~*****+*************~*~~~r~~~*~****~r****************~**********~r
1,05 .72 89.97 * .013 .44 .46 .67 .67 .55 .72 .64
1.06 .72 89.97 * .013 ,44 .46 .67 .67 .55 .72 .65
1.07 .72 89.97 * .013 .44 .46 .57 .67 .55 .72 .65
1.08 .73 89.98 ~ .013 .44 .46 .67 .E7 .55 .73 .66
1.09 .73 89.98 * .013 .44 .46 .67 .67 .55 .73 .66
1.10 73 89.98 W 013 45 47 .67......_.._...6.7 ~.......___.55._.__._..... 73 ................66
. 1 a,.. . _ ......:..7 4 ' 8 9..:. 9 ~Y .._.*...___.,-...Q 13 4 5.. ..47 . 67 . 67 Y . 5 5 . 74 . 6 7
1.12 .74 89.99 * .013 .45 .47 .67 ,67 .55 .74 .67
1.13 .74 89.99 * .013 .45 .47 .57 .67 .56 .74 .58
1,14 .75 90.00 ~ .013 .45 .48 .67 .67 .56 ,75 ,68
1.15 .75 90.00 * .013 .46 .48 .67 .67 .56 .75 ,68
SPECIFY: N- NEVJJOB, F- FILE, S- STOP ~ CQuAL~ ~Po.A.Io -1)EPf"tJ- e)- YYl
S Zol7-q ',/1-\ } ~ eiRA'j'~* ~PL.0 S
4 F }~epjp o ~E ►2 ~a rr'~'7'~ .
KTNG COLTNTx ]DEPAR'z'MENT OF PU13LIC WORKS
Surf ace Water Management Division
BACKWATER ANALY$ I S PROGRAM
Version 4.20
1- INFO ON THIS PR4GRAM
2 ~ 8WGHXAN
3 - BWPTPE
4 - B6+ICULV
5 - 13W8OX
6 - DATA-FILY, ROUTYNES
7 - RETURN TQ pOS
ENTER 0PTION
7
Stop program terminated.
Returning tp Point & Shoot.. .
C:\PS>vp
G : \PS>ECho oft
HRHN ENGINEERING 50946781$9 P.10
Returning to Point & Shoot...
C:\PS>vp .
C: \PS>echo off
Accessing Flowmaster .
Circular rhannel Analysis & Design
Salved with Manning' s EquaL-ion
OpQn Channel - Uniform flow
Woxksheet Name :
Camment:
Solve For AcGual Depth
Given Input Data:
Diameter.......... 1.00 ft
Slope . , . . . . . . . , . 0 . 4050 ft/ft
M2nnirlg' S n . . . . . . . 0 . 013
Di,scharge . . . . . . _ , . 1.10 cf s
Cotnputed Results :
Depth 0.46 fti
velocity., . . . . , . . . 3.10 fps
Flotv Area......... 0.35 sf
Criti,cal Depth.... 0.44 ft
Cra.tical Slope.... 0.0059 ftjft
Percent Full...... 46.22 %
Full Capacity..... 2,52 cfs
QM.AX @. 94D . . . . . . . . 2.71 cfs
Froude Number•. . . . . 0.92 (flaw is Subcritical )
OpeIl Ci-iannel Flo:v Module, Versiox2 3.21 (c) 1990
Haestad Kethods, Iiac.* 37 8:t:ookSid,e Rd * Waterbury, Ct 06708
HAHN ENGINEERIMG 509467$189 P.11
ON~~Ru- 2j15j66
US Department of AgxiGulture
Soil Conservafiion Service
DESIGN WORKMET
for
TrapezoidaY Channel Sectian
prepazed fpr
IIAIR I:10 X NC2;
kn
SPOKANE COUNTY, WASHTNGTON
Deei.gnex : RGH Ch.eckeT
Date : 08/21/94 Date
~~r~c~F~IC~ePc7t~*d1~~c*dFzL-~c4c~tlskSk~ilr~~C*~l'~e~~e~e'h~~k~*~c~l•~eik~ic~lck~r*~~~e~cklic~•~fes~~rirx~~~h*~e1r}r~F~r~'rtir
BASTN A
Slope = 0.0160 ftjft Hydar Radius ~ 0.20
'n' value = 4.030 Area ~ 0.51 sq,ft.
Capacitx - 1.10 cfs
Velocity - 2.2 fps
Sidealope ~ 2.8 :1
Bottom width ^ 0.0 ft.
Aepth = 0.4 ft.
HAHN ENGINEERING 5094678189 P.12
[6
.
pRAIN EASEMENT - SKIpWORTH ROAU AND 4th AVE.
A portion df 2and fdr darainage easement purposes described aa
fo1lows:
The aquth 45.5 feet of the west 26.5 feet of Tract 1, Short P1at
NO. 835-93, Dated May , 1993, loCated in the N.W. 1/4, Section 21,
Township 25 north, Range 44 East, Willamette Meridian, Sppkarie
Cou»ty, Washington.
f ~ .
,
Engineering Lnc.
Hahn
Nvrtl: 8623 Divisiott Stre`t • S«ite B
Spo;Urtte, Waslcingto►i 99208
(509) 467-1 550
FAX (509) 467-8I89
Auaust 15, 1994 `
Mr. Ed Perry
Spokane County Engineers
Public Works Huilding W. 1026 Broadway
Spok°ane, WA 99260
RE: SHORT PLAT 835-93 (DOROTHY HARDING)
OUR FI LE NO. 93H134
Dear Ed:
Please find enclosed fve your rev.iew and approval, the third
submittal of the swale reconfiguration design for SP 835-93
located at the corner of Skipworth Rd. and 4th Ave. in Tract 1.
Again, I would app.reciate your immediate attention to this matter
as we have men and equipment on site waiting.
T han k you.
Uei- r t r-u1 y yvurs,
HAhN ENG I NEER I IVG , I NC . _
, .
~ 4,P andell C. Ha'nE.
President
51v
, . AuU
~ ~VA)
~P~~N~ CO.UNTY flaNEER
v ~
0 10 15 20 30
( IN
. 1 inch = 20it. ~
Lo i+Zo~ -
- - ~
~
_
,
, o6
! , I 0~ IV'~
,
~ I
Z ' Z V I ~
O :2I ~ I M ~ ml
Q ( ~ ~ I 2d847 ~
~ a M
0
F-
~ I ~
~1
3
J. N
Y LLiI u- 00 EXPIRES 12/'15/94 ~ o)
~ ~
0
90.79 / 3, ( STA. 0+55.00, 40Fi RT
DRAINAGE EAEMENT T(PE " Er
~91.1 ~ 1.1 ~ DRYWELL
I GRT. EL=1989.60
25' eUILDiNG SETBACK
I 6 S~. 7'~
190.98
90.1~ ~
so. 1 w . ~
~ 91.17 18,
I l 8'~
\ 90.7 90.1 J ^
~ . ~ ~
~ 2 21 sF -208" ' 81.55' -
POND ~
\ BOT. EL=1989.10 E
~ 91.50
_EOGE OF PAVEMENT- _ _
~ - ,
FOURTH AVE.
TRACT 1 SHORT PIAT N4. 835-93 ~
HAHN ENGINEERING N. 8623 SUITE 8 DIVISION SPOKANE, WA. 99208
' Oa-IRM- 21I5J88
US Departmeryt c~f AgrxcL.Il tUre
50i1 Ccanserva-tion Service
I)E S]: GN WQR1,::5HEaE7'
for
Trawezaidal Ghanriel Sectican
prepar-ed far
. , .~.u ,~h ~ ° r~:.
~
i ri
5PON::ANk GC1UhlTY q UJAS}-! :C NG"I"ON
D e s i g n~.a r- ~ R. M-I AM N G h ec E:. e r„~._
Da•k e v i? 8/18 / 9-1• Da t. e
BAa T h! A
S1. a pe 0.0160 f t/ f t H y d r Fi cicl i LIS-
' i7 ' va1 ue 0d0:7-,(-) A rea i)a52 s q. f t.
Capacit y 1.10 c fs
ue:locity 2.1 fps
Sideslape
Bot-tom width - 0d0 fte
Depth - C.). 4 f t .
7- i a (A) . f'xhibit 7-3: Permissible velocity for vegetation-linej waterways and
outlets. 1/ (Washington State Supplcmcnt) '
,
l:roti i on - Erosion
rcs istant susceptible
" S1oPc?~ ,oi ls soils
Cover rangc "K" 1than .33 "K" greater than .33
(ttjscc) (ft/sec)
bentgrass 6
mcadoN foxtail 5-10 • ? S
creeping foxtail over 10 G 4•
chewings, red, hard and sheep
t'escues
Kcntucky bluegrass
smooth bromc 0-5 7 S~
tall fescue 5-10 6 4
timotlay ovcr 10 S - 3 .
orchardgrass
pubescent, intermeciiate, ' .
thic}:spike, strcambanK
rccd c.}narygrass 0-S 3/ 5 4
5-10 4 3
rrcstcd hheatgrass C .
tiibcrian wheatgrass C
}iercnnial rycgrass 3/ , .
;tnTiual ryegrass 4/ O-S-- 3. 5 • 2.5
su~angrass 4/
.
sm.z 1 1 grains 41
1! Use velocities exceeding 5 feet per second vnly Where good stands and
proper maintenance can be obtaineci.
. Do not use on slopes steeper than 10 percent exccpt for revegetated si.de
slopes in combination with a stene or concrete center section.
Oo not use on slopes steeper than S percent except for vegetated side
^ slopes in combination with a stone, concrete, or highly resistant
vefi ctativc center sectian.
.
Ann«als--usc on less than 5 pcrcent slopcs or as temporary covcr until
permancnt cover is cstaUlished.
SC:S-KA-January 1982 Ertii Supplement ~
. BOWSTR I W ME THOD (TEN 1FEAR STOR M aES IGN) PROJECT: fiP -S35 --93
DETENTI ON BASI N DESfGN BABt N: A
REVtEWER: RGH
NUMg ER OF aRWE LLS P ROpOSE a DATE : 16-- Aug-94
0 Si ngle (type A) 1 Double (type B)
Tcrtal Ar~ (calc.) (see H 1) 1.41
Ti me af Canc. (calc.) (see H 1) 9.35
Compasite "r," (calc.) (see H 1) 0.33
Ti nie af Canc. (nii n) 9.35
Area (A,c res) 1.41
C` Fatbo r 0.33
Im pervious Area (isct. ft.) 3204
Volu me P rovitbd 355
O utfiow (c#s) 1
Area w C' Factor 0.47
~#1 #2 #3 #4 #Y #6 #7
Ti nie Ti nie 1 r►be nsitf Q clev. V in V out Stamcje
fnc. I nc.
(niin.) (sec. ) (i njh r. ) (ds) (cu. ft. ) (cu. ft. ) (cu. ft. )
(#1 ~A YC *#3y (0uff . *#2) (#5 -#6)
9.35 58a. 98 2.36 1.10 $2E`i 560. 98 265
5 300 3.18 1.48 594 340 294
14 600 2.24 1.04 824 640 224
15 90D 1.77 0.82 898 900 - 2
24 1200 1.45 0.67 938 1200 --252
25 1544 1.21 0.56 951 1540 549
30 1 9DO 1.04 0.48 963 1800 - 8'37
35 2100 0.91 0.42 969 2100 -1 131
40 2400 0.82 4. 3B 988 2404 -14 12
45 2704 0.74 0.34 996 2704 17015
54 3400 0. 68 0.32 1009 3400 1991
55 3300 0.64 0. 3D 1039 33DO 2287
60 3604 0.61 0. 2B 1075 3600 - 2a25
65 3900 0.60 0.2B 1141 3904 27S+,9
74 4200 0.58 0.27 1184 4200 - 3t~ 16
75 45+04 0.56 0.26 1221 4504 - 3279
84 49DO 0.53 0.25 1230 49DO 3570
85 5100 0.52 0.24 1279 5100 -3821
90 5404 0.50 0.23 1 300 5440 4100
95 5700 0.49 0.23 1 342 57{}0 - 4358
,.,n ^ 01► .4 ,%^nn
w ouuu v . 40 u . dez E,~z t)wV - 4010
GRAiNAGE POND CALCULAT~ONS
Feclu inecl g r.-Lssy srrafe pon cl storagp val u rne
= 1 m~~erviaus Area x.5 in.a 12 i n a`ft. = 133 cu. ft.
Gmssy swaie pancl volu nie provicecl = 355 Gu. ffi.
. •
DRYkqE LL R EQUi RE MENT 8 -10 YEAR DES IGN STOFi M
Nhxirsiu m stamJe rtclui reci Ixy Bam#rin g = 294 cu. ft.
Nu r+il3er R nci b/pe a# D nprd Ss RecOu irecl = 0 Si ngle
1 Doub[e
T iCaAE +QF CONrENT RATI ON (m in utes)
Tc r anr+eriancl I Tc (gutter) A reas "Ol
Ot = 0.15 t2 = 380 1.34 0.30
Zl _ 3 a. 07 0. 9a
Ll (A) = 160 Z2- 2.5 0.00 0.00
N(A) _ 0.4 B = 0 0.00 0.00
5(A) _ 0.015 n = 0. 03 0.00 0.00
.3 = 0.016 0.00 0.00
Tc (A) _ 6.41 cl = 0. 43 0.00 0. O4
Tota! A Canila "C'
L1(B) = 0 Tc (gu) = 2.94 1.41 4.33
N(B) _ 0 Tc(A+B) = 6.41
S(B) = 0 lQ=C'~*A,- 1.10
Tc(tc7t.) _ 9.36 ~(est ) = 1.10
Tc (B) _ 0.0 1 rTbe nsi$/ = 2.36
Tc (t,oia! ) = Tc ;ove dan c!) + Tc (gutt,er)
Tc (overianct) _ OtN Ll*N)S "0.5) "0.~)
Ct =0.15
L1 = !.ength o# OtQriRnc1 F1cytiv
N = frirfion facto rof overdancl fiiow (.4 fb r amme raJQ 9 rass cover)
S _aUemcje sioloe af cverlan ci flaw
Tc (gutber) = l.en gth (ft. YVelo* (ft.,kec. V60
B= B otborti ~M ckh af gutter or cfitch
Zl = i rr-orsi? af ctoss s1ope an e of r_iifich
Z2 = i rw rse af cross slape bia af ciitc~h
c1= dep#h of flcw i n gut#er (esti rr•1Rtae, check esti ma#,e with Ffow)
A ma = c!'"B +d "V2 "jZ1 +22)
Wetfiecl eaerinietpr = B I'd+ (1)§ in t,atrt L 1IZ1 1lsin (atn(1fZ2)))
H~?d mu lic Racli us =R _AreaMetteci Pe n niete r
Velocity = 1.4861n*fi " .6~'*9 ^.5
F low= Veiocity*.A. rea
n = 0.4 16 fiv r ~~l:)hRft
s= Iongitucii nal siope of gutter
. 1
Hahn Engineenng, Inc.
North 8623 Division Street • Stiite B
Spolcane, Wnshiiigton 99208
(509) 467-1550
FAX (509) 467-8189
August 15, 1994
Mr. Ed Perry
Spokane County Engineers
Public Works Building
_ W. 1026 Hroadway
Spokane, WA 99260
RE: SHORT PLAT 835-93 (DOROTHY HARDING)
OUR FILE NO, 931-1134
Dear Ed:
Please fiind enclosed for your review and approval, the third
submittal of the swale reconfiguration design for SP 835-93
located at the corner of Skipworth Rd. and 4th Ave. in Tract 1.
Again, I would appreciate yvur immediate attention to this matter
as we have men and equipment on site waiting.
Thank you.
Very truly yours,
HAHN ENGINEERIRIG, INC.
~
4~n~d~ e lGl~ 13 . Hahn , P. E.
President
R ECE1VED
OFFICIAL PU9UC DOCE~SN~FICE AU~ 18 1994
SPOKANE COUNTY ENG
~ ~ . ~ . ~ SPOK~+NE COU~ ENGINEER
OP
pp-'Wz:CT # SP~3~X
SU6mITTAI # ~
RETURN TO C4UNTY ENGINFER
. ~
0 10 15 20 30 ~
( lx ~sr }
. . 1 inch = 20ft
~ - - ,
- 17' - ~ .
,o0
~ ( + F-
0 Z Z U ~ 4
o ~I ~ ml
atf LLI I ~ r
2
e847 ~ ~o~ Z ~ IONAI~ ~
01
3 N
Y CO EXPIRES 12/15/94 ~ o
w ~ o 0
r Q
' ~ ~I
~
90.79 33' I Sik C-:~.:~•. 40FT RT
DRAINAGE EASEME'vT (
I • • ~91.1 91.1-7
'-Z. -a~
25' BUiLDiNG SETBACK ~
I ~ 7•
90.11 u I
I ~
~ s.
~ 9m7 r ~ ~ ~
( 1 s S
t ~ -
~ : c.;-~'~- 90.1
221 Sr" ' 206' $ 1. 55' A
POND ~ gE
BOT. EL=1989.::
I _EDGE OF PAVEMENT_
FOURTN AVE.
TRACT 1 SHORT PLAT N0. 835-93
HAHN ENGlNEERING N. 8623 SUtTE B DIVISION SPOKANE, WA. 99208
. BOWSTR iI•JG ME THOD (TENJ YEAR STOR N1 DES IGN) PROJE CT: SP -835 -93
DETENTI QN BASf N DES IGN BASI N: A
REVIE1111ER: RGH
NUMg ER OF DR1FUlIE l1S P R4FOSE a DATE : 16- Aug-94
0 Si ngle (type A) 1 DQUhIe (type B)
-
TatRl Atea (r.alc.) (seQ H 1) 1.41
Ti n7e af Conc. (cRlc.) (see H1) 9.115
Cump4site " (caIc.) (see H 1) 0.33
Ti nie of ronc. (mi n)' , 9.35
A nea (A,c res) 1.41
0' Fac+bo r 0.33
!rn perviau$ AretL (stl. ft.) 32+00
'Volu me P roaricbcl 355
O utfia+n (cf s) 1
Area ~ C' Factar 0.47
#1 #2 #3 #4 #5 #6 #7
Ti mp Ti mp i ttfio nsit/ 0 clel. V in V out -slor~,c~e
1 nc. 1 nc.
(n-j in.) (see. ) (i n./h r. ) (cfs) (cu. ft. ) (cu. ft. ) (cu. ft. )
(#1 I'9D) (A'r *#3) (autf. *#2) (#5 -#6)
9.35 5 rri. C 6 2.35 1.10 826 560.98 265
6 300 3.18 1.48 594 340 294
10 600 2.224 . 1.04 824 600 224
15 9~'.? 1.77 0.82 898 9co -2
20 1200 1.45 0.67 9~8 1~} 0 - 252
25 . 1500 1.21 0.56 951 1500 - 549
:1,0 1900 1.04 0.48 9 6~'3 1 eG4 - 803 7
35 21~'.0 0.91 U. 42 969 2100 -1 131
40 2440 0.02 0. ~ 988 2440 -1412
45 270 0 0.74 0.34 995 2704 -1706
50 J0ll0 0.68 O. .~G . 1~9 J~o - 1~~~
55 3~'JrJ 0.64 0. ~l 1 C09 3300 - 2261
64 33 60 0 0.61 0.23 1075 3E00 - 252
65 3900 0.60 0.28 1741 3900 - ~.50
70 4200 0.58 0.27 1 184 4200 - 13016
4 9j" 0 0.% 0.26 1221 4~'~0 -3279
8o 4800 0.53 0.25 1230 4800 -3570
85 5100 0.52 0.24 72'79 5100 -.3~,°21
90 5400 0.50 0. 21 33 1.300 5400 - 41Q0
95 5700 0.49 0.23 1 342 5700 43%
~ avt r rvt n n A n r. nn -4 rv-% rti r- nn n w ^ -tr.
..'1 0 ~.~.J .1. `tCG 1•=C', ,Y i,.tj `t~J 1 ~..1
GR,N.11•1 A~':E FONu r:ALCi.j t.r'a,TIONS
~~equ ifed J m` sy =nmale i)+~i1 Cl Fitwr2. j~ ,v~:jl U ft'ie
= I mpenf ivu s Arcm x.,-5 i n.~ i"2 i n r41t. cu.ft.
G ransy sm-a 1~ I anci \-+o lu n i e 13 rcv iclr-- ci = 3. 1 cu. ft.
.
Dt=',Ykft'E LL R EGJI FE iv1ENT c-:; - 10 YEKR DES'. ICiN STOR M
flahAm u ni storage rp-ci ui rECi i_y BcA,v--q}O.R c.s = 2 C-4 ~-u . ft.
t~1u riE) er a r;c! ,,of D ny-i3yr-d Is R ei.~u in?c I = :ai n ijle
1 G+oubla
. .
T IME OF CONC%IENT RATI ON (n-jin utp-c)
I c t; cvr riancl 1 Tr fgutteCi r'. rp-e s ~
~
~ = L 1.34 t~l. Da
-71
L ; Vc'. 22 r . C,D
,
N (n) _ I.D. 4 E _ 0 01. CC. 0. a„aD
S (A) 0.015 n - , 0, Cr, + j, c' j 0. rfj
y = 0.016 0. Cci 0.00
Tr (A) = a. 4 1 ti! = U. 4-3 0. Co"i 0_ C~~1
T ^
! uti~ ~ !"f U ri'~ ~ i .
~
. ~ - s
' ~ ~J T~ ~ ; ~ s . •,-+1 0.
Ll i,~ _ = r
N(B) _ 0 ~ (A+E,) _ ~.~.41
` i. : B~i = 1..l
. ~ 1
L
TS1i3.3L.,) 1. ~~.j
r e~
_ t2 f1ri~;' _
! t. 6~') fT
Tc. itpi f= 7,_ ~ rt„~a d~~r;_~a T,_ ;~U~~r)
T c ~ +=ve t~ arn C I C:tft( LI
iff = 0.1 1 5
l_ i - n'-0 " 'Jf 'tf e l i lir c 1 F iow
~
.
N _f 6 ctb n far_:tn i rj. i i'v'LSda n fI f I ro- i,.4 f ri f ii'o1? mt c~G fi im 1=
S s- I .1 I_~ ~_r~ i t:~~+ ~ ft C I fl Ce.~
Tic i' ut#►~ r) = l.rn jLi ~ C =~fi:r i;f#.~L~.:;.'
.
,
~i i .'i.y.'.~r:'1 L~1►:q , ~ ! ~f c ! U~~' i~; c !(~Gh
'17 1= 3c-f r:,,r_~s -s =~1o~~►~ fru rrt rtpfie. h _
Z2 mee tsx--e r_ti rto ss s ici I _I a fi=~~ o cif i1it,--:h
f l _ dlGpti I 1JI flj.~~~ ~ ~ ~ ~u"Lter roaie, chH.:k NA t oalk'' ~,)Ah F!cto)
A tr-L = r; T-i +,.d ^ Z2 IN : 1 +Z21 .
'lr±~ettecl ppnmete r = E '~:i+ f 1k in ir~~ ~ ~ !L'Ia 1; =~in (atnf 1,C'1 )1
c! r~u fic R:~cli u~: _R= r~s-~~~~r~~ et-:el F'G si rri~e r ,
V. F." i o c; ftv _ 1. 4 '1+J Yn",T( 67 .5
~ I ow _ "19 I G+1~f ir-~a
n _ 0.0 16 fc+ r a:l?ha ft
s= longitucli noJ sia;,e i,f gutter
~ . .
1H-I4~- 2/15/?8
US' Departmer~ ~~f A n t~ _c~.~ 1 tt..~ r~ e
n °
a~_iA Coryservati.on 5e--:V; ce
DESl. GN i=1 O4,V-:. `a f-I EF. T
f ri►-
Trape:.cidal Ghannel 5ection
prepar-pd -fc?r-
E3 -
, s n
L Pi i V: ANE %OUN..i I, i-J'Ad.; i •I'!~ 1`.1 f '1"!] ~,1
~
DER iqr~ er d FZ. I-i ri HN G h ~ c'r:: Er-
.8f 91{ D c± t t-? ,"rJ_!._7 41
~ ~
/j•. ~i ni~
~ -L +L t. r'; - ~ S E. m t'. 1 b
~ n•.
A 4 ~ )k w ~ ~ . 1. aji'- ~ ~3+ ~
7• h R. '~r'• '1' 'I' ~ ~I~ r• .~i- r~ ~ i~ i . ij~.
~ ~ ~"'l f.:. ( 1. ~ ~ r^~ •~ti;~.
'F' ~
1. ? ~'t
~ - - - ~ . ~ i" 5
` I'; ' v r! i t.i 2 r• c- a n 5.-~ ~ ~ . 'r a
c ti G•=-t c 1. t'y` . 1 R~ C f S
e '2 o ~ T pS
a~? . ~ l~ ~ . ,i~, ( 1 ~i r~-• - _ O 4_} u ~
c= T T~+m :A., a. c1 th = c'? p x~> ~f t d
Dr? pth - l, ) „ ' I• 't.. _ '
7-la(A)
V •
/ ' .
Lxhibit 7-3: I'ermissible velocity for vegetation-linej waterways and
outlets. 1/ (Washington State Supplcmcnt)
. ~
I:roti i on Erosion ~ resistajtt susceptible
Slopc? soi lti soils
Cover rangc "K" 1es, than .33 "K" greater than .33
~ ( ( t j; (ft/sec)
bentgrass 0-5 g 6
r.:caaow foxcail s-lo 7 S
crecning foxtail over 10 6 q.
chewings, red, hard and sheep
t'escues
Kcntucky bluegrass
smooth bromc 0-5 ? 5 ~
t; ll fescue ' 5-10 6 4
timot?sy over 10 S • 3 -
orchardgrass . T~ubcscent; intermediate,
t hi c}:spike, strcambank :-ccd canarygrass U-S 3/ S 4
- S -10 4 3
c;-cstcd hheatgrass C
Si bcTian N•heatgrass Ve:-cnni31 r}•cgrass
::1v1;:a1 rycgrass 4/ 0-5 3/ 3.5 . Z. 5
- '
~u~:a~t~,rass 41
Srains A/ 1' Use velocities exceeding 5 feet per second only where good stands and
}~rorer maintenaiice can be obtainea. ~
,
Do not use on slopes steeper than 10 percent exccpt for revegetated side
slones in combination with a stene or concrete center section.
Do not use on slopes steeper than S percent except for vegetated side
sloaes in combination with a stone, concrete, or highly resistant
vcgetative center sectian.
.
,1nnuals--uae on less than 5 pcrcent slopes or as Lemporary covcr until '
l)crcnanent cover is established.
SC:S-1Vi-January 1982 Erhi Supplement
T
d I;
~
- - i S P O K A N E ' C O LI N~ 7' Y
OFFICE OF THE COUNTY ENGINEER • A DMSION OF TFIE PUBLIC WORKS DEPARTMENT
Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director
August 17, 1994
Randy Hahn, P.E.
Hahn Engineering
SUBJECT: SP835X - Pond Revisions at 4th Ave./Skipworth Road
lst Review
Gentlemen:
A review of the road and drainage plans for this project has been accomplished. Areas of
concern to us are indicated in red on the attached prints. Please make the corrections and
resubmit them to this office in order that the review process may proceed. When the nlans are
resubmitted, mark all chanLyes on the revised nrint in color.
If you have any questions about this review, please contact us at 456-3600. Thank you.
Very truly yours,
Ronald C. Hormann, P. E.
Spokane County Engineer
av P.e•
Edward J. P 9r., P. E.
Plans Review Engineer
encls: Plans (1 set)
Calculations (1 copy)
Comments (2 pages)
cc: project file
reviewer (comments only)
1026 W. Broadway Ave. • Spokane, WA 99260-0170 •(509) 456-3600 FAX: (509) 324-3478 TDD: (509) 324-3166
1 {
INUIELvEEw CoNavENTs
SPOKANE COUNTY
DIVISION OF ENGINEERING & ROADS
1026 W BROADWAY, SPOKANE WA 99260-0710
PHONE (509)456-3600 FAX (509)324-3478
REVIEW 2 REVIEWER: Ed Parrv
PROJECT SP835x DATE: 17 August 94
PROJECT NAME: Pond "A" Revisions
COMIVIENTS REMAINI.NG FROM PREVIOUS REVIEWS
lst Review
2. The swale slope needs to be a minimum of 3:1. The swale slopes need to be shown and verified by
actual ground elevations being shown. (need to show ground shots at least at tbe angle points in the
swale bank li.mits; interpolated shots from pavement return edge indicate slopes 2:1 at south
edge of swale)
3. The existing drainage easement is not large enough to handle your proposed layout for the swale.
The property owner will have to give a separate easement for your proposed plan change if it is
approved. (need to provide legal description of additional easement needed)
4. The drywell cannot be easily reached by County maintenance personnel and their cleaning equipment
in its present location. We will require a separate gravel access road or relocation of the drywell to an
acceptable location. (the bulge in the swale configuration needs to be deleted, so that maintenance
equipment can pu11 in parallel to the swale edge. Add "to C/L of drywell" to the 8' dimension note)
COIVIMENTS RESULTING FROM REVISED PLANS/CALCULATIONS IN THIS SUBMITTAL
1. Indicate station & offset for culvert ends
2. Indicate pond floor elevation
3. Indicate pond floor dimensions
4. Indicate grate station, offset, elevation
5. Plastic pipe of any sort needs the have end protection provided
6. PVC pipe will have << 1 foot of cover at vehicle access; PVC typically needs at least 3' of cover,
unless special bedding is specified. pipe placed at less than 1' of cover is typically specified as ductile
iron
REVIEW COMM:ENTS Page 2 of 2
17 August 94
PROJECT # SP835X
REVIEW # 2
7. Provide erosion protection at floor of pond - see attached for pad sizing & gradation information
8. Calc sheet:
a. "n" _ .010 for PVC
b. TW elevation for the pipe is the greater of either the normal depth of flow, the critical depth,
or the depth in the pond at the design storm.
c. Max HW is determined from the greater of that calculated by inlet control, outlet control (per
HEGS), or from backwater calcs
d. Length scales at closer to 28'
e. Based on swale configuration, the anticipated maximum depth in the pond will be < 0.9'
f. The entrance condition for a PVC pipe without a headwall more closely resembles a projecting
thin edge, similar to CMP
9. Calcs originally submitted need to be revised. (see attached)
a. The bowstring model used is not appropriate for sta.ndard swale configurations - it is intended
only for design of underground gravel gallery facilities
b. Ditch slope slopes yield Z1 = 3 and Z2 = 2.5
c. d(flow depth must be adjusted so that Q= CIA and Q(est.) agree closely - typically to ±
0.01 cfs
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. ~ BOWSTRZNG METHOD (TEN YEAR STORM DESIGN) PRqJECT: SP 835--93
DETENTION BASIN ~~~~GN BA5IN= Al,
REVIEWER = PREB~E
~L-L-S-?TZOPOSED DATE = lO-Oct--93
NUMBER OF DRY W
_,,,Q-RS1ng1e (typ ~ aou~le B
220 Po nd f Y c~or ar ea ~
Ta al Ar-ea (calc.) (see H1 ) 1.41
Tim ~,Of Conc o ( calc . ) (see H1 ) 36.
Compos' -e "C " (calc,) ( ~~e Hi) .288
Tim,e a f 36.27
Area (Acres ) 1.41
C' Fac tor 0_ 28
Impervious Area ( sq . ft~) 3200
Voiurr~~ Provided (cu. ft. ) 208~ 135 _ 1 s1--arm (tot 32S
sul"face= 325
ulg. 0
Outflow (CTS) 0 _0018-322 0 1
Area C" Factor 0_40
= = = = = = = =;!f = = = = ===m-_ = = = = = = =
#2 #3 44 #5 t±6 #7
Time Time Intensity 0 dev_ V in V out Storage
Inc _ I nc .
~ ~cfs} (cu_ f~._ ~ ~cu. ft_ ~ ~cu_ f~._ }
{mir~. ) (sec. ) ~.~t~_Ihr _
(#1*b0) (Dutlf_*-42) ~45-#61
~36i272176. 470~-$9 O. 35 1030 2180_ ~0" -11 51
5 300 3 _ 18 1_ 27 509 300_ S5 208
10 600 2.24 0.89 717 582 _ 78 134
is 900 1.77 0.70 850 716.13 13 3y
20 1200 I_ 45 0 . 58 9 ? r3 795_ 08 133
25 i50o 1_ 21 0_ 48 968 835, 63 132
30 1800 1_04 0_41 998 866.57 132
35 2100 0.91 0,36 1019 887 _92. 1a1
40 2400 0.82- 0.33 1025 894_0-~ 131
45 2700 0.74 0.29 1013 883 . 00 130
50 3000 0.63 0.27 1012 882_ ~9 1~0
ss 3300 0.64 0_ 25 1029 900.02 129
60 3600 0.61 0.24 1054 925.16 129
65 3900 o _ 60 0.24 lice 980.08 128
70 4200 0.58 0_ 23 1140 1012,9~ 127
75 4500 0.56 0.22 1168 1041. 04 127
so 4800 0_53 0.2JL 1169 1042_31 126
as 5100 0,52 0.21 1209 1082_90 1 '2` 6
90 s400 a -so 0_ 2n 1222 1096. 66 125
95 5700 0_ 49 0.20 1256 1131.28 1-1.15
100 6000 0_48 0.19 1288 1163. 51 124
DRAINAGE POND cwLcuLATIoNS
Required grassy swale pand storage volume
- Imper'vIous Area x S in./ 12 in./ft. = 133 cu. ft.
pr nvideci = 135.1 cu _ ft a
DRYWELL REQUIREMENTS 10 YEAR DESIGN STORM
Max imum star age requ i r ed by Bawstr ing = 208 cu. f L
1 .
- • TzME o~ ~ONcENrRArION (minutes)
. Tc (over la nd ) Tc (Swa le) Ar eas "C "
~Ct = 0, 15 L2 = ~~O 1.3~4 c~ .30
ZI - 0.C~7 0_90
LI(A) = 160 Z2 = 33 0.00 0.00
N( A) - 0.4 B ~ o 0.00 0.00
S( A) - a.aa.S n 0.3 0_00 10.00
s - 0~0 0_00 0y00
Tc (A) = 6.41 0.00 0.00
TotaJ. A Comp "C"
0 Tc (gu) = 25_49 ~ 1.41
N( e~) o
S(B) = 0 rc( A+E3 6.41
.~4 ~
Tc (B) = 0.0
Tc( to . ] 31_ 90 Q( 2.05
z ntens? ty 0_ 99
A = B _ 25
W p _ 33.0151
R 0_ 2499
k1 = 0.25
7c ~ totai) = 7c ~ over'land ) + Tc (gutter ~ Tc~ ciu j = 2S . 49
Tc (ouer land ) = C t-*( ~~*N/S"~ ;Q( es l:. 2_ 05
C t = 0.15
Ll =Leng~h a#= Over land Flow Hoiding = 1-3. 54
N factar of averland fi-ow (_4 for average grass cover)
5 ~ ave:-age slope of over land f low
7c (gutter ) = Length (ft. )f Vel0ci ty Isec _ )l60
B= Bottom wxdth caf gutter ar ditch
Z1 - itiverse of cross slope one aa° ditch
Z2 - ? nverse of crcrss slope f.wo o-41:: ditch
d~depLh of flow in gutter i~~t:,mate, check est.imate wi-~~ F~~~ ~
Area = d*B+d-2/2*(71+Z2) .
Wetted perimeter = B*d+~ ~~s-in(atn(1/Z1 ))+l/si. n( atn(I/Z2))-)'
Hydraulic Radius = R= Area/Wetted Perime-ter
Velacity = 1 .486/n*R~ .66?~s-.5
Flow = Velocity*Area
n - 0.016 for asphalt
s~ 1 o tigi tudi na1 s lo~~ ~~tter
Floor ou~.flaw = ( .36"depth/hr. . per sq _fth floor 1 ft depth/12" 1
_ 0.00000833 c-Fs per sq_ l't _ of floor area
, - KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL
TABLE 4.3.6A ROCK PROTECTION AT OUTFALLS '
Discharge Velociry REQUIRED PROTECTION
At Design Flow (fps)
Greater Less than Minlmum Dimensions
than or equal to
Type Thickness Wfdth Length Height
0 5 Rip Rap' t ft. Dfameter 8 ft. Crown
+ 6 ft. or 4X Dia. + t ft.
whichever is
greater
5 10 Rip Rap*'' 1 ft. Diameter 12 fi. Crown
+ 6 ft. or 4X dia. + 1 ft.
or 3X dia., whichever is
whichever is greater
greater
10 20 Gabion Outfall t ft. (As required) (As required) Crown
+ t ft.
20 N/A Engineered Energy Dissipator Required
* Rip rap shall be in accordance with section 9-13. t of the WSDOT/APWA Standard Specifications.
Rip rap to be reasonably well graded with rock gradation as follows:
Passing 8 inch square sieve 100 °~6 or Maximum stone size 8"
,
Passing 6 inch square sieve 40-80°0 or Medium stone size 6'
Passing 2 inch square sieve 0-10g6 or Minimum stone size 2"
Rip rap to be reasonably well graded with rock gradation as follows:
Maximum stone size 24" (nominal diameter)
Median stone size 16"
Minimum stone size 4"
Note: Rip rap sizing governed by side sJopes on ouilet channel, assumed to be A-3: t.
4.3.6-3 1/90
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REVIEW C OMAIENTS
SPOKANE COUNTY
DNISION OF ENGIIVEERING & ROADS
1026 W BROADWAY, SPOKANE WA 99260-0710
PHONE (509)456 -3600 FAX (509)324-3478
REVIEW 2 REVIEWER: Ed Parrv
PROJECT SP835X DATE: 17 August 94
PROJECT NAIVIE: Pond "A" Revisions
CONIlqENTS RETMAINING FROM PREVIOUS REVIEWS
1st' eview
. The swale slope needs to be a minimum of 3:1. The swale slopes need to be shown and verified by
actual ground elevations being shown. (need to show ground shots at least at the angle points in the
swale bank limits; interpolated shot.s from pavement return edge indicate slopes = 2:1 at south
edge of swale)
3 ~The existing drainage easement is not large enough to handle your proposed layout for the swale.
'rhe property owner will have to give a separate easement for your proposed plan change if it is
approved. (need to provide legal description of additional easement needed)
~4! The dr well cannot be easil reached b Coun
L Y y y ty malntenance personnel and their cleaning equlpment
in its present location. We will require a separate ;ravel access road or relocation of the drywell to an
acceptable location. (the bulge i.n the stivale configuration needs to be deleted, so that maintenance
equipment can pull in parallel to the swale edge. Add "to C/L of drywell" to the S' dimension note)
rt COMMENTS RESULTING FROM REVISED PLANS/CALCULATIONS IN THIS SUBMITTAL
~L. Indicate station & offset for culvert ends
~
6: I
ndicate pond tloor elevation
.I
Indicate pond floor dimensions
~
04:~' Indicate grate station, offset, elevation
Plastic pipe of any sort needs the have end Protection Provided
PVC pipe will have << 1 foot of cover at vehicle access; PVC typically needs at least 3' of cover,
unless special bedding is specified. pipe placed at less than 1' of cover is typically specified as ductile
iron
REVIEW COMIVIENTS Page ? of 2
17 August 94
PROJECT # SP835X
REVIEW # 2
~
i ~~1 %
P'rovide erosion ro~ection at floor of ond - see attached for pad sizing & gradation information
P P
~
~ Calc sheet: ~
~a. "n" .0 -0 for PVC
~ v for the pipe is the greater of either the normal dePth of flow, the critical depth,
TW ele/ tion
~r the d0--pth in the pond at the design storm.
c. a~ }HW is determined from the greater of that calculated by inlet control, outlet control (per
H or from backwater calcs
d. ength scales at closer co 28'
e. ased on swale configuration, the anticipated maximum depth in the pond will be < 0.9'
~
. The entrance condition for a PVC pipe without a headwall more closely resembles a projecting
thin edge, similar to CMP
~
Calcs originally submitted need to be revised. (see attached)
aoC-'The bowsuing model used is not appropriate for standard swale configurations - it is intended
~nly for design of underground gravel aallery facilities
4#6~jDitch slope slopes yield Zl = 3 and Z2 _ 2.5
~ d(flow depth must be adjusted so that Q- CIA and Q(est.) agree closely _ typically to +
0.01 cfs
,
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D~TENTION BASZN DE~~GN BF~~IN= A"
J REVIEWER= PREB~LE
NUMeEP, OF DRYW_ELL-S`P~F~GP4SEE) _ DATE= ~.0
.0~i ~t~p 1 DOUble ( t`/~~ a 1,,
220 Pc+ nd f 100r ar ea
ro~a~. Ar~:a see ~I1) I ~41
Timc,of Conc. ( calc . ~~e H1 ) 36 .~Compos-i-t3 "C c a! c - ~ { see H1 ) _ 28
I 1 qe oT 36_27
Area (Aci e5 ) 1_41
C' FaC tor
imperV t Ous Alrea (Sq. F 3200
VoZume °rovi ~eci ( ct; . -ft . ) 208 = 13 5 .I s~rarm ( t o~. 32S
,
UT-ka ce= ~
out-:~: l ow ~ r ; s ) 0 . 0 18"-"33 2 11) =
Araa C°' ;:ac~.c r 0_40
~.1 4 ? 7
f y~ y-~{~+,r-~pl1 AI 1 i 1 i G 1 I I 1~ ~ I 1 4... ~ Fp~ i J~ 4~ kw G V . j'f ~ 1 I '•f •ti+.,.c h, 4J Y G~
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1 yr 1
U
w
~ 91~ 1 I~ 11 _ f k k ~ . ~ ~ 4 ~ s f ~ cu , ir k~ U . 'J v . i t..
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~
r w 36- 27 2 1 ! 6 . 4 0.25 i03t.!
~ 300 3.18 1.27 509 :0 0 208
000 1-1-2 _2 4 0 _ 89 -17 582 . r~ 8
900 1,77 G _i0 850 %w6
~
1 ~0 0 1 _ 4S 0.58 `6 e V :
0.48 -~68 5.6~
~
'i .oz? _41 '~~r~
~ U .~6 ~ ~ -~-c~- 'D~ ~w ~1~~ ~.~.~y s
4,C 4,~100 0_ 82 0 .334 r- 02S 0 4L . J~ ~
`?70~7 0.7~? o #013 8~3 ~
2000 ~8 0.27 10 1 2 8 8 -
r
SS 3u00 0 . 6-i ~ . -5 1-020 14 0 0 -0 2 °
6~7 360t~ 0 , 6~. 0_ 24 -054 ?25 . ~6 1~0
-~~0 4 0.60 0.24 iy c38 `1~?(~ . 4::~3 148
~0 ~200 0 _ 158 0 . i -t 40 1 ~ . ~5 ~ 27
75 4500 0.56 0.22 1-69 i0~~ _04 1~~
80 4800 0 . S3 0.21 i169 i0 zi, 2 - -3 1 ' 126
85 si4o 0,52- 4 _21 1209 108-4.`=o i~S
94 5400 0 _S 0 0_214 1222' ~096 .~6 125
5700 0.49 0 . ~ ~56 -11 . ~3 1~5
1 ~`iV ~~OC) 0_ 48 0
DRr'1-,.1.NF-',GC PON❑ CALCUL:h, I 1~~~
~~~quil3'ed. graSay swa} e po1~~ st-orage VolG1me
- Irnperv IOuS Ar ea x . 5D n . i 1~ .3, -3 tt -
ptJoV1ded=
DR`fWEL4 rREQUIREM~NTS - 10 YEAR DESIGh! ST~RM
Max i-mum storage requ:red by Bowstring ~ ~0 6 cu . ~ .
TIME OF CONCENTRATION (minutes)
Tc ( over land ) Tc ( swale ) Areas "C "
Ct = 0.15 L2 = 380 :.34 0.30
Z1 3(0.07 0_ 40
L1( A) = 160 Z2 3- 0.00 0.00
N( A) = 0.4 B= 0.00 0.00
S(A) = 0.01IS n = 0.3 0.00 0.00
s = 0. 0 0.00 0.00
Tc (A) = 6.41 d = 0. 0.00 0.00
Total A Comp "C "
L1( S) = 0 Tc ( gu 2S.49 0. 33
N( 8~) = 0
5( B~ _ 0 l L'` r-~-~ ~ - 6.41 Q=C X ! *A= `0 .46
.
T c ( 8; = 0.0
; c ( i o z . ) 31 .9 G Q( es z. ) _ ? _ p S;
~ n't°ns: ~.y
A = 8 . 25
WP = 3~ .0 15~
= 0.2499
~1 = o. 2 S
o Tc over_and) + Tc~ ' ;ur_c?r -?S
T..
i c (cv2r_Gnd ; = C ! ~ =~Ni 5,.~~ ~ _ . ~ ; ~ _ .
L' -o Over ± a n d Fj ow H anG
N= Jz--rici_on -acLO-, of: averland -!:.ow (.4 Tor- average grGss cover ;
S= averGce s 1 ope o ~ over 1 a nc! -;F_'ow
Tc ( gutt_t°r ) = LangLh ( -Ft . )/Veloc= ~y ( ft./sec . )/60
S=BoL tom w j dth oT guiter or di ~.ch
Z1 - inverse oT cross slope one o+ di ~ch Z2 =_i-iverse or cl-oss slope two o: ui tch
ca =deDc; -l O i il-OW _ il oUL t?1" ~ t?S ~_Tid LZ cheC k F_10W f
area
Wetted rer:meter = 3~d+( ~./sin( atn~ i/Z1 ))+li sin( aLn( 1; L? 1;;
Hydraulic 4adius = R= Area/Wetze-a Per i-metar
veloc i ~y = I . 486/ n*R'. o67's~ . ~
Flow = ve? vc;L~y=KAraa
n = 0.01"D ~ or aspha.L r-
s= long~ :udi na j slope o i gu tt°r
F 1 oor ou~ ~ _ow = ( . ".'36 "depLh/hr . par sq . ~ t . ~ ? oor .::POLi"1/~
_ 0 .0000083)"73, ,-,fs per sq .:t - 0 i r' ~ocr area
KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL
TABLE 4.3.6A AOCK PROTECTtON AT OUTFALLS '
Discharge Velociry REQUtRED PROTECTION
Ai Design Fiaw (fps)
Greater l.ess than Minimum Dimensions
than or equal io
type ThicScness Width Langih Height
0 5 Rip Rap= 1 ft. Otameier 8 ft. Crown
+ fi ft. or 4X Dia. * tIt.
whichever is
greater
5 10 Rip Rap** 1 ft. Diameter 12 ;i. Crown
* 5 ft. or 4X dia. T t ft.
or 3X dia., whichever is
whichever is greater
greater
10 20 Gabion Outfail 1 fit. (As required) (As required) Crown
+ 1 ft.
20 N/A Engineered Energy Dissipator Required
* Rip rap shall be in accordance with section 9-13.1 of the WSDOT/APWA Standard Specifications.
Aip rap to be reasonably well graded with roclc gradation as follows:
Passing 8 inch square sieve t 00°6 or Maximum stone size 8'
Passing o inch square sieve 40-60961 or 1Aedium stone size o"
Passing 2 inch square sieve 0-10% ) or 1Ainimum stone size 2'
Rip rap to be reasonably well graded with rock gradation as `ollows:
Maximum stone size 24' (nominal diameter)
Median stone size 16'
Minimum stone size d"
Note: Rip rap sizing governed by side slopes on outlet channel, assumed to be ,-3:1.
4.3.6-3 1/90
~
~
. - ~
S P O K A N E O U N T Y
OFFICE OF THE COUNTY ENGINEER • A Dtvistotv oF THIE PUsUc Wottxxs DEPAtTmErrr
Ronald C. Hormanri, P.E., County Engineer Deruiis M. Scott, P.E., Director
August 17, 1994
Randy Hahn, P.E.
Hahn Engineering
SUBJECT: SP335X - Pond Revisions at 4th Ave./Skipworth Road
I-st Review
U04
Gentlemen:
A review of the road and drainage plans for this project has been accomplished. Areas of
concern to us are indicated in red on the attached prints. Please make the corrections and
resubmit them to this office in order that the review process may proceed. When the Dlans are
resubmitted, mark all chanees on the revised Drint in color.
If you have any questions about this review, please contact us at 456-3600. Thank you.
Very truly yours,
Ronald C. Hormann, P. E.
Spokane County Engineer
~ , c ~ z.
Edward f. P r., P. E.
Plans Review Engineer
enc(s: Plans (1 sec)
Calculations (1 copy)
Commencs (2 pages)
cc: project tile
.',~viewer (comments only)
1026 W. Broadwav 3ve. • Spokane, WA 99260-U170 •(509) -E56-3600 FAX: (509) 324-3478 TDD: (509) 324-3166
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FAX COVER SHEET 1 A~j
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Spokanc Counly .Ciigineci s Or1`ice - 1 hircl Iilaor I ax 11324-3478
1026 W 13R0AllW/\Y S1'OK11,NL, W/\ 99260 - 1'IIONr #(509) 456-3600
DATE: r I AM q4- FAX f6-7 -
-ro: kAJI)4 f-mtj
COMPANY: j#/ENN pJ lar-JeLmcN4
CI7'Y / STATC:
NUMBER DF PAGES (1NCLUDING COVER SHEET):
_
FRO M:
rMESSAGE /SPECIA.L INSTRUCfiION:
&4Gr-1/hr5 AU W*01 F24?- -fiNf--up.
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S P O K A N E o; C O U N T Y
- ,
OFFICE OF THE COUNTY ENGINEER • A DNISION OF THE PUBLIC WORKS DEPARTMENT
Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director
August 17, 1994
Randy Hahn, P. E.
Hahn Engineering
SUBJECT: SP835X - Pood Revisions at 4th Ave./Skipworth Road
V Review
71404
Gentlemen:
A review of the road and drainage plans for this project has been accomplished. Areas of
conce:n tc us arP indicated in red on the attached prints. Please make the corrections and
resubmit them to this office in order that the review process may proceed. When the nlans are
resubmitted, mark all chanees on the revised print in color.
If you have any questions about this review, please contact us at 456-3600. Thank you.
Very truly yours,
Ronald C. Hormann, P. E.
Spokane County Engineer
aizv/ ~ ~
Edward J. Paxry r., P. E.
Plans Review Engineer
encls: Plans (1 set)
Calculations (1 copy)
Comments (2 pages)
ccVroject file
reviewer (comments only)
1026 W. Broadway Ave. • Spokane, WA 99260-0170 •(509) 456-3600 FAX: (509) 324-3478 TDD: (509) 324-3166
REVIEW COMMENTS
SPOKANE COUNTY
DNISION OF ENGINEERING & ROADS
1026 W BROADWAY, SPOKANE WA 99260-0710
PHONE (509)456-3600 FAX (509)324-3478
REVIEW 2 REVIEWER: Ed Parrv
PROJECT SP835x DATE: 17 Auizust 94
PROJECT NAME: Pond "A" Revisions
COMMENTS REMAINING FROM PREVIOUS REVIEWS
lst Review
2. The swale slope needs to be a minimum of 3:1. The swale slopes need to be shown and verified by
actual ground elevations being shown. (need to show ground shots at least at the angle points in the
swale bank limits; interpolated shots from pavement return edge indicate slopes = 2:1 at south
edge of swale)
3. The existing drainage easement is not large enough to handle your proposed layout for the swale.
The property owner will have to give a separate easement for your proposed plan change if it is
approved. (need to provide legal description of additional easement needed)
4. The drywell carunot be easily reached by County maintenance personnel and their cleaning equipment
in its present location. We will require a separate gravel access road or relocation of the drywell to an
acceptable location. (the bulge in the swale configuration needs to be deleted, so that maintenance
equipment can pull in parallel to the swale edge. Add "to C/L of drywell" to the 8' dimension note)
CONIMENTS RESULTING FROM 1tEVISED PLANS/CALCULATIONS IN THIS SUBMITTAL
1. Indicate station & offset for culvert ends
2. Indicate pond floor elevation
3. Indicate pond floor dimensions
4. Indicate grate station, offset, elevation
5. Plastic pipe of any sort needs the llave end protection provided
6. PVC pipe will have << 1 foot of cover at vehicle access; PVC typically needs at least 3' of cover,
unless special bedding is specified. pipe piaced at less than 1' of cover is typically specified as ductile
iron
REVIEW COMIVMNTS Page 2 of 2
17 August 94
PROJECT # SP835X
REVIEW # 2
7. Provide erosion protection at floor of pond - see attached for pad sizing & gradation information
8. Calc sheet:
a. "n" _ .010 for PVC
b. TW elevation for the pipe is the greater of either the normal depth of flow, the critical depth,
or the depth in the pond at the design storm.
c. Max HW is determined from the greater of that calculated by inlet control, outlet control (per
HEC-5), or from backwater calcs
d. Length scales at closer to 28'
e. Based on swale configuration, the anticipated maximum depth in the pond will be < 0.9'
f. The entrance condition for a PVC pipe without a headwall more closely resembles a projecting
thin edge, similar to CMP
9. Calcs originally submitted need to be revised. (see attached)
a. The bowstring model used is not appropriate for standard swale configurations - it is intended
only for design of underground gravel gallery facilities
b. Ditch slope slopes yield Z1 = 3 and Z2 = 2.5
c. d(flow depth must be adjusted so that Q= CIA and Q(est.) agree closely - typically to ±
0.01 cfs
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BOWSTRING METHOD (TEN YEAR STORM OESIGN ) PROJECT = SP 835-93
DETENTION BASIN DESIGN BASIN= A"
REtiJ I EWER = PREBLE
NUMBER OF DRYWEL-L-S-PVOPOSED OATE = 10-Oct-93
,-0• Si ngZe ( t,yp 1 Double (typ' B)_\
220 Pond floor area
To~al Area (calc.) (see H1) 1.41 ~
Time,of Conc.( calc.) (see H1 ) 36 .
ComPos~c-e "C " ( calc. ) (see H1 ) .28
T i qe o f C o c. (-fn-i 36 . 2 7
Area ( Rcres ) 1.41
C' Factor . 0_28
Impervious Ar?a (sq. fit_) 3200
Volume Provided (cu. Tt 208 = 135 . 1 storm ( Lot 325
sur face : 325
u/g= U
Out flow ( c i s) 0.0018332 0 1
area ~ C" Facior 0.40
~-#1 #2 ;#3
i ime Ti me Tntensi'Cy 0 dev. V in V vut_ Storage
Tnc. Inc.
( mi n . ) ~ 5ec . ) (i n . /hr . ) ~ cfs ) C cu _ rt . , . ' )
} `cu cu . -F t .
( #Z*60 ) ( N=^C* Ou i. 4 5-#C ;
36 . 27 2176.47 0.89 0_ 35 2030 2180.46 ^-115i
5 300 3.18 1.27 509 ~00_5S 208
20 600 2.24 0.89 717 S82.78 134
2 s 900 1.77 0.70 850 716.13 133
24 1240 1_ 45 0. 58 928 7,--/15 8
25 1500 1.21 0.48 y68 335.63 132
30 1800 1.04 0.41 ; G8 366. 57 1
35 21,00 0.011 0.36 ~0 24 88/.'~~ 131
40 2400 0_82 0.33 2025 394 .0/ 131
45 2700 0.74 0.29 1013 883.00 130
5o 3000 0.68 0.27 1012 882.59 130
55 3300 0.64 0. 25 1029 900 . 02 1~9
60 3600 0.61 0_ 24 1054 925 . 16 129
65 3900 0.60 0.24 1108 980 . 08 128
70 4200 0.58 0.23 2140 10121 .95 127
75 4500 0.56 0.22 1168 1041.04 127
80 4800 0.53 0.21 1169 1042.31 126
85 5100 0. 52 0.21 1209 1082.90 126
90 5400 0_50 0_20 1222 1096.00 125
95 5700 0.49 0.20 1256 11_31 .28 127"5
100 0000 0.48 0_ 19 1288 1161-31.5I 124
DRAIiVAGE POND CALCULATIONS
Required grassy swale pond storage vnlume
= Impervious Area x.5 in.i 12 in./ft Icu . ~ t.
pT-ovided : 2 ~5 . 1 cu. ft.
DRYWELL REQUIREMEVTS - 10 `fEAR DESIGN STORM
Ma x i mum stor age r equ i r ed by Bowstr i ng = 208 cu.►`t _
TIME OF CONCENTRATION (minutes)
Tc ( over Iand ) Tc ( swale ) Areas "C "
' Ct = 0.15 L2 = 33~ 1.34 0.30
Z1 = 0. 07 0_ 90
L1( A) = 160 Z2 = 0.00 0.00
N(A) = 0.4 B= 0 0.00 0_00
S(A) - 0.015 n = 0.3 0.00 0.00
s = 0 _0 0.00 0.00
,
Tc (A) = 6.41 d = 0.5 0.00 0.00
To~al A Comp "C"
L 1( 8) = 0 Tc ( gu ) = 25 . 49 1.41 0.33
N( B") = 0
S(B) 0 Tc( A+B ) = 6.41
(1=C x I *A= 0 . 46
Tc (B) = 0.0 ~
Tc( ~ot . ) 31.90 Q( est ~ .0 5
Intensi~y 0.99
A = 8 .25
WP = 33.0151
R = 0 . 2499
V = 0.2S
-rc ~toi.al Tc (I overland j. Tc i. gur_L?1" ; Tc~ zu j= LS .4-,'
i c (overlGnd"= ;O~; esz)= 2_U5
Ct = 0.
Li = LengLh or Over land F1 ow Ho ~dling = 1~ _54
N= Tric~-;on -icactor oi~ overland -!-!ow (.z~ to7- average grGss cover }
S= average slope or nverland flaw
Tc ( gUtter ) _ Length ( ft. )/veloci ty ( Ilct./sec . )/00
8= 8ot4k---om width of gutter or d~ ~ch
Z1 = inverse 01 cross slope one o~ di ~ch
Z2 = inverse of cross slope two o;ditch
d = depch of i low in gut :pr ( esz:ma~.e , check estimate wi_'.n Flow j
Ar ea = d*6+d~2/2*( ' 1 +Z2 )
Wetted per i-meter = 8*d+( 1/sin( atn( 1/Z1 ))+1/sin( atn( 1/Z2 ~
Hydraulic Radius = R= Area/Wetted Perjmeter
Velocity = 1 .486/n*R~ _667*s-.5
Flow = Velocity*Area
n = 0.016 ror asphalt
s=long:i Ludi na i slope ofi gutter
r loor ou~ flow = ( .36"depth/hr. per sq. fit . i-100r 1 f~. dlepth/1~" )-K (1
= 0.00000833 ef s per sq. y t. ofi i'10o r a r ea
KING COUNTY, WASHINGTON, SURFACE WATER DES-IGN MANUAL
TABLE 4.3.6A AOC3C PROTECTION AT OUTFALLS
Discharge Velocity REQUIRED PROTECTION
At Design Row (fps)
Greater Lsss than Minimum Dimensions
than or equal to
Type Thickness Width Lsngth Height
0 5 Rip Rap' 1 ft. Olameter 8 ft. Crown
+ 6 ft. or 4X Dia. + 1 ft.
whichever is
greater
5 10 Rip Rap*' 1 ft. Diameter 12 ft. Crown
+ 6 ft. or 4X dia. T 1 ft.
or 3X dia., whichever is
whichever is greater
greater
10 20 Gabion Outfall t ft. (As required) (As required) Crown
+ 1 ft.
20 N/A Engineered Energy Dissipator Required
* Rip rap shall be in accordance with section 9-13.1 of the WSDOTiAPWA Standard Specifications.
Rip rap to be reasonably weil graded w'rth rock gradation as follows:
Passing 8 inch square sieve 100 %1b or Maximum stone siZe 80
Passing 6 inch square sieve 40-FO°0 or Medium stone size 6'
Passing 2 inch square sieve 0-10°'6 or Minimum stone size 2'
Rip rap to be reasonably well graded with rock gradation as foilows:
Maximum stone size 24" (nominal diameter)
Median stone size 16'
Minimum stone size 4"
Note: Rip rap sizing governed by side sJopes on outlei ctiannef, assumed to be ti 3:1.
4.3.6-3 1/90
Hahn Engi'neenng, Inc.
North 8623 Diaision Street • Suite B
Spukrtne, Wnshington 99208
(509) 467-I550
FAX (509) 467-8189
August 15, 1994 RECEIVED
AU G 1'7 IP°4
Mr. Ed Perry
Spokane County Engineers ~KANEC~UNTYENGINEER
Public Works Huilding
W. 1026 Broadway
Spokane, WA 99260
RE: SHORT PLAT 835-93 (DOROTHY HARDING)
OUR FILE M0. 93H134
Dear Ed:
Pursuant to my conversation with Bill Hemmings, I am submitting
to you the revised swale configuration for SP 835-93 located at
the corner of Skipworth Rd. and 4th Ave. in Tract 1.
Bill's main concern was the access fior the maintenance crew to
the drywell. As you can see by the attac hed drawing, we have
reconfigured the swale to allow access within 8' of the drywell.
This required reconfiguring the swale and installing a 12" PVC
drain pipe. I have attached the calculations for the 12" pipe
and as you can see, with a design depth of tF►e swale, the pipe
will carry an excess of 1.3 cfs whic h exceeds the design
criteria.
I am requesting an approval of the reconfiguration for
construction so that we may proceed with the construction of
Skipworth Road. Please note this project is in construction and
I would appreciate your immediate attention as we have men and
equipment on site waiting.
If you should have any questions, please do not he5itate to call.
Very truly yours,
HAHN ENG I NEER I tVG , I NC .
✓V < wa-,)
Randell G. Hahn, P.E. °
President
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Circular Channel Analysis & Design
Solved with Manning's Equation
Open Channel - Uniform flow
Worksheet Name:
Comment: 4th/skipworth
Solve For Actual Depth POC-6
Given Input Data:
Diameter.......... 1.00 ft
Slope 0.0312 ft/ft
Manning's n....... 0.010
Discharge......... 1.30 cfs
Computed Results:
Depth 4__ .2 ft ~
velocity . . . . . . . . . . . 62 s A&A, 01614f, .0~/r
Flow Area......... .17 sf
Critical Depth.... 0.48 ft
Critical Slope.... 0.0036 ft/ft
Percent Full...... 26.95 0
Full Capacity..... 8.18 cfs
QMAX @.94D........ 8.80 cfs
Froude Number..... 3.06 (flow is Supercritical)
Open Channel Flow Module, Version 3.21 (c) 1990
Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708
Circular Channel Analysis & Design
Solved with Manning's Equation
Open Channel - Uniform flow
Worksheet Name:
Comment: 4th/skipworth
Solve For Actual Depth
Cgf
Given Input Data:
Diameter.......... 1.00 ft
Slope 0.0312 ft/ft
Manning's n....... 0.025
Discharge......... 1.30 cfs
Computed Results:
Depth 0.44 ft
Velocity.......... 3.93 fps
Flow Area......... 0.33 sf
Critical Depth.... 0.48 ft
Critical Slope.... 0.0224 ft/ft
~ Percent Full...... 43.81 0
Full Capacity..... 3.27 cfs
QMAX @.94D........ 3.52 cfs
Froude Number..... 1.20 (flow is Supercritical)
Open Channel Flow Module, Version 3.21 (c) 1990
Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708
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KING COUNI'Y DEPARTMENT OF PUBLIC WORKS
Surface Water Management Division
BACKWATER ANALYSIS PROGRAM
Version 4.20
1- INFO ON THIS PROGRAM
2 - BWCHAN
3 - BWPIPE
4 - BWCULV
5 - BWBOX
. 6 - DATA-FILE ROUTINES
7 - RETURN TO DOS
ENTER OPTION
4
BACKWATER PROGRAM FOR ROUND/ARCH CULVERTS
ENTER: NUMBER OF CULVERTS
1
OUTFLOW CONDITIONS PIPE N0. 1- TAILWATER DATA:
1) SPECIFY TYPE OF TAILWATER DATA INPUT: S- SINGLE TW-ELEV.
F - TW/HW DATA FILE
s
2) ENTER: TW-ELEV
09.66
ROUND/ARCH PIPE INPUT CODING INFORMATION:
PIPE TYPE CODING:
1- CONC/SMOOTH BORE (n=0.012) 5- CMP ARCH (NEW GEOMETRY)
2- CORRUGATED METAL (n=0.024) 6- CONC/SMOOTH ARCH (OLD)
3- HELICAL CMP (n-fac varies) 7- CONC/SMOOTH ARCH (NEW)
4- CMP ARCH (OLD GEOMETRY) 8- ROUND (user sets n-fac)
ARCH PIPE CODING - EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH
15" 18"X 11" 17"X 13" * 42" 50"X 31" 49"X 33"
18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47"
30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52"
36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57"
INLET TYPE CODING:
1- CMP/PROJ. 4- CP SOCKET/PROJ. 7- CMAP/PROJ. 10 - OTHER (SEE
2- CMP/HDWALL 5- CP SQ.EDGE/HDWALL 8- CMAP/HDWALL FHWA REPORT
3- CMP/MITER 6- CP SOCKET/HIDWALL 9- CMAP/MITER HDS N0.5)
ENTER PIPE # 1: LENGTH(ft), DIA(in), PIPE-TYPE, OUTLET-IE, INLET-IE, INLET-TYPE
26, 12, 89 .1, $9 . 91, 1
ENTER PIPE # 1: LENGTH(ft), DIA(in), PIPE-TYPE, OUTLET-IE, INLET-IE, INLET-TYPE
26, 12, 1, 89.1, 89.9111
INFLOW CONDITIONS - OVERFLOW DATA AND UPSTREAM VELOCITY DATA:
1) ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE (NONE=O, BROAD-WEIR=1, SHARP-WEIR=2)
91.110
2) SPECIFY TYPE OF VELOCITY DATA INPUT: S- SINGLE VELOCITY UPSTREAM
V- VARY VELOCITY ACCORDING TO V=Q/A
s
3) ENTER: VELOCITY(fps) UPSTREAM
0
ENTER: QMIN, QMAX, QINCRE, PRINT-OPTION (STANDARD=1, CONDENSED=2, EXPANDED=3)
. 5, . 6, . O1, 1
PIPE N0. 1: 26 LF - 12"CP @ 3.1201 OUTLET: 89.10 INLET: 89.91 INTYP: 1
Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI
.50 .40 90.31 * .012 .30 .19 .56 .56 .30 .40
.51 .41 90.32 * .012 .30 .19 .56 .56 .30 .41
.52 .41 90.32 * .012 .30 .19 .56 .56 .30 .41
.53 .41 90.32 * .012 .31 .19 .56 .56 .31 .41
C_5T- _T_2 T~ * .012 .31 .20 .56 .56 .31 .42
.55 .42 -73 .33 * .012 .31 .20 .56 .56 .31 .42
.56 .43 90.34 * .012 .32 .20 .56 .56 .32 .43
.57 .43 90.34 * .012 .32 .20 .56 .56 .32 .43
.58 .44 90.35 * .012 .32 .20 .56 .56 .32 .44
.59 .44 90.35 * .012 .32 .20 .56 .56 .32 .44
.60 .45 90.36 * .012 .33 .21 .56 .56 .33 .45
SPECIFY: N- NEWJOB, F- FILE, S- STOP
s
KING COUNTY DEPARTMENT OF PUBLIC WORKS
Surface Water Management Division
BACKWATER ANALYSIS PROGRAM
Version 4.20
1- INFO ON THIS PROGRAM
2 - BWCHAN
3 - BWPIPE
4 - BWCULV
5 - BWBOX
6 - DATA-FILE ROUTINES
7 - RETURN TO DOS
ENTER OPTION
7
Stop - Program terminated.
C:\xzNGBw>cd\ps
C:\PS>ps
C:\PS>vp
C:\PS>echo off
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6 To use scole (2) or (3) project
_ 2~ 5 horizontollr to scole (I), then -
4 use siralqht inclined line throuqh
0 ond 0 scoles, or reverse a•
6
3 i1lustroted. r,6 r 6
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,R DE`PTH FOR
~ 12 - NEADWATE
GONCRETE P! PE CULVERTS
164 W1TH I NL CO NTRpL.,'I-
BUREAU OF PU6LIC ROA03 JAN. 19612~ ,3
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2000
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HW • _
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- IO O O Q? SUBMERGED OUTLET CUIVERT FLOWING fULL c,
~ J HW ° H4 hO-LSO
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. 800 _ 120 for outlet crown not submerqed, compute HW by •6
metho05 Cestribed in tne desipn proteCuro
600 - 108
.8
500 - 9g
I.0
400 _ 84
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, 300 - 72
- 6 6
200 - 60 <w 2
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100 Z~ lb OD F~` Q
~ 80%0 - 42 200 = 4
3 6 lb0~ A~O 5
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W - 30 '
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20 - 21 •
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HEAD FOR
CONCRETE PIPE CULVERTS
FLOWING FULL
BUREQU OF PUBLIC ROA05 JAN. 1963 n= 0.0 (G
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601NSTRING METNOD (TEN YEAA STOFIv9 DESIGN) PRO.ECT; SP835X TIME OF CONCENTFATION (minutes)
DETENTION BASIN DESIGN BASIN: pondrevislon
REVIEWER; Parry Tc (oaerhand) Tc (gutter) Areas "C" A°C
NUMBEROF DRYYdELLS PROPOSED DATE: 17-Aug-94
0 Single (type A) 1 Douhle (type B) Ct = 0.15 L2 = 380 1.34 0.30 0.402
Total Area (calc,) (see 1-11) 1.41 Zi = 3 0.07 0.90 0.063
Time of Conc. (calc.) (see 1-11) 26.16 L1(A) = 160 Z2 = 2.5 0.00 0.00 0
Composite "C"{calc.) (see H1) 0.33 N(A) = 0.4 B= 0 0.00 0.00 0
Time of Conc. (min) 26.16 S(A) = 0.015 n= 0.3 0.00 0.00 0
Area (Acres) 1,41 s= 0,016 0.00 0.00 0
C' Factor 0.33 Tc (A) = 6,41 d= 0.00 0.00 0
Impervlous Area (sq, ft.) 3200 ~Total A Comp "C"
Votume Provided 208; 147 storm; 783 Li(8) = 0 Tc (gu) = 19.75 1.41 0,33
Outflow (cis) 1 N(B) = 0 Tc(A+8) = 6.41
Area • C" Facta 0.47 S(8) = 0 Q=C*I"A= 0.54
Tc(tot) = 26.16 Q(est,) = 0.54
#1 #2 #3 #a #5 #6 #7 Tc (8) = 0.0 Intensiry = 1.17 +
Time Time Intensity Q dev, V in V out Storage 6 A= 1.6731
Inc, Inc, \WP = 4.5668
(min) (sec.) (in/hc) (cfs) (cu ft) (cu. ft) (cu ft) R = 0.3664
(#1*60) (A*C*#3) (Oulf."#2) (#5-#6) V = 0.32
Tc (totaD = Tc (overlanc) + Tc (gutter) Tc(9u) = 19.75
26.16 1569.64 1.17 0.54 1145 1569.64 -425 Tc (overland) = Ct" (Li *NJS "0,5) "0,6) Q(est) = 0.54
Ct = 0,15 i
5 300 3.18 1.48 594 300 294 L1 = Length of Overland Flow Holding = 13.54
10 600 224 1.04 837 600 237 N= ticd on facta ot overland flow (,4 tor average gass cover) n
15 900 1.77 0.82 993 900 93 S= average slape af overland Bow r
20 1200 145 0.67 1084 1200 -116 Tc (gutter) =Length (ft.)/Velocity (ft.lsec.)160 ,25 1500 1.21 0.56 1131 1500 -369 B= Battom wicRh of gtjtter a ditch '
30 1800 1.04 0.48 1129 1800 -671 Z1 = irNerse of crass sbpe one of ditch %
35 2100 0.91 0.42 1114 2100 -986 Z2 = irnierse of cross sbpe two of ditch p`
40 2400 0.82 0.38 1119 2400 -1281 d= depth of flow in gutter (estimate, check estimate with Flow)
45 2700 0.74 0,34 1113 2700 -1587 Area = d*B+d"2!2"(L1+Z2)
50 3000 0.66 0.32 1117 3000 -1883 Wettedperimeter = B•d+(11sin(atn(11Z1))+tlsin(afi(l1Z2)))
55 3300 0.64 0.30 1141 3300 -2159 Hydraullc Radius = R= ArealWetted Perimeter
60 3600 0.61 0.28 1173 3600 -2427 Velocity =1,486Jn"R^,667*s ^,6
65 3900 0.60 0.28 1237 3900 -2663 Flow = Velocity*Area '
70 4200 0.58 0.27 1277 4200 -2923 n= 0,016 forasphalt
75 4500 0.56 0.26 1311 4500 -3189 s= longitudinal slope of gutter
80 4800 0.53 0.25 1314 4800 -3486
85 5100 0.52 0.24 1362 5100 -3738
90 5400 0.50 0.23 1380 5400 -4020 2.o
95 5700 0.49 0.23 1420 5700 - 4 2 8 a r'
100 6000 0.48 0.22 1458 6000 -4542
DRAINAGE POND CALCULATIONS ZLZ ~ 'J~3•5
Required grassp svele pond storage volume x- 2
= Impervious Area x,5 in.l 121n,1ft, = 133 cu, ft
provided; 147 cu, R, OKI
ORYWELLREQUIRBdENTS -10 YEAR DESIGN STORM
Maximum storage required by Bowsfing = 294 cu ft .
provided: 783 cu ft OIC
Nu mber and type of Drywells RequUed = 0 Single 1 Double p, i= vo•~O~ ~dG -,~At.
Circular Channel Analysis & Design
Solved with Manning's Equation
Open Channel - Uniform flow
Worksheet Name:
Comment: 4th/skipworth
Solve For Actual Depth
Given Input Data:
Diameter.......... 1.00 ft
Slope 0.0312 ft/ft
Manning's n....... 0.010
Discharge......... 0.54 cfs
Computed Results:
Depth 0.17 ft
Velocity.......... 5.89 fps
Flow Area......... 0.09 sf
Critical Depth.... 0.31 ft
Critical Slope.... 0.0033 ft/ft
Percent Full...... 17.41 0
Full Capacity..... 8.18 cfs
QMAX C.94D........ 8.80 cfs
Froude Number..... 2.99 (flow is Supercritical)
Open Channel Flow Module, Version 3.21 (c) 1990
Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708
~ - -
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MEMO
T0: RANDY HAHN
FROM1 BILL HEMMINC3S AAr
DATEs AUOUBT 11, 1994
RE: PROPOSED LOT CHANOE t ~e( UCAJ
SHORT PLAT NO. 835
REGARDING THE ABOVE SUBMITTAL, YOU WILL NEED TO SUHMIT AN AGREEMEIVT
TO PAY FEES TO COVER THE COST OF OUR REVIEW TIME.
WE HAVE COMPLETED A PRELIMINARY REVIEW OF YOUR PLAN AND HAVE THE
FOLLOWING CONCERNS:
1. THE SWALE ALIGIVMENT THAT I8 PROPOSED ENCROACHES ON THE
FUTURE SETASIDE. THE TOP OF THE SWALE CATCH POINT NEEDS TO BE
OUT8IDE THE FUTURE SETASIDE.
2. THE 8WALE 8LOPE NEED TO BE A MINIMUM OF 3a1. THE SWALE
SLOPES NEED THE BE SHOWPI AWD VERIFIED HY ACTUAL aROUND
EL.EVATIONS BEIhIG 8HOWN.
3. THE EXISTINO DRAINAGE EABEINEIVT I8 NOT LARGE ENOUGH TO
HANDLE YOUR PROPOSED LAYOUT FOR THE 8WALE. THE PROPERTY OWPIER
WILL HAVE TO GIVE SEPARATE EASEMENT FOR YOUR PROP08ED PLAIV
CHAidQE IF IT IS APPROVED.
4. THE DRYWELL CAN NOT BE EABILY REACHED HY COUPITY
MAIiVTENAIVCE PER80NMEl. AND THEIR CLEAIdINQ EQUIPMENT IN IT8
PREBEWT I.OCATION.WE WILL REQUIRE A 8EPARATE GRAVEL ACCESS
ROAD OR RELOCATION OF THE DRYWELL TO Ald ACCEPTABLE LOCATION.
5. NO FURTHER REVIEW WILL BE DONE UNTIL THE AGREEMEWT TO PAY
FEES IS SUHMITTED. NO APPROVALS WILL BE GRANTED UNTIL ALL
REVIEW FEES ARE PAID.
IF YOU HAVE ANY QUESTIOiVS, PLEASE CALL ME. I WILL BE ON VACATION
FROM AUGUST 13 TO AUGUST 23. ANY QUESTIONS DURIIVG THIS RERIOD '
SHOULD BE DIRECTED TO ED PARRY IPl OUR OFFICE.
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FAX (509) 467-8189
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TIME: PM
7RAfdSM I T TO FAiC `+1 15
TOTAL PAGGS: ~ 4 ( Including cover lettpr) .
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TD FAX A REPLY DIAL : (509) 467-8 I.84
T 0' d 68T 8L9V60S DF•a Ia33M IDN3 MHtJH .
Hahn Engineenng, Inc.
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IVortFi 8623 Divi~,- iii Stteet • Sarite 8
Spokni,: Wnshingtor2 99"08
l509I 457r7550
August 9 , 1994 ~ AX (5U9) 4G%-8189
Mr. HiI1 Hemmings
SpAkane County Pubiic Wor-ks
W. 1026 Hroadway
Sppkane, 4JA 99426
RE: SHORT PLAY NO. 835-93 FtEVISED LOT pLAN
Aear 8fY1:
Please find enclosed for your review and spprova} two (2) copie5
of the original and revi+sed lot plans with r-espect to tf-ir? abvve
refewenced prv3ect.
You will notice the following abaut the revisiQns:
1. The revised clrainage ditch aipng Skipworth Raad enters
the ppnd at the same point and elevation as In thE_►
arig,inal design.
2. The revised swaie configuratioh has the 5ame 44ttom area
and bottnrn eievatinn as in the original desxgn.
3. The revised drywell has the same 5ize and grate e1i-vation
as in the or3ginal design.
4. The drainage easement has been revi5ed frQm 50' x'e'O`
to 20' x 30' wi th aKcvss cvming of f ofi Sk i pworth Road.
5. The swale and drywell have been relocated td prevF:~nt
de5tructian flf existing shruhbery and flower beds.
P15?ase contact our- office when yrour review process is cc.zmplete,
We would appreCiate your expt?dxti.ous handlXng of this ma1: 1:Rr ~s
it is Currently in the pracess of constructivn.
I# yvu should have any quest3.ons or concer'n5, please do not
he%a, tate tv cvn tac t us.
Thank you.
Very truly yours,
NAWN ENa I NEER I NG, I NC .
R nde11 G. Hahn, P.E. .
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HAHN ENGINEEF2ING N. 8623 SU1TE 8 D1V(SION SPOKANE, WA. 99208
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North 8623 Division Street • Suite B
Spokane, Washingtoti 99208
(509) 467-1550
August 9, 1994 RECEIVED FAX (509) 467-8189
Mr. Hill Hemmings AU G'1 0 1994
Spokane County Publ ic Works SPOKANECOUNTYENGINEER
W. 1026 Hroadway
Spokane, WA 99026
RE: SHORT PLA7 N0. 835-93 REVISED LOT PLAN
Dear 8i11:
Please find enclosed for your review and approval two (2) copies
of the original and revised Iot plans with respect to the above
referenced proj ec t .
You will notice the following about the revisions:
1. The revised drainage ditch along Skipworth Road enters
the pond at the same point and elevation as in the
original design.
2. The revised swale configuration has the same bottom area
and bottom elevation as in the original design.
3. The revised drywell has the same size and grate elevation
as in the original design.
4. The drainage easement has been revised from 50' x 20'
to 20' x 30' with access coming off of skipworth Road.
5. The swale and drywell have been re2ocated to prevent
destruction of existing shrubbery and flower beds.
Please contact our office when your review process is complete.
We would appreciate your expeditious handling of this matter as
it is currently in the process of construction.
If you should have any questions or concerns, please do not
hesitate to contact us.
T han k you.
Very truly yours,
HAHN ENGIMEERING, INC.
i~
R ndell
G. Hahn, P.E.
President
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$90284$
Mr. $1l1 Hemi[l11'#gs
SpC]kaY12 Co1.1I'1ty publiC WDrkS
W. 1026 BxOadWay
5gokane, WA 99026
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l7piialti C. ! icyrmanti, I'.L'., County 1,1ttglneex 17emils ti!. $cotl, r.B., Dlrector
AGREI~MENT TO PAY. FEES
, CiNEEIt'S AGRECNIEN'I' ~VUh-1~3 lt .N
.
7`liis agreemeni uetween 5pakane Corrtity aitd Ro-naell~, ~4 r-P, 2. ,
n3 o tspn
wliose intcrest in tlle projcct Is f3~~2nCrhtim,
~~,c , , ctc.)
is enterec4 into tiiis day of "St 19 Tliis agreeiiiettt is arplicable to the praject
kciown as:
•
i mo. g3J~
T c r ~v! natcd i n•~' ~r CKa ~ silDrt Pl
~projcc
Tilat tile iildivicluals ancf raitles n3nied Ilefelin a9 having aIy lnterest in thc above clesCribecl rrorerty ot
Project agrce 1o tiie foflowing:
1. Reiml}urse Spokane County for pmject rcview and iiispectiori fces as specirleci in
Chap#er 9.14 of (lie Sliokatie County Cdcte. 71ie fees will ly►, bnsed olt actiial salary
casts inciirrccl by Spokane C.outity for praject reviews ancl i or inspectioiis plus a teli
pcrceht aclininislrAtlve cliargc, and will 1ie billecl ttinsitlity as accrticcl. Any fi»ti1
biilirig atYi(junts, to jjlClllcJC aiiy lato fees or any oltyer exl)enses iticurcect in tlle
collcction of an overclue account ciiust !fe Paid prior to tEte COunty's acceplance nf
the project fcor filiiig.
2. The unciersigned ngrccs that thesc fces are ciue and payable up4n receipi of tlie
billing as speciEicd Abovc.
3. Ariy invaices not paicf wiliiin 30 clays of lhe iitvoice clate wili be sutyjecleci Io a late
fec c1iiirgc cif l°lo per inont1Y (12% rcr year) ati tlje unliaici baiai3cc oF itic aecaurlt
fee charges. 1n Aclclitl'on, if any outstanciii3g balaticc on tlte
aecoillit for tllis projeci is cmt ij(iid witliin 30 clays of (lie icivoice date, t1o fiirtller
revic;ws of tltie prc3jccl cioctutietits will be~ conclticled until the cntire accnunt balance
is paicf. Ariy balanec on (lie aeeoutit for tisis project not pzicl witliitY 65 cli-kys of llle
invoic:e clltc inAy t-estilt in legal actian or (lie initation oF othcr ca!lectio» procccieites,
inc:l►iefing rcfcrral to a Co{leclion agcncy. 17ie Sponsor wi1l bc liable for ally fiiit1 a11
expe-nses incurrecl tyy tlie Cottiily for (lie c:bllcclion of over(lue nccoiints.
4. T`tie iiinntl>>y bitling sllotilcl be sent to the atlention of: ~
NAMC: gandtll G. }bAtL ~ V,Fr-.
~
ADDRCSS: 6q 1)'W,5i nYt
CITY, 5'I'AT'Et: S p G
z1p ConEf, , q 9 ?.0 g ,
P1 joN E,
Y titiclerstatici ttiat failtire to ray tliese fGes ittay rest,It in clelay in completion or npprovnl oF (lie ptoject oc
atlyer Pa5sibie 5anctiotis.
If this fee agrcellicctt is completcci Uy saivicone otlicr than (lie Sponsor (i.c., tlie
rro}ect nwetii:c or Aprincipal in ihe ftrni srunsoriiYg l1ie project), strcli as tlie l:ngineer
clesigiiiiig tlic projcct, llien writteii atjtliarizatiott froiY; (lie Sponsar speclRcAtly
at,llic,i-iziisg llie Aberit t« exccute tl,is C'ee Agreeuleiit Is attac1 c1 ta 1i1is Fee
Abreen►ent.
SI G NA'i'c,lrtr7 By:
~ (PnYN7' NAME)
~
~ETuIzN YEr.LOW cc~P)LTO sK)KA~P, COUNTv E c~INcrLIN
k\PV\31&1 eeitittq•tca 8i20/413
I A e v nn~ 1ti _ e . ' A - ~ - -
! , .
ir ~ . .
- •
t
Hahn EnRi'neenng, --rnc. , .
' N. 6623 "H" nivision
Spokane, WA 99208
~ (507) 467--1550
`
. ,
FAX (509) 467--8189
,
f
I
FACSI M I[_E 7RAAISt"tX 5S i GV GdtlER SHEE-C ;
DATE : i SME:
TRRNSMI i TO FAX
TOTR[. PAKS: ~ ( xncluding caver leLter)
T0: NAME h~
f .
CQi PAiVY , O . e
~.OCAT I Oi~ .
F.ROi'f : NRME .~AL ~
COMMEPiS
e
k,
v .
TQ FA X A REPLY A T AL : ( Sp9 ) 467--8189
I 0' d 68 T S! 9~~aS 0ha IZt133N IDN3 NHHH
Hahn Engineenng, Inc.
East 55 Lincoln Rd. • Suite 102
Spokane, Washington 99208
(509) 467-1550
FAX (509) 466-1729
November 11, 1993
, _ - _
Mr. Christopher J. Reich
Spokane County Engineers , R64 d
Public Works Building W. 1026 Hroadway ~j - r
S p o k a n e, W A 9 9 2 6 0
RE: HARDIRIG SHORT PLAT - - 3RD SUHMITTAL
OUR FILE NO. 93H134
Dear Chris:
Please -find attached the third submittal of the Harding Short
Plat 835. The submittal contains your original plan review
comments, redlined copy of the street plans, revised street
plans, fiinal mylar and final drainage report.
I believe you will find your concerns outlined in your review
letter, dated October 25, 1993, have been adequately addressed.
If you should have any further questions or concerns, please feel
Thank you. -
HAHN ENGINEERING, I .
andell G. Hahn, P.E.
President
Encl.
~ - s SP 835
HARD I NG PRO~ERTY
DRA I NAGE REPORFr
OCT 11 , 1993
~
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EXPtRES
HAM ENGINF.EgtING
N. 8623 "B" DIVISION ST.
SPOKANE, WASHINGTON 99208 .
467-1550
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BOWSTRING METHOD (TEN YEAR STORM OESIGN) PROJECT= SP 835-93
DETENTION BASIN DESIGN BASIN: A"
REVIEWER= PREBLE
NUMBER OF DRYWELLS PROPOSED DATE= 10-Oct-93
0 Si ngl.e (typ 1 Double (type B)
220 Pond floor area
Total Area ( calc (see H1 ) 2.41
Time of Conc.( calc.) (see H1 ) 36.27
Composite "C" ( calc . ) (see H1 ) 0.28
Timtie of Conc.( min ) 36.27
Area ( Acres ) 1.41
C ' Factor 0.28
Impervious Area ( sq . ft 3200
Volume Provided ( cu . f t.) 208 = 135.1 storm ( toL 325
surface= 325
u/g= 0
Outf low ( cf s) 0.0018332 0 1
Area C" Factor 0.40
#1 #2 #3 #4 #5 46 #7
Time Time Intensity Q dev. V in V out Storage
Inc. Inc.
(min. ) (sec. ) (in./hr. ) (cfs) (cu. ft. ) (cu. ft. ) (cu. -Ft. )
( #1*60 ) ( A*C*#3 ) ( Outf .*#2 ) ( #5-#6 )
36 . 27 2176 . 47 0.89 0.35 1030 2180 . 46 -1151
5 300 3.18 1.27 509 300.55 208
10 600 2.24 0.89 717 582.78 134
15 900 1.77 0.70 850 116.13 133
20 1200 1.45 0.58 928 795.08 133
25 1500 1.21 0.48 968 835 _ 63 132
30 1800 1.04 0.41 998 866 _ 57 132
35 2100 0.91 0.36 1019 887.92 131
40 2400 0_82 0_33 1025 894.07 131
45 2700 0.74 0.29 1013 883.00 130
50 3000 0.68 0.27 1012 882 . 59 130
55 3300 0.64 0.25 1029 900.02 129
60 3600 0_61 0.24 1054 925.16 129
65 3900 0.60 0.24 1108 980.08 128
70 4200 0.58 0.23 1140 1012.95 127
75 4500 0.56 0.22 1168 1041.04 127
80 4800 0.53 0_21 1169 1042_31 126
85 5100 0.52 0_21 1209 1082_90 126
90 5400 0_50 0.20 1222 1096.66 125
95 5700 0.49 0.20 1256 1131.28 125
100 6000 0.48 0.19 1288 1163.51 124
DRAINAGE POND CALCULATIONS
Required grassy swale pond storage volume
= Impervious Area x.5 i n./ 12 i n_/f t. = 133 cu. ft.
provided= 135 _ 1 cu. ft.
DRYWELL REQUIREMENTS - 10 YEAR DESIGN STORM Maximum storage required by Bowstring = 208 cu. ft.
~ ~ ' i ~ _ ~ ~ - •
TIME OF CONCENTRATION (minutes)
Tc ( over land ) Tc ( swale ) Areas "C "
Ct = 0_15 L2 = 380 1.34 0.30
Z 1 - 33 0.07 0.90
L1( A) = 160 Z2 = 33 0.00 0.00
N(A) = 0.4 B= 0 0.00 0.00
S( A) = 0.015 n = 0.3 0.00 0.00
s = 0.016 0.00 0.00
Tc (A) = 6.41 d = 0.5 0.00 0.00
Total A Comp "C"
L1( B) = 0 Tc ( gu 25.49 1.41 0.33
N( B~) = 0
S(B) = 0 Tc(A+B) = 6.41
Q=C*I*A= 0_46
Tc (B) = 0.0
Tc( tot 31 . 90 Q( est = 2.05
Intensity 0_99
A = 8 _25
WP = 33.0151
R = 0.2499
V = 0.25
Tc ( 'Cotal ) = Tc ( overland ) + Tc ( gutter ) 1"c( gu ) = 25.49
Tc ( overland ) = Ct*( L1*N/S~0 .5 )-0 .6 ) Q( es~ ) = 2 _05
Ct = 0.15
L1 = Length of Overland Flow Ho1_ding = 13.54
N= friction factor of overland fiow (.4 for average grass cover )
S= average slope of overland flow
Tc ( gutter ) = Length ( ft . )/Velocity ( fit ./sec _ )/60
B= Bottom width of gutter or ditch
Z1 = inverse of cross slope one of ditch
Z2 = inverse of cross slope two of ditch
d= depth of f low .in gutter ( es-Limate , check estimate with Flow )
Area = d*B+d~2/2*( Z1+Z2 )
Wetted perimeter = B*d+( 1/sin( atn( 1/Z1 ))-r1/sin( atn( 1/Z2
Hydraulic Radius = R= Area/Wetted Per.imeter
Velocity = 1.486/n*R'.667*s-.5
Flow = velocity*Area
n = 0.016 for asphalt
s= longitudinal slope of gutter
Floor outflow = ( .36"depth/hr. per sq.fit. floor (1 ft depth/12" 1
= 0.00000833 cfs per sq. f t. of f 1 oor ar ea
BOWSTRING METHOD (TEN YEAR STORM DESIGN) PROJECT= SP 835-93
. •DETENTION BASIN DESIGN BASIN= B"
REVIEWER= JWP
NUMBER OF DRYWELLS PROPOSED DATE= 05-Oct-93
1 Single (typ 0 Double (type B)
200 Pond floor area
Total Area ( calc (see H1 ) 0.17
Time of Conc calc (see H1 ) 5.00
Composite "C" ( calc . ) (see H1 ) 0.55
Time of Conc.( min ) 5.00
Ar ea ( Acr es ) 0.17
C' Factor 0.55
Tmpervious Area ( sq . ft.) 3210
Volume Provided ( cu . f t.) 208 = 141.6 storm (tot 371
surface = 366.5
~ u/g= 0
Outflow ( cfs ) 0.0016666 0 0.3
Area * C" Factor 0_09
#1 #2 #3 #4 #5 #6 #7
Time Time Intensity G1 dev. V in V out Storage
I nc . I nc _
(min. ) (sec. ) ( in./hr. ) (cfs) (cu. ft_ ) (cu. ft. ) (cu. ft. )
( #1*60 ) ( A*C*#3 ) ( Outfi _*#2 ) ( #5--#6 )
5.00 300.00 3.18 0.30 120 0.50 119
5 300 3.18 0.30 120 0.50 119
10 600 2.24 0.21 147 6.43 141
15 900 1.77 0.17 166 25.73 140
20 1200 1_45 0_14 177 36.92 140
25 1500 1.21 0.11 181 42.14 139
30 1800 1.04 0.10 185 46.35 139
35 2100 0.91 0.09 187 49.26 138
40 2400 0.82 0.08 192 54.23 138
45 2700 0.74 0.07 194 56.77 137
50 3000 0.68 0.06 197 60.62 137
55 3300 0.64 0.06 204 67.48 136
60 3600 0.61 0_06 211 75.54 136
65 3900 0.60 0.06 225 89.41 135
70 4200 0.58 0.05 233 98.70 135
75 4500 0.56 0.05 241 106.86 134
80 4800 0_53 0_05 243 109_32 134
85 5100 0.52 0.05 253 119.82 133
90 5400 0.50 0.05 257 124.62 133
95 5700 0.49 0.05 266 133.72 132
100 6000 0.48 0.04 274 142.26 132
DRAINAGE POND CALCULATIONS
Required grassy swa].e pond storage volume
= Zmpervious Area x.5 in./ 12 in./ft 134 cu. ft.
provYded= 141.6 cu. ft.
DRYWELL REQUIREMENTS - 10 YEAR DESIGN STORM
Maximum storage required by Bowstring = 141 cu. fit.
provided = 371 cu. ft _
,
i imc ur I,VIVI.CIV I KH i lU1V t mi nuLes )
-
Tc ( overland ) Tc ( swale ) Areas "C"
Ct = 0.15 L2 = 380 0.07 0.90
Z1 = 33 0.10 0_30
L1( A) = 0 Z2 = 33 0.00 0_00
N(A) = 0.4 B= 0 0.00 0.00
S(A) = 0 n - 0.3 0.00 0.00
s = 1.6 0.00 0.00
Tc (A) = 0.00 d - 0.5 0.00 0.00
Total A Comp "C"
~
L 1. ( B) = 0 Tc ( gu 2.55 0.17 0.55
N(B) = 0
S(B) = 0 Tc( A+B 0.00
Q=C*T*A= 0.30
Tc (B) = 0.0
Tc( tot 5.00 Q( est = 20 .50
Intensity 3.18
A = 8.25
WP = 33.0151
R = 0.2499
V = 2.48
Tc ( tota.l ) = Tc ( overland ) + Tc ( gutter ) Tc( gu ) = 2.55
Tc ( over land ) = Ct*( L1*N/5"'0 .5 Y0 .6 ) Q( est ) = 20.50
Ct = 0.15 '
L1 = Length of Overland Flow Holding = 13.54
N= friction factor of overland flow (.4 for average grass cover )
S= average slope of overland flow
Tc ( gutter ) = Length ( ft . )/Velocity ( ft _/sec . )/60
B= Bottom width of gutter or ditch
Zl = inverse of cross slope one of ditch
Z2 = inverse of cross slope two of ditch
d= depth of flow in gutter (estimate, check estimate with Flow)
Ar ea = d*B+d~2/2*( Z 1+Z2 )
Wetted perimeter = B*di-( 1/sin( atn( 1/Z1 ))+1/sin( atn( 1/Z2
Hydraulic Radius = R= Area/Wetted Perimeter Velocity = 1.486/n*R~.667*s-.5
Flow = Velocity*Area
n = 0.016 for asphalt
s= longitudinal slope of gutter
Floor outf low = ( .36 "depth/hr . per sq _ft . f loor ) * (1 ft depth/12 " ) ~ (1
= 0.00000833 cf s per sq. f t. of f 1 oor ar ea
- Cr
OH-IRM- 2/15188 US Department of AgriculturE
Soil Conservation Service
DESIGN WORKSHEET
f or
Trapezoidal Channel Section
prepared for
~
in
SPOKANE COUNTY, WASHINGTON
Designer : JWP Checker
Date = 10/12/93 Date
BASIN "A" 9QAI~E %P
Slope = 0.0133 ft/ft Hydr Radius = 0.20
`n' value = 0.030 Area = 0.55 sq.ft .
Capacity = 1.10 cfs
Velocity = 2.0 fips
Sideslope - 3.0 :1
Bottom width = 0.0 ft.
Dept h = 0.4 f t.
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OH-IRN- 2/15/88
US Department of AgriculturE
Soil Conservation Service
DESIGN WORKSHEET
for
Trapezoidal Channel Section
~
prepared for
1-1 A F; [D 31_ " c
in
SPOKANE COUNTY, WASHINGTON
Designer : JWP Checker
Date : 10/OS/93 Date
6AS I N "B" S*4L-C-
Slope = 0.0160 ft/ft . Hydr Radius = 0.12
` n' value = 0.030 Area - 0.20 sq.fit .
Capacity = 0.31 cfs
Velocity = 1.6 fps
Sideslope = 3.0 :1
Bottom width = 0.0 ft.
~ Depth = 0.3 f t.
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ON-IRM- 2/15/88
US Department of Agriculture
Soil Conservation Service
DESIGN WORKSHEET
for
Culvert Evaluation
prepared for
1-1 o-'=1 F: C~ 3: P4 C~
~
in
SPOKANE COUNTY, WASHINGTON
Designer = JWP Checker
Date : 10/12/93 Date
CULVERI" @ 1'URN AROUND
`n' value = 0.024 Capacity = 2.8 cfs.
Length = 50 f t _
Diameter = 12 in. Inlet CONTROLS
Projecting groove edge
Elevation of headwater = 2.7
Elevation of inlet = 1.6
Elevation of tailwater = 1.5
Elevation of outlet = 1.0
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j~~'~,Y ~ti ~ ' ~ ~ ,~~~,"{1~~! 44 ~ ~ 'j~ t ; ~ , Q~ ' f 1 • i ~ 1~ i,;; ' ' ' tT ;r ~ 1~ .!'1, ~ , ~1, ~ ~ II ~ ~ 1~, ' i ~ ' ~ °,jp ' ~ n p~ ~ ~ ~~,~j`~! ! ~ ~ ~ y~ f~,r, !1 i h t i ,;~i ~i ~ ~ ; , w~~i1-, ~P t! ~ 1~1~~~ k~~j~1~i', i,t~, 'A'~y , ~y~p~„ ' i~}~ wll I ~ ~ ~~1~~' ~ p~ 1' ~ ~
~o ~ ~ ~'k..'~,~,•,< ~ •r~ ,'r ~ i ~ ~ y, .M~ ~ y' eK' CA , ' ~ y,;;' i ~Ir"~",~~~j, ~til ' ~~~if' ' ,~``"t I o ~ H~'•~' ~ - ~`r: ~~'t'~ ~`~~+j
~ i~~ ,'~~i ' \ ' C ~ ~ ry(h , ~j~°~;~1~!1}~, I ~ ~ r , ?~s. ~ .k4 . ~ ~p:.`~ 'p . IJ I~ u'~ ~ 5~l`~' ' d~~~ f ~~r n, I ~~~•1 ~ ~~~4 •,}(.!t a',~~ "'t ~'2'~ ~ ~ ~ A ~ ~l ~'1~~~•~ • M, ' ..~~1. ~n~ ~ ' • ~ T r y Tj I ~ 4 ~ll" •Lfi yr ~1 ~ ~ 'F~~~ ,t~Aa~ ~~S ~I~ ~ P
~ ' ,1 ' i N ~ ~ +Ci~ ~~,~~1 A ~ ,pr,~ QI , !ti"~ t M~h% 'g,.', ? a~ ~ , ~,i~' X ~~~1"' ~ ~I`~ ~ , ~ ~ ' y~ ~~r ~i'~. "~S+ ,~y , :~N r ~
, r ~ h~y u , ,,~op ~ , . , 4` , • ~.:5~ ~ . ~r' " ~ t ' 6 , ' {Il ' ii. r , ~ • r,.~'; ~1'(+ t ~M„ . ~ ',~(,~~~4~ , ~~w ~ ~U! iJG~~f01,,!~/\~~ , ti~` .,,`y: ~ ~S~'~ ~',~;~r~~
y~ \ ~ ' , ` ~j' , ~ ~ Q ~~ii • ' / ~ ~ ~ s!-'.-~ X I ,'r t,~+ V ~w~ ~ ~ f~ Y~1 1 ' • i, ~y , '~`~c. t~ , ri~ „ ,r;$~: I ~ , , ' I, y l~~ . ~ 1( ~~l~~1j+,Y,.~ { !~r ^ lr.~i l~ i: ~ ~11X .
~r~„ ~ ~ I y 1~ 4:,~h ~ ~ ~r ~i , f+ G+v`~ fi I ~ .1; S', Y. , ,^1. fr'~ 'Z ( .t411~' 1~"~~ " - ti~~~~ o d~ ~v ~ ~~"a;~~, ~ p..~';~'
I ~ ~ ~ ;y~~~l~;~l " z .y"•,~ :n ~ t~. s .
. I~„ m a, t~ • ~ . ~ 1' + ' . ~q ~'S t(~ 'A N ~ .r.1 ' . , ,'rnT!~, A~'.1 .j~j' ~ ~ '~r~t 11! X ' , jj ~ ~i , ? '~t`Ni'2,~ .1.~~
i.~`~~ ~rll~ 1 r ( ~ ' ~ ~ ' i. ~.h;l / ,jl~l t~~• .,,,Il '~~t; ~P:~~ ~ ~ ~ • , , ~a~~. ~ ~ ~~s,; ~ , „
r y 1 t r7tl~ ' ~J' ~~f ~j'~ , , l~.• ~l, ~ F ~ ~ Y'~•, ~f'~ ~ ' , ~ ~~j';r,~'~~ ' '`,1 ir' H ,!~I~;Jr ~ 1` ~ ~ ' ~ ~ t""~'~~t~ '~1~%~~ ~ ';l~'it~ f?'„~ •T`"~N,,' "q ,1, y,; . ~ "
~i~~•j~~ ` ° ~lj~ ~S ~'i 4~t~„~; „ ~ ~ tip ~ ,~~~t , r{ 1~y~j,Gr • ~ ~ ~ ~ ~ ' . ~ • ~ , ~ {:,i~',~~' );.i
r I ~ ~ :iX✓ '~,:::.%-~••~y.~ll .~i~J/// • , ' ~p~~ ~:tY,1Y~ 1 ~;,~1JC ~ a ♦iAi'.. .tl"i' 1.t'l~ ~ ~n~ f~~'~ ~ ~Ill ~ . \ ~ ~ ~ . 1 ~ 4 ~ ~ ~ . ~y~, •r ~;~:.i ~x\,. ~`~Q ~1 ' ~ . s t i~' t Ct'~i;;~~ ~ °A ~
~ t'~ ~ `fy~ ..l~.il« ~'F~~P~~'~~~~i ki~ ~lr~al~l,~. ~(~~Itl~ "y~t~~31~~.~' ~'~l~ i„ JiJ' ~ N,': ~,y t,~ '~t,~~ •4, "~N .t.~," ~ ~ ~i g% ~ ~,1 t~.' , a. ~ :f1 '`i ~►`,t' ~ " , ?fi b ti, ~.1x ' ` }i' 1. ~ i . ,'ti.... r~ 1~'~ 'f r~~~~~ ` ~ 4~~~~'`~`s~~j t i'° ~t~;~~'~~~~ ~ .t~ ~~y;~" T,.~~~:P ~ ~ S
' +~~~,i ~t f ~„y ; ~~~i'~~~ ~t~ 1• t ~i~iT~ k ~d+~ 7 ~11• N ~,r~;.,G~,~ t~ - ~}„r„~ . ~t St k G'~~ N ~e,~ ~ ~~'~~,~34~'~ , ~~~.t~~~ ,i, x~ ~ V~ ~l'~:.~ ~ ~~',i ~ . i ~ 1 ! .p."~rf"~'~ ' i' ~ ~ ' °
Nc r ro ' ( ` ~ ~ f 'N ' t•RG~ tt1+~~~,i~1 ''~'L t i r Q~~iry! , ~ ~ ~ ~,~r;~l;~ ,C¢~ t '~1~Ijf,~~ti, '43 !,i 3 ' `j n;t N~~~ '1~~~~~~.W'S"!ti~,~ ~~'~L'~ly, ~ ~:~yl;w ~ fa ~ . , j ~:.1~ C;:.'. t ~ ~ ~ W S~, , ~ ~ . y~~ .:C"' ~ yy,!r ta~~~r , vy ~ ~ ' ~ ;
~ il~+ . ~'~~~fv : ~'4 ~ . ~ , . . :t ~ ; ~ , ~,~t r~,t. JY:{~• , v, i''~r, ' ~ i~ ~ , ` ! "i , . ~ ~l ~ , 4 ',lr l,-O, ~ ~l R V.' h~ ~ ~1 . , ~ 1i~',~ i j,l~ a , '~C; . ~~~4' .d i~~+b~ t Q' .~r~ M" i"~t~ ~ ~,41,t,.,'.+~ ~ .,"~r~r~ t n. a '
} ~ ' M • ~ ,°°t I •1 , ' t' ' . ; , ,~!'rj'v. ~ ~ ~ . „ „ , . ' a"`•,i'~ ~~'r ri., p 'd'' ~ '•~r , ' 't`' , N , . . ; ,~,~,.i++"'" t ' ~ x N G ~ t ''',c . ~M•~, ; R ,'i r7~,.~ : hh~ ! ~ •J,,, +''J' E n ~ ~r~~~~ ~ ~ ~
~ '!i~ j ~YP` S}v~~'1 y ' y;.~ °.~c~ ~~~"Y.~ ~ r•~o ~'};Fne4 T~' ~J , ~.~y." ~ r~~ , h~;`1 ~ 1~ .a ~i~.J~ , 5:'+• ~ ' ~ ~ s, 1 ~ ~y .~i~1 1 W I iC~ i )1~"j t~i•~~~,1), t~~6''„~ ~ i i!{ ''V~~ ^ i~ ~ S'"" y ~~'F°.~:~ ~j~,",~ri ~ „ ~ aY ~~,~~~I"s ~j~il ' a~~.~~aN ~~,~~'i~i i~ ~ r~~b~ , ~ ~ ~ ~
'~q~;~ Z , ~~~J ;►JJ} ~ ~~4t~~ ~•;~'~'~~%3:''~1 ~~~'R6~~~~ •w " ~~i ~ ~2~t '~a , ~;~..1.'dy ~j~;~' V ~i~, r, ~M1''!R!~'\\\ ~ b.tiN r QJ~~l`y v7~r1~ v.~t', ~ y, ~~~1t."t , ~';~;r~ ~
~ ~ ••1..~: ~~1 a l 1~~ i l a~ :yL 1~ Zi~~ ~i . ]r tiij ~ 7;61i~~ l~'• ~.~~r jw~ , . ~ « ~ ~ . .`T ~ : y G,. i•~y ~;i ~,~•~V(~~,' ..f'+' ,t .
Q ~~t ~~~,A ~7~l;~~~;~~1:~'' ~`"f ~1~1.~.1 ~ t ! ,!}~l~kt~~@~ ~ `'t r~'~'~ ny r y+; ~ ' J,y~ ~ ' . ~ ~4~. ' ~ 4~It' ,4, ~ ~ .1 y' '~i i~~, ~ ~ ~ ~u ' :v, r M 3 x / ~ , ~ ~ ~ S . ~ ~r • (3, N .2ti,
4 ~ ~ - iti' `l'rr 'I~'~ ~ 7 ~ i~ C4:~"~'~~ i~;~'~~ 4i2~~~71' i ~P i•~ ~T„ } 7+' ii ~,iA,.h~~.«.'nr''. •f.: ~"j• 5~' ~~s ~ ~ , Y~~~~ ~~!~'v}~„~ d''R'j' ~1 ~ ~l ~ ~ ' r,1.f ,t t~ r~~'~•. ~t~.~y~~, h~1 g'Y1~~1~ b~ '~1;, ~
} ' ~ ~~s ~ ~ Ul , .j'~i n''YrJ~~:'~i'~i ~i.~j # , ~ . ~~),',',~ri+ ~~,t ~ t, ~j'~"~ ~.N X 1 ~~tii4t + ~'~;~~.~'~.,f ~Ylj~ ~'I~,~11~„~-'~. . 'fAi,~y' ~i ~ ,~~u~.~4 '~~a~~ . ~ ~f!►1`', .t'{ '~'~',a~( ~ I :T. ',';`ti~~~4'~4f~:'l•,;~~',.~~ ~,it tl ~'a , ~ 4ti4 ':r v' „ yt~
s`Q~l, 'Zi. ~ •t 3v ; 1 +i ' . ty ~,~j'~~,..~~j~~ ~ . , ~ , , ~t , ~w • ~j,t~ ~~;1j'~ i N , ~i~ ~l~,~ 1i .;.~--'I~,~j~'' • 1 ,3~.: ~f,
V~'~'i~~ 4 • I,_;,......--'; - ~`v;l•,J>iti~„'fi~ 4 . 11~u~'w,~ { ,~;~„f t ~S ~v~~,~, ~~i~. , . , ~ Nr~,~' . '`,i1.~~" ` ~ ~ ~~4VJ ~ <ti~ yy t; 4. . i X '~SJ~ , ^'4 ~ ' ~ rc;c, 1+'~1
~p ~ :t"h •S , i ~ c-~'%' `i$ f + ~ '?~''<< , , ~f+ ~ ^la~ h~~ ►I .Y2+,i~,+~"!r''.~ .,I, ' ir` "(y"~~;,)~~< ~ N''•''' 1S~ . y,., . ' :~r . ~ , . : i'' • ~ " ' ( `II , r~'f a ~y ~~~i~,+,3. ( 1'
W i~'~11P~~ . . N' _ ~ ~ ~ il+~ 'iut•'`~i~.... • ,,Jt~ .'.3'~ I :a"~t~~'It . ~u_ j1~~..---.
pt - ~ • tJ: , ' , 'i
• ~J~ ,KC; ` . ~ . • . ' . . s;r , , ~76
~ :'4''N 6 ' `~'S".;~' ~ ~'~:....-•vr.'` S~IECt ~ r D ,ya ; . .,'?l~~,~. , I • (~~If15
fp z ~ ~ N ~1 •.,s..
~ ~ ~
.
iS SOIL SLH\'l:l"
occupy rolli~i(r to ]iillx• upla»cls. '.i'hclr f0r111C'CI lll l.Lyerecl tlier nre excellcnfi, pl.i{,es for {iuiif in; mi4r;lFerY %%-;1rer.Eo,wl.
loe=s 11 ~~cler coii] fer~aus foresf. '.l7ie .in~iu~~l I~reci~~it;~tio~i is (C,ip~illili'r~• it~iit ~'I~I~~--l; nat iu .t Nv=oc~~ll.iii~l `Yrnl~ ~►1• ~
t11)Oll[ 2, 'l,iclics; :►►ld the frQst-rrr~ seasoii is :tbollt 1-5 days. i-a»f-rc z,cu)~~
Freean,in soi]s are nzed for (rr.liii, peaz, clorer, :ilf.ilfn,
,lncl and as woocllancl. Garfield Series
I'reeman silt loam, 5 to 20 percent sIopes (Fael.-1`liis
is the cloiiiin,int. Soil on the ~iltv uplu»cl north .:ncl ea.t of The G-.ir(ielcl series conzist; of ~~-ell-~lr;llllt'cl. zeverelv
I:ocl;ford. Mosr. slopes are between 3 ztiitl 15 perceiif; .1 erc;ded soil~ th;it fot•itlecl iii Ineti, tulcler gr;iiS :ind Suizill
fCw S1?11l1 .ll'ea3 jl.lvt =1opes 0f 11101'e Clltl?1 JU 1)l'1'C•ciifi, aIICl sl11'llb:. Illl'z6 s011s occupy Lidgcrops. k11(Sbs. 111?d [i1C i(p- ,
soiiie oY 1e,5 tliaii a pei•c•ent. Slopes of mol•c tli;tti 20 per- -)er slopes oil I•olli~l(y to Iiilly uplancl=. Tliev have .L surfa,_e
CCllf :lrc' :IlOI't :lllCl a1'E .llollcr tlie edzea of tlie di'1I11arCw.lvs. .lvel' Ot ~Iliv Cltl\' IOtllll 111C1 .l sllj)sOll Of silty cl;ly ih:iC
I:epre=entative prafile : I-erV hat•cl. :-~-ticl:v au(1 plasfic. The aiulu;ll . precipirt1Clnll
0 to i iuches, A-cry dari: grayish-brown, frittLle Cilt toaul ; 1S 15 f0 2'_' 111C11e5; til1C1 tlte fl'Osf-fl'C8 :e:1-z011 15 :1bC111C 140
::-tnul;tr structure; veiitr,il. (I,lCs. .
iro 1; inche.~. Uron-il. frittUle silt loiun, nrarish Uro%~•u it a 1''
~ lietze zzc,i1- :tre i_tse(1, m,iinlr for Zr,lin. :ll °r:il t.i, 1~~~l ~~~r
:
.
ci~=~tli oP L inelie~ : neutr:zl. •
tc~ iuelie~. _i•:~yi~ti-l)ro%~~~i, firui ;ilt lo: iu that Urenl:s into Glrfield silty' Cl~l3~ loam, ~ t0 3~ percent slopeS. ~e~'Q1'e-
~o •'-i~~eu nri~n~~ : netirral. 1Sr e2•oded iCuC?1.-TI1lS SOII OCCLIl)1C3 ChE llcirrow
:o T' iilrhe;:. d:1rl.'- i•iil~1~T
bro«'ii. 1ii•lti siltr c1a~- l0:ttu, alnio,t silt ild tippei• :lol>es C >ll lOesS;Il tl ~il;lll~_ Tl1e zo~t1il1t , ,
~ ~ 1.1 ~CI'll -
Ic%a:u: breal:s iiit(i nrisius 1 to 2 inches iride, aiid tllE'll iiito 1)a1•r of rlle county. Mo:t slUpe~z :11•e be,Weel: ~)~1•-
:?-,ui1t L1oCli31? 111e11 LO 1 lACll il'1(ll': riCUrt':11_. CE'llt :.l fE'w z111,`tI1 ,iTC'.13 I1A\"E' slopes of i»o:'E' *Ila]1 ii) pe1'i~C2:r.
Tlll,' s111't.1CC z-Oll, wilE']1 11101::t. 1:111(rCs fl'Olll 1'E1'x' Clill'k :111C1 sOllle 11a1'YQw 1'ldnetol~s h;11'e- sl0~)C: ot le?s i1i:111 1)PC-
~•r.l\"I-~~ l~ro~~-ii to d.ii•l: 1~i'Otl'll 111 C0101•. The testui•e ~af Clie cent. 1►e~~i~e-eiir.ltire pt•ofile:
ilb -z 01 1 I';111ze3 fT0111 l:e,1r~' sllt IO~lI?1 i0 -iltti- cltl\' IO.1111. •
1lli::.+1 ,1~ 0 co ~ :nche~. cl:~rk-l►ro~r~,, tirm silry C 1'. la~ ~ l~~ai.~ , -;~1.U`i.lr s[I'i
; pe~'ce1:C Of Ollle 11'eas COl1Sl-zf s Of L,11'l:lll, t»i'e : llQliit•c11.
De:1t'vi,.•:1. O1~ ~e1'C1'el t' i 1'OilC(i rl'@eilitlll -011s. ` to 4~ inehe:s. t1;1r1:-I►i•o\rn. firc11 ~iltr e2ar, celtn~~•i~?~-i,l•o~~•
Tlii= :.i motlerartl~- ~~•ell tli•ninecl =oi1 tli :i~r~- (l.zy l~,:lm 1.jelo«- a cte~~rti ot ; i~ I~-lies: 1;t•
1 c:t~~, i~~,l~
~ , :lt li~~ .1 ~~ei•ti~ ~~•~,t,~~ lllch rf) ? incli
1 c:s \rwe an-a thnn iur.) :u?;;~ul:t~ f~!~,r_•1;~
:-.la\v1\- ;-ierroe.lble ;lucl k sa'tnr:lCecl for sliorL ~eriod~ ) ineh
~~i_ ti 1._ iliicl:; c11~ 61na~ CO:It il~~ ~?ri~n:~ ~ZUd ai;`u!:i:
itl =1~~'?t'; ~z holcl~ .~1~i,t~i i0 i 1~1c1ies of ~t'tlfet• tl«lc p1,111is ti
• e ttr.1
C~Ul t1=r. YT 1z e,1=y f0 tv.}l: exCept when stliUt'.ZfCCj. R00LS 4' S to';0 iilclie: celloivisli-lorowu. ririn lie;7v}• :iilt loaiii : i,rc•:1?:=
' ' iilto pri-iu:; 1 to ? iiiehes Ni•icie aiid tlieii ir,co ;tu,,miar
penerr; -tz trie 1ower laver, mainlt- alon_ ped fnces. The 11
4 co ~;I iitfli thick; neutrat.
fertilir metlium. Surface z-unoff isiiiediluii. and the
1~,1z:1r~► :o~ ero-ic,n ia mo~l~~r:ite. " Tlie texriire of the u~~pei' sllbsoil iz, :iliv clay oi• clay.
_lCorz thau 95 perceni of tlle acre:lg' Jj culcivaced; tlie 11111CI1 as lU percent o#some areils conSists of _Arilenzi. 1ai1', -
rest iS _~1rm N~-oodlo'tz. 11'hent is tlie c;lief c~l_.li erop. It Ner Per~~~~. or P.~lnu~e ~ail~.
i; nro«j-: iil rotcltioii Av:rii pea: and .1 zi•eeil-malllll•e ci•op Tliis =oil i=.~•ell clraiiled aiid sl0~~-1i- pe~•ir,e~il;IE~. rr llnlcl=
or 'i» ,1 ,,:'z<<1C-f;111ox~- ror:lf i011. Otlier cr:;l,; o•rolrn ~li•e pe:1s oi• 1~~ i~~~~Jie~ ot atei• tl~ar 1~1.1iit~~c.u1 u~r~. Zt i- =ti~°;;~• ;
;111C1 >j.l?'_~~' ; i:10~''1' C~1' l1f;11f.1, fO1' Ilil~' rl' z'eCll 111.11111Te: a11(1 ~lllcl pl.l~ric. ~~•lieii ~C~C: COll~eCjli~lltIv, lf i',lll be
'rl•;t=~ ='+~_'~~t'l'Cl. ~l'•l1'. O1' 1~~'l~illl't'. _Lll ''''1':l:;l ,lilti~ ~''1':1~~ ~1'Ol)~ n11l1' iti'Illllil .l 1'.tTlie~' 11.11''4~~' 1',I1lrt Ot ll'l41="li!'t 1:~►?1(eIli'.
r . V`' ? 7,) 17:i2r►fi'l'll. T.r'.~imC,i 1'C~ Ii~1QC 1)E'11P[1':lil(~11 1~ ~'C'1'' deel)-
. -1)C►11~1 CO =nlln''r a 1 ~a- . , . 1`lie fei•cilir,~
ll:lt?~' ~11 :l 1'.I11`rre ~'lll't:1Ct' 1'11i101~ 1; 1'.1 )Ill; .i~id ~l~e I~i1Z,11'(1 C~t r=i ~
1JII lt\' I1Ie tiCii~li.
l~ 1'Olll) ~ il:_li 1 ~lC k ' 1 C;i
I~ i•eemati silt ]oam, ~ to 20 pez•ceilt slopes, se~•erely is =e~'ei•e.
~I
ei•ocled ri.,1n 50 l~er~ent. of clle curf,lce la~-er o1•e rli.ul ~~3 l~er•cent of the acre:l~Ye i; culri~-a<<~_~: tl~e
~ rez r iS =eeilecl to .7lf.llfa O1• mr.t". Ij'lieat iz tiic c:iief ~:rop.
o:f tliiS h,lz- been reiiaox-ed by ero-zio2i. Fertility i-;-, me-
C11~1131 tinri.ua i-uiiotr' is r~tpicl. .~1~c1 rl~e ll;iz.ii•cl of ~tl~er ei•o1~= ~~ro~r~i ;~rt; bii•le~- .Zi~d di•~- fielcl 1~e,1=. _\ll
ero~io~l :s -e~-ere. _Ls Il1ilCI1 as 1~l l~er~°et~t. of soiue .~reas cz-ops re~poilcl to nit~ro`eil, sulttii•, ;titd l~li~=1~l~aru-.
cc.►n-;:i--z,- of unerodetl Freeinaii soils, pabilityun:t TZ"e-3 ; not in 1woocll:tnd zroup or ran-cre =Jrei
'Ihe =.~n-ie crops are zroNrn as oii I~i•eeman silr lo.lm. 5 to
per+,rnt- slope-z but vields .lre loRer. (C',lp:lbilit~- tuiit ~aT1•ison Sei'1eS~
IZ'"e- ,~•t~t~cll,lnd ni'Olll? 5: 11aC lll :1 r~1ii~~e sice) ~
I'reeman silt loam, ?0 to 30 percent slopes, se~Terel3r The G~Zrri=on ~eriea . ~s macle up of soine«-li.1i E\C•e=-i~-el~-
erotled ~=--C3~.-_llore thclil ~0 perce~lt of tlie surface lti3~er ~lrai'led. zr1i-elli- o~• stoii~• soil~ rh,lt foi•illed i2r~cle~• ni•:1~z
of thi~ ~oil ha; been remorecl b~- ero~ion. Surface rwloff in zl.lcial ouLiv.ish mixed•111 t~1C 111)~~el p:trr ~ritli ~-ol~:~nic
i~ ~•.Zpid. and clie erosion l~.zzai•d is se~-~re. Iilcluded iii ~Gll. Tlie~e ;oil~ are o~i iie;lrhr le~-el to moclera[el~~ rteel~
m:tl~piny ~1-ere fe~r ;~re;~= of Deari-ton soils. ~ terrace~. TIlE :11111U~~1 precti~itntio~~ i; 1S to incl~e-. :ulcl
the frost-free se:1czon i; lbout 170 c1a3-s. ~
Tlie S1me croPs ni•e zronil as o2i Ii'reein.zil silt loam, v ~oil~ of the Gai•i•i~oii serie; :u•e u~ed f~,r ~ 1•ai•iet~ of
fo 20 pe~•cei~'t slo~~es, btic. t-ields ;~i•e lo~~-ei•. (Cap,ibilit31 crops ai~d .ZS fai•instelcls ailcl suuurl~;~n lor,.
uilit I~~e-:,: ~•oocUilll(I grotip 5; not in iaii~e site) Garrison gi•a~-elly loam, 0 to 5 percent slopes fG~ti!.-
Thi; is tlie clomiiiant sail iii tlie Sl~ol:aiie ~`~llle~~ e~l~c of
Fresh Water iVIai•sh tlle citi• ot Spol:ane. llost slopcs are I,ebveen'2 and 5
li'z•eizh 1vater marsh (Fm) consists of sli.llloix-, sirampy Perce»t. Iiepresentative profile:
>>oilcls ~tnc1 of frin~es arotulcl ]al:es Gliat ~la~-e a tliictu.ltlilro',, o to 1; incl~es, b~nc~., ~-er~ cciab~c ara~•e1t~• t~:uu; ar~uular
~~•.Lter le~-el. ''he rc7et~1cia11 consists of ttiles; i•eecls? ancl Strttcture; s~i,I ~t~l• :~cic~. •
1:, to 44 ivcbes, durk-broArn, fri:iLle rcry sra~-etlr lo:im ; neutrll.
1•uslieS. I~liese Rre.ts clre of litt)e t•.tlue foi• vr;tzin~, but 44 to CO inclses i-, iut►lticolomcl sa~id, aravel, :tild CObblEStOI]eS.
~(Z( 5p I~f SPOIti:\1E COti\T1 J WASHI\CTO\ 19
'1.'he Curface color, irhen inoi:t. r:un-es froni verN- d,i.rl; tl~e countr. ltost slopes :~re l~et~~-een G and I:, l~erc~~nt.
I~ro~~-n to bl:lCl:. Thc textut'C 0f I~IC illl•f:~ce 1a~-er i~ gc.1v- T►epre, ent.titi'Va profile :
cily or vei•vat•avelly lo.uli or silE 10:1»>. '1'he sub.ail i•:in-es t) to 13 incl►e:i, btzek. i•crs tri.ibIc silt loaiu; ~~r:inutar:tcucc»re;
in color froi►i cl:lrl: IiroNN-n to rellowi_li brown. Cl.iv ;111d neutrat.
]iiiie h:1ve Zccuniiil.ited oii tlie~bottoiti of tlie pebbles iii l•lte 13 to 62 incLe!~. dark-vrm.•n, rrni toaul M:tt Lre.tt;, iiitu pri:5ms
]uiver =tib=oil. Tlle deptli to tlle ararel sul~~er,~tilin ruil~es ~x tu ?iiirLrs ~~~icle: sli~t~ct.- aci~~.
~ ~ l~- to 7: cllrl:-t-ro~~-n, friable loani :sti~~l►tl,r acid.
from ,0 ro:~5inclie;. ~i~ucl~ n- 10 percent. of -ome are:is
consists of Bo»~ or 1']~oel,e soils oi• of otlier Ga~•risoi~ ~oils. I~i pl:tces the sui•f~lce ]~i<<er is ~-er~- darl: uro~~-ii. IL• i- 10
''liis soil i; soiiieWhar exceszively dcaiiled and ha= niocl- t 16 1 nclie; cli icl:. Tlie cexture ot Clie -zii v,oil r:~~izrz~ from
erarely rapicl permeability. It ]iolcls about 5 inelies of silr ]o:iiil ro ligrlit ~iltr clay lo.iiii. Fi•om 5 ro 2.1 14recilc of
AN-.lter fh.lt pl:uit; c.lii use. It i; e.1siT to -worl:. Roots t•lle lower subsoil i: ~composed of gravel Riicl :cones. :Ls
peileti•ate to tlle 1.1ver of sand, c-rlnrel, aiid cobblestones. iillich a; 5 percent of sonie are.ls coii;isrs of 13erii1>;11,
Tlie fei•Giliri• i; illeclitnil. Stu•face ruiiotr is Slow. aiid tlie vea.rytoii, or Larkin soils.
h,lz:lyd of ero=ioiN i-z -zlizht. This soil i; Avell clr:lineil ancl moderatel~~ permelble. It
_LUOIIt 8~~ I)C1'Celli. Of tl16 1Gre~lne i; culti~-~1ted: rhe re~t is Ilolds J to 11 iilr_h:_ of ~r~iCer thac l~l.luts c:lll U,e. IC is
~
u=etl for ar,l%lllg. aiicl as flrm_-%te:td; oi' stl>>Lll•bail lots. ea.y to worl;. I.oot penetrltion iS i-erx- cleep. The fer-
M0s[• Ot illt' :lCl'C:1,e 1z 11'1'lgilCeCl. 71'1'lgilfl'Cl 11'e:iti :11'E 11=ed t1l1R' 13 Illzll. Sill'i,lCB 1'L1110ff Is 111tClliltll, allCl [!1e b;1Z:11'(1
f01' O1'C11.11'Cl tl'IUC~ :lllCl bi~1'1'LCs: C.1bb:lme. COlll. C:111f.110111). 0f el'Otil0l1 l5 lllOClel'.lie. .
GLiGlllilUel'S. CC'IC'1''. Zllil :Clll:lsll: whe;lt. Otlf?. a1lCl btll•lev: Mnl•e thcln 90 per-.zn't of clie .ZC1'e:1zE 13 CillCl1",1CeCl: [I18
alf.llfa f01~ h.1r :aiicl zra;s for :eed and'pasttii•e. Di•y]:tilcl iesc i; c-rr~1-r_ed. 11"lieat- i; tlie chief crop. Ic iti nrow=n in
.11'ea5 11'e llzecl ~~~or 'wl1E'.lt. b;11•lev; .111C1 llacii-e bunclln'1'as?. 1'OC:It1011 wltlt b11•ler. Oars? pe1s. IE'11C11z. :llf.llf.l. O1' zl:lz:.
'rhere iz- no clilhculri- iiithe uz-e of machineri-, l~lit~ the =~ll gr~~`; :~nd ~•r:~:ii crops responcl co nitrozen: lenu:iies
;r~1~-el is l~i.•d aii till,l~-e iiiil~lement;. _~11 crol~S except 1'e* ZZPOl1Cl t0 Slllfll2•. i'Cap.zliiliry unic IIIe-?: Lo.lnii- rclii me
]-eo•umes re=pond ro nitrogen. --,%'oiiie ci•ops re=pond to zzi«: ilot iii a n•oocll:llld (yi•oup)
;Ztilfui•; boi•oil. ,lnd pIZO;plioru-. i CZpabiliry uilic rIIs-?: Glenrose silt loam, 0 to a percent slopes (GpA'. T?iis
L0alltv 1'.ll?`'e ~ire : llot 111 .1 wOOd1;111d z1'Olll)) SO11 Ilils 1 alll•fnce 1.1`'tl• ? to 4 incliez thiCkC1' fh,111 Ci1ilI 0f Garrisoti wr1i-el11- loam, 5 to 20 percent slopes (Ga~r.- CTleiiro=e =ilt lo:~~:~. ro 20 l)erceilt -lopez. Sui•f;;ce ii~di~
1'liis -z oil ha S ,i =iti•f:1ce 1;1~-ei• ; to inclies tliiiiiiei' Lil:lll fI1,1t is -loi~-, niid tlie eroz:o!lh~lz;irtl i,~li,it. Inclticlecl r~~ ;l~-
of Garrison ~~•r;l~-elli- loa~iii. 0 ro ~ pErcent Slope-. Ituiiotr' piil~ 11'ere ~m.1ll .Zrea~ of t~l~li~• ~Zild De:ir~-tnn =~il~.
i; ]1lE'Clilllll. ~iiid rlie ei-o;ioii 1i1-r.ard 1- moder:lte. Tlie :~i111C C101~~ ;1~•e y~ro«~i "t;z oii Gleili•o-ze silt lnani. .5
TI11S sUIl 1= li :E'Cl 111 111L1C11 tlie -z.llllt' \C;1Z' R~z CT:ll'1'1z011 {0 20 pei'Cellt 510pJ~ : 111 :ldC11t10I1, 1"Qg'Lt1b1es :11't'
nr,vellv lo;lin, 0ro 5 percent slope-. (C:lplbiliry Lulit. (Capauilit;y unir IIe-?: Loillll~' r~in`e zite: not in .1 ,~•oc,~l-
I~-e-5:' z.o,li»~- range siLe: not in ~z i~-oodl;lnd `roup) land VTOllj)) . . .
Garrison very sravelly loam, 0 to S pe;•cent slopes Glenrose silt loam, 20 to 30 percent slopes (C~C~.-1i:is
(Gm5).-Th1.~z szail I?;1z- .1 iliinneT. 11101'e g1'.1velly slll'f.1ce laver $Oll l115 SL -ztll'f.lce l.lj'ei' .13 t0 J 111CIleS tlllllllel' Tl1ai1 ih:li Qf
r11:11i G.lri•i~oii gr,lveiJ1- 1o1n1, 0 to 5 percent Slope=, and Gleiii•ose z-ilt loaill. to 20 perceiit =1opes. `lll•fI,:e ~111,off
hOlCla lt'z-z Cil:lll Of w.litl' Ct?:lt I11,111Cs C:111 ll=t'. The 1~z 1'tll)ltl, and the ei'-:=I11 h.1%al'Cl 1z zeZ"el'e. _,bOtlt >>er._ent
L,1':ivel e:lw:e~z E'\C1'rlilZ wo:11' O11 IIll1_7e ]11:ZCIli11@1'N'. Of zO111C'- a1'E:1S C011=1zt-z C1t IjC'1'11I1111 :111C1 rle:lTyCOIl ;oi1=.
I1111~'.Il :l; i ~~i'1'4'('llr Oi =Glilt' ;ll'':ls COIISi-f~ Of Oillei' CT:11'1'l~411 r~~e z:1111C C1'Ol)~ 1~'c' ^'1'Ot~~ll .l~ Oll Gleiii'~~l ~lli ICi,llil. •'i~~
-znl~z. ( C.;:'►~l})111(~' ii?lii. YVC'-J: ~_11',Zl1UC ~ 1'Zllne ~ -lie: 110t 1 . 2~) 1C'1-~_eui slo1~e;. ~.~lii 11101•e ot tlte :ZC1'e'1~' : ?l
1 ``Z 1., ]11 ~1'~1== il
iR,i ~~-oc~ll:i~►clnt•oiil~) " le`rI1111E';. (C:~Z~:~b:lir~- uilit IIIe-?; L~~:iniv ran.,n z:te;
Garr1SUIl verv stony Ioam, 0 to 20 percent slopes not in .1 woucllaii(I group) ~
iCrE' --''his soil Iloldzz 1E~:z t11,111 ~ inclie;, of «.Itel• t}11t. Glenz•ose silt loam, 30 to 55 percent slopes (C-',.-T")--
1)):" C:111 11=E. .111C1 1G ]s L00 SCOllt' t0 ~)t' Cllltl~';lCeil. :L. soil h.lS a slli•fnce ]:11'el' 3 t0 n 111CI1E's illlllllel CI1~111 i112i Of
•,rli .is 15 percenc of =ome area- consists of other CT:lTll~on Glenrose cilt 10.1111. ro 20 percenc• slope-. Surf.lr.•e- ru~l-
Soil_z, ancl a; mucll ;1; 2, pei•eent is iilade ttp of zriinite off is r.lpicl, ancl t?ie erosion liaz-a.rd iS ;evere. _Lbotit 3
outci•olr. perceiit of some are1s consizts of Pernlii'l or De.1i•rroil
'1'hi: znii is ii=orl toi• nrizi»n. tC;plbili'rv uiuc I"I.-o: soils. 'i'lli; soil i; ttsed on1v for zr.17_ill`T. (Capabiliz-v Sh.lllow r,liiV•e .-irc: iloc in cti ivoocll.U1Cl ni•oilp) ~ uiiit A"Ie-1; 1ortli Exposul•e i•;1i1ze -ite: ilot iii :1 «-ooci- :
I.UI Cl :1'Oll1) ) .
Gleiu'OSe SeI'ieS Glenrose aravellt- silt loam, 5 to 20 percent slopes :
(Gr6).-Thi; soil 11olil= fi'Olll to 9 inclies of w.1I'Ni• thlat
The Clenroze =erie; eonsizts of n•ell-clrai2iecl. mostlv plants eaii use. Siuall areas of $ei-iiliill :1nc1 De;lryton
»leclitun-texnirecl Soil~. Tlie-ze soils for»lecl uncler crr,lss soil; ivere ineluded in inappinm. ;
.uicl sc:lfkc~~ed pilie ti•cc: i~i g1,1ci11 till mised iii The ul~per Tl~is soil is u~ed iii nlucli tlie saine w.1~• ~l~ Gleiir~i-e ~ilt I
»;~i•t llaliv are.ls are nr.lvelly loam, 5 to 20 pei•ceilt Slopes; but v ield= ai•e less. ( C.li~.- ~
uilit~- unit I~~ c~ : I,oa m1- rall`e ~icc : no't in a «-oodl,~nd `
~~r ~«,n~-. Tlie-e zoils :~re nc.lrl~- lei-el to ~~ery sceep. 1'lie
1i11,1l~l~i•ecil~it:~Cioil i; .11»tit 21 inclie~. :~iid~ihe frost-fi•ee ~l'~~ll~)
se.ison is about 13.3 d.ivs. Glenrose gravellti- silt loam, 20 to » percent slopes
Clenrose =oils arc u=ed for crrain. pea,, lencil" i-ecrec.lbles, (GO.-'I'hi; soil holda 7 to J inches of «•atcr thac p1.1i1ts j
:11 t.lll;l. ~il1Cl r1':1~~. }'nl' (Y1';t`/.I11!j. C.lll i1:C. SLll'r.ICC 2'lillOit ]s I'.11)ICl, and tlie ei'nslo11 11.17al'd
Gleni•ose silt loam, .5 to 20 percent slopes (GpB).-`i'liis i, sei-cre. Ziicluclecl in mapping were areas of Benihi11
-:f)Il Uc:CUI'~ 0]1 n'~:1Cl:lfi'cl t~~~1:111C1s 111 IlIC C:l~f-CE'llCl';il ~):11'f.0f Sllt)O;illl, ~QtOJJl)CY~'Clltslnl)Ca. ~
v
. , •
92 SOIL SLiRN"EI"
`l`:tBi.E i .-In,ki•l;refat-ion o% engtnecrilirl
Suil:ibilif.~• :is sourcr, of- ; 5oil fcatitrc~ a(Tcctin'-
•
SUit rvric•.. Ur t V lu'. ' .
1 r•:11-111 palicis
and n~:~p •mbu1-
'I'ol7-coi1 ~ S:tnci' ~ G r:t~-el 1 i I:uact fill Ioc:ition ~ Dikc, or Ir:vrcc
i . ~ ~ .
1:@4zCl'vOIC 11'C:L .
't . j .
~ ~ ' ~ , )t S . s ~ ~1 ~ , , g , ~ R ~ ~
r:~~Tuon (DrC C'ood to ~ii~- \ot uit- I';~ir fo oc.er:1 ic fo ~•er~• lii~.l. I o~~• t;,t~iiii•;
l~ ~Io:.crat~ to ~
DsC, DsD, ; poor. 1 ;~i~le. af~le. ~ooci. 4 snScentibilitv to , sernipervious to . iuodcr;lteli• i
DvOi. frost t,ctio»; mod- r impcrriou~ ' rapi~i a~criue- ~ .
• ! er:~tc; to moucr:~tcll- ~ ~~•llen com- ~ abilitr. ,
• ; r:~i;icl I~r•t•n~eabilitc~; i ~):tct~'d; lut~- ~ ~ .
~ low to modcrate ? mor?i~r,ite !
; , .
• sl!ricik-=well shri►►k-~~+•~•11, ~ •
~ pofc~nti:il. . purential. . ~
~ i -
L• loil:•i (EkS, t1G, F:iir------` 'Noi st:if- Suit:►bI~• ~ aF. Cood_--- to 1140i sii-- ~ I o~r .t:i•i1, ~ ' .
_ •uc.~:r:;ic lity; . AIoc?er:+teroverv;
E'D) 1t)le. c'e•~ili ~ ?,rfit-t- tofi•oz5t ~ sc>>::►:C']'v101iz i~~
~ . . ~ . . ~ , rapi;? ~)PI'illi:-
' L'1'i iltCl' :1Ci:Ut1 J 11]OGl'1':itC irJ ]lllj?l'TvIOl!? :lbllil '
tLnu GO ~ v,•rr r:ipicl j,ermr.- ; wlien co:ilv::st- . ' .
; inches. low to mof_- cci; lo\t- to i:e
v!'ati' c1ct'inR-r%i't'1: fiii:- ~ •
~ ' I)::CI:►1f?::~. 411'C'i~ i:llili'i:^,i
~ ~ . . . . :
, i .
l:mcli•:tt A!t lc,:tir. Fair----- ' Not .:ttica- ~ Npt =ui{:i- j Por,j•-----t Ver%• s+i~.:eeotibi!- . IuA-.- Cr:il>ii;,ti•: : \Iocierate 10 ii.c• tu fro:~t, nct:un; pcrvi~~;,i- modcrattAy !
; r~-r:tfZ tU 11100- CUllliiactcd: low ' ztow pcl•:>ie- ~
E er:+tCll\- ;-lo«• imrmt- ~ to niudci•azr • ahilir~: . ~
~ .
:it)Il:i\": 10tl" t(3 (IIUC:- ~ Shi'filii-c1Cf1f
E?':ttl' z-1:t'lllk-sive31 • pOfE•,iil:ll.
Iment;;il; G;ltur:ltec'.
ici WiI kcer:1nr.l s.pril=,. ! -
~ ~ • -
f
Freeman Fd 1' 1IP CO i N ~ > ' , ! ~
~ ~ ot. sttita- \Ct snit:~- Fuor----- 1.o> ~.ur.ii~ ro ~•c•r~• nigh i ~Iuc:er:ite scai.;:- \Iodera«lv Slo«•
Fa63, FaC31. • poor. ~ ble. i;~~~. to ~ ic~-; i»>~~ei•~•+.o::s I to ~-er~• :lo~~- ;
: irosc artion; i»oc!cr- I when ccmparz- i nerme:ibiiitv. ' • .
. . ~ i :uel~• ~l~~~~• to ~•tr,• 9 ed; ho~~• to !~:v~?-
=1L~i~- I)ri•utcitlAit,-; ~ tt•:ite ~!:i•it) 1:
1'!~~ iis 1!lO(It'C:liC' SwC•1l })Qil•i:ie :i;. j ,
=111-i::k-WE11 poret:- ' sUi1lz ci;iek
Ci:ll; =:►rurated in clrr.
spi•irg.
~
Carfielci (GaC3.1___1 F1ir to ~\o;, suit-a- TN'ot suit:l- Poor_____, '_k=o;erate to ver%- lii'ti 1lpcier:ite sm".i'- \Iocierate to °
.-ood. ~ ble. ble. ; ;usccptibilit y to frcst itr; iulpervittu> slon- perme- '
artiun; iuoc.cr.►te to nlien compacc- ::bility.
=1aw pc-mie:ib:Iicr; ecl; moder:3.z iu ~
nioderite to lii-rli high shrini:- ~
s:irink-:well poten- swell poteuti:il.
t::il.
i
Garriso GaA. ~Tot suit- Good belo~~• Escclleni•_ Sli~►h~ to no susccpti- ~Iodcratc stzv:l- ~Iodern'tc to •
Gg6, m, able. surface ~ bilitv io frost action; ity; perviot:i very rapici
Gn6). laycr. ~ mocieratc to vcrcJ n-lien cortl- perimeauiliiy.
rapid permcabilit•y; Pacted; low
,
low Slll'111Ii-swcll shrink-s«•ell
j potcntial. potential.
t
1
See Pootnote at end of table,
t•
~
♦
S.-POKA\ I•: COIIN-TT, «'ASHI1 GTON
93
~,rn1~~~t~li~-• nj e,~il:-C'c►~itiuue~l
i
~ ~uil fc:ifiires ciffecting-Coutinuccl
;
~
. F:11-111 poncl ; ~ 1 {
I ~
C'oiitinii(:d ; Agriciiltural ~
: I Tcrraccs and I iiow: _e clispo_al
draiuage ii
~ IrriI'a:iOn dix-crsioiis 1~~:~tcr~ra~-s
j _ ~•lCj~ Z~t':1(T1C:lt)ti~t'
.
~:.ttll);Zil{:It1C1lL 1 i
; r
i
N"cc•y 1ow shcar ~_l[odci•atc to A[otiei;ttc in- l,o%V rc:i~;t;utcc I,ow rcsi;tni3cc iti \Ioderzte to ;ci•y lo«- =1-.~:Zr
.Sirrn,tii; selui- ; uioderltely i:i!cc rate; ro crosion; crosion: lnccl- niciii•i•;ttelti• ; Strengtti: lf-)n-
; pei•violls to irn- ~ r;ipid pcrme- moderate 1114),lcr•atc to rrafe xx•ater- r; pic: pcrmc- ° lo;icl-r;i; r.: ing
: prrviuiis u•hcri ;t:;:lit~-. «•:►t~~r-lic~lcli;,g ilinder~trlr I~olclin~_ c:~~r~c- ~ :i!~ilir~-: riic~l- c•>>r,~ci; r:
Cnllil):1C!(~f,~: lllE-- ~ ~ ~ C:l[):1C?it'. 1':1})I~~ j)~'i'll!(- !i\': \'l'W•t:lTl~!l c' iO:l t1r:- ' Illi:C~~'1':iif- :(l
cli'liu c~tnl~i•r,•~~- • ' ~ :ki3ility. E difiici!It te ' e=•:t:eir r:lpkl , t►?r,r!er:lMy
ihili;r: lu~:• + . ' e<talAisli r•lpid ~-•~••~-•e-
> ~ -
=t:lioi;y. 011 Dmgooi: I cni~::c~r~ :~!iilirt•.
+ silt lo;tm. ~ "
;
i T.om- sliear strengtli, • ;.lfod^l':ILC t(1 Modei•:sk. to \[pde:•aiC rc:-Nt- liodci:ite rcAs, . 'Mocii~r..•,.z.:
~ io ~ Lo«• sheni•
~ se1111I)CI'i'lOU: t0 : vl'"• rapid I11pdCF:l[C'b" :lRCC t0 CI'0- .111CC t0 CPC►;tOll, l',':t' r;17)2C, . sI1'C11Lfh; :??OCI-
! imqx-rviou= n-heti ~ pcri;ZC:iUility. rapici inmke sion: madcr- nnodcrstc n•atcr- ; pcnn:.,bilitr: : cr:ttr to i:?~•:~
' COlil~):tl'IC'Ci: ~i!"ttt l:lt(:: ::l~lC~l'T- :lCl' .t, t`Y • ~J_ ' ~ ~ -
~'e1'' IIOICIII C:1- t.1 ~:i•.'! ~
' CO71' )!',•=S11)liliy. : :ICC ~ ~ ~ iC , 1Q:tf~-C:l?';:3!:~
~ :,t)1~ )!'lltl'- ):1Clt\': x'f•~~~~t~~ _ e•.r; rr .
. f ~ 1 .:.t•. . oldin~ r:~p:ii:it~-. •~od-
• low C;!- ~ ability. ~ tiou rlilTiculE to i c:1;3: ci<<•.• cr:ice tsi i-•_°~-
~ ~~t:il~li:h exrc-p; '
1':tl)Id 1)er:"n,-'
' Oil 1:IClln:l ~I~i :1~)I~ii .
~ f 1 U:1111.
Vcry 1o'x dicar : \Iodc:r:uc, to , -Mor1er:iic ri) ; \i06.1:11'. 1't,t- ;i 1 Ioclci•ate rc_i.r- to
~i,' -
c~i ~•1'~• 10«- i
_ silvilpil: !lllp::l'• , lllOCll'l':ICCly ' 18~~dc~•:zT.'~~ ; 1lll'e iQ f.'1'0- ; .t11CC CO l•COsIOiI: 1ncYic:':licll' ' ziivtlgitl: :Pnd.
~ \'IUUS \l'tlC11 CQIll- ' dp:C pCClllo ~ sWl\" I'ii:1kL' s10n: mf)dt:t'• ~ l'C1')' h1`,h R':lieP- ix-1'ttlC- Cl':lCl' TO lO-x
• ]):ICCr'CI; I110(1eP:1L8 ~ Wlliy: mli- i !':LCe: vCI'1' ( aIi' jc Illll(OC- ~ h0M111g C:l)):le_ .,;:aE-t-:v1,1.1. ]O:Id-C1I'I":i•?g
~ to tiiqh conipre:_- rarcd in win- ; higli waccr- au:ly =1uw ! itv; exrr.•pc ior WOn~r•lier-l►o1d- c•Ip:►rity: n1od.
ihi!irr; modeiate tfur anrl ; hoIdhi` c:1- , pers,l';1bility. ~ s:ilt-tolcr;:»c :ng c: pZCin-: - iT:ltA' to
s:1bIIIP'; C1':2l'kr . `p!'!!!g. { j):lilil'. • ~ sj)l'CICs, \'l'g,(•I:1- S:1 ii1'Cl ]t! G1;tPv1y
wlicn drt-. *ioi; c1iFi:cult to ' n-ii:te:• ; nvl pr•t•me:ibilizi-. •
.
\"err lo;r s1ie:1r ~ 3Ioilei:itcly ~ 11odvriitcly i \Ioder:itc reAsi- llocierate rc.i=c - ~ A '
~ Ioc:.::•::;~_~1~- ~"e.y low
~ :rren-tli; U:lprt"- ~ ~ZIow tu x-cry ; ~luit- to -1ow anec• :0 C1'n- 111CG t0 C•ro-;on: • slon' :n veio- aircn,tn:
:otl_
, ~'i01t; ~~'~1Ctt cOill- ? Sl0~~' t)('1'- ; i1fCl~:t? ;:1ti': ?Ji:: t~l(lllr~t'- s \'C1'\' Ili`,11 v~',,1E1'- =1v~~ 1)~:'!11C- C•]:nl~_~Ion:
)):ICi:'f3: i11eCttiltll i abilit, : sa:i;. ' v(_-ry high a!l•Iy ~lr~Nl- to ~ holding r•iirie- •,-~~1-3- l"iF't't'lllg c::•
COlllt)1',:`slblliiy: 1':SICd 1Fl ' \1;lt(•1'-:?i11d11':'' ~'~•1't Jo1C E)t'J'- ~ 1(y: \'l'J('t:lliV:i . !:3yq: :'':lll'I'' 1)'lC1I\": i':K
]11Ufic1':lil' si:lt,lil- Fi)!'211~ ' l:tp:1Ciif'. E lne;If)l11[+. i f:IlPlt' C;'ts\' t0 eCl- . ~•I':1Tt~13i!~:*' LO
~ IC1': sQI~S Ci::C~i • ' (?s[:1~)ils~l. ' - .
~~=lien di•~-. ~ . ~ p-'=':t~- =:llu- ~•e~•~• ;lo~:
rx:-:,:i i:t pvriI I i•:l:):li- y.
~
• Very lo«- s}ie;ir \[or.lerate to fRoa- inta4e ~ lloclcr:ite i•esis, Itocleratc res6t- ; Moc:er.^.ie to ~ l'cry 1oit- ,ti._-ni•
strcn;cli; inipur- slo«- pcrmr- i•ate; I-err j :Liice co cro- nnce to ci•osion; : ;Wu- nei•me- . s,i•eugct:; :?iod-
~ Viou: NA-tieli coin- ;ibiliiy. liigh Irnter- ( sioit: inocler• vci•}- liigli + 7t3ili;~-; verr ; erate lolc!-
)rartcd: mcciium to liolr.iii?, ca- t :►te fo slow Nv:itcr-lioldiiin ~ lIla:i w;lter- j carrying cc• -
I, high rompi•e,sibil- parity. ~ permeability. c:ijracity; ; holr:ir.z ca- I pacity;ir_c-d-
~ ; ~•e;;et:icio~~ t
! ity• modcr:lcc ' prrl.c~•- ~ eracc t~o ;lc~:~-
' stlbilic~-• suil ~ f:lirl3• c:ls~' L4 ~ ~ pr•rine•ibili-•,-.
~ ci;~cks a•tieii drr. j cstsl~lisl~. i • .
i
I-ligli shenrscrength; _ltoder:ttc to ~ T;apid iiitakc ! 1Iocler:lte rr_sist- _llodcratc resizt- ! lIoder•wte to I°Iigti siic;ir
I7crrious AN-lieii x-ery r:ipid r:ite; moder- ; ;lnce to cra ance to crosioii; ven- r:zpid ~ strengt}i; iii;h
~ comp:ietecl: :li;lit perineabili<<-. ate to lon' i sion; cvocier- uiocler;it~e to lou- pErine:►bilit~•; ; lond-c:lrr~-ing
compressibilicy=; ~ w;ucr-holcliug ate to ver~ Ivater-holding nioc?eraie to ~ capacit•y;
modcr.tte sta- cnpacity. ~ r,ipici periiic- capacity, vege- low R-ater- ' moderate ro
bility. ~ abilif t•:►tion clif6cult ho1~.3ing ca- ~ x•cr~• i;zpid
~ ~ to est:lblish oii pacizy. ! prrmc:ibiliz~-.
~'er~- st•ony lo:tm, ~ '
f:iirly c:isy on ;
~ otlicr soils. f
HAHN ENGINEERING, INC.
E. 55 LINCOLN RD., SUITE 102
SPOKANE, WA 99209
(509) 467-1550
L 1 -1
eATE lzz-la-3
r ~
To SUB.;ECT -1~•-/~a~r1r~~~i
~
L - - - - . . . - - - - - -
- RECEIVED
- NOV 2 4 1993-------
SPOKANE COUNTY ENGINEER
- - - -
OF WAS;..j,y - 7
.
/O .S O 10 z 0
,
_ S CA L E i N F EE T 28021 ~%J~5
NAL :
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i NANN ENGINEERING N 8623 8 DIVISION SPOKANE, WA j
OFFICIAL PUBI.(C OOCUMENT
SPQKRNE COUNTY ENGtNEER'S OFFiCE
OPROJEGT # 'SP $3!57
SUBMfTTAL #
.RETURN TO COUNTY ENGINEErP
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Sf'Oi{ANE CDUNTY ENGINLER'S OFFiCE
ORG - NAL
PRQJECT # ~P ~
SUBM!`iTAL # ~1r
FRET~~N TO COUNTY ENGINEER
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0FF1GlAl_ PUSI_IC DaCUMENT
SPOKANE COUNTY ENGitJEER'S OFFfCt
OR'IG NA.
PROJECT 9 :sP 835
SUBMITTAl. #
RETURN TO COUNTY ENGINEER
. ;
~
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SCALE I N FEET ~0,29-43
V~
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F~►STE~'~
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I • M~ DRAtNAGE EASEMtNf
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51.7
TYPE "B~~ ~ o . t
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5' FUTURE ACOUISTION i
~ _ -
• ' . ~ . , ~ : I v ~I
2'L 81. 55 ~
~ ~ - 2&' ~
E DGE PAVE MENT ,
3 FOURTH AVE. ~
~
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i TRACT i SH-ORT PLAT NO 835-93
, HANN ENGINEERIN6 N 8623 B DIVISIOd SP,OKANE, WA
~
OFFiC1AL PU6LfC DOCt1MENT
SPOKANE GOUNTY ENGiNEER'S OFFICE
OR I ~ -NA.
PFiOJECT ~ ~ ~ -
SUBMlTiAL #
RETU RN 70 COUNTY ENGINEER
~ •
Hahn Enp*neenng, Inc.
East 55 Lincoln Rd. • Suite 102
Spokane, Washington 99208
(509) 467-1550
FAX (509) 466-1729
iNovember 19, 1993
~09~~
Mr. Christopher J. Reich
Spokane County Engineers - Public Works Huilding
W. 1026 Broadway
Spokane, WA. 99260
RE: HARDING PROPERTY - 3rd SUBMITTAL
Dear Chris:
Please find attached the latest submittal of the Harding Property
project. I believe you will find that all the redline comments
have been addressed. Should you have any questions, please don't
hesitate to call.
Very truly yours,
HAHN ENG I PlEER I NG , I NC .
Ken Geibel, E.I.T.
Associate Engineer
~ .
i
T -
S P O K A N E C O U I~7 T X
OFFICE OF THE COUNTY ENGINEER • A DNISION OF THE PUBLIC WORKS DEPARTMENT
Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., D'uector
Date: I~•Ilo•q3
SUBJECT: 5~' e
Gentlemen:
A review of the road and drainage plans for this project has been accomplished. Areas of
concern to us are indicated in red on the attached plan set and calculations marked
"ORIGINAL". Please make the corrections and resubmit them to this office in order that
the review process may proceed. When the plans are resubmitted, xnark all chanLyes on the
revised print in color. Please note that the plan set and calculations marked "ORIGINAL' are official public
documents, and must be returned with the revised plans and calculations. Review of the
revised plans and calculations will not proceed until the "ORIGINAL" set is returned to the
County.
If you have any questions about this review, please contact us at 456-3600. Tl1ank you.
Very truly yours,
Ronald C Hormann, P. E.
Spokane County Engineer
• ~C~~
~
Christopher J. Reich, E.I.T.
Plans Review Engineer
encls: MAev,• uPS _ ; - - :
V-E CoM ~ v► EW
cc: project file
. , . . . • . . ~ _
reviewer (comments only) - _ - - _ ,
W. 1026 Broadway Ave. Spokane, INA 99260-0170 (509) 456-3600 FAX (509) 456-4715
k\w\f\reviewltr
' - - - - - -
SPGKANE COl11VTY OFFICE OF COUNTY ENGINEERS
CALCULATION SHEET
Description: fa>V\o~~ pLA-' F~BS Project No.:
Colc. by: G• Date: T6tle:
Checked by : Date : Sheet of
Notes :
~~t~iS ✓I. TJ E.vELAC~E~R-S AP~vp.L 1S N~~t~Ep.
v~. UArdEl- 'TuE 'D~A1 NaGE ~L~.SEI'~E1J"T OtiJ --T-12AG.T ~ o•s
3• MY11~~2. uEEvs G~ANGES P~S w F~. .
1.~c f!. T►~ E l~o¢.-c1i •~rt ~l t~r~f~ n1S tp~1 SE E M S / N A►CC~~a'T~' . I~
c>o'T "Tb 79
~
2. ~ p'EG 1 F`~ Sor.=> Fot2 -TZ-1E S"A.l..C- f3oT7DM aN r=> St~c-CIS.
Np'T~~ ~~W4i Na~,E f~porL~t 1~~rS ~EN A~OV -
P,q, ~
wal,"u,
~ 10 15- o io zo
` SCALE I N FEET -0 Lij f~~o-29-43
? 8421 ~ ~
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10'
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o on~ QFFlCIAL NUBLIC DOCUMENIT W SPOKANE CGUN1Y ENGINEER'S CaFFICE > ~ OR~ ~ a G.~~a~ W' °D ~V m P€~~JSECT # SF'~3~~_
;
SUBNrTTAL 4
0 ~ co i o '
,
~ ~ o R M RETURN T0 COUNTY ENGiNEER '
3
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25~ 3U!! DING SETBACK 0 `
~
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~ DRAINAGE EASEMENT yl ~
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TYPE so 8f ~ o I '
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E OGE PAVE MENT
~ FOURTH AV E.
i 7RACT t SHOR-T PLAT NQ835-93
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NAMN ENGiNEERIN6 N 86523 B DiViSlO[f SP,OKANE, WA ~
i
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00 Q 28021
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OFFlCIAI PUeLIC DOGUMENT
SPOKANE COUNTY ENGINEER'S OFFiCE
0 R ~ G `Nh'
PROJECT #
SUB41TTAL
RETURN TO COUNTY ENGIiVEER
HA~-w c~ ~ rN cc~ ~~ti1~ N. 862 -3 "13 "Div1s1o1v ~ P29K1-, r•J E wl-.;
~
~
~ -
S I~ O K N E o~~~ _ C O U N T Y
OFFICE OF THE COUNTY ENGINEECt • A DIVTSION OF THE PUBLIC WORKS DEPARTMEN'I'
Ronald C. Hormann, P.E., Counry Engineer Dennis M. Scott, P.E., Director
Date: JI•Ilo•q3
SUBJECT: sP 8ZE:>
Gentlemen:
A review of the road and drainage plans for this project has been accomplished. Areas of
concern to us are indicated in red on the attached plan set and calculations marked
"ORIGINAL". Please make the corrections and resubmit them to this office in order that
the review process may proceed. When the plans are resubmitted, mark all chanees on the
revised print in color.
Please note that the plan set and calculations marked "ORIGINAL' are official public
documents, and must be returned with the revised plans and calculations. Review of the
revised plans and calculations will not proceed until the "ORIGINAL" set is returned to the
County.
If you have any questions about this review, please contact us at 456-3600. Tbank you.
Very truly yours,
Ronald C Hormann, P. E.
Spokane County Engineer
~
Christopber J. Reich, E.I.T.
Plans Review Engineer
encls: M~,e,e-- uPs
~ EV 1 E~l IAMN~~ N"T,~
cc: project file
reviewer (comments only)
W. 1026 Broadway Ave. SI:)okanc, WA 99260-0170 (509) 456-3600 FAX (509) 456-4715
k\wV\rcview.ltr
~
SPOKANE COUNTY OFFICE OF COUNTY ENGINEERS
CALCULATION SHEET
Description: -'::-)NOe--~ P~~' 83S Project No.:
Calc. by: G• Date: xe ~ q'74N Title:
Checked by : Date : Sheet of
N o t e s
= ~~~a~. Pa.cn~,-M
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ECPIRES ~
HAHN ENGYNEERIT~G
N. $623 "B" DIVISrON ST,
SPOKANE, WAS~INGTON 99208
467-155U
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BOWSTRING METHOD (TEN YEAR STORM DESIGN) PR0.7ECT: SP 835-93
OCTENTION BASIN DESIGN BASIN= A" '
' REVIEWER= PREBLE
NUMBER OF DRYWELLS PROPOSED DATE= 10-Oct-93
0 Si ngle (typ 1 Double (type B)*
220 Pond floor area Total Area ( calc (see H1 ) 1.41
Tirnz of Conc ca].c ( see H1 ) 36.27
Composite "C" ( calc . ) (see H1 ) 0.28
Tirne of Conc.( min 36.27
Area ( Acres ) - 1 .41
C' Factor 0.28~
Impervious Area ( sq . ft.) 3200
Volume Provided (cu. ft. ) 208= 135.1 storm (tot 325
surface: 325
' U/g 0
Outfilow ( cfs ) . 0.0018332 0 1
Ar ea * C" Factor 0. 40 ,
#1 #2 #3 #4 #5 #6 #7
Ti(ne 1"ime Intensity Q dev. V in V out Storage
Inc. Iric. .
(min. ) (sec. ) (in./hr. ) (cfs) (cu. ft. ) (cu. fit. ) (cu. ft. )
( #1*60 ) ( A*C*#3 ) ( Outf . *#2 ) ( #5-#6 )
36.27 2176.47 0.89 0.35 1030 2180.46 -1151 .
5 300 3.18 1.27. 509 300 .55 208
10 600 2.24 0.89 717 582.78 134
15 900 1.77 0.70 850 716.13 133
20 1200 1.45 0.58 928 795 . 08 133
25 1500 1.21 0.48 968 835.63 132
30 1800 1.04 0.41 998 866.57 132
. 35 2100 0.91 0.36 1019 887.92 131
40 2400 0.82 - 0.33 1025 894.07 131
45 2700 0.74 0.29 1013 883.00 130
50 3000 0.68 . 0.27 1012 882.59 130
55 3300 0.64 0.25 1029 900.02 129
60 3600 0_61 0_24 1054 925.16 129
65 3900 0.60 0.24 1108 980.08 128
70 4200 0.58 0_23 ' 1140 1012.95 127
75 4500 0.56 0.22 1168 1041.04 127
80 4800 0.530.21 1169 1042.31 126
85 5100 0.52 0.21 1209 1082.90 126
90 5400 0.50 0.20 1222 1096.66 125
. 95 5700 0.49 0.20 1256 1131.28 125
100 6000- 0.48 0.19 1288 1163.51 124
DRAINAGE POND CALCULATIONS
Required grassy swale pond storage volume
= Impervious Area x.5 in./ 12 in./f t. _ 133 cu_ ft.
provided = 135.1 cu. fit.
ORYWELL REQUIREMENTS - 10 YEAR DESIGN STORM
Maximum storage required by Bowstring = 208 cu_ ft.
gOWSTRING METHOD (TEN YEAR STORM DESIGN) PROJECT= SP 835-93
. DETENTI0N BASIN DESTGN BASIN= B"
~ • REVIEWER= JWP
NUMBER OF DRYWELLS PROPOSED DATE: 05-Oct-93
1 Si ngle (typ 0 Double (type B)
200 Pond f .loor area
Tot,al Area ( calc (see hl1 ) 0_ ll
Time of Ccnc.( calc.) (see N1 ) 5.00
Camposi te "C" ( calc (see H1 ) 0.55
Time of Conc rnin ) 5.00
Ar ea ( Acr es ) 0.17
C' Factor 0.55
Tmperviouls Area ( sq . ft. ) 3210~
Volume Provided ( cu .ft 208 = 141.6 storm (tot 371
surface= 366.5
u/g= 0
~ Outflow ( cfs ) 0.0016666 0 0.3
Area * C" Factor 0.09
#1 #2 #3 #4 #5 #6 #7
~ Time Time Intensity Q dev. V in V out Storage
Inc. Inc.
. (min. ) (sec. ) ( in./hr . ) (cfs) (cu. ft. ) (cu_ ft. ) (cu. ft. )
. ( #1*60 ) ( A*C*#3 ) ( Outf . *#2 ) ( #5-#6 )
5.00 300.00 3.18 0.30 120 0.50 119
5 300 3.18 0_ 30 120 0.50 119
10 600 2.24 0_21 147 6.43 141
1s 900 1.77 0.17 166 25.73 140
20 1200 1_45 0.14 177 36.92 140
25 1500 1.21 0.11 181 42.14 139
30 1800 1.04 0.10 185 46.35 139
35 2100 ~ 0.91 0.09 187 49.26 138
40 2400 0.82 0.08 192 54.23 138
45 2700 0.74 0.07 194 56.77 137
54 3000 0.68 0.06 197 60.62 137
55 3300 0.64 0.06 204 67 . 48 136
50 3600 0.61 0.06 211 75.54 136
65 3900 0.60 0.06 225 89.41 135
70 4200 0_58 0.05 233 98.70 135
75 4500 0.56 0.05 241 106.86 134
80 4800 0_53 0.05 243 109_32 134
85 5100 0.52 0.05 253 119.82 133
90 5400 0.50 0.05 257 124.62 133
95 5700 0.49 0.05 266 133.72 132
100 6000 0.48 0.04 274 142.26 132
DRAINAGE POND CALCULA7ION5
Required gi-assy swale pond storage volume
= Impervious Area x.5 in./ 12 in./fit. = 134~cu. ft.
pr ov i ded = 141.6 cu. f t.
DRYWELL REQUIREMENTS - 10 YEAR DESIGN STORM
Maximurn storage required by Bowstring = 141 cu. ft.
provided= 371 cu. ft.
~ - J
TzME OF CONCENTRATTON (minutes)
• Tc ( over land ) Tc ( swale ) Areas "C "
Ct = 0.15 L2 = 380 0_07 0.90
Z 1 - 33 0.10 0.30
L1( A) = 0 Z2 = 33 0.00 0.00
N(A) = 0.4 B= 0 0.00 0.00
S(A) = 0 n = 0.3 0.00 0.00
s = 1.6 0.00 0.00
Tc (A) = 0.00 d = 0. 5 0.00 0.00
Total A Comp "C"
,
L1(B) = 0 Tc (qu) = 2.55 0.17 0.55
N(B) = 0
S(B) = 0 Tc( A+B 0.00
Q=C*I*A= 0.30
Tc (B) = 0.0
Tc( tot 5..00 Q( est = 20 . 50
Intensity 3.18
A = 8.2S
WP = 33.0151
R = 0.2499
V = 2.48
Tc ( total Tc ( over land 7c ( gutter ) Tc( gu 2. 55
Tc ( over 1 a nd Ct*( L 1*N/5~0 . 5)"0 . 6) Q( est 20 . 50
Ct = 0 .15 '
L1 = Length of Overland Flow Molding = 13.54
N= friction factor o-F overland flow (.4 tor average grass cover )
5= average slope -of over land f low
Tc ( gutter ) = Length ( ft . )/Velocity ( ft ./sec . )/60
B= Bottom width of gutter or ditch
Z1 = inverse of cross slope one of ditch
Z2 = inverse of cross slope two of ditch
d= depth of flow in gutter ( estimate , check estimate with F.low )
Area = d*B+d~2/2*( Z1+Z2 ) ,
Wetted perimeter = B*d+( 1/sin( atn( 1/Z1 ))+1/sin( atn( 1/Z2
Hydraulic Radius = R= Area/Wetteci Perimeter
Velocity = 1.486/n*R-.667*s~.5
Flow = Velocity*Area
n = 0.016 for asphalt
s= longitudinal slope of gutter
Floor outflow = ( .36 "depth/hr . per sq.ft. floor 1 ft depth/12" 1
' = 0:00000833 cfs per sq _ft . of f loor area
• ON-IRH- 2/15/88
US Department of Agricultur~
Soil Conservation Service
DESIGN WORKSHEET
for
Trapezoidal Channel Section
prepared for
1--i d'-'"~ FR M:°_:► '31 il''-4 C-:~
in SPOKANE COUNTY, WASHINGTON
~
Designer : JWP Checker
Date - = 10/12/93 Date
BASIN "A" 9PAEE .Li"tCP
Slope = 0.0133 ft/ft Hydr Radius = 0.20
` n' value = 0.030 Area - 0.55 sq. ft .
Capacity - 1.10 cfs
Velocity = 2.0 fps
Sideslope = 3.0 :1
Bottom width = 0_0 ft. Depth = 0.4 ft _
~ ;xr ~ ' =c~ cr~
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-7
OH-IRH- 2/15/88
. US Department of Agricultur
Soil Conservation Service
DESIGN WORKSHEET
for
Trapezoidal Channel Section
prepared for
• ~~~ti ~II:~ fl~~
in SPOKANE COUNTY, WASHINGTON -
Designer = JWP ' Checker
Date = 10/05/93 Date .
' BASIN „B„ S+4AL--C-
J
Slope = 0.0160 f t/f t Hydr Radius = 0_ 12
` n' va lue = 0.030 Ar ea = 0.20 sq. f t.
Capacity 0_31 c ~ s
' . Velocity = 1.6 fps
Sideslope = 3.0 =1
Bottom width = 0.0 fit.
s Depth - 0.3 ft.
i ,
. ~
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F (3~
-
~ z to
c
~
' OH-IRH- 2/15/88
US Department of Agricultur
Soil Conservation Service
DF_SIGN WORKSHEET
for
Circular Section
prepared for
F-1 A q==K: C-3 U-- P4
in
SPOKANE COUNTY, WASHZNGTON
Designer = JWP Checker
Date = 10/12/93 . Date
*~*=K*~****~***%K=K*%~:K~~*%k*=K***~*~k*********~~*=K**%k~**~~~~~*~:~%K*~~:**~=K=k*~
CULVER-f" @ TURN AROUND
51 ope = 0.0133 f t/f t Hyd r Rad i us = 0.25
` n' value = 0.024 Area , - 0.39 sq. ft _
Capacity - 1 _ 11 cfs
Velocity = 2.£3 fps
Diameter = 12 .in.
Depth of I'low = 6.0 in_
. ~ 7
,
F -
-
' ON-IRM- 2l15/88
US Department of Agricultur
Soil Conservation Service
DESIGN WORKSHEET
f or
Culvert Evaluation
prepared for
d--~ ~ F: N~ : > 1"4
- in
SPOKANE COUNTY, WASHINGTON
Designer = JWP Checker
Date = 10/12/93 Date ,
CULVERY @ TURN AROUND•
` n' va 1 ue = 0.024 Capac i ty = 2.8 cf s.
Length = 50 ft.
Diameter - 12 in. Inlet CONTROLS
Projecting groov,e edge
Elevation of headwater = 2.7
Elevation of inlet - 1.6
Elevation ofi tailwater = 1.5
Elevation of outlet = 1.0
1
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Tt'pl'l''sC11t;lCIvC p1'Of1lo- : y V \'el'Y I1aI'Cl. sC1Ck1"; 2111(1 1~laSf1G. The 1111111U1l'p1'l'C11)1CaC1n11
~ 111C~'~, 1111C1 tll~ ~rosr-f~'E~ ~e.1~011 1S ~t~)~111C 1-~~l .
l) t0 i iuChe3. t'Er~ d:lrl: gr:t~'1s11-br0~t'll, fl'i.tUlt,~ silt 10:1i11; 1s 18 t0 2
;C:llll1l:11' ~E1'ti~_LL1Yt'; UE'l1tC;1l. d a vs•
~ ro 14 iticiie~~. brown. friclble ~ilt lo>>ii, ^racisli bi•n\va 1t 1 Tlie~ s~ ~ 1
~ e~il_ ~li•e ti,e1, ~ Ill~iiii]~• f~~~• r,~ii~, .11r;tlt,i. ai~~, ~~~•~•;1--.
a~~l~ri~ or' i^ :nc~es: nott,~•;>>. Garfield si1t3- cla~-loam, 0 to 30 percenf slopes, se~-ere-
1; ,;i iticite-. _raci~U-broi~-n. firm silt lo.?ni th:tt brc:il:s iiito I-veroded CuC... ~ ~ ~li~ ~
z- ro •'-i,~~_?~ ~~_:~~:~s: 11Qiltr;ll. I ).-T~ ~oil occupie~ rli~ n,ii•i•o~~- i•iil~_er~~l;=
:o 72 iiicL_-. clar~:-bro~.-n, ti~•iu silty rfa~- io.i,v. alu~ost sitt 111i1 tippei• ~lope~ c~il ]oe~~.ll ul~laiiel~ in r1;e ~e~i~tlie,l=re~r1
Itotll : i)t'E•:1?:z: zi1Cb pristuS 1 t0 111c1iL'a \vitle, :luil tI1en 111t0 1).11't Ot Tlle COlU1Cy. MOsf slopes .lYe behveen 8 .111(j '!1.) 17CL'-
:lf~`~~iar ceiit: cl few sm.Rll'.ii•eashave ,lopes of nioi•e rh:l1130 per"Onr,
Tht z-z111'tt1cC Sriil. \+';1C'll 11"101st, T.111aC3 f1'0111 1'C'1'v Cl.ll'~c a11C1 sO111Q ]1i1T1'Uw 1'1ClYeto1>> Il.l1' s]Opea Oi 1e~~ Ch,lll 5 1)et'-
zr,ix-:=h broNvn u.; ct:ti•l: broNvil iil colar- The texttli•e o# the cent. Repre-enc.liii-e pi•ofile:
~U1)?Oil 1',111ze; i.'~~111 31e:1~'~' sllG IO:lfll lp ~ilt~- rl.l~' IO:llll. 0 to .4-z illClle~F, d:lrl:-brOtcll, fit'lll Silfv Cllr 10:t!>i; jr.^,iluilr sirt'.='-
nit.ch as 7. I;ercenr ot z01118 :tl•eas consi-zfs of L1rkin, rure : neurrat.
Do;lt't-t011, O1: ;evCrcl v erc)deci rreetli.lll s-OllSz. ~7, ti? 4'~, iiiCbe-_-. C11i•1:-brown, firiu silic clac, re110«-iz>>-l'rr)xvti
!?i•i;~!;:
1'ai~~- i,. a rtlnd,~i•:ZreIv well drainecl Soil th,lt h1= .1 ver}T ;:iltv cl:tx- loain 1)elow :t tleptli oP inelies: itzt.:,
prki,,; 1 inc>> co 2 iucties w1(lL' :lllit tllf?]2 1I1L0 .lti~tit:ic•
~1c~n•1t- l~ei•l~le:llJ~l~ =u1)=~►i] :lud is satiti•:lce~l tor shoi•t 1~eriods ~ • , • . -
IO 111CI1 T111C1i, C18~' fllll73 CO:l ft11e j)T1~ItJS .121t1 112zlii::'
iC ~lOr~.k ;1~)ClL1C I4 f 111C~1k- Of \\':1fET T~.~1L ]:~lIZ11tS 1J1x}:4_:; ilt'ittl':il.
c:11i ll~. i'.y IC 1~ 2:1=y Cc) %vql'k escept when s.1i111.'.ifeCl. r00t5 4S t0 60 111C111s ve11Uwlsll-l.il'0w11, 11Pm 11@lt't' :iilt 1081ll : l.t'e:1l:s
~ inco l~ri~tn~ 1 co ? inelies wide atid tlieii ii:co :tn`til:tr l,ltic+:s
peiierrclre ti-,e lnw=er 1.1vei•-, i»aiuly along ped face:. The 14' j;, ~;i i„cli tliicl;; neutrnt. ~
ttl'Cllii~" l~ lllt'C~ltii11. ~ul'f:ICC I'L1110ff 1s 1l1CClllll'11. :lllil tl~e
~1.1"/.11'C~ 0~ e1'O~IU11 i~ 111~~~1C'l';1C~. ' Tlie tesrtire of tlie upper si~bS011 1s Sllit' Cl~ll' OI' Cl;11". .
-1toi•z thali f15 ~?~i•cen; nf fl~~ ~c~•ei~~r~' Ij ctllii~•~~~ed: tlie illtlcli as 7.1) perceiic. of sonle Ri•e~1s conSitits of =1flien~~. 1;~r.
re=c i- i;li•m «-oc;~iiot-. 1`-lie:~t i; tl~e cl~;et c~l~ll crop. It ~ er. Perce. ar P.1]nu~e ~oil~. ~ .
i~ ~r~~1~-I1 il1 i•~~t,it:u~~ „-irh 1:~e,1; ~111C1 :1 o•ree~l-3»~Z~lureerop Tlai; =oi1 i; ~~-ell ( lr.linecl :i~icl ~1~~~-1~- pc~~~ne;~bl~. Ir hol~l~
~~1' :1? cl 1'(lfclt iGil. Q(11('1' ~1'C;~~~ `1'0~~'ll .lTE 1~E,13 ?o1' ~-C-) 111~:~1E~ Qf 1~.1Ce1' fl1,lP ~1l.111f~ Cilll ll::v. I1' l;
.111cl 1)It1zi1C Nx-lien wQC: Cp11sC(ient1v it. c ,Z11 j)
~ i•ti~~;~,-;i[,~t!
;1iirl E~a~•Ji~~~: l~at-;_• ~~r :~11~;tltti for 1i;~~- c;i• Q:reen i~Zlnurc: ana . . . lt . , - -
_~l';l-? :~~:'~+l•U~. titI'+". l'~,l;tllre. :Lll ;l'~t!;1 ,lil;l ,'1'.1== ~:i'01)5 o'i1i- ,~-~cl~~n :l 1';1i11E1' lltll'TO~\' 1':112~rt' 0~'
1•t.-~~~,;-t~; i~1 ~?~i1'~:_c~:?. ~.~~?'illile'~ 1'C_ `filli~ CO ~lll~'lli'. 1~_,l l;l- •-`r'-'~'r 1~elietr:lL1Q11 1s t"er~- cleei).
l;?il?' ~~'1'Ull]1 it'~i 111 ;l 1'.11:^'~' ~1Tt?~ ll!'I.lCO 1'i11101~ 1~ 1'.ll)ill. :uld tl►e Jiaz.ll'Cl Or i:li'i1ii•!' ~?i'i;r?r`i:
I' i•eemaii silt loam, 5Lo ?0 perceiit slopes, se~-erely ia =e~-ei•e. ~
@1•odecl IFC~~;.-~~~~1'l' Lj;,U? Z"-0 l~erceiit. ot tlie slll'f~1C' 1<11"Ql' ,r41'E'• illclll f~j 11e1'-:e11C Of tI1C ac1'C.1"e l:
oi =oil ~i,l~ i,"n re~i~o~-ecl b~~ erozion. Fei'C1Ili~' 1= me- Oilier 1e oled ^oQr`]lllie l~irle~- .~i~cll(l ~fielcl c~eil ~.1_~ll~l
r1-< i~~ lr~',l-. -til•lru~loi' is 1'Fl~)1(l. ;;nd tl~e 1~~:1z;i1•d of . 1
cr~)_1~~1 i~ :t~-ere. _t~ intirli a, It1 l~creenC. ofi suizie ,1~~e,1s crops i•e~poiid to ititroge~l, ~ultui•, u1d I~h~-1~llar~~-. ~ C;1-
of uneroded Freeiuan coil,. . pabilit~- un~t I~'e-~ : llOi• 111 R• ~ti"OOCllR11C1 yrou1~ or i•a►ize ~ire i
Tihe Saillc cropS itre zi•own .1s on I'i•eemaii S-il'c lo1m, 5 to
'!(1 ~iFl'~'eIlG z1G1)es. i?llC• ~"IP]ClS .lC(' lo1~'el'. (~.~,1~);11)llli\" tllllt IlxcZ1I1,Ci0I1 SerleSl
«-oocll.liid grotii, 5 : ilr,L. m ;l r.uige z:ite) The. G.1rri-son Serie; i; mzde up af :omewhat ex+.e--ii-el .
I'i•eeman silf loam. 20 to 30 percent slopes, se~•erely
eroded cC~}.-~lore T111n ~0 ~e~•eent of t.he ~u~•~RCC l~1 er
t dl•aiiiecl, o-r,l~-ell~- or ~COIl\' SU]I; ch~1t iorme(l ~irlder `rr;i~'y7 111 ~'1'lClill Ollt~~';1s]1 1211\QCl'lll tI1C lll)~~CL' 1~.11't ~~'ltjl ~'O~t'~111Ii:
~~i~ ~oil 1i.1~ l~~~eil i•emo~-ed ~r• ci•o~ioii. ~n~•f;lce i•un~f~ - `
is r~lpi(l, ;~ncl rlie ei•o-io~i hzizard is cex•ere. Inclticled Ill '1'1i. Tlie~e ~oil; ~re o~i iiearl~~ le~-el to n~oder~fel~- :;.eei~
>>~,11ipin~~ ~~-ere 1fe«-:~reis ofDear~•tonsoils. iel•1•:~ce~. Tlle :11111Ua1 precipilRtion i; 1S to incl~e~. .incl
the frost-free season is about 1 i 0 cla}-s. The -zamc ct•op: 1i•e zi•own 1s oit I'recnlan -zilt lo.lm, .ri Soils of tlie Cx.li•i•i-oil series are iitied for a vai•ief~- of
CO 20 pe1•~en't slo~?e3, btit. ~-ie1dS :ll•e lo~j-e~'. (C11),1~)lllt~' CTO~)3 :121C1 FlS ~~ll'111St@.lC~ :LIICl Sll~)lll~),Zll IAC~
. ,
unii II'c-~ : «-ooc1l.111C~ `rotil~ not in z.111g0 Slle) Garrison jra~~elly loam, 0 to 5 percent slopes (Gck.-
Tlli; i; tlie clominaiit soil in the Spol:aile Valley e<1sc of
Fresh Watei' 'AYal•sh - the city of Spokane. ltost slopes are between'3lauld 5
T're=1i Arater mcli•sli (Fm) coiisists o# sliallo"-, sivampy perce»t. representative profile:
cer~ fi•i;~t,te dr1~•cu3• to;u~~; ~raiiular
pond; aild of frili~es ,~i'01111Ci l;il;es t.hat lia~•e .L fltlCtll.lt111~ o st to ru 1;ctuirenc; lies, u~:~ sli;titly c~, ac;cL
NN-~lier lei-el. 7']ie ~-e~et.ltlOll consist; of tules, reeds, and
15 to ~ inclies. (l:trk-l►ro~rn, friablC ~'er~• gr;1~•ellr lo;lni ; neutral. ~
ruzzlie;. 'I'he=e are;ls :1re af little vstluc for gr,1•r,inn but ~ to CO inclics mulricolore(l s.u,d, bra~cl, 111d CObb1C5CUnt'S.
22r Sd ~ snoKANi_ coL -N•rY, AVAsxlNc,ro-N 19
1`]le surf.tcc Color. wlien inoist, r:iiiges fro»i verv d;irl; the cotuity. _lrozzt sIopes are betweeli G:luil 1:' pcrcvnt.
brown to lilacl:. 'Elie ie-xtnre af clle Snrface l;iver iS RvcpreelitcLtire Profile :
Clly Ql' \'el'v g1.:a x-ellx- ]o;llll O1' CiIt l0:1111. 1'hC' st1bzOll 1'a11gC'; O t,J 1~ l11C~lC':, ~l~:l~'}:. 1'l'1'J'rC1:1~1~C ~I~C ~U.lill; til':lllll~:ll'SfCUC~IiCt';
ili color i'roiil cl;ll•1: br~~Nvil to I-cllowizzli bi•ott'>>. Cla~~ :in~l ~,cuc~•;~~.
lii»e 1~;i~•e :~ccii~»>tl;iteil on flie'I)f1C[0111 nf L~IE 1)C~J~)le: iii t'lte 1:3 cu t;' ;nche-. ct:-trt:-Lwown, iirni luati► uh:lt breat:, into i;ri•,ns
]oNver Stibi-oil. 'Tlie depcli to tlte gr.ivel aub-srr.lflllri T,ul~yes 1 to ? inrhc.~ wicte v ;Ici(t.
i'ro m .;l) ro 3 1 ilc11 e,. _l>>nticlI ;►z 10 perr.ent ot z-Oli1e ~111•1ti to 12 dark-t,rown, trinbte loam; stt,t,cty .ZCitt.
r.oilsisrs ot Dong oi• 1'lioebe soils oi• of otliei• CT.11•i•ison <011-3. xll pl,lees the sui•fclee laver is i-ei•x- cl.ir1; bi•own. Yt i: 10
1'his soil a= ~oii~e•~-li:~r excessi~-ely dr.~iiied :~»d h.z~ >>>oc~l- tr~ l~s iilclie; rl~icl:. 1.~lie tesiiii•e oi i•h~~ =il1~=oi1 r:1n`rs fr~,m
CI'~?CC1~" T~11)lll 1~e1'111C'.l~~lllt~". Zt llOlC1S :l~~Ollt ]riClies Ot SI*lC 14:;llll t0 ]1~`'~lC ~ilr~- cl.l\' IQ;llll. 1' 1'0l11 J rt> 1)C1'Cl'llt O~
N\',1fCT tll.lt 1)l.UliS C.lll lls@. It lti eilsl' CO wO1'k. R00fs die lowei' SLlbS011 I-z,COllll)OSed of g1'Avel :11111 :iO11C'S. -,-q
penetrate to tlie 1.1ver of s1nd; c-Tzivel: aiid cobble;'toiies. »lllcll as 5 perceilc of some areas coii;isrs of 13ei•iiliill;
'1'he fertilitN- i; iiiecliuin. Surface runoff is SloNN-. ancl hhe Dea-m-ton, or L1rki;i soils.
li.lz,lyd of eru;ioil i;-- zlizlic. Thi; :oil i; ii-ell clr.iiileil and moiler.ltely perme:ible. It
About `O perceiit- of rlie acreage i; cultix-.1tec1: clie i•est is llo]cl; 9 to 11 iildli:= of water that plaii~s cciii uze. Ir is
tised for ~~ra'/_111~', .Znil as fRrm~teacl; or sul~lirl~an lors. e.1=~- co orli. R~~nt 1~enerr~lti~~n is i-eri- cl~~ep. Tlie fer-
A-fO~-G Ot tllh' .lCl'@,1`'t ls 11'2'1z:lteCl. ITl'Igrilt@d al't.lti :11'e ll~~el'1 tlllCy 1s liizli. S*tii'i.lCC.' l'L1110ff 13 llleClllilll. ;111d Clil' l1,17.a1'Cl
fOl' OI'C11,11'il fl'llli:: .1]1Cl bi;1'1'1C-: C:lb~~age, COl'll. Ct111t.11O111). Ot C1'0S1011 1S 1110C1E'1'tlie.
cuclunber-s. celery. ;1nd scluRSh; n-]ieat, o.1ts. .111C1 barlev: Mo1•e Th.in JO pen_ent of 'rhe aci•eane is ctilciv.ltecl: r11e
,Zlf;llfa for haN• : aiicl o-r~~z; for =eec1 aiid*p.l~ilire. i.7i•i-l.iiicl 1•e~t i; nr.lzecl. 11'liz.lt is the eliiet et•op. Ic is nrow=n iii
are.1s ai'o Ll=eil for «=1ieat, bclrle-v. aIICl llcitix-e buncllgc,1s=. ror.ltion Avith barlry. oatS, pe.1=, lencils. alf:llfa, or gra-z-z.
'.Cliere 1s lln d(ffiClilil" I11tlie il?0 Of lll:lClllllel'\', bllt, tlie =L11 41',1-zz- ,I11C1 z1'.1111 CTOpS 1'eSpOI1d to lll[1'OgEll: lFz11111eS
nravel is 1iarcl nli till;lge implei~~ent_. =111 crop's escepr ' 1'(':-,poiid to sulf~ir. ~ Capability llniL IIZe-?: Lo:unr 1-.111cre
IE'a'11111e5 re-1)ond to iiitro`~eii. -ome crop~ re~pond ro site : not in a, woodl;ln(l. o•roup) . ~
Ztilfu~•; uoi•on. ,~ncl l~ho~pliorus. - i C.lpabilirr- ttilir Gleni•ose silt loam,~b to ~ percent slopes (G~a~.-Tlli~
Lo.llll~ 1•anze z:iie: llor in .1 ivoo(Ilclncl grou*) soil ha~z ,1. aui•face 1,1ver 2 to 4 inclaez- rliicl:ei• 'tlial th.lt of
Garrison ~ra~-ellN• loam, 5 to 20 pereent slopes (G-B;.- CYlenro=e silc. loaiil. to 20 percenc -lope-. ;urf.lce runoff
Thi~ -oil li:l~ ,i ~tli•'r':lce 1:~~•er ~ to 5 iiielie~ flllilllei• tii:ln rl~n'r 1S ;lo~~-. .1nd the e~•o~:c>>1 h~lz:lrcl i; ~li~if. I:aclt~clecl ;~i mcil,-
~,f G~Zr~•i~oil ~•r,1~-~~1~~- lo.~ii~. 0 to ~ pErce nt ;lopez. ruiiot~ pin~- ~~=ere sma11 :lre,1s of T~lili` ancl lle,1r~-roil zoilz.
l~]11E'(111ll11..111C1 [llZ @1'Gz1011111"/..11'C11S1170C11'1'1C@. Tlle s.1I11C CL'O1)s .ll'e. ~1'O\~ll :1s Oll CTI@lll'O-e zlli 14:1II1. ~
i'hi; soil is ti :ecl iil mucli rlie =:1»le ~~-1r 1S CTai•i•i=oii to 20 l~ercent slopez :>>1 adclifion. vegetables ni•e `ri•ol"-ii.
r''navC~ly a0:lli1, o CO J j)el'CE'llf slope-s. (C,ll),1blllCy 11711t• (CapaUlIlTy uiiit. IIe-?: I.O.lll~~' T.111e z1T1: 110t 111 i1 ~100C~-
ZI-e-5:~ Lo.1mr i•;~~i`e ~ite: iloi iii n~~-oodlaiid nrotip) l,ind `roup) . . y .
- Cari•ison i=ery gravellj- loam, 0 to S percenir slopes Glenrose siIt loam, 20 to 30 percent slopes (C.-Tliis
(Gmd).-Th1~z z011 ii;1= ;1 CI111111@1'. 11101'@ -g1•ai-el1v z:U1'f,lCt' lal'e1' sQll ha3 :l =L11'face l;l-,'tl' 3 to 5 illclie: thinnE'1' illall ill.li 0f
4
rll;lll Gal•i•;~oll lo:1m. 0 to 0 l~ei•~nt ~lol~~=. arcl Gle~iro~e ~il"t Jo,1n1. to 20 pei•cellt slopes. ~u~•f,l~:e ~uiioff
llnlils lt'zzz Citrl2l of Thf. 1•'• 1'.11)1{l. ,111C1 ill@ :tz:rJll l1.1%~11'Cl1zze~"e2'E'. -~~)Otlt ~ pei''lli
''1'avel c;lll=t'L: o\:I'elile wi';ll' Oll T11l:1~?'e• ]11,1Chlllt'1'y. _L? Ot =0111~ .11'e;1s COll:-lz1kz 0f D- @rnhili and L' eill'vCOIl =011=.
11111:11 ;1s 7 liill'I'Cl1?i 01 Z,0111t' ;11't'ts (lf OClIt'1' Cr;1'1'1.-;:0 11 Ti1e `;mle C1'Ol)i 'll'c' z1'O\v11 as Oll Gleni'fjs, =ili l~i,llil: Ct)
-nlk. •iL'?iC ~Z_'1,11I0Nti' 1'tlll-~t ~lie: 110C Iiel'i:tili sl4~)e-. i.-,]i ]]l01'e 0f f~1G ;1~'1'f?:1;~'c; 111 `~'1,llll~
i1i.l ~~-oc11;~1~~11~1 ]t~;r11111E'=. (Cal~:l~)il?ii' lilllt ZIIe-?: T.,_i;in.v r.ln.-re =ite;
Garrisan sfon~- loam, 0 to 20 percent siopes 11~~r iil c1 Nrao(llaiicl `Yi'~~lll))
Glenrose silt loam, 30 to 55 percent slopes (CcD;.-Tilis
iGnb' -'This soil holdslez= ilian ~ inclies ofi waret• tliat.
l)l;-- c:zil ,1»cl it. i~ coo -tonl• to l~e r_illti~-,ZCe~:1. :t: ~(~il h.lz 1~urf.;~ce 1:1~-er ~ to ~5 ► inclie~ tliiilner rl~an tliai of
,cli as 1.5 pci'CC'lli 0f zOllle tlI'@:1s COllslsts of othei' CT:Il'11ti011 CTlelll'O-e. Yilt. 10.1111. :p i0 20 1)G1'CellC :lopez. 5111'f.tCe 1'llll-
litcl ;1s lllli,,h as ? pei•eenc iz, inacle up of `1z1111fe off is r.lpid; and t?ie erosiail liaza-rcl is sevei•e. _Lbout. ~
' OLl1C1'OI~S. 1)C?1'CElli• Of ;Olile ;ll'e:13 CO1lS1St5 Ot BE1'1112?11 CIT I~t'Z1TI011 . •
~nil i: »=~~r1 f'~ji• ~-r;l-r_ing. (C: ~~.lbili'r~- tliiit ~~I--?: soilS. Tlii; soil i: ti=ecl on1~- foi• ~•r.tzinY. (C.ip,tbility
Slia.llow r.lll".c -ire: no~ in .ti Wooill;incl ni-nlll)~ lUllt 1'Ie-1; \orth Eaposure 1-:111`-e. =lte: nor in awoocl-
I.U1Ci 0'110110
G1ellrose sel'ieS Glenrose jra~•ell~- silt loam, 5 to 20 percent slopes
(Gra).-This coil lioldz froin r to 9 iiiclie-z uf warei• rh.lt
ThC CTle111'O-~C =e1'lZs C021-z1Sta 0f -ii•el]-cli':1111@Cl, lllOstlT' p1a11fs, C;lll tiS£. Slll.lll al'eiS ot Bet•nliill .1ild De,ll'f011
111e1.lllllll-t'\Illl•ecl -nil:. TheSe soil; formed uncler mr~1-~ soil; ~~'ere ineluded in mlppinn. y
-111C1 SC:ZftC'rE'(:l pI11e tl'eCz 111 gl.icial till mixecl in che upper T111$ c-zOll la 11seC1 111 111t1C11 fiI1C SAl11Q R'fly ,lz C1'lE'llloae s11t
n.1rt NN-itli loe;:s ancl volc:uiic :1sh. _llanv are.ls: are ar:1i-ell~- loaln, ~ to ?0 percenc slopes, bnt ~-ields are les.~. Capa-
. .
~)r ;tanv. "ilie=e =oils are nearlr ]evel to i-ei•v zteep. 71lie blllfv illllC• IV"; 7.oamy raiiae site; iioz in a. Ncaoc11,1t1C1
;lllllll~il preeipit:lT1011 1s :lbOllt 21 111C-Ilei. :111Cl~tlie fi'0-s-t-free 1-2r- " 0 11 P~ `
se.1S011 ]S ~1~)OtIC• Z~~J d~z~-s. Glenrose sra~-elli- silt loam, 20 to 5:i percent slopes
G]eilrose soils ai•e ilzed for graiii. peas; leiltilz, ve`er.lbles, (GrD).-Tliis soil holcls i to J inclles o~ Nv.lrci• tlia't plailts
;11 r-;llf.l, a11C1 z1':1~;zz. 111(l fnl' z1';l%111`~. C,lll LIaC. Slll':~:ZCC 1'11t10lf 1~ TlLl)1C1, .~iid tl~e ei-osi~~ii 1i:17.'il
Glenrose silt loam, 5 to ?0 percent slopes (GaS).-Tlii> is severe. Iiiclucleil in malipinn were are;i..-, of 1_',ernhill
s01l UCC111:: nll n'l;1Cl.ltecl tipl;ll]ds ]ll Il1~ ea4-CC'11T1'.il p1i'f 0f s1lt lO:llll? 'JO f0 55 11CI'cC11t Slo])Gs. .
~ -
92 S0[t, SCcrVF Y
"1.`:tt3t.E 7.-Inlcrp»v;icttinn
.~uit:il,iliLy a.; uC- Suil fcsEiirc:a :tfFr.ciing--
SCi! ,tlritl: Or r:,t•ili poilcl5
and in:i~~ symbnl;
1'op~-oi! Sanri Gravrl 1 ~ I;und ('ill . IIi~.9~;~•:~,: Ioc;ilion i P,;1:cs or 1~-vrc,
r :
1Resl'1\'vii' :1CC:! ~
;
~ I
It•:~gaon (DrC, Mocl [o ' \ot wX \of• SuiL- r`air co ~ Moc'.crate to very high j I.on- stnbiliiv; ! \Iaci0rate tu ~
DsC. DsD, . poor. . :►i,i~. able. sou(f. ~ suScepr;')ilicy to f semiperviuiis to
~ 1110c3ci•atOly
OvOi. frost action; nlOd- } impCrviOUS ' r;lpi(I pC2'llle- ~
er:lTf• to modcrntelv I \vhen com- ; Ibitit~•. • '
l ; .
j illOffYi¢if~,OIC z Q
i l~ ~Itl~~ l)111CC~CI'~l(C' 1!`` ; `
. i ~ ;Lrii~~;-=~~-~•19 ' ~hrink-~~~•cll ~ .
' pore►tli:.i. ' potenti:il. .
• ~ -
Eloika (E(;S, =!C, 1'air------~ ICot suit- `u;iuiAe nc. C;00d___ _ ~Io~'.~•r: lii;11 ci
i~- I orr =ja),ili • ~ AIa~. .
; F~-. -~Cl:ite i0 ~'CPt'•
El D)clble. t3e~~i1z ~ ' to_fi•o~G i •'eli'fl~errioi~=•io ~ i•:~~~ic? ~~E'tI11C-• '
WC;ItC'1' ~ ;lCiiU:.• . c~C'l1:itC iJ ~ I11] . .
, ~ f I•e~i•vinn : :tW lit ~
~ fl:::i: fi0 ~ ~-~•rr :•.~:~ic! 'j~erme- ~ ~~•heii com~;; ~t- . ~
i~ir►.:(.~
ai:~:i:c~••~W• ►o nzo:'.- ed; lou• to cnu:-?_
~ i ' t•rr.;~~ . .~~•:t~k-~~~~t•~: ~ c~t•:~ti~ .{:2•:~~~:- '
. ~ ' !)C:C~_i?i?:::. ; :~•~i_~~ I:UQ~IEti:il.
1 ~
,
. ~
1:1ndc•ne =i!: Fai r----- ~ At suita- ~ \oi ctiii:l- " Poor -----3 1 erti•M:. W=ceptTil- ' 70W sr:.bi::t.V; _lioc?ei•a;(. ru
( L rnl. ' ble. blc. ~ • iT y tu o-z ;~ccio:l• '
• ' ~ ~ervlou..: ~~':~~•t: ~ n10d~~ra:e!v
to 111oc'.- rompacred: lo«- ' =10lv rn_r:u r_ .
er:►ceiy =:~Nv pcrnie- , to mocieraie a1) ili<
;ibil:[i-: lo«• to 11100-
~ i emte =h?•i2i,:-~ivell I ►ioteliti:tl.
I I)utent~:-,l: s:1tur:►ied
j '
! j :!i w::,wr and 6pi•in?. -
~ ~ .
~ -
~
Iheemltt (05, . F:Zir to ~ \nt siliFa- i siaita- Foor----- io vcrV ii;Kh ~ 2\106e1.:ite SI:lt)1!- 'MOdi2':ately sluw;
Fa33, FaCE; ' poo:. : 1)le. bh% to ~ iiy; imperv!o>>? ! TO ve-r•: s1pi:' .
' • ~ ~ fronc c,rcion; moc!er- n-hen ceii:pnet- ~ neemealsli<<-.
: i :~tr1~• ;t,,,~; to ~-er•~• ed; ?o\%• to ~~►orl- + ~ ;
;1:•1•jn,>.ZWit~•, E i•r:~tt~ st.ritll;- ~
tv ';~~iier:ttt~ ~ ~ S<<:Ml ~~ottt~ti:~;. 3 .
sui1= ci•;tck Nv1,t:n i
ti:d: =::tiratcd in drb
~
• , ~ ti 1 :~3i"t i,`~ 1
Garfielcl {CaM__i I'air to ~ -Not suita- \Tot suiti- Poor____Ma: elw:c to vey• higli \TOderafe stnlAl- \Iodcrste to
~
' good. blc. blc. ~ =u=cePti:Aitr to fccst, ity; imperviou.~ slow perme- ~
~ :1ClEVij; I1i0CGel';1t1' LO R'jletl COt11j):ieI- ;?fj111tt'.
:low pt•r,neab:Iity; cd; mocierate to ;
- ll10CIt'2':1[e LO ll1gli• liigh sluink- ~
~ shrink-iwell poten- .well potential.
ti:ll. ,
Carrison \Yot suit- Good bclow Esccileni•_ Sligi►c to 1:0 susecpci- Moderatc stabil- Moderetce to
GgB, ,m~, , aulc. stu•facc ~ bility to frost action; itr; perviou: v(,ry rapiCi
Gn8)• l;tyer. moclo•:IIC' i0 \'Cl'y R'IICIl CORl- pf,•I'Ij2C':1})1]iIt'•
rapici permc:2bilit~-; p;~Ctecl; lon - ,
ln~~~ slirink-su•cll ~ shrink-sxrcll
potcutial. potential.
Y
See footnote at end of table.
~
r3 ~
. ,
SPOK:~NE 4•OVINLY, WA,3111NGr1ON; 93
J)r•nTt""r(.• nj .YWI.:-C.'c►iltimlccl
~ ~uil f~•:~iiir~:3:~iT~~cliii~;-Co~itiuii~.~l
~
, (`oiiti»>tcd :1•_ricu ltiira! ~ E E
Tci•r:tces :und ~ ~~•~~•:~,_c di,po:~:11
ciraii~:►~c ~ 1rrigatinn clivci•sions i W:tteru•nvi Iii:l(is "1'c•:lfiic:ii):?:--
~ 1:111h ;11t1:It1C11C
, i ~ •
. ~ i •
\'LTy 1~~XV sllcur Modcr;ttc to \[oclrrate in- J,c+u• rr:jisr:ulcc LOu• resista>>cc io ~\Ioder:lic to '\"cr~- lot+•
, . - -
I surii,rrh: scini- ~ nieder:ttcly i:i4c ratc: to cru":iun: crotiiu»: mod- tnoili•raccly Strel,.."t►.i:
: pvrvions: to im- ' r:1{Ac1 permc- inoderatr n,o7)(lVr:ltC to eratc v•;iter- rapici pcrtilr- ( l~~:icl-r:~:;
Ix•rvicis 1vhCl1 a::ilitr. ~r:it~~r-l►ul~li~~~ iliodcrntok• 1 I101(ling c:ipar- ~ :li)IIII\': Ill('t(- ; C:Ip:ici;y:
c11ti11):ll'tt'd: Iln- l':lj):ll':t\". 1':l~)I~i l)f'Cll?l'- ~ ll\': l•p'1:1t101? ~•1':1:1,' iC) 71 t)73_ Il1C:(lf•[''lit
cli!i~i r:~r~~~~r~•~=- ~ ~ ay)ilify. dicliritlt ti, ' ei•awly r:ipirl ui~,rlc:~•;t:r_:ti
lj)!1!;\': Iw\' ! C'siQl:Ilsl] l'\Ci'i:i ~ N\':ltl't'-hl'ldill`, , I':ti)l(l
ri:l~~i~i;~'. O11 Df:l!,''UOIt i C;11):ll'li. :1~J1l;iY-
- Slit 101111. t ' ' .
~ Low sltenr :trengih: " _llod,?race to - \Ioder:ite to .l[odi•:•:i'te re-ise• ~ \fodrrite re:if*- I llodc•i•:►te to ~ Lou- sl:ecir
: soinif?rrviou: to vrP•y r:ipid morler:-itely :tncc ro :ZUCe f0 l`Co;1011: I~ \'CF'y Ttipid . screiigth:
i intpr!•violis wlion ; poi•illcabilitr. c:
• 1~~ir.i int:l6:e sio~i; nlac;,_i•- mod~~rati. ~~•:lter- ~ p~~ri»r_ ;bilit~-• ! ec•:tti% to i:~
comf~.tct.:rl: :light ~ t•:itq,• :no(lt i•- :lte ,o \n, liolding c:1- ~ 11104 lcratc . ~ l~r~~;-c:i~•:•:•: -
con,E>n•::ibi;ity= • ~ :ttc ir:lt~lr- !:t>>id perme- ; pacitr: ~~eg,.~tct- watcr-holcling ~ r.lp:irilr: .=.~ot?-
~ low =cc'tbiliry•. ; holditl~.: ra- ~ c~;~ilic•~-. , tion (l'iflirttlt to ~ c:1 p:lci ~ t~-.- ; cr:ite t~; i-:-:
~ I~.~c•ii . csm))ti;h cxrept ~ rapid pr_-:•.~_: -
~ • oi► rlui;:n :ilt
~ iuani. • ~
Vcry she:tr ra t~• to to ~\Io~:l~:r:ir~• r:•:is~r- , -Mocler:tte rc:4,t- \Iuctcr:lte to 1"r•ry loU' -
sCC~'1)`~tf~: i~~tpr.-i•- ' ►r.ocl~'l:tiCl~' i:ltlflel;lT~'l+ ~ 1111't' t0 Cl'O- ~ :111C1• CO tl'0z10~1: 111p(~i'1':ltCl\' . sio•i„jcr:3i'
viotti wlien cnui- • slou- jicrmc- :lotv i»t:i!:c ;ion: inotler- ; very hig1i «•:uvr- ;1o1!' Oc-1'1116- CI':ite i0 1~~-.--•-
p:►ctecl: modc•r:ite i abilit~-: ~:ittt- ' ratc: ~-cr~- ai:~ t~. i~t~xl:~r- hol~ling c:tp~,
a- ' :tl:ilit~-:~•~•r~• lo:l(I-C1Pi'.
to l~in~i coni~are„- ~ ?:i<<~~1~ in u-iu- f higli w,iter- :ItOy Sluw itr: except for iii`~t? ~W:lil'Y•I1l.~IG- C:tI?:Ziity:
il>i!irr• mocler:l,c ~ t~•~• :~ncl : haicling c•:i- pc1-111cabiliry•. ~ s:ilc-tolci;uiC ill'- capacity; . c!:«r ru
si:lblYtiy. C1':ll'ki ?i _ ~ )!h',~ ~
' p:i.it~ I ' -p~cir.•;, ~-~~,4-t:1- ~:Zlttratt,d i►l eratt-ly ,1-_:w
wliVn clry. ~ i I *ioii (litFirulr to winter a nr1 pE•rn~~ ;~?>a?:' ~ .
cstabli;ii. _ .priug ~
1"ery lo:r si,o:ir \[ufh-i•:►tcly ~_1TucleratclY ; VoMmic rr.sisc- : llodei;dt• ru-int- . A[ociat:an•ly • Ver1- lou'
~ r'lfvl!`ih: lit►pC!'- Slot:' Tq \'et'\' ' :ilt)mC 10 z10~~' ~ :lllc•O 10 C•1'C) - ' :lllCe t0 C•1'0Ot1'1!?: • 510n' TO vCl't• si1'1"7,'iri:
_
\'lOli-i \1'I1CR l'OI11- j1Q11' 1)^l'llll'- lla:lko ~:lll''' I =ioli: Ii?i~rkl'- \'(.'C1'h1gh 1\':Zll•1'- ~IO\v 1)l'1'I12c• C•1':•ii, lQn .
j):ICtvd: t11CdIlUl1 Wh;.6:1"i:- \'t:Pl' hlg31 :1:~•~\' rbtC,- iU l1Md111g C:1p:IC- , :1bijiiy:\'l'1'l' :i~` C::•
• Cl?111tt" !il - \I;~;},c-l!ol(iii!': \"t~"V 1);•1'• ~ ll~': 1't'gi'(Cliliili I11_*i! l~:IICC- .
lltqC(t:+..:ll' stCll>ii- -;l!'?l1g. l':lti Y. li:i;l~)liti;'. F:111'l~' Cfls~' LO ~lOl~~lll+ C.1- , i•7':lit•l~'
it~~-: =vil~ ci•:ch • C-tabii~zh. pa citV~ ~ &iiti - v•ry
wlien C3ry. ili pei•~:::•:~:~ili-
i spi•ing
Vc:ry loW ! Mocleratc to Slow iiii:il;e :_lloclei:lte rc=6t- { llodr,ra'tc rN;t- \lodtratc to ~A-ery lonr :hew
strcn,rh: llllpl:l'- slow Perme- rate; very ~ ancc to eru- :inec to erosion; ; _lou' perme- ! strvi:`,~~i!; :_d .
~ viott~ «'hcli com- :lblllC. hi,lt iatcr- ~ ~ion: inotle!•- ~ ~•cr~• liigh ~ :~bilit~-; ~•cry- ; cratclo:~c:-
, I~:►rte~l: ,neclium toe ~ liolrli,i; ca- ~ atc to slow, M-a iri•Solding ' }ii;h w:lter- carryi!i_ u.-
hi~,'1~ p:icit•y. , pcrinenbiiity. capscit.-: ' holding ca- p:lcity;
' icy; IlIOCIQCnrc vc•gec:iiion , pacicy. ~ erati~ co ;i•_~•::
` st:lbilii}': ~oil i ' f;iirl~• ~~a~~- to ~ i~~•~•ut~•at3ii:'• .
~ c.r:ick= ~~-l~cii cli•y. cstablisli.
' i
~ A 1 ri~~~i► Zhe1r at i•ci~~,tlt; 1Iodci':iic t~~ I;:li~id int:ikc~ _lloclccute rc~;i~t- 1Iodcrstc rcsist- ! ~Iodei;lte to ~ 1-Xig}i :li~~sr
~~ci•~•ious NN-heii verr r:ipid r:ite; modci•- ~ ancc to ec•o- ;tncc to erosioii; + very r:tpid ± stren=- th ; i.,
~ CUItIj).icted: slisht PCl'Illl':ibilitr. atc to lo~+' sion; mo~ler- moder:it-c to loNr pcrinc:Zhilit~•; loacl-carr.-ing
contpi•essibilitr; ~ Ar:itcr-holcling atc to vcry watci•-liolding IIlOdQP.ttc to capacit.y;
n►oclcrate st:i-~ c:lpacity. ~ r.lj)IfI 1)CCIt1C- C1])1CIIy; rebe- loNi• w,lter- ~ rnoclerate to
~ bilitr. ~ .lbilil•~-. - t:ttiou difficttli holdin, ca- ~•c~r~• rapid
. ~ to esiablish on pacit~-.~ ~ pcrime;tbili;~-.
~•er~- ston~r locltn, ~
f:lirlr c:tsy on
~ ! othcr aoils.
.
~ . .
~S W. PRF
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SCALE I N FEET Io,2-9-93
~ A 28021
' ~ss~o IS7EA Cj~
NAIL
EXPIRES 9 9
1 •
101.70
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Q i W ~ OFFICIAI PUBI.IC DOCUMENT
° z SPOKANE COUNTY ENGINEER'S OFFICE
J
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D OR'IG NA.
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1 m ~ PRflJECT 9 5Q e~
= cv _ SUBNIITTAL 4 y ~CD
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.0 - o RETURN TQ C4UIdTY ENGINEER ,
a~
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~ 25' BUI! DING SETBACK ~
~----50~---_ ._=y • ~ - -
~ ~ • • -ORAINAGE - EAt-EMENT f
(p
10, UTILITY EASEMENT
5' FUTURE ACQUISTION
• , 2 'L i . . 81. 55
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4- TRACT I SHOR-T PLAT NO 835-93 . ,
~
HANN ENGINEERIN6 N 8623 8 DIVISIOd SP,OKANE,WA
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io ,s O iD 120
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_ SCALE IN FEE i 2842?
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T R,A CT 2 SHORT PLAT N0. 835 - 93 .
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weurv Frvr,iNFER(NG N 8623 8 DIVISlON SPOKANE. WA
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No a35 - 93
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ow
SCaLE ti~N FEET -94 ~
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SP OKAN~~` wA~ • ~
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2 3 8
ENGtNEEIRtNG .
Np,HN ~
o SUBMITTAL CHECKLIST
' PROJECT #
REV I EW # Z . ~
REVIEWER : G. Zsdc,+A
DATE : ''-U-pt- 3
Z IJovEr~~,~~..
PROJECT : ~~-`e '2v!~,, • ,
PROJECT SPONSOR : TEL # 12-6°a5,ci-1
PROJECT ENGINEER (Road & Drainage Plans ) IZr-tJ ~ •
TEL # 41n-l- lc-:~~50
PROJECT SURVEYOR ( Plat ) ~ur4sti---IUZF-
TEL # 92,~ -9-748
GENERAL ITEMS
YES NO N/A
✓ 1. The $100.00 fee for plat review has been paid to
Spokane County for this submittal
2. An agreement to pay fees has been submitted to
Development Engineering Services
✓ 3. The fee agreement has been signed by the project
owner or a principal of the developer's firm. If
signed by an agent of the owner, written
authorization from the owner is attached to the
fee agreement
✓ 4. Review fee account is current (no invoices over
30 days outstanding)
✓ 5. I have noted the plans in, plans out dates on the
pink sheet in the file
✓ 6. If the project is a mobile home park, were the
plans reviewed by Planning?
7. 2 copies of the plans were submitted
i
i
~ ✓ 8. 2 copies of the calculations were submitted
9. The plans are on 2411 x 36" sheets
GENER.AL ITEMS ( cont' d)
✓ 10. The calculations are bound together
✓ 11. The plans and calculations are stamped and signed
by a Professional Engineer
12. The developer has signed and approved the road
and drainage plans
~ 13. Are there any conflicts between the proposed
drainfields and any drainage ditches on the plat
~ 14. Bowstring calculations by developer are in the
file for this review.
~ 15. Vertical curve stopping sight distance
calculations by developer are in file for this
review
✓ 16. Horizontal & vertical alignment sight distance
calculations by developer are in file for this
review
17. The engineer/developer has provided evidence of
coordination with the electric utility servicing
the proj ect
✓ 18a. The file contains a Spokane County Section Map
✓ 18b. The file contains a Spokane County Assessors's
Map
✓ 18c. The file contains an aerial photo of the proposed
project area
✓ 18d. The file contains a corrected preliminary of the
final plat map
~ 19. The project is located in urban boundary area
✓ 20. The project is located in the Aquifer Serisitive
Area
21. The project plan name matches the plat name
~ ✓ 22. Is the entire project located outside of an
~ identified Flood Plain Area?
i
i
i ✓ 23. Is the entire project is located outside of an
i identified Stormwater Management Problem Area?
cklistv3.0/Ru993 2
. r
GENERAL ITEMS ( cont' d)
24. List any design deviation requests and their
status:
25. Locate the Findings and Order f or the proj ect and
list any unusual conditions:
✓ '
~~a • ~ e--, t1 SK.~pt.,~a2..-r►~
✓ t>~,o . 1 c~' ~ c~~ 4 +~nJ ~w~. ~ ~ IN 1-6 1
~ 1, DI L 42'19 G1~ Slc.~
✓ ~ A,A -SVA
✓ 23. Backcheck of previous comments completed
✓ 24. All previous comments adequately addressed
3
Cklistv3.0/Aug93
. • r
FIELD REVIEW
1. Field investigation trip made on
2. Report completed and put into file on
3. Are there any existing utilities on the proj ect
site? (Overhead power, fire hydrants, etc.) If
yes, describe.
4. Are the drainage basins on the ground the same as
those that are presented in the drainage report?
5. Are there any drainage channels directed toward
property?
6. Are there any drainage channels directing water
through the property?
7. Do County roads cut off drainage as per drainage
calculations?
8. If there are culverts under county roads, does
the flow go away f rom or toward the project?
9. What kind of ground cover exists?
10. Describe any existing channel conditions:
11. Describe channel cross section:
12. Existing Curb Type:
cklistv3.0/Aug93 4
ROAD PLANS
1. List any roads that must be designed and
constructed on the project.
ROAD REQ'D WIDTH DESIGN MIN./MAX. STOPPTNG SIGHT MIN. CURVE
NAME CLASS. PAVED R/W TERRAIN SPEED GRADE DISTANCE HORIZ. VERT.
1 ~ ~ z~+1~«s tu~ ?.Q ~ ~3 ~~a 1~. ~e~ 1 'Zt~ 8!0
!
✓ 2. Planning conditions require submission of a
landscape plan. (NOTE: Usually associated with
PUD' s )
3. I have checked the landscape plan against the
road and storm drainage design and there are the
following conflicts:.
~ 4. The following road plans have a bearing on the
design of roads for this project and a copy is in
the file:
~ 5. I have sent an "R" value and percolation test
request to the Construction Section with soils
information and a layout of the proj ect . "R"
value test request to Designer
( date ) .
cklistv3.0/Au993 5
ROAD PLANS ( cont' d)
~ 6. Is the bench mark shown on the plans?
~ 7. Are stationing equations shown?
✓ 8. Is stationing correct (south to north, west to
east, reading left to right on the plan)?
9. Are existing utilities shown on the plans (or an
information copy of the utility plans submitted) ?
✓ 10. Are proposed utilities shown on the plans (or an
information copy of the utility plans submitted) ?
~ 11. Does the note "Any conflicting utilities shall be
relocated prior to construction of roads or
drainage facilities." appear on the plans?
12. STREET WIDENING
12a. Are curb design sheets provided for widening of
existing streets?
12b. Does the curb design conform to Spokane County
Standards of section cross slope (Between 2% and
4.5%)?
12c. Is there a street cross section shown for
widening existing streets?
12d. Does the proposed new width match the width
required in the Findings and Order?
12e. The cross-section shows:
existing R/W
proposed R/w
future setaside
12f. 100' (min. ) pavement taper into project is shown
(1) There is adequate R/W f or the taper to extend
from the new paving width to existing pavement.
(2) There is inadequate R/W for the taper to
extend from the new paving width to existing
pavement; taper extends from existing paving to
R/W.
12g. Length of pavement taper out of project meets:
WS2 = 60 for design speeds s 40 mph
WS for design speeds > 45 mph
ft. min, taper length approved by County
~ Traf f ic Engineer
/
v 12h. Transition from end of curb to existing paving is
shown (curb should nose down in 1211)
Ckllstv3 0!F,u993 6
ROAD PLANS ( cont' d)
✓ 12i. A 411-wide, white painted fogline at 12" from the
edge of paving is indicated (tapers or tangents)
✓ 12j. Are the curb grades above the county minimum of
0.80?
✓ 12k. If curb grades are below 0.80, has a special note
been added which requires a licensed land
surveyor to verify that the curb forms are at the
correct plan grade prior to construction?
13. NEW STREETS
13a. Does the proposed alignment meet Spokane County
Standards?
vertical
✓ slopes
IV/ vertical curve length
horizontal
V/ curve radius o
~ intersection separation
150' on local access
300' on arterials
✓ 13b. The plans show the typical cross section for
streets
✓ 13c. Does the proposed street width match the Findings
and Order?
13d. The cross-section shows:
✓ existing R/W
✓ proposed R/w
✓ future setaside .
13e. Does the typical section on the plans meet
Spokane County Road Standards?
cross slope is shown
~ cross slope is within standards
✓ cross slope is correct when checked on profile
~ 13f. Curb type :
shown
proper type for the road classification
~ meets Spokane County Road Standards for curbs
~ within the public right-of-way
consistent with the curb type in the general
' area
~
~ 13g. Are the curb grades above the county minimum of
0.80?
cklistv3.0/Au993 7
ROAD PLANS ( cont' d)
✓ 13h. If curb grades are below 0.80, has a special note
been added which requires a licensed land
surveyor to verify that the curb forms are at the
correct plan grade prior to construction?
~L 14. Has an "R" value test been performed for each
soil group?
j 14a. The pavement section is adequate for the R-value
and Traf f ic Index f or the road type
~ 15. Locations where water is intended to flow through
an inlet or curb cut are at the low point in
vertical curve
16. SIGNAGE PLAN
16a. Stop signs are shown for all streets which
intersect an arterial (Check with County Traffic
Engineer if there is a question)
~ ✓ 16b. Street name signs are shown at all intersecting
streets
✓ 16c. Is there a need for barriers at the end of dead
end streets?
16d. Is there a need for other special signing? (Check
with the County Traffic Engineer)
✓ 17. Has the Fire District approved all proposed
private road turnarounds that are substandard
according to our Spokane County Road Standards?
18. CURB RETURNS
18a. Are BCR, MCR, and ECR stations/elevations on curb
returns shown
✓ on the plan?
✓ in the prof ile?
✓ 18b. Are the curb return elevations correct?
✓ 18c. Is there positive drainage from the road
intersection to the MCR?
18d. Curb return radius meets County Standard minimum
of 20' (to back of curb for rolled/wedge curbs,
to face for vertical curb face types)
✓ 18e. BCR, MCR, and ECR elevations are set to allow
drainage from the centerline to the curbline
ck1iatv3.0/Au993 8
ROAD PLANS ( cont' d)
,Z 18f. BCR, MCR, and ECR elevations are set so that the
superelevation between the intersection and the
curbline is banked properly for right-hand turns
into and out of the intersection roads (the road
slopes from the intersection down to the
flowline)
J 18f. BCR, MCR, and ECR elevations at intersections
without stop sign control are set so that the
superelevation between the intersection and the
curbline does not exceed: (ref. AASHTO)
10% (flat terrain)
So (rolling terrain)
60 (mountainous terrain)
19. CIIL-DE-SACS
19a. The cul-de-sac grades (top of curb) meet county
cul-de-sac standards (lo min.)
✓ 19b. The cul-de-sac curb is shown in profile
20. INTERSECTIONS
~ 20a. Do the intersections meet the 2o grade
requirements?
✓ 20b. Wheelchair ramps are provided at intersections
with sidewalks
20c. If there is a change of direction at the
wheelchair ramps, are the ramps oriented so that:
f a 51x5' pad is provided at the top of the ramp?
✓ the required 51x5' landing zone at the bottom
of the ramp is located inside of a line drawn 1'
inside a line extended between the curb faces of
the adjoining street at intersections?
any drainage structures are located outside of
the landing zone?
~ 20d. The intersection horizontal sight distance
analysis shows that sight triangle encroachment
on private property is 2' or less
~ 21. Is there a need for slope easements?
✓ 22. Is there a need for erosion protection?
cklistv3.0/Aug93 9
ROAD PLANS ( cont' d)
23. DRIVEWAYS
✓ 23a. Can a driveway slope of 80 or less be maintained
between the edge of pavement and the right-of-
way?
J 23b. Can a driveway slope of 120 or less be maintained
between the right-of-way and the building setback
line?
Ck1iatv3.0/Aug93 10
DRAINAGE PLANS
✓ 1. Has a plat map been submitted which shows lot
dimensions, street widths, etc.?
; 2. was a map with t~ contours spot
i elevations submitted to properly determine
i drainage basins?
3. Were all existing drainage courses shown?
4. Were all the proposed drainage courses shown?
5. Were Hydrologic calculations submitted for each
basin? (Bowstring if area s 10 acres, SCS TR-55
if area > 10 acres)
✓ Off site (50-yr storm if undeveloped, 10-yr
storm if developed)
Onsite (10-yr storm)
✓ Q for entire area
✓ Q for roads only
INFILTRATION POND
Actual pond volume provided
DETENTION POND
~ Release to pipe system:
~ ✓ contain 50-yr developed
; release at 50-yr pre-developed
~ secondary overflow to pipe in control
~ structure for 100-yr developed
; emergency overflow weir for 100-yr developed
sump prior to outlet to control structure
~ 1' min. f reeboard
~ grassed sides/floor for publicly-maintained
; ponds
sprinkler system for publicly-maintained ponds
i Retained on site, no drywell:
~ contain 100-yr developed
emergency overflow for 100-yr developed
i
i
208 SWALES
208 swale floor area, volume requirements
/ 208 swale floor area provided
~ 208 swale volume provided
ckl i aCv3 . 0/Faug93 11
DR.AINAGE PLANS ( cont' d)
~ IINDERGROIIND GRAVEL GALLERIES
i
i
1. .3 void ratio for gravel free space volume is
~ used
i
i
i
~ 2. Perc rate from field test is used to develop
i
~ outflow rate
i
i
i
i 3. 10-yr event volume is contained entirely
i underground
i
i
4. 100-yr event volume is contained by a combination
~ of underground storage and above ground storage
~ up to 8" depth
i
i
i 5. 100-yr event volume is contained by a combination
i , of underground storage and above ground storage
i ' exceeding 8" depth
5a. Soil mixture is specified for water depth in pond
i , exceeding 8"
i ~
i
i 6. Entire gallery is wrapped in filter fabric
CONVEYANCE
Conveyance -
~ pipes
~ ditches
gutter flow depth is less than gutter height
~ Backwater - pipes, ditches
~ Headwater - culverts
Curb drop/curb inlets
on grade ( f ig 16), sump ( f ig 17)
Grates - sump ( f ig 15), cont inuous grade ( f ig
16)
✓Riprap - stone gradation, pad dimensions
7. Soils type is "pre-approved" (Garrison, etc.,)
i • for drywells without percolation tests
✓ 8. Does the drainage report identify the SCS soil
groups for the proj ect area and for the proposed
roads to be built in the project area?
~ ✓ 9. The drainage design maintains sheet flow patterns
~ in natural watercourses
. i
~
i
~ ✓ 10. The drainage design maintains existing sheet flow
~ patterns without concentrating flows
12
ckli3tv3.0/Aug93
DR.AINAGE PLANS ( cont' d)
; ✓ 11. Does the entire plat lie outside of designated
~ 100-year Flood Plain Area?
i
~
; ✓ 12. Does the entire plat lie outside of Zone "B" of
~ the designated Flood Plain Area?
~ 13. Is the max. street ponding in any part of a Zone
"B" less than 1'?
~ 14. Does the plat contain appropriate language
limiting the lowermost opening in a structure
located in a Zone "B" to not less than 1' above
the lowest road elevation?
~ 15. The drainage concept is compatible with planning
commission requirements.
16. The difference between present and future flows
is retained on the site.
INLETS
✓ 1. The inlets shown are within the stream flow.
2. Inlets are shown on the low side of a road or at
the low point of a vertical curve
~ 3. Curb type inlets are shown at sags and are
properly sized.
Perimeter does not include the side of the
grate against the curb face (all grate types).
Perimeter is divided by 2 for calculations
where no curb opening (Type 1) is provided.
Area = clear area = 2 for Type 1 grates)
~i 4. There are no long curves with flat grades
which pose a problem.
~ 5. The centerline road stations, offsets, and invert
i
~ elevations for all inlets are shown on:
; ✓ plans
i ✓ prof ile .
✓ 6. Grate type is shown on the plan and is
acceptable. (Spokane County Standard inlets in
county ROW, on private property other inlet type
may be specified) (Type 1: D-2; Type 2: D-4)
~ 7. A detail drawing of the grate/curb installation
is shown on the plans and includes the 2"
depression and transitions as per county standards for grates that are located within
county ROW, or referenced to SCRS std. detail D- 8
13
c4:1iotv3.0/aug93
DR.AINAGE PLANS (cont' d)
✓ 8. A curb cut detail is shown on the plans with the
new county back drop with transitions and a 2"
depression for curb cuts inside county ROw, or
referenced to SCRS std. detail B-15
~ 9. The plans shows acceptable curb cut details and
grate details for installations which lie within
private road easements.
10. If inlets are in a gravel road or a dirt ditch a
6' x 61 A.C. apron is shown around the inlet.
✓ 11. Catch basin or special manhole details are shown
or a standard drawing is specified.
✓ 12. Critical low points in the drainage system have
been provided with overflow easements.
208 SWALE SYSTEMS
✓ 1. Is the swale located outside a future set aside
area? See Findings and Order for where setasides
are required.
VI" 2.. The. swale_ bottom and sides have sod or grass turf
specif ied . 3. Swale side slopes do not exceed a 3:1 side slope.
(A 2:1 side slope is allowed if swale depth is
less than 1211 deep. Should only be allowed where
constrained by obstacles)
4. If depth of water from bottom to drywell rim is
between 6 and 8 inches, soil mixture has been
specified which meets Spokane County Guidelines.
i 5. Drywell is:
~ located within 8 feet of the -curb line, or
i
' ✓ a maintenance access route and easement are
i
; provided
✓ 6. Drywell stationing is staggered from the inlet by
at least 4'
✓ 7. MultiPle drYwells are located more than 30'
(center-center) apart
ck1ipCv3. Q/Aug93 14
J
i]RA~NAGE PLANS (COIIt' d)
i ~ S. Soil type is apgr_opriate foac dry~ells (perc rate
~ z~ 72"/hr)
~ if nat _
~
Sa . overflow from a swale at a low point will lbe
i directed away f rarn bui3ding pads by
~ ,lan identif ied easement over improved ground
a ~ an existing natural drainage channel covered by
~ an easernent
a
J, 9. Drywell 1-ocatian does not conflict with
underground utilities.
~ 10. Drywell type is specified,
L
V, 11. Drywell grate type is specified (Type 3 -std.
detail D-7)
12. Drywell grate elevation is;
~ below the invert at the curb inlet
between G" and 8" above the swal e f loor
e1evatian
~ 13. Does the note :"Wrap the drywell with a f ilter
fabric (Amoco 4545 or equivalent)" apPear on the
plans?
14 _ Swale floor elevation is :
specif ied
~ between 6" and 81' below the drywell grate
elevation
e at least 6" belaw the narmal gutter flowline at
Y the curb znlet for swale without a drywell
at least 8" belaw the no=al gutter flowline at
the curb irilet for swale with a drywell.
15. Swale flcaor
' V, dimensions are shawn
i
ICllI7lmLlm ar"ec.~ 15 ShOW11 ~ the area marches the requYred area from the 208
calculation for impervious areas.
16. Easements fcar the 208:
are shawn on the drainage plans
~ are shown on the subdivision plaC
~ are of adequate size to contain at least 61,
j freeboard above the max. water surface elevation
~ for the design stcarm
V/ are tied to the lot corners,
J 17. The side of the swale that is the furthest
distance frnm the street shauld have a tap of
swale elevation that is higher than the highest
water 1evel of the swale.
15
ckli.akv3 4fAU993
DRAINAGE PLANS ( cont' d)
~ 18. The invert at the curb inlet is at or above the
max. water surf ace elevation for the design storm
19. Filter fabric
~ is specified for the gravel envelope around the
drywell
~ is specif ied between the drywell and the gravel
; J envelope
installation specification is adequate.
,
i ~ 20. Irrigation plan for County-maintained 208 swales
~ Lot plans submitted on
208 LOT PLANS
✓ 1. Lot plans are required; submitted on i\.
2. The 208 lot plans show:
~ the lot number, block number, subdivision name,
date drawn, scale, and north arrow.
dimensions to lot corners
drainage easements
setback requirements
✓ ~ swale floor elevation
~ swale floor dimensions
rim elevation if drywells are present
v curb cut station, offset, invert and length
any drainage ditches '
shows depth f rom the top of the curb
~K'A an attached cross section of the swale or ditch
./3. Lot plans have been stamped by a professional
engineer on all pages
4. Lot plans are of suff icient scale to maximize
the lot size to the 8 1/2" x 11" paper size.
(Drawings may be on plain white paper)
✓ S. 208 lot plans were approved on
CULVERTS AND PIPE SYSTEMS
1. The road culverts are at the low points of stream
flow.
~ 2. The headwater was calculated for culvert
entrances and is under 2 diameters for culverts
under 18" in diameter and 1.5 diameters for
culverts greater than 18".
~
3. There is a minimum of 12" of cover for all
culverts and storm sewer pipes
ck1iatv3.0/Au993 16
DR.AINAGE PLANS (cont' d)
✓ 4. The designer has provided a letter from the pipe
manufacturer certifying that the intended pipe is
suitable for cover less than 3' (PVC), 2' (CMP,
RCP), 1' (HDPE/ADS) or the engineer has provided
trench details for upgraded pipe bedding for
these areas
~ 5. The minimum velocity within the pipe system is
4 feet per second at design flow in a backwater
condition. (Note: The County Engineer may permit
lower velocities)
f 6. The backwater calculations show a minimum
freeboard of 0.75 feet for each catch basin or
manhole.
J 7. The minimum culvert and pipe slope is 0.5% and
all pipes meet or exceed this standard.
✓ 8. All angle points in the storm sewer system have
suitable access such as a manhole for cleaning.
9. At locations where two different pipe sizes enter
the same manhole the 0.8 diameter points of each
pipe are at the same elevation. (Note: Exception
allowed for drop manholes)
,i 10. Is there any downsizing of pipes in a systems of
pipes that are 18" in diameter and smaller.
J 11. There is a downsizing of pipes in the amount of
3" for a minimum of 100 feet in a pipe system
that contains pipes that over 18" in diameter.
12. All pipes in the pipe system are 12" and larger
as per Spokane County Standards; (10" pipe that
is allowed for connection of inlets to catch
basins or drywells, if the length does not exceed
44 LF and the velocity is at least 4 fps).
~ 13. All storm sewer pipes are located a minimum of 5
feet from a rear or side property line and have
adequate easements for maintenance.
14. Inlets on the same slope are located so that the
i
~ maximum width of spread for the gutter flow does
~ not exceed 6' (from curb face for Type "A" or
~ "B", from back of curb for Type "R"}
f 15. The plans and profiles show all culvert pipe
types, stations, offsets, lengths, and inverts
ckli3tv3.0/Aug93 17
I
DR.AINAGE PLANS ( cont' d)
✓ 16. Pipe materials meet county standards for systems
that lie within county ROW. (Note: The type of
pipe in private systems may be as specified by
the design engineer)
J 17. The culverts shown are properly stationed from
centerline stationing.
V 18. Does the drainage system configuration avoid
conflicts with underground utilities?
✓ 19. Is there a need for energy dissipation on any of
the culvert outlets shown on the plans?
✓ 20. Is there a need for rip rap around the culvert
outlet at any of the culverts as proposed on the
drainage plans.
21. The rip rap that is shown for the drainage plans
is adequate for the culverts where erosion is a
concern and the engineer has submitted
acceptable rip rap design calculations.
✓ 22. Pipe anchors are shown for pipe grades greater
than 150. `
e~ 23. There are no instances where water is trapped
against a fill with no culvert shown.
f 24. Profiles and cross sections are shown on the
plans for all proposed channels and ditches.
✓ 25. Ditches with eroding velocities have a proper
lining for erosion protection.
~ 26. water will properly flow from an existing or
proposed ditch on to the pavement as proposed on
the drainage plans.
✓ 27. Where the ditch profile passes from cut to fill
the flow has been properly disposed of.
ck] a stv3 . 0/Fiug93 18
. ,
. ' .
EASEMENTS
1. Adequate drainage easements are shown for
maintenance of drainage ditches or pipe systems.
~ 2. There are easements proposed or existing for
natural channels which cross the property.
~ 3. An easement was provided where street drainage
was diverted onto private property.
- ~ 4. The perpetual maintenance of private systems has
properly been provided for.
~l - 5. The maintenance of drainage systems within
Spokane County ROW has been properly provided
for.
~ 6. Appropriate drainage language has been provided
by the reviewing engineer to the surveyor and/or
engineer who is involved with the platting work.
7. Pre-existing drainage easements on this parcel
i
~ are not affected by this plat
i
i
~ 8. Overflow easements are provided from swales/ponds
; located in low points
MISCELLANEOIIS
1. QC check of review completed
(date) (init. )
2. Bond quantities for drainage item calculated
(date) (init.)
3. Vertical curve sight distance worksheets done
(date) (init.)
4. Vertical curve geometry worksheets done
(date) (init.)
5. Drainage volume worksheets done
(date) (init.)
6. Stamped road mylars to Permit Tech.
(Sylvia/Suzanne)
7. Stamped lot plans to Admin. Asst. (Sandy)
cl:1istv3•. 0/Aug93 19
VAItIANCE # A1'PLICANT'S NAMEH ~
~
BLDG #
1
O"niER # MAILING ADDRES,S 304 ~ U ti i nN ~
s,Q f , TR g- 4 -PARCEL # PHONE - HOMF
ROAD NAME I'HONE - WORK
Tbe following documents are needed before the Spokane County Engineer's Department can begin processing your
vaciaace or building application as approved. (509) 456-3600
~ AGREEMENT TO PAY FEES have been collected.
~ RECORDED COPY OF DEED, DEED OF TRUST, contract or conveying instrument. These may be
ee obtained from the County Auditor, 2nd floor of the Courtbouse. :
LEGAL DESCRiPTION of your access easement. -
A LISTING OF NAMES of individuals who will be si ' t
~ gning he documents. These individuat names-
should appear as the person(s) legally sign their fiame. _
dd-RA
(ME,
A CURRENT ASSESSOR'S MAP which depicts che location of your proPerty.
OWNERSHIP MICRO-RUN. These may be obtained from the County Assessors, Ist floor, of the
Courthouse, Jefferson entrance, 2nd door on the left.
The necessary documents will be prepared by the Engineer"s Department, Right-of-Way Section, upon provision of
the information noted above. You will be notified when the documents are ready for signature. The documents may
be sent to you, however, IT SHOULD BE NOTED 'I'HAT ALL SIGNATURES MIJST BENOTARIZED. The
Engineer's Department does have notaries availabie if you choose to sign the documents at our office.
PIease call when ready Please mail when ready
,
Notice to Public ~ Ri ht-of-Wa
g Y
COMMENTS G l"~2 2 ~~~Co?1S.~S ~'1t2- 'e ~C7~ 4
~
6cJA,eA) 0:::;) C,
. ~ ,
Right-of-Way Agent _ Forward to ou from
k\p~notice.192 y ~
~
A i A~w AW.O+
HAHN ENGINEERING, INC. , - ~ -
• - -
N. 8623 Division Street Suite B
SPOKANE, WA 99208 LETTER
(509) 467-1550
DATE _ . , .
TO:
SUBJECT
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❑
Please Reply ❑ No Reply Necessary
SIGNED
PRODUCT 3053 [W~~ Crts., Grmun, 1Aass. 01471. To Ordei PHO:tE TOLI FREE f+80P22S6380 40°i6 Pre-Consumer Content •10qo Post-Consumer Contant
. ^ .
I
. a u n
' LENGTH
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. GRATE EL.
~ 1989.60
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1989.10 FL.
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~ 0 ASPHALT
- . • CL, STA 4t11.36 , PROVIOE FILTER (AMOCO 4545 OR EOUAI,)
BETWEEN DRYWELL AND GRAVEL ENVELOPE
~
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_ . , AND BETWEErl GRAVEL ENVELOPE AN D THE S KI P
~b,. .
.38 • ~ NATIYE SOIL.
2. RYWE HA C MPLY • TO SP K
D I.LS S L L 0 0 AN E
END OITCH
CULVERT
' - COUNTY STAN 0 AROS.
" C. L. STA. 4+05/I 5 RT, '
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.
END ASPHALT
S,TA.34- 63.38/60 RT. E.OP't.EL. 19 9 T. 0 0
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, I .
A PNA ,
L STA. 0-35-83
• EOP EL 1991.17
' I • INSTALL
STREET SIGN
ASPHALT RETURN
CL STA 0+ 36-17 .
EOP EL. 1 991.17 TYPE"AORYwELUTYPE FRAME/
C.6AIE
C.L. STA.0+60I15LT END' OITCH
( GRATE EL. 1989.60
* _ C.L. STA. 3+58. 5/15 LT,
C.L~ INT 000
- .
12+04 FOURTH AVE 208 PONQ ~~B~~ 4' X 50'
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1 C t ~IE T D~S~ ~ 3~• ~ R
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HAHN ENGINEERING, INC. w i ~ w,Y^
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N. 8623 Division Street Suite B - _ - - - - _ ~
SPOKANE, WA 99208 LETTEA
(509) 467-1550
DATE
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TRACT 1 SHORT PLAT N0. 835-93 ~
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HAHN ENGiNEERING N. 8623 SUtTE B DiV1SI0N SPOKANE, W9g208;'..
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SM'WiE Ci JiaTY EWG@NEER ~
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ENGINEER'S REVIEW SHEET
BLDG. PERNIIT # -or -FILE# SP=tS35_o_-4
Related File # ( )
Date to Review 4-7-93 Time #
Date to AA & llR '1'imc
/
Date Iteceived 3-23-93
Project Nam.e " SINGLE RES No. Lots 4 No.Acres 1.3
Section - Township - Range
SITE ADDRESS E SKIPWORTH/N 4TH PARCEL # 21542-0701
Applicant's Name DOROTHY HARDING Phone # 928-3557
Address 304 N UNION Kll-SOIKANE WA 99214-0377 Work #
Date Conditions mailed '
Contact person ! 1 AM (A V ~b it Ge ZJ 7 Phone #
FLOOD ZONE d NO I W 4 S 5 SCI-IOOL 356
Enginc:cr / Surveyor's / Arcliitect's Name DUNSM017E SURVEYrJRS RANDy
1115 N PINES
SPOKANE WA 99206
924-9748
Planning Contact Person 'I'AMMY JONES Phone # 456-2205
Date Subnvtted Descriptiou Initials
,
. 61 l~V` / 93 AGREEMENT TO PAY FEES COMPLE"I'F-Ia & COPY TO ACCOUNT[NG ~ 44 ~
7 FINAI. PLAT FEES COMPLE'I'Ell & C~PY TO ACCOUNTING
~
N01ICE IO YUI3LIC # 1 3~>9COMPLETED -OR NEEDS TO BE SIGNEIa6~'
DESIGN DEVIATION SUBMITTED
AL,Z'ERATTON TO PLAT - 13LOCKS & 1.,0TS
HEARING rXAM APPROVED DI-?NIED-_APPEALED BBC _APPROVED DENIED
c~ !y 93 ~e~~ -
7-/C)- 9 3 / c 04K nA_
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1 Cs • 07 S ' ~a -,~0 n.lYn .C-a-- cSUI.," ~ ~ ~ - AA W,r~q.c , QO~GK?•C-otA_
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1I914 RG3 9LA-C a 5,,4 r-vO'd
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~~~INEER'S SHEET
- BLDG. FERMI'T # -or -FILE# MS
-
- - - - - - - - -
Related File # ~
- Date ta 7 _
. Review 4-7-93 ~Time . # . ~ ~
- _ ~
Date to AA DR Zirne
1]ate Received 3-23-93
Pr^ject NaIrie SINGLE RES IVv. Lats 4 No.Ac■a ~ ~
■ es i~~I
Section - Tawnshi
- Ra,~~e
SITE ADDRESS _ E SKIP'V~'ORTHJI~T 4Ti~ PARCEL # 2I542-0701
Applicant's Name DDRDTHY HARDl1vC, Phone # 925-3557
Address _ 304 N UNTC)N RD-5OIICANE WA 9921,4-0377 Wark #
Da#e Conditians mailed
Corntact person Phone #
FLQOD 7OIVE d ND W4 S5 SCI-IOQL 356
Engineer l Surveyor's / 1Lt'chitect's Name DUN'SMORE SURVEY[]RS
1 115 IV PI1VES
SFOKANE VVA 99206
924-974$
Piai7ning C.antact Person TAMMY ,TONES Fhone # 456-2205
L Ddte Subrrtitted ~
Description ~ initials
1 ACrREEM-ENT TC] PAY FEES CQMPLETEI] & CQpY TD ACCC]LJN'TI'NG
- l ! r,INAL PLAT FEES COMP1,E'IED & CQPY TC} ACCOUNT'IriIG
' 1 f ND'rICE TO PUBLIC # 1 3 4 G COMPLE-TED OR NEEDS TO'F3E SIGNEI]
^ 1 1 DESIGN I]EVIATION SUBMITTED
ALTERATION 'T'O FLAT - BLOCKS & LOTS
1 ,HEARING EXAri AYPRC]VED DENiED-_APPEALED SBC ~AFPRD'VE-]] DEIVIED
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ENGINEER'S REVIEW SHEET
Date Submitted Description Initials
4 kYr*v Gr~ ~!fi~ ~ x) '#"3 !.j ~
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;\pu'Veview.ior
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Ori-IcF oF 'Ct iE CouNiY Ct,lc.iNCER • A DtvislQN Or• Ti 1F- C'uoi.tc WoRxs ()F-rA aITA ENr
1Zonald C. ! iorinatttti, I'.L_. Counly 1nglneer Dennfs M. ScoN, f'.12,, plrector
ArncEMCNT TO PAY rE, ES
ENC:INEEl7'S ACRCCMiLN'l' NUMBEIt f:Z~~ ~ 8~5 X-
.
This agreemeni uelwcen Spokaiie Couiity aiic~ haYtd 2(I ~ Lv-pk Yl
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whose tptcreSt in the pl'nject !s tYl
`7, , n r, tcm,
Is eilteCecl into thi3 drty of As~' , 19 34 , Tl~is agreemettt is arplic;~ble to the praje~t
~
known as:
usfd ~ &Drt p I a~-~ t~ o.g3s
' projcc r iic`nah t ii►bci ~
Ti,ai tlte itae{ivicttials ancl parttes namec] Iieveiii as having att interest in the abnve eleseribecl prorer#y or
Prnjcct agrcc to tlie followiiig:
1. Reimburse Spokarlc Criunty far pr0ject revicw and insrection fces as specircd in
Chapter 9.14 vf (lie Spokane Ci7unty Cocle. 71ie feGS witl be based oti actttal salary
c:asts incurreci by SpcikAne County foc rrjaect reviews anel / ot' icislicGtioiis ljlus a teit
pcrceni atlministrative chargc, anci will be bilfecl itionthly as accruccl. Atiy final
billing atticiunls, to 3iiciucle aiiy late fccs or any otl,er expenses iiyetirceci iii ilte
cc711cGtioR of an 4vCrcJue accouitit iuust bc paicl pCtor !o tl1e C:cYUnty's ac:ceptance nf
tllc project fc}r ftling,
2. The tinclcrsigneci ngrces tliat tliese fces are citie atic1 payatyle tilion receipl of tllc
billing as specificd Abovc.
3. Ariy invaices ndt paict wt'lliin :30 clays of ttie invoice clate will be sut,Jcctecl lo a late
fec clitarbe cif l% pcr inonti1 (12n/o rer year) on tlle u»pAicl tmlance aC tltc nceautlt
ancl n»y aeertieci late fee- ctiarges, Jn aclelition, iF any otitstiiiiclieig balance on t!►e
aceoticit for tliis projeet Is troi paid witliin 34 +Jays of Itic iiivoiee eiate, t►a fiirtller
reviews af tlle Project t1ocumctlts will be coiiclticteCl untit the eritire acc:otint baluiice
is paicl. Any halanee on (lie account for tliis project not p»icI witliit) 65 clays of llle .
invoice clatc inay result in legal action or tlic initation of otlyer collectioji pnoeedtires,
inc:lucling refcrrnl to a colleetion ageney. 77ie Sponsor wi11 bC litab1e fur any ticid a11
expenses inctirrecl by tlie Comtly for tlie c:olieclion of avercJue accotilits.
4. 'rhe i-iionthly biliing slioulcl 1se sctit to the atlention of: .
NA M C: 4vidldl 6,hj/Vi~ , p, P.
. ADDRESS: _J1 ~si nn
C1 `l'Y, S'I'ATE: S~ o It~ V~ G, W,~r
~ -
zIp CoDEf: ~Zbg
111IONE, ~6 ~ ~ J5517
Y titiclcrstnttci ttiat failure tn pay tltesc fces may resuit in dclay in compleiion or npprnval of (lie pTOjec;t ot
11er PassilyEe sanctiotls.
rf tllis fee ngrcemcrit is cocnpletcci Uy so«icone othcr than (lie Sponsoc (i.e., ihc
project (micc or vi prineipal in ihe firrn sponsoring tlie projec:1), sucli as tlie Lingi»eer
clesigiiing (lie ptojcet, Ilien wrEttelt autliorizatiott fcoirt #he Sponsar spectRcAlly
niillioi-izi,ig t1ie Abeiit tu execiite llijs ree A6reet~i~~~t is ~tt~cl cl ta lliis ree
A6rce~ri~~it.
sIc~TdA~~c.~rtr? r~y:
'~e- , (PnYrqT NAME)
!,TUI2N 'VELLt7YV C,()j!YA'0 S!''()KANr C0Uff!:Y ~ GlNrrlJ,S .
V~sjg«~~~~cn ree e/20/43 1 ,
BOfIK 705 L r. , ~~~~96
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; , ~ WARRANTVDEED ' ~ .
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This lrlarranty Deed is made'.and executed _this
JZ 7day of June,
,1956, by and between, Adlore L:Malotte and;=Ann J. Malotte, husband and
t . .
wife, hereinafter called the Grantorsi.and the County of Spokane,
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hereinafter,called the Grantee, WITNESSETH:
`
7
That the said Grantors, for and in consideration of the sum of
One Dollar and other valuable consideration, to them in hand paid by
the Grantee, the receipt of which is hereby acknowledged, hereby
conveys and warrants to the said Grantee the following described real
estate situate in the Countp of Spokane and the State of Washington:
to-wit:
The East 40 feet of the West 100 feet of the East 121.6 feet
of the West 3 acres of the East Half of Tract 175, lying
S outh of the Ra ilroa d Right of tiaay a nd EXCEPT the North
150 feet of said tract. -
Witness my- hand and seal the day and year first above written.
cz• ~ ~
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.s
State of Washington) ,
) ss
County of Spokane
On this day personally appeared before me Adlore L.Malotte and
~ ~at
Ann J. Malotte, husband and wife, to me known to be the individual
described in and who executed the within and foregoing instrument
and acknowledged that they signed the same as their free and voluntary
act and deed for the usesand purposes therein.mentioned.
1
Given under my hand and seal this~~d~ Y of June,19 56
! • ~ D V4
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; :•'y~~ f~ YB~`~ F.~~/ / c.,,ul
:~otary Public in an for
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~~'~pf,;#~ . the State of , f~s 'n~ton
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at
residing
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FIIED FOR RECORD JUL 3 1956 AT g• a~M REQUEST OF ~ -
FRANK J. GLOVER. SPOKANE COUN'rY AUDITOR
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R~ct:s~r
fIlEO OR RCVGR Ep
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RaadNarfleJi4o: REQUEs- n' C'IL~.
Pvrpose: ,.S P ~S` . '
prepwod eY: . DEc Z Li
R eq B y: (Lsnd Dev) NO. 4
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, NOTIGE TO THE PUBLIC
t• i'! i i: i;
SPOK0E. COl!N''r. S WTEROFFICE ;
AGREEMENT WAIVING PROTEST TO FORMATION OF ROAD IMPROVEMENT DISTRICT: ,
K.NOW ALL HEN BY THESE PRESENTS, That Kenneth Harding and Dorothy Harding, husband
and wife, y~~• PdGF 18- o
V
being the owners of the following deBCribed lands in consideratfon of Mutual
Benefits to be hereafter derived do for themselves, their heire, grantees and
agsigns, hereby agree to the following:
There may be a need in the future to construct a public road to aerve the
lands herein described. Said road shall be conatructed in accordance with
the then adopted County road standarde for public roada. Said road to
follow, as near as practicable, the existing County road right of way.
If additional right of way is required, the owners, their heirs and/or
assigns agree to deliver to Spokane County a properly signed and executed_
Right of way Deed coverinq the required additional right of way.
The owner(s) or successor(e) in intereat agree to authorize Spokane County
to place their name(e) on *a petition for the formation of a Road
Improvement District (RID) by the petition method pursuant to Chapter
36.88 Rcw, which petition includes the owner(s) property, and further not
to object, by the eigning of a ballot, or not to protest to the formation
of a RID by the re8olution method pursuant to Chapter 36.88 RCW, which
resolution includes the owner(a) property. If a RID is formed by either
the petition or resolution method as provided for in Chapter 36.88 RCW,
• - d - - F•7ox.~*~.1~~
the owner(s•)''• 'or''"' e`u:,'c~cess~or~(s) further aqrees (1) that the improvements or
construction<cor~t,e,r~p,1,~,tgc~;~y~ithS3Z?:the proposed RID is feasible, (2) that
the benefits to Vb'sjO~dbii`veci~ zthe formation- of the RID by the property
included ther-ein~,~toge,,hI~~* amount... cf 'any County participation,
exceeds the.~:cost%,rand~* expsn9e"*4Yif` formation ot~ the RID, and (3) that the
property within the proposed RID .is sufficiently'',.developed. Provided,
further, the owner(s) or successor(e)' shall retain the right, as
authorized under RCW 36.88.090, to object::"to'..any. assesament(s) on the
property ae a.result of :the°~improvements called for in conjunction with
the formation of a RID by either petition or reaolution method under
Chapter 36.88 RCW and-to appeal,to the:Superior,Court.,the decision of the
Soard of county Commissionere-affirminq~the"final aa$esement roll.
y, Y _ • y~. Yr . \ '
By allowing a building permit"to'be'issued'`'onproperty ''having access from
an unmaintained County road,-'Spokane County asaume8 no obligation for said
road, and the_ owners bereby.--'acknowledge 'that'the "County ' has no obligation
of any kind or nature whateoever to establieh, examine, survey, construct,
alter, repair, improve,"maintain, provide_drninaqa or enow removal on eaid
road. The reqvirement`'is'and Bhall- run with the land and shall be binding
upon the owners, their heirs, eucceasors or assigns, until eaid road is
improved to County standards and accepted by the County for maintenance.
.S - .
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The above conditions and covenant apply to the following deacribed property:
The East Half of Block 175 of OPPORTUNITY as,pe`r plat thereof recorded in
Volume "K" • of Plats, _ P4ge,.20.;-.•.
. , ,
EXCEPT the West three 'acres;- lyYng.,South'of the •Railroad Right of Way thereof ;
EXCEPT the Railroad Right of Way; •
ANO TOGETHER WITH the East 21.60-feet of the West three acres of the East Half
of Block 175 of said Plat of OPPORTUNITY•lying South of the Railroad Right of Way;
. . , , .
Situate in the County of Spokane, State of Washington.
Located in Section 21, Township 25 North, Ramge 45 East, W. M.
The undersigned owners, their heire, . succeseors or asaigns hereby releaee Spokane
County, and all ita officers, employees and agente from any -responaibility, or
liability for any damage whataoever to the hereinabove described lands and
imorovements thereon.as a reeult of allowing a buildinq permit to be issued on
property which ia served by a Unmaintained County road.-
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VOI. 15 R ` r4 4 PAVL_ J.
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These requirements are and shall run with the land and shall be binding upon the
owners, their heirs, successors or assigns. This agreement ahall expire after ten
(10) years from the date of execution below.
ZN wiTNESS WHEREOF, we have hereunto set our hand(e and seal(s) this '?~`OoFday
af December ~ 19 93
.
. Kennet Har ing - ~
!or thy,Harding
STATE OF WASHINGTON • . , y ~ , .
COUNTY OF SPOKANE
• r , . c . .~wF,'~ • ~ ' • ,s ..f_ . .
On this day per6onally appeared before"me'`':• °Kenneth~ and Dorothy Harding,
. ' . :t:•_ , ~ • .y; 9 , . , . ' ~ . • '
. . ~ ~ ~ t • -
• _ , , „ . .d t , ~ ~ , ~ .
personally known to me to be the~individual(e)' who executed the forgoing instrument
and acknowledged ;the said instrument~to be the free and voluntary act and deed of
sai-d individual(s), for the 'uses-and"purposes~-tYierein mentioned.
1 ~1~ 1
Given under my hand and seal'this day of December ~ lg 93
.
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• ' ' . Y. ' ~i . . . . i ~ ~
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'************t*~-~'~~~i**~** '`•'`"~ot'~ary~ Public ~In anii for the State of
* NOTAAY PUBLtC ~ • ~ , t ~ ~ ' ' - Washington
* FOR TNE STATE OF WA3H1N~ i, reeiding at Spokane ~
♦ RAYMOND T. MOON . . , * ` r .
# h7Y COMMISSION EXPIAE3:,
* JUNE 21,1997:. ~ . # , •
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~28 SPOKAhk,
Y l. PAGE.~2 t) 3
~ Portion of 45212.0701
, 4th Avenue
RF No. 1201 "D"
' SPOKANE COUNTY DIVISION OF ENGINEERING
~ Spokane County, Waehington
~
, DRAINAGE EASEMENT
~
The crantor(s) ROXAIJNE SWARTZ, a single person
of the County of Spokane, State of Waehington,- for and in consideration of Mutual
eenefits, the receipt of which is hereby acknowledged, grante to Spokane County, a
political subdivision of the State of Waehington and to the public, a Drafnage
Easement over, under, upon and acroes the following described real property
situated in the County of Spokane, State of Washington:
The South 45.5 feet of the West 26.5 feet of Tract 1,
Short Plat No. 835-93, dated May , 1993, located
in the Northwest quarter, Section 21, Tocanship 25
IJorth, Range 44 East, Willamette Meridian, Spokane
County, Washington.
, •
R. E. Ex e T E>;errip~, ~
Da 19/,
ane un4y Treas..
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.
The Drainage Easement granted to Spokane County, its authorized agente, and to the
public, is for the sole purpose of allowing the flow of natural drainage and/or
runoff from man made facilities across and over the lands described above, and for
the disposal of natural drainage and/or runoff from man made facilitiee in the
public right of way upon the lands described above.
Spokane County and its authorized agents are hereby granted the right of ingress
and egress to, over and from said Drainage EaBement for the purpoae of in$pection
and emergency maintenance of water quality treatment ewales ("208" swalea) and
other drainage facilitiee, if not properly maintained by the Grantor(s), or their
euccessore in interest. Spokane County does not'acpept the responsibility to
ingpect or maintain the Drainage Eaaements or drairiage $wales, except for the
drywell located as deacribed above, nor does Spokane..qounty accept any liability
for any failure by the Grantor(e), or their successors in -interest, to properly
maintain such areas. Spokane County accepte complete and total responsibility for
the construction and perpetual maintenance of the :drywell 'located ae described
~
above. , , .
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I "
VOI. I G 45PAGE1 21) 4
The Grantor(e), or their successors in interest, shall be held responsible for
keeping open and maintaining the surface path of natural or man -made drainage flow
over and across the property.
The Grantor(s), or their successors in interest, shall maintain all water quality
treatment ewales ("208" swalee) and drainage ditche$ situated on the property, and
any portion of a"208" ewale eituated in the public right of way adjacent to the
property, with a permanent ground cover ae specified on the current approved plan$
on file at the Spokane County Engineer'$ Office. The Grantor(s), or their
successors in interest, may install approved ehrubbery and/or trees which do not
obstruct the flow and percolation of storm drainage water in the 11206" swale and
drainage ditches, as indicated by the current approved plans on file with the
Spokane County Engineer's Office.
The Grantor(s), or their successors in interest, or their representatives ehall
inform each succeeding purchaBer of all Drainage Eaeemente vn the property and of
their reeponsibility for maintaining eurface drainage pathB and swales within safd
Drainage Easementa.
Spokane County does not accept the reaponsibility of maintaining the drainage
course within Drainage Easements or floodplain areas on the property, nor the
responsibility for any damage whatsoever, including, but not limited to, inveree
condemnation to any properties due to deficient constructfon and or maintenance of
drainage courses in Drainage Easemente on the property.
If the Grantor(e), or their successors in intereet faile to maintain the surface
path of natural or man made drainage flow, or the drainage swale, a notice of euch
failure may be given to the Grantor(e), or their successors in intereet. If not
corrected within the period indicated on eaid notice, Spokane County hae the right
to correct the maintenance failure, or have it corrected, at the expenee of the
Grantor(s), or their successors in interest.
Driveway access permits for driveway approaches to the Spokane County road system
are required prior to iseuance of a building permit. This approach ahall be
constructed in accordance with the approved plan on file in the Spokane County
Engineer's Office.
IN WITNPjSS WHEREOF, ~ have hereunto set Mt hand this 30day
~1' .
o f !'y urom-ST 19 L e,T
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STATE OF WASHINGTON
COUNTY OF SPOKANE ) es
,
I certify that I know or have satisfactory evidence that J
!
ie/azQ. t e person(e) who appeared before me, and said pereon(~ acknowledged
that k4 ~ signed this inatrument, and acknowledged it as free and
voluntary act, for the uses and purposes mentioned in the inetrument.
Dated thie day of aa4QJ._-,, , 19
-~--f
PIG~yT,cO,,~ ~Sg1) N
N ~ .
4p o~ c~°-t nr? R
slVota Public
Z p G ~ 2In a d for the State of Washington,
U BLI
reeiding at Spokane.
~i"~J'~;••FB• 08, ~9.°f•°•'~'~~~'~' My appointment expires 199o
' f''~► OF V1iA
stormdel/forms/jp/10 ,*410t0+111~~%0
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S p O K A N I=-
U U N 'I' y
OfFICE OF TI IE C4UNTY ENCIN[ER • A I7IVISIQN OF Tt IEs PUBI.IC WOltKS DEI'ARTMENT
Ronald C. I iormann, 1'.C., Cuunty Cngineer Dennis M. Scott, P. PECEIVE-D
irectur
AGREEMENT TO PAY I'EES
. Q lsl; / 5 40Q4
ENGlNECR'S ACItEENi[:N'i' NUMI3ER X SPOKANE COUNTY ENGINEER
Tliis agreemeilt between Srokarie County and and e( I ,~}-~•~tV1 ,
nan o c~son~ ~
wliose intcrest in tlie project is R ~enk ,
ti.e. ner, agcni, ctc.J
is enterecl into this tJ 4k day of Aua us t , 19 94 . This agreement is applicahle to the project
known as:
CK"e, ShDrfi P 101- N o.~35
tprnjc re srZir ikcnam i c n inmcr
Tllal IIIC lIldIVIdUaIS a[1(i ri1ClICS C1a111Cd I1CCe1[1 8S I1aV111g all lllleCCSt IIl the above cfescribecl prorerty or
project agrce to the following:
l. Reimburse Spokane County for project review anci iiisrection fces as specifiecl in
Chapter 9.14 of the Srokane County Cocie. The fees will Uc based on actual salary
costs incurrecl by Spokane Courity for project reviews ancl / or inspections ptus a ten
rercent ac.lministrative cliargc, ancl will tie hillecl inontlily as accruecl. Any final
Uilliiig amourits, tu inclucle any late fees or any oIlier expcnscs iiicurrecl in tlie
collection of an overcfue accouiit must Ue raici rrior to the County's accertance of
tlie project for filiiig.
2. Tlie unclersigiiecl agrees that tliese fees are clue ancl rayabie uron receipt oF the
billing as specifiecl above.
3. Any invoices not ratcl williin 30 cfays of the invoice clate will be subjectecl ta a late
fec cltarge of l"lo per itiotitli (12°Ia per year) on the unpaicl halance of the account
anci any aeerueci late fee cliarges. In aclclition, if any outstanclinb balanee on the
account for tliis project is not raicl within 30 ctays of tlie invoice cfate, no fiirtlier
reviews of the project docuineiits will be conclucted until tlie entire account balance
is raicl. Any balance on the account for this project not raicl witllin 65 clays of the
invoice clate may result in legal action or the initatioii of otlier cUllection proceLlures,
incluc.fing referral to a collection agency. 71ie Sponsor will be liaVle for any atici all
exrenses incurrecl hy tlie County fur tlie calicction of overcfue accounts.
4. Tlie montlily biiling sliotild be scrit (o the attenlion of: .
NAM E: Ravid-e. II Q, F:.
,
ADURESS: N- T)1 V lSi bYt
CITY, STATE: S 40 KAViL, WA
~ .
ZlP CODE: q~ Zn~
PI ION C#:
I unclerstancl tliat failure to pay these fees may result in dclay in conirletican or approval of the project or
other rossible sanclions.
❑ If tliis fee agrcemcnt Is coi»pletccl by saineone otlier tlian tlic Sponsar (i.e., tlle
project owner or a rrincipal in the firm sronsoring ihe projec;t), sucit as tlie Engiiieer
clesigning tlie project, Ilien written autliorization from thc Sponsor speci(ically
nulliorizit►b llic Abeiit to exccute lhis Fee Abreeiiient is atlacl cl to thts Fee
Agrccn~ei~t.
SICNATURI: By:
, (PRINT NAME)
,
RETUitN YELI.ow cOr'Y T() SI"OKANC C()UN'C'Y ENC1NErRS
k4iV\agrccmcn.1cc 8/20/93
' r. nnni.. n. -y- ir_.%n% wec -inn rwv ienn% wcc w^71e
• _ - . - - - - • . , _ - ' - .
,
PLAi NAME NO. ~
~
STATISTI CS DA,TE
Plat Ctaeck Fee ~ ~ ~ 5 3
,
Number a€ L.ots . _ ~
Road Miles (New) A-
Total Area y I . 344C:
MAP
, ~
Norttti Arrvur
Scale
Legetxd f
F'rocedures & Equipnient ~
~
Basis of Bearitigs
~ Plat I.ocatian By Title . . ~ _
Official Signature Blocks , -
Surveyors Czrtificate
~
Road NanYes
. ~ Road Width~
Adjacetit Arca ~
Lat & 13tock N►inlbefs
RJW I]edica[ion designated Y ~ .
1 Fovt Strips
3 RPS oit GLO CartYers
Vtae
Tract X A6A
Tot Areas
Bench I1rfark .
~ Closure - UZ)
.
]]El]IGATZON ~
Descriptian (To Map)
~
I]cscription ('1"o Cert) ~
' Owners ~
~
Cert'rficate to Plat ~F-, -
1 Foot 5trips
RII] - CPR Statcment .
Access Prof7ibited
. ~
RfW Dedicatian A`1~C-, A AJ Atlaia" UAS,,~
Drainage Language
Flaod Insurance
Stornlwater Management ~
208 Bands - $1,000.00 ea ~ 208 PLANS APPROV~D IJJU~A3
Yrivate Road Doc. Ws ~
. . ~
Pcivate Raad Warning ~ .
, `Roa~d P]ans - g,4 ["13
Bond Road Imprci
Sigrled By Engineer
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tbLis date,
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F4R PX~R•
R-FCEV~ ord,er of ~pon. ~M,~. D~~A~E ~ ~ .
, numbered y~LL
CountY Audttor washingt°n ' .
. Spokane County ~
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- DECLARATION OF COVEN~::::.
In consideration of the a proval by Spokane County of
S1~IOJ~T F'lA T $3.~ -~3 (hereinafter referred to as the
"Development"), the undersigned coveriants and agrees that:
l. The subdivider/sponsor will construct the,private roads and associated
drafnage facilities in conformance.with.the approved plans on file in the
County Engineer' s Of f ice . - ' . t . . .
2. A lot f s served by a prf vate road 'when i:,. a the only road f rontage f or
the lot in the Development fs .on`':f'the :'.private:-. road,' ' or; b. a lot havin,g
frontage on more than one road (publlc .or:iprivatie) constructs an approach to
the private road.
3. The owner (s) of any lot created by the Development or alternation thereof
and served by a private road shall be responsible for maintenance of said
private road, including associated drainage facilities in conformance caith
approved plans on file with.the County-Engineers office.
, . , , . .
4. Maintenance financing of the .'.-p'rivate* roads. and associated drainage
facilities shall be fn a manner determfned,by, -,the owners of :
a. the majority of lots served`;'.by:; such private road;
Q. the majority 'of frontage°`-of.~,lots":-*served by such privatP rcad;
c* the majority square footage:;b.f:-lots, served by such private road; or
d. . . ;
5. In the event such private road, including associated drainage facilities
is improved to Spokane County standards for public streets, and the County
' is willing to accept the dedicationof such road and facilities, each lot:
owner shall execute any documents necessary to accomplish such dedication.
6. Owners of l.ots within the Development who are served by such road, may
sue and recover damages and attorney'.s:.: fees ,'from~ ~any owner of any lot within
the Development which f s simf larly; ~'s~rved :'who 'r'efused to participate in the
road and drainage facilities,.constructioriancing, and maintenance.
, ; ~r,. , . . . . .
7. WARNING: Spokane County has 'no';responsibility to bu,ild, improve, or
maintain or otherwise service the.. private roads, including associated
drainage facilities, contained within.or providing service to the property
described in this Development. By accepting this Development or subsequently
by allowing a building permit to be issued for property on a private road,
Spokane County assumes no obligation":for said '.private road and the owners
hereby acknowledge that the County,., has . noobligation of any kind of nature
whatsoever to establish, examfne,.survey,..construct, alter, repair improve,
maintain, provide drainage or snow;-'remov.al.,'on:_a:~private road, or associated
drainage facilities. . , .~e,;.;~:~~t:; ...~,7.~:~-;~;•.r. , .
.1~~! '~~I? . ~!•1~1,r!
. •[i~:' . . ' I: l' •
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8. This covenant and agreement shall:;;'run..wfth'.'the land and shall be binding
upon the owner, thefr heirs, successors orassigns, including the obligation
to •participate in the maintenance ;of the p,' ate road, d drainage
facilities as provided herein.
. ~
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. WN .
. -
OWNER ;STATE OF WABHINGTON ) . . ~s.-• . • ,
DATEDthi o~. day of ~C' , 19~.
County of spokane ~ ;;~i~...
S~•q~=11 '!i"_ , i~f• lN ~1'
' ~~i.. . . .1
On this day personally appeared before me .~EAJA2&,rl* ~i4ZbiJCo
-Do20 ' known to me-:.to be the individual (s) described in
and who ecuted the within and foregofng instrument and acknowledged that
he/she/they signed the same as his/her/their free and voluntary act and deed
for the uses and purposes therein stated.
GIVEN UNDER MY HAND AND Og~X%rGDArJ#,~BEAL this o2PDday of ~~~~iw-C_, 19~.
,,ti P,,,,........,. C;y•
.
' F+,"q( i ~
R,~?,: `~yl O N •
. A.
. r t~l4tary - ubl ic in 6Lfoar the State
z ~U t%~`t~o~ Washington, residing at Spokane
V . t;•" • . : t` `j;;
k\7 \f\declara. pr punO-G .~,t . . , •
3/90 10-15'66;A~0y~►~ .
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S P O K A N E s• C O U N T Y
, .
OFFTCE OF THE COUNTY ENGINEER • A DMSION OF THE PUBLIC WORKS DEPARTMIINT
Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director
November 28, 1994
Seafirst Banlr
E 12816 Sprague
Spo!{ane, Wa. 99216
RE : Sl'835
Gorothy Harding
Uear Sir or Madam:
Dlease t,e advised t!-,at Savings Assignment No. 5141500765
issued bv your cumpany as surety far installations of roads and
asscrciated drainage facilitiES for the above mentioned plat, dated
DecEmber 3, 1993 in the cur-rent arnour,t of $4, 400. 00 may now be
rNleased.
:lf yciu r:ave any questicins, feel tree to call our- office
Ve•ry t•ruly you•rs,
konald C. Hormann, P. E.
5p ane County ngineer
Uavid A. Rerta
Plat Lompliance Surveyor
1026 W. Broadway Ave. • Spokane, WA 99260-0170 •(509) 456-3600 FAX: (509) 324-3478 TDD: (509) 324-3166
OFFICE OF COUNTY ENGINEER
SPOKANE COUNTY, WASHINGTON
Date_L~ 19
Inter-office Communication
ro_z'
f rom ~ ~~".~1 ; ~ ,~t',i~. -
SUb ferf • ~ ~ ~ . T.,(~~C L' /1,1i~.,~' .CG-~)~'~- ~a: ~SL,( ~ .f~- ~
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Form 327-C R.
.
OFFICE OF TNE COUNTY ENGINEER
SPOKANE COUNTY. MIASHINGTON
TO: BILL JOHNS
FROli: DAVE BERTO p .,3.
DATE: December 13, 1993
SUBJECT: BOND ITEMS SP-835
The bond for the above mention project is for the following '
items:
1) All the items on the approved road and drainage plans
including the sod f or the "208" Swales.
c:\wpdoc\dave\memo\items
~
~ -
~ ,
, A S S I G N M E N T For security purposes only, hereby assigns to
SPOK-ANE COUNTY, a political subdivision of the State of Washington, the
following:
Savings Certificate Number ~--7
o~
in the face amount of
and held in and by the 13,4 R/ A-
Bank of
~
/+l Branch
s
This assignment is made as security for the full and faithful performance
X ~<:r-1d he ~ of certain roads, monuments and drainage
by ,~o,g_ ->T
facilities for 47 9S' %4 as specified in the typical section
and roadway improvement specifications for said project, dated
19 9S and on f ile in the Of f ice of the Spokane County Engineer.
Any interest benefits accruing under said savings certificate shall remain
the property of S~~ ~~S T 40-A./~~ . Said savings certificate to
be released to IQ~ s~ o or any other party only with
the prior written consent and' agreement of SpokaaeCounty.
PROVIDED, FURTHER, the undersigned does hereby authorize 7C,+l,9e,,r7- 13,* w ~
to pay over to Spokane County all or a sufficient portion of the monies in the
savings certificate referenced hereinabove upon written documentation being
received from the Spokane County Engineer indicating that the purposes for which
the savings certificate was assigned have not been fully and faithfully performed
as required and a statement of that alnount of money which the County Engineer
deems necessary comple e su h o ligation. Upon receipt of such writAen
documentation, ~✓6.hereby authorizes
to release to Spokane Coun y that amount of money requested up to the maximum aruount in the savings certificate,
Da TED th i s 3~1'~ da y o f 19 g~
BANK OF
'Presitte-at
I& e- r e ta fiu
y,
DA T E D th i s d a y o f Qtct~ , 1lik 13.
.
DEVELOPER _ y e~lzz ~1
STATE OF WASHING'I'ON )
:ss
CQunty of Spokane )
On this day personally appeared before cne ,
~ to me known to be the individual described in and who egecuted the within and
foregoing instrument, and acknowledged that signed the me as free
and voluatary act and deed, for the uses and purpos therei tion
QoO.a~~eq~
G IVEN UNDER MY HANll E~D~,OF~'FTC,~~~ ~~4AL this da , 19
~ \
00 NoWry Pubit-( and for the Stare
Ol~ Washington, residing at Spokane
~ ^ d
0026p /B
~~e a OP
0
SPORANE COIINTY ENGINEERING - DEVELOPMENT ENGINEERING SERVICES
BOND ESTIMATE FORM
PROJECT Stjoe~ ?(,Ar No.°~ 35 DATE
PREPARER & L-L- A Em m►mfoS PROJECT NO. S P 83S
ITEM # DESCRIPTION QUANTITY PRICE TOTAL COST
1 TYPE "A" DRYWELL ~ F,4 . ~ 12, 00 •Cr) $ lp?G0 '0V
2 TYPE "g" DRYWELL ~ eA. ~6 Qa
3 TRIPLE DEPTH DRYWELL $
4 FILTER FABRIC LINING
FOR TYPE A& B DRYWELLS $
5 FILTER FABRIC LINING
FOR TRIPLE DEPTH DRYWELL $
.
1yo` $
6 BACKFILL FOR DRYWELLS ? B C~ /5-5O CU
7 TYPE 1 METAL GRATE $
8 TYPE 2 METAL GRATE $
9 TYPE 3 METAL GRATE
10 WSDOT TYPE 2 GRATE $
11 WSDOT TYPE 2 CONCRETE
INLET BASE - UNIT "H" $
12 SPOKANE CO. CONC. INLET $
13 48" PRECAST MANHOLE $
14 SOLID METAL LID $
15 DITCH/208 EXCAVATION G~,-
~
16 8" ST SEWER - $
17 10" ST SEWER - $
18 12" ST SEWER - $
19 15" ST SEWER - $
20 18" ST SEWER - $
21 21" ST SEWER - $
22 24" ST SEWER - $
23 30" ST SEWER - $
24 36" ST SEWER - $
NON STANDARD DRAINAGE ITEMS:
1 440ofto =~ov f-ox- c.~~sT ~ cal ~A-~.E $ it oo • °o
2 $
3 $
4 $
5 $ •
6 $
~
TOTAL ESTIMATED CONSTRUCTIQN COST : 3S '
vs EL ~
COMMENTS ON BOND ESTIMATE: ~
.-FFICE OF THE COUNTY ENGINEI!
Spokane County, Washington
Date: ~C~ 2 5 • ~3
TO:
FROM:
SUBJECT: Standard DrainaQe LanguaLye for the Dedication on
1) Drainage easements, as platted and shown hereon, which are for the purpose of installing,
operating ancl maintaining drainage swales and drainage facilities to dispose of runoff, are hereby
granted. The County of Spokane is hereby granted the right of ingress and egress to all drainage
easements adjacent to the public right of way. The property owner shall maintain the drainage
swale with a permanent live cover of lawn turf, with optional shrubbery and/or trees, which do
not obstruct the flow and percolation of storm drainage water in the drainage swale as indicateci
by the approved plans.
2The owners of +!els+'rR*'t-ol- S 3& 4,- , d bets=
shall be held responsible for
keeping open and maintaining the path of the natural or man-made drainage flow over and across
the property.
3) The property owner or his representative shall inform each succeeding purchaser of all drainage
easements on the property and his responsibility for maintaining drainage facilities within said
easements.
4) Spokane County does not accept the responsibility of maintaining the clrainage course on private
lots within drainage easements or floodplain areas, nor the responsibility for any drainage,
whatsoever, including but not limited to inverse condemnation to any properties due to deficient
construction and/or maintenance of drainage courses in drainage easements on private property.
5) The lowest building opening, including basement opening, for any building on tift
and 44;0~- shall be high enough to allow a minimurn slope of 3%
away from the building in 10 feet. All drainage shall be routed away from the building to natural
drainages or other lawful drainage features.
6) Development within this subdivision shall conform to the requirements of the National Flood
Insurance Program and Chapter 3.20 of the Spokane County Code. The lowest floor, including
basement floor, for any structure shall be constructed according to the requirements of the
Spokane County Flood Zone regulations in effect at the time a building permit is issuecl.
Purchasers of property in this subdivision are warned of possible flooding or ponding and the
potential requirement to purchase Flood Insurance. This warning shall be carriecl in each and
every deeci drawn to transfer ownership of any and all property within this plat in the Area of
Special Floocl Hazard.
7) An approved lot grading plan exists for Lots . , and ,
Block , and Lots , , & , Block .
.Grading must conform to said plan on file in the County Engineer's Office.
8) Spokane County shall not be responsible to maintain ingress or egress across the floocl plain area.
9) The owner(s) or successor(s) in interest agree to join in any County approved Stormwater
Management Program and to pay such rates and charges as may be fixed through public hearings
for service or benefit obtained by the planning, design, constructing, maintaining, or operation
of stormwater control facilities.
10) A statement must appear in the dedicatory language of the plat that indiviciual driveway access
permits be required prior to issuance of a building permit for driveway approaches to the County
road system. This approach shall be constructecl in accordance with the approved plan on file
in the County Engineer's office.
IUazd-dev\gcn\st.d re in
. t ~ . ,
BEFORE THE SPOKANE COUNTY PLANNING DEPARTMENT
IN THE MATTER OF__ ) FINDINGS OF FACT,
SHORT PLAT NO. SP-835-93- ) CONCLUSIONS AND
DECISION
THIS MATTER, an applicarion for subdivision of land, from Dorothy Harding has been
received and decided upon, pursuant to Spokane County Subdivision regularions, on the
day of Apri1, 1993.
FINDINGS OF FACT AND CONCLUSIONS
1. The individual signing below has further been properly delegated the responsibility for
rendering the decision by the Spokane County Director of Planning. 2. The proposal is to divide approximately 1.3 acres into 41ots for one existing single
family residence and three new single family residences and those uses permitted in the
underlying zone.
3. The proposal is generally located at the northeast corner of 4th Avenue and Skipworth
Road in the NW 1/4 of Section 21, Township 25 North, Range 44 E.W.M., Spokane
County, Washington.
4. The existing zoning of the property described in the application is Urban Residential-3.5
(UR-3.5), previously established as Agricultural Suburban (AS) zoning in 1955 and
reclassified to Urban Residential-3.5 (UR-3.5) on January 1, 1991 consistent with the
Program to Implement the Spokane County Zoning Code. Pursuant to RCW 58.17.195
the proposal generally conforms to the requirements of the existing Urban Residential-3.5
(ITR-3.5) zone.
5. The preliminary plat shows an existing accessory structure bisecring the common property line between Lot 1 and Lot 2. The existing accessory stnicture shall be
removed or the lot lines adjusted on the final plat in order to meet accessory structure
~ setback standards of the UR-3.5 zone.
(6. The preliminary plat shows Lot 2 and Lot 3 as being approximately 9,540 square feet in
size. Prior to filing the final plat, lot lines shall be adjusted on the final plat to illustrate
the 10,000 square foot mi.nimum lot size requirement of the UR-3.5 zone.
7. The Spokane County Comprehensive Plan designates this area as Urban. The
development and uses proposed are generally in accord with this category.
8. Surrounding uses are primarily single family and multi-family residential with
commercial uses d.irectly north of the proposal along Sprague Avenue.
9. The existing Milwaukee Road Right-of-Way which is adjacent to the north property line
of the proposal is the future site of the South Valley Arterial.
10. This proposal is located within the Public Transit Benefit Area (P1'BA). The Pence-
Cole Valley Transit Center, which is located on the west side of the intersection of 4th
Avenue and University Road, provides downtown and connecting service.
11. The required public norice was provided for this proposal and agencies having a
potential interest in the project were notified and recommendations solicited.
12. The Central Valley School District No. 356 has commented on the proposed short plat.
The District has indicated that existing school facilities are inadequate to serve the
proposed short plat and has requested a negotiation with the owner to provide adequate
capital facilities as required by the Revised Code of Washington (RCV) 58.17.110.
The Planning Department must assume that the agency of jurisdiction, in this case the
Central Valley School District, has made a reasonable request. Approval of this short
plat should include conditions requiring that provisions for adequate facilities be in
l ~ y •
FINDINGS AND DECISION SP-835-93 Page 2
place prior to recording this final plat in the form of a written agreement between the
owner and the school district. .
13. Comments were received from adjoining property owners. Concem was expressed
over continued use of an easement through the proposal and a public pedestrian access -
was requested through an adjacent parcel. The preliminary plat as cond.irioned
adequately addresses the provision of public faciliries as cited in RCW 58.17.110 and
listetl under Find.ing #14.
14. Recognizing the recommended cond.itions and Spokane County development standaxds,
the proposed short subdivision makes appropriate provisions for the public health,
safety and general welfare and that the public use and interest will be served by platting
the subdivision.
The subdivision proposal is generally consistent with RCW 58.17 and tlle County
subd.ivision regulations, promoting the public health, safety and general welfare in
accordance with standards established by the state and Spokane Counry. The Planning
Department has considered the provision of public facilities as cited in RCW 58.17.110
(2). More specifically:
a. open spaces
b. drainage ways
c. public and/or private rights-of-way
d. transit
e. potable water
f. sanitary waste disposal
g. parks and recreation facilities
h . playgrounds
i, schools and schoolgrounds
j . sidewalks
15. The Spokane County Arterial Road Plan identifies 4th Avenue as a Minor Arterial with
an existing width of 40 feet and a proposed width of 80 feet. The County Engineer has
requested dedication of an additional 10 feet of right of way on 4th Avenue and that a
strip of property 5 feet in width be designated as a Future Acquisition Area. The
Spokane County Arterial Road Plan identifies Skipworth Road as Local Access Street
with an exisring width of 40 feet. The Spokane County Engineer has requested
dedication of an addirional5 feet of right of way on Skipworth Road.. The Spokane
County Arterial Road Plan also identifies the South Valley Arteriai (adjacent to the north
property line) as a Principal Arterial - Controlled Access High Capacity Facility with an
existing right of way of 100 feet and a proposed right of way of 160 feet The Spokane
County Engineer has requested that a strip of property 30 feet in width be designated as
a Future Acquisition Area.
16. Section 21 (Transportation) of the Spokane County Comprehensive Plan states that
properties adjacent to a Principal Arterial - Controlled Access Facility shall not have
. direct access to the facility and recommends a building setback of at least 35 feet from
the right-of-way of a Principal Arterial - Controlled Access High Capacity Facility. Lot
4 which is adjacent to the South Valley Arterial shall maintain front yard setbacks from
both Sldpworth Road and the South Valley Arterial.
17. The proposed short plat will be served by a public water system. The water purveyor
has determined that a Water Plan shall not be required for the proposal. Waste water
disposal will be as authorized by the Director of Utilities.
18. An Environmental Checklist was submitted by the sponsor and was reviewed by the
County Planning Department. The review considered the specifics of the proposal,
other available information, County ordinances, other reguladons and laws, possible
standard Conditions of Approval, the Generalized Comprehensive Plan, and other
County policies and guidelines. The Planning Department has determined that "No
probable significant adverse impacts" would result from the proposal being developed
and has issued a Determinarion of Nonaignificance ("DNS").
The "DNS" was circulated to eight other agencies of jurisdiction and other
agencies/departiments affected by the future development for review and commenG The
"DNS" comment period ended March 23, 1993 and was advertised 15 calendar days
before said date by letter to adjacent property owners. The Planning Department has
not received add.itional comments.
• .
FINDINGS AND DECISION SP-835-93 Page 3
DECISION
Based upon the above noted Findings of Fact and Conclusions, Short Plat Application
SP-835-93 is hereby APPROVED until May 1, 1996, subject to condirions noted
below. Most of the conditions of approval shall be accomplished by the applicant andlor
sponsor prior to finalization of the short subdivision. This decision is final unless
appealed in writing, consistent with adopted appeal procedures.
These Conditions of Approval apply to applicant(s), owner(s) of the
property, heirs, assigns or any successors-in•interest to property.
PLANNING DEPARTMENT CONDITIONS
1. The proposal shall comply with the Urban Residential-3.5 (UR-3.5) zone as amended.
Prior to filing the final plat, the final design shall illustrate conformance with the
minimum lot size and setback requirements of the UR-3.5 Zone.
2. The final plat shall be designed substantially in conformance with the preliminary plat
of record. No increase of density or number of lots shall occur without a change of
cond.ition application submittal and approval.
3. The Planning Director/designee shall review any proposed final plat to ensure
compliance with these Findings and Conditions of Approval.
4. Appropriate road name(s) shall be indicated.
5. The preliminary plat is given conditional approval for three (3) years, speci.fically to May 1, 1996. The applicant may request an extension of time by submitting a written
request approximately forty-five (45) days prior to the above expiration date.
6. Appropriate utility easements shall be, indicated on copies of the proposed final plat.
, Written approval of uti.lity easements by appropriate utility companies shall be received
with the submittal of the final plat.
7. Three (3) current certificates of title shall be furnished to the Planning Department prior
, to filing the final plat. '
8. The Spokane County Planning Department shall prepare and record with the County
Auditor a Title Notice specifying a future land acquisition area for road right-of-way
and utilities. The reserved future acquisition area Title Notice shall be released, in full
or in part, by the Planning Department. The notice should be recorded within the sa.me
time frame as an appeal and shall provide the following:
a. At least 5 feet of reserved future acquisition area for road right of way and
utilities, i.n addition to the existing andlor newly dedicated right of way along
Fourth Avenue. NOTE: The County Engineer has required 10 feet of new
dedication.
At least 30 feet of reserved future acquisition area for road right-of-way and utilities, in addition to the existing and/or newly dedicated right-of ;way along the
South Valley Arterial.
b. Future building and other setbacks required by the Spokane County Zoning Code
shall be measured fr'om the reserved future acquisirion area.
c. No required landscaping, parking, '208' areas, drainfield or allowed signs should
be located within the future acquisition area for road right-of-way and utilities. If
any of the above improvements are made within this area, they shall be relocated
at the applicant's expense when roadway improvements are made.
d. The future acquisirion area, until acquired, shall be private properry and may be
used as allowed in the zone, except that any improvements (such as landscaping,
parking, surface drainage, drainfield, signs or others) shall be considered interim
uses.
~ .
FINDINGS AND DECISION SP-835-93 Page 4
e. The property owner shall be responsible for relocating such "interi.m"
irnprovements at the time Sgokane County makes roadway improvements after
acquiring said future acquisltion area.
9. The final plat map shall indicate by a clear, dashed line the required yard setbacks from
all private, "Tract X" or public roads. The dedication shall contain the following
statement:
"Side yard and rear yard setbacks shall be determined at the time building permits are
requested unless these setbacks are specifically drafted on this final plat. The setbacks
indicated on this plat may be varied from if proper zoning approvals are obtained."
10. A building setback of at least 35 feet from the right of way of the South valley Arterial
is required for Lot 4 of the preliminary plat. Lot 4 will maintain front yard setbacks
from both Skipworth Road and the South Valley Arterial.
11. The Owner shall negotiate with the Cennrral Valley School District and subznit a
recorded copy of the agreement making provisions for public schools prior to
finalizarion and recording of this short plat. The agreement shall provide a written
description of the subject property to which the agreement applies and also state the
dollar amount and any other agreed to mitigating measure(s).
The owner shall also notify any potential purchasers who have made an agreement-to
purchase properry within said short plat pursuant'to the Revised Code of Washington
(58.17.205), that adequate provisions for school facilities must be made conditioned on
a future agreement between the plattor and school districL
Voluntary agreements between the 4wner and School District shall conform to the
requirements of the Revised Code of Washington Chapter 82.02. -
12. No water plan is required, and a simple tap is needed at the time of building permit
release.
13. A survey is requixeri prior to the filing of a final plat.
COUNTY ENGINEER'S DEPARTMENT CONDITIONS
1. That conditional approval of the plat by the County Engineer is given subject to
dedication of Right-of Way and approval of the road system as i.ndicated in the
prelixninary plat of record.
2 That plans, profiles and cross sections as designed to County standards showing
proposed street centerline and curb grades be submitted to the County Engineer for
approval prior to construction and/or the filing of a final plat; road plans to be.prepared
under the direction of a licensed Professional Civil Engineer.
3. That dra.inage plans and design calculations showing the alignment of drainage facilities
VJ be submitted to the County Engineer for approval prior to construction and/or the filing
of the final plat I?rainage plans ta be prepared under the direcrion of a licensed
Professional Civil Engineer.
4. No constzuction work is to be performed within the existing or proposed public right-
of-way until a pernut has been issued by the County Engineer. All work is subject to
inspection and approval by the County Engineer.
5. Individual driveway access pemzits are required prior to issuance of a buildi.ng permit
for driveway approaches to the county road system.
~ Dedicarion of 5 feet of additional right-of-way along Skipworth Road is required.
7. Dedication of 10 feet of add.itional right-of-way along Fourth Avenue is required.
8. A statement shall be placed in plat dedication that no direct access-be allowed from lots
to the South Valley Arterial.
9. Existing county roads providing direct access to the plat shall be paved and/or curbed to
Spokane County standards.
. ' .
. .
F]NDIlNGS AND DECISION SP-835-93 Page 5
10. Sidewallcs are required along the arterial(s) on Fourth Avenue.
11. The word "applicant" shall include the owner or owners of the property, his heirs,
assigns and successors.
12. To construct the road improvements stated herein, the applicant may, with the approval -
of the County Engineer, join in and be a willing participant in any petition or resolution
which purpose is the formarion of a Road Improvement District (RID) for said
improvements, pursuant to RCW 36.88, as amended.. At such time as an RID is
created or any Road Improvement Project is sanctioned by Spokane County, the
improvements required (curb, sidewalk, drainage control and paving to existing
pavement) will be at the sole expense of the undersigned owner(s), their heirs, grantees
and assigns. This provision is applicable to Fourth Avenue and Skipworth Road.
13. As an alternative method of constructing the road improvements stated herein, the
applicant may, with the approval of the County Engineer, accomplish the road
irnprovements stated herein by joining and participating in a County Road Project
(CRP) to the extent of the required road improvements. At such time as an RID is
created or any Road Improvement Project is sanctioned by Spokane County, the
. improvements required (curb, sidewalk, drainage control and paving to existing
pavement) will be at the sole expense of the undersigned owner(s), their heirs, grantees
and assigns. This provision is applicable to Fourth Avenue and Skipworth Road.
14. The following statement shall be placed in the plat dedication:
"The owner(s) or successor(s) in interest agree to authorize the County to place their
name(s) on a petition for the formation of a Road Improvement District (RID) by the
petition method pursuant to Chapter 36.88 RCW, which perition includes the owner(s)'
property, and further not to object, by the signing of a ballot, to the formation of an
RID by the resolution method pursuant to Chapter 36.88 RCW, which resolution
includes the owner(s)' property. If an RID is formed by either the perition or resolurion
methai as provided for in Chapter 36.88 RCW, the owner(s) or successor(s) further
agtee:
(a) that the improvement(s) or construction contemplated within the proposed RID is
feasible;
(b) that the benefits to be derived from the formarion of the RID by the property
i.ncluded therein, together with the amount of any County participation, exceed the
cost and expense of formarion of the RID; and
(c) that the property within the proposed RID is sufficiently developed.
Provided further that the owner(s) or successor(s) shall retain the right, as authorized
under RCW 36.88.090, to object to any assessment(s) on the property as a result of the
unprovements called for in conjunction with the formation of an RID by either petition
or resolution method under Chapter 36.88 RCW, and to appeal to the Superior Court
the decision of the Board of County Commissioners affirming the final assessment roll.
It is further agreed that at such time as an RID is created or any Road Improvement
Project is sanctioned by Spokane County, the improvements required (curb, sidewalk,
drainage control and paving) will be at the sole expense of the undersigned owner(s),
their heirs, grantees and assigns without participation by Spokane County.
The R1D waiver contained in this agreement shall expire after ten (10) years from the
date of execurion below. However, the owner(s) or successor(s) agree that if said RID
waiver expires without construction of the required improvements, the owner(s) or
successor(s) agree to construct the required improvements at their own expense, pay to
Spokane County the then estimated cost of the required improvements to enable the
County to complete the same, or furnish a bond or other secure method suitable to the
County (which may include the execution of another RID waiver agreement) providing
for or securing to the County the actual construction of the improvements.
All of the requirements of this agreement shall run with the land and shall be binding
. upon the owner(s), their successor(s) or assign(s)." This provision is applicable to
Fourth Avenue and Skipworth Road.
FINDINGS AND DECISION SP-835-93 Page 6
15. The County Engineer has designated Typical Roadway Section Number Two, Collector
Arterial Standard for the improvement of Fou.rth Avenue which is adjacent to the
proposed development. This will require the addition of approximately 10-12 feet of
asphalt along the frontage of the development. The construction of curbing and
sidewalk is also re,quired.
16. The County Engineer has designated Typical Roadway Section Number Two, Local
Access Standard for the improvement of Slcipworth Road which is adjacent to the
proposed development. This will require the addirion of approxi.mately 30 feet o
d.
asphalt along the frontage of the development. The construction of curbing is als~
required.
17. The proposed private road as shown on the preliminary plat senring 3 lots is approved
by the County Engineer.
18.- That private road be improved to Spokane County standard for a urban private road
standard serving 3-41ots. Subject to approval uncier section 10.207 of the Spokane
County Fire Code.
19. All vested owners shall sign and record private road documents as prescribed by the
Spokane County Engineer. These documents shall be reviewed and approved by the
Spokane County Engineer prior to recording with the Spokane Counry Auditor.
Recording numbers shall be referenced in the dedicatory language of the plat.
20. That the following statement be placeti ui the plat dedication: "WARNING: Spokane
County has no responsibility to build, improve, maintain or otherwise service the
private roads contained withi.n or providing service to the property described in this
plat. By accepting this plat or subsequently by allowing a building pemvt to be issued
on property on a private road, Spokane County assumes no obligation for said private
road and the owners hereby acknowledge that the County has no obligarion of any laDd
or nature whatsoever to establish, examine, survey, construct, alter, repair, improve,
maintain, provide drai.nage or snow removal on a private road. This requirement is and
shall run with the land and shall be binding upon the owner, their heirs, successors or
assigns including the obligation to participate in the maintenance of the private road as
provided herein."
21. The proposed plat shall be improved to the standards set forth in Spokane County
Board of commissioners Resolution No. 80-1592, as amended, which establishes
regulations for roads, approaches, drainage and fees in new construcrion.
22. The County Engineer has examined this development proposal and has determined that
the impact of this proposal upon the existing County Road System warrants the
dedication of addirional Right of Way and the roadway improvements herein specified.
23. Applicant shall dedicate the applicable radius on Skipworth Road and Fourth Avenue.
24. The County Arterial Road plan identifies plan idenrifies Fourth Avenue as a collector
Arterial. The existing right of way of 40 feet is not consistent with that specified in The
Plan. In order to implement the Arterial Road Plan it is recommended that ul addition to
the required right of way dedication, a strip of property 5 feet in width along the Fourth
Avenue frontage be set aside in reserve. This property may be acquired by Spokane
County at the time when Arterial Improvements are made to Fourth Avenue.
25. The County Arterial Road Plan identifies South Valley Arterial as a Principal Arterial..
The existing right of way width of 100 feet is not consistent with that speclf'ied in the
Plan. In order to implement the Arterial Road Plan it is recommended that in addition to
the required right of way dedication, a strip of property 30 feet in width along the South
Valley Arterial frontage be set aside in reserve. This property may be acquired by
Spokane County at the tune when Arterial Improvements are made to the South Valley Arterial.
26. The applicant should be advised that there may exist utilities either underground or
overhead affecting the applicants property, including property to be dedicated or set
aside for future acquisition. Spokane County will assume no financial obligation for
adjustments or relocation regarding these utilities. 1'he applicant should check with the
applicable utilities and Spokane County Engineer to deten-nine whether the applicant or
utility is responsible for adjustment or relocation costs and to make arrangements for
any necessary work.
. .
FINDINGS AND DECISION SP-835-93 Page 7
28. The applicant shall sign a"SPOKANE COUNTY NOTICE TO T.I-E PUBLIC NO. 4"
which will allow for the construction of a private road within the Slapworth Raad Right
of Way. .
COUN'TY HEALTH DISTRICT CONDITIONS
1. The final plat shall be designed as indicated on the preliminary plat of record and/or any
attached sheets as noted.
2. Appropriate utility easements shall be indicated on copies of the preliminary plat of
record for distribution by the Planning Department to the utility comparv.es, Spokane
County Engineer and the Spokane County Health District. Written approval of the
easements by the utility companies must be received prior to the submittal of the final
plat. 3. Sewage d.isposal method shall be as authorized through the Director of Utilities,
Spokane County.
4. Water service shall becoordinated through the Director of Utilities, Spokane County.
5. Water service shall be by an existingpublic water supply when approved by the
Regional Engineer (Spokane), State Department of Health.
6. Prior to filing the final plat, the sponsor shall demonstrate to the satisfaction of the
Spokane County Health District that an adequate, and potable water supply is available
to each tract of the plat.
7. Prior to filing the final plat, the sponsor shall present evidence that the plat lies within
the recorded service area of the water system proposed to serve the plat
8. A public sewer system will be made available for the plat and individual service will be
provided to each tract prior to sa.le. Use of individual on-site sewage disposal systems .
shall not be authorized.
9. A sta.tement shall be placed in the dedicarion to the effect that: " A public sewer system
will be made available for the plat and individual service will be provided to each tract
prior to sale. Use of ind.ividual on-site sewage disposal systems shall not be
authorized."
10. The dedicatory language on the plat shall state: "Use of private wells and water
systems is prohibited." ,
11. The final plat dedication shall contain the following statement: „The public water
system, pursuant to the water plan approved by county and state health authorities, the
local fire protection district, County Bui,lding and Safety Department, and water
purveyor, shall be installed within this subdivision and the applicant shall provide for
individual domestic water service as well as fire protection to each lotltract prior to sale
of each lotitract and prior to issuance of a build.ing permit for each tract"
COUNTY UTILITIES DEPARTMENT CONDITIONS
1. Applicant will make connection to Public Sewer System. Sewer Connection Permit is
required. Plans and Specifications are to be reviewed and approved by the Utiliries
Department
SPOKANE COUNTY FIRE PROTECTION DISTRICT NO. 1
1. An emergency vehicle turn-around needs to be provided if 3rd Avenue does not loop
back to 4th Avenue. A hammerhead configuration at 3rd Avenue and Skipworth may
be OK. Please contact us in regard to an acceptable turnaround.
.
FINDINGS AND DECISION SP-835-93 Page 8
MODERN ELECTRIC WATER COMPANY
1. Water main in Skipworth must be extended to near north property line of 3rd Avenue.
2. Developer will be responsible for 67% of all costs for extending water main. This
portion of the project falls under our latecomers agreement. Therefore if anyone
connects to this portion of the water main within S years, they wi11 be responsible for
paying you 33-1/2% of the water main installation cost.
3. Developer will also be responsible for paying share of fire hydrant to be installed on
3rd Avenue. Lots 2, 3 and 4 will be assessed $233.00 each for hydrant. Six other lots
will share in the cost of this hydrant. This hydrant is required by MEWCO approved
comprehensive plan.
4. If this plat requires owner to give County additional right-of-way along 4th and
Skipworth, the ownerideveloper will be responsible for costs of relocarion of property
stop valves and meter vaults if required.
Approved the 41 day of April, 1993.
PEDERSON
enior Planner
For: Tammy Jones, Planner Y
Under State Law and County Ordi.nance, you have the right to appeal this decision to the
Spokane County Hearing Examiner Conunittee. Upon receipt of an appeal, a public hearing
will be scheduled. If you desire to file such an appeal, you must submit a letter along with a $200 processing fee, payable to the Spokane County Treasurer, within ten (10) calendar days
from the date this decision is signed.
If you have any questions, please call the Planning Department at 456-2205.
,
pc: County Engineer
County Utiliries
County Health Di strict
County Building 8i Safety
Central Valley School District #356
Dorothy Harding, P.O., Box 14377, Spokane, WA 99214-0377
Lawrence Dunsmore, North 1115 Pines Road, Spokane WA 99246
Gary Kreshel, East 11301 4th Avenue, Spokane WA 99206
Harvey Nelson, P.O. Box 14126, Spokane WA 99214-1626
~
r
OFFICE OF THE SPOkANE COUNTY ENGINEER
811 North Jefferson, Spokane, WA 99260-0170 (509)456-3600
-SHORT PLAT REQUIREMENTS-
TO: Spokane County Planning Department, Plats Administrator
FROM: Division Of Engineering & Roads Sco"TT E:F.
DATE: April 7, 1993
SUBJECT: SP # 835 / HARDING* DOROTHY
The followinq "ConBitions of Approval" for the above referenced subdivision
are submitted to the Spokane County Planninq Department for inclusion in the
"Findings and Order" should the short plat be approved.
E 1 That conditional approval of the plat by the County Engineer is given
subject to dedication of Right-of-Way and approval of the road _system as
indicated in the preliminary plat of record.
E 2 That plans, profiles and cross sections as designed to County standards
showing proposed street centerline and curb grades be submitted to the
County Engineer for approval prior to construction and/or the filing of
a f inal plat; road plans to be prepared under the direction of a
licensed Professional Civil Engineer.
E 3 That drainage plans and design calculations showing the alignment of drainage facilities be submitted to the County Engineer for approval
prior to construction and/or the filing of the final plat. Drainage
plans to be prepared under the direction of a licensed Professional
Civil Engineer.
E 6 No construction work is to be performed within the existing or proposed
Public Right-of-Way until a permit has been issued by the County
Engineer. All work is subject to inspection and approval by the County
Engineer.
E12 The applicant should be advised that individual driveway access permits
are required prior to issuance of a building permit for driveway
approaches to the County road system.
E13 Dedication of 5 feet of additional Right-of-Way along Skipworth Road.
E13 Dedication of 10 feet of additional Right-of-Way along Fourth Avenue.
E14 A statement shall be placed in plat dedication that no direct access be
allowed from lots to the south Valley Arterial.
E16 Existing County roads providing direct access to the plat shalt be paved
and/or curbed to Spokane County standards.
E18 That sidewalks are required along the arterial(s) on Fourth Aventie.
E19 The word "applicant" shall include the owner (s) of the property, his/her
heirs, assigns and successors.
E20 To construct the road improvements stated herein, the applicant may,
with the approval of the County Engineer, join in and be a willing
participant in any petition or resolution which purposes is the
formation of a Road Improvement District .(RID) for said improvements
pursuant to kCW 36.88, as amended. At such time as an RID is created or
any Road Improvement Project is sanctioned by Spokane County, the
improvements required (curb, sidewalk, drainage control and paving to
existing pavement) will be at the sole expense of the undersigned owner,
their heirs, grantees and assigns. This provision is applicable to
Fourth Avenue and Skipworth Road. E21 As an alternative method of canstructing the road improvement stated
herein, the applicant may, with the approval of the County Engineer,
accomplish the road improvements stated herein by joining and
participating in a County Road Project (CRP) to the extent of the
required road improvement. At such time as an RID ic created or any
• .
SHORT PLAT: # 835 / HARDING, DOROTHY ,2
Road Improvement Project is sanctioned by Spokane County, the
improvements required (curb, sidewalk, dra-inage control and paving to
existing pavement) will be at the sole expense of the undersigned owner,
their heirs, grantees and assigns. This provision is applicable to
Fourth Avenue and Skipworth Road. E22 That the following statement shall appear within the dedicatory language
of the final plat: The owner(s) or successor(s) in interest agree to authorize Spokane
County to place their name (s) on a petition for the formation of a
Road Improvement District (RID) by the petition method pursuant to _
Chapter 36.88 RCW, which petition includPS the owner(s) property, and
further not to object, by the signing of a ballot, the formation of
a RID by the resolution method pursuant to Chapter 36.88 RCW, which
resolution includes the owner(s) property. If a RID is formed by
either the petition or resolution method, as provided for in Chapter
36.88 RCW, the owner(s) or successor(s) further agree: (1) that the
impravements or construction contemplated within the proposed RID is
feasible, (2) That the benefits to be derived from the formation of
the RID by the property included therein, together with the amount
of any County participation, exceeds the cost and expense of formation
of the RID, and (3) that the property within the proposed RID is
sufficiently developed. Provided, further, the owner(s) or
successor(s) shall retain the right, as authorized under RCW
36.88.090, to object to any assessment(s) on the property as a result
of the improvements called for in conjunction with the formation of
a RID by either petition or resolution method under Chapter 36.88 RCW,
and to appeal. to the Superior Court~the decision of the Board of
County Commissioners affirming the final assessment roll. It is
further agreed that at such time as an RID is created or any Road
Improvement project is sanctioned by Spokane County, the improvements
required (curb, sidewalk, drainage control and paving) will be at the
sole expense of the undersigned owner, their heirs, grantees and
assigns without participation by Spokane County.
The RID waiver contained in this agreement shall expire after ten
(10) years from the date of execution below. However, the owner(s)
or successor(s) agree that it said RID waiver expires without
construction of the required improvements, the owner(s) or
successor(s) agree to construct the required improvements at their own
expense; pay to Spokane County the then estimated cost of the required
improvements to enable the County to complete the same; or furnish a
bond or other secure method suitable to the County (which may include
thE execution of another RID waiver agreement), providing for or
securing to the County the actual construction of the improvements.
Al1 of the requirements of this agreement shall run with the land and
shall be binding upon the owner(s), their successor(s) or assign(s).
This provision is applicable to Fourth Avenue and Skipworth Road.
E24 The County Engineer has designated Typical Roadway Section Number Twoi
Collector Arterial Standard for the improvement of Fourth Avenue which
' is adjacent to the proposed development. This will require the addition
of approximately 10-12 feet of asphalt along the frontage of the
development. The construction of curbing and sidewalk is also required.
E24 The County Engineer has designated Typical Roadway Seccion Number Twot
Local Access Standard for the improvement of Skipworth Road which is
adjacent to the proposed development. This will require the addition of
approximately 30 feet of asphalt a'Long the frontage of the development.
The construction of curbing is also required.
E26 The proposed private road(s) as shown on the preliminary plat serving
3 lots is approved by the County Engineer.
F27 That p.rivate road (s) be improved to Spokane County standard for duCbaZL
private road standard serving 3-4 lots. Subject to approval under
- •
~
SHORT PLAT: # 835 / HARDING, DOROTHY . 3
section 10.207 of the Spokane County Fire Code.
E30 All vested owners shall sign and record private road documents as
prescribed by the Spokane County Engineer. These documents shall be reviewed and approved by the Spokane County Engineer prior to recording
with the Spokane County Auditor. Recording numbers shall be referenced
in the dedicatory language of the plat.
E31 That the following statement be placed in the plat dedication: WARNING:
Spokane County has no responsibility to build, improve, maintain or
other wise service the private roads contained within or providing
service to the property described in this plat. By accepting this plat
or subsequently by allowing a building permit to be issued on property
on a private road, Spokane County assumes no obligation for said privzte
road and the owners hereby acknowledge' that the County has no
obligation of any kind or nature whatsoever to establish, examine,
survey, construct, alter, repair, improve, maintain, provide drainage or
snow removal on a private road. This requirement is and shall run with
the land and shall be binding upon the owner, their heirs, successors or
assigns including the obligation to participate in the maintenance of
the private road as provided herein.
E32 The proposed plat shall be iniproved to the standards set forth in
Spokane County Board of Commissioners Resolution No. 80-1592, as
amended, which establishes regulations for roads, approaches, drainage
and fees in new construction.
E33 The County Engineer has examined this development proposal and has
determined that the impact of this proposal upon the existing County
Road System warrants the dedicaticn of additional Right of Way and the
roadway improvements herein specified.
E38 Applicant shall dedicate the applicable radius on Skipworth Road and
Fourth Avenue.
E61 The County Arterial Road plan identifies Fourth Avenue as a Collector
Arterial. The existing right of way width of 40 feet is not consistent
with that specified in The Plan. In order to implement the Arterial
Road Plan it is recommended that in addition to the required right of
way dedication, a strip of property 5 feet in width along the Fourth
Avenue frontage be set aside in reserve. This property may be acquired
by Spokane County at the time when Arterial Improvements are made to
Fourth Avenue.
- E61 The County Arterial Road plan identifies South Valley Arterial as a
Principal Arterial. The existing right of way width of 100 feet is not
consistent with that specified in The Plan. In order to implement the
Arterial Road Plan it is recommended that in addition to the required .
right of way dedication, a strip of property 30 feet in width along the
South Valley Arterial frontage be set aside in reserve. This property
may be acquired by Spokane County at the time when Arterial Improvements
are made to the South Valley Arterial.
E90 The applicant should be advised that there may exist utilities either
underground or overhead affecting the applicants property, including
property to be dedicated or set aside for future acquisition. Spokane
County will assume no financial obligation for adjustments or relocation
regarding these utilities. The applicant should check with the
applicable utilities and Spokane County Engineer to determine whether
the applican'% or utility is responsible for adjustment or relocation
costs and to make arrangements for any necessary work.
SPECIAL CONDITION:
The applicant shall sign a"SPOKIINE COUNTY NOTICE TO THE PUBLIC NO. 4"
which will allow for the construction of a private road within the
Skipworth Road Right-of-Way.
ieeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeegReport Viewerfleeeeeeeeeeeeeeeeeeeeeeeeeeeeeee;
°PAGE 2 13:31:00 25 MAR 1993 0
°Road# Road Names.......... MPost. Reference Descriptio Road Log Info..........
005833 4TH AV 00.000 DISHMAN-MICA RD U 17 LIGHT BITUM. 220
0 00.230 FAP.R RD U 17 LIGHT BITUM. 22
005834 4TH AV 00.000 STEEN RD U 19 GRAVEL 260
0 00.120 FLORA RD U 19 GRAVEL 26
0 00.190 COACH ST U 19 PAVED 40.0
0 00.270 P,RC ST U 19 PAVED 40
0 00.370 TSCHIRLEY RD U 19 PAVED 400
005835 4TH AV 00:000 BMP of road U 19 PAVED 27
0 00.150 MOEN ST U 19 PAVED 160
0 00.240 GREENACRES RD U 19 PAVED 16
0 00.490 BARKER RD U 19 PAVED 160
0 01.000 HODGES RD U 19 LIGHT BITUM. 16
006045 4TH AV 00.000 FARR RD U 17 PAVED 200
0 00.230 HERALD RD U 17 PAVED 20
0 00.380 FELTS RD U 17 PAVED 200
0 00.630 UNIVERSITY RD . U 17 PAVED 20
0 00:700 VAN MARTER RD U 17 PAVED 200
0 00.880 PIERCE RD U 17 PAVED 20
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ieeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee~Report Viewerueeeeeeeeeeeeeeeeeeeeeeeeeeeeeee;
°PAGE 3 13:33:39 25 MAR 1993 0
°Road# Road Names.......... MPost. Reference Descriptio Road Log Info..........
0 01.140 BOWDISH RD U 17 PAVED 200
0 01.230 WILBUR RD U 17 PAVED 20
0 01.290 FOX RD U 17 PAVED 200
0 01.360 UNION RD U 17 PAVED 20
Q 01.380 UNION RD U 17 PAVED 200
0 01.540 WHIPPLE RD U 17 PAVED 20
0 01.740 HOUK RD U 17 PAVED 200
0 01.860 VERCLER RD U 17 PAVED 20
0 01.920 LETA RD U 17 PAVED 200
0 02.150 MCDONALD RD U 17 PAVED 20
0 02.400 BLAKE RD U 17 PAVED 400
0 02.470 LEATHA LN U 17 PAVED 40
0 02.650 EVERGREEN RD U 17 PAVED 200
0 02.780 BOLIVAR RD U 17 PAVED 20
0 02.870 BEST RD U 17 PAVED 200
0 02.940 REES CT U 17 PAVED 20
0 03.090 WARREN RD U 17 PAVED 200
0 03.150 ADAMS RD , U 17 PAVED 20
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S P O K A N E O U N T Y
OFFICE OF THE COUiNTY ENGINEER • A DIVISION OF THE PUBLIC WORKS DEPARTMEU'I'
Ronald C. Hormann, P.E., County Engineer Dennis M. Scott, P.E., Director
AGREEMENT TO PAY FEES
ENGINEER'S AGREEMEN'I' NUMBER S~ p p3E)
~
This a reement benveen S okane County and ~-v A
~ p kname bL person)
whose interest in the project is ri t~ o ov e ~
ki:6-own~r, agcnr, eLc.)' t `
is ~ntered in'Lo 'Ll-iis / 4~ day of ~ c> f.:..~ , 19 ~7 2~ This agre~ncnt is applicable to the Niojca
I known as: ~
(proJecL aaaress or tuename a: uie nuiuoer)- Y , V
That the individuals and parties named herein as having an interest in the above described property or
project agree to the following:
1. Reimburse Spokane County for project review and inspection fees as specified in
Board of County Commissioner's Resolution 80-1592 attachment C, as arnended.
~ The fees will be based on actual salary costs incurred by Spokane County for project
reviews and / or inspections plus a ten percent administrative charge, and will be
billed monthly as accrued.
2. The undersigned agrees that these fees are due and payable upon receipt of the
billing as specified above. The monthly billing should be sent to the attention of:
,r
,
NA.ME:
A.DDRESS: 3JV ~ G
CITY, STATE: `
_ 1;~
ZIP CODE:
a
PHONE
I understand that failurc to pay these fees may rees~lt in delay in completion or approval of the project or
other possible sanctions. / -
SIGNATURE By:
ot;
(PRINT NAME)
RETURN YELLOW COPY TO SPOKANE COUNTY ENGINEERS
4;1g\ ,,agreemen.fee 3/9~?. 611 )effer5~~n Spokane, Wt~ 99260-0180 (509) 456-3600 F.~X ( 09? 4715
RE 1 q 1'v 93
~\gVlagreemen.fec ;/~~811 )efferson Spokane, WA 99260-0180 (509) 456-3600 FAX (509) 456-4715
y
VARIANCE # /1PP1..,ICAN1'S NAN1 E
BLDG # ~
OTHER # MAILING ADDRESS 3a4 ~ U &JnN
s_...~? I . T~ S~ . a 4Z+ S e CA. Lc qcf&~--G 31
FARCEL # PI-IONE - HOMF ;3(5 c..,. ~
ROAD NAME O 2 PHONL - WORK
The following documents are needed before the Spokane County Enginecr's Department can begin processing your
variauce or building applicarion as approved. (509) 456-3600
~ AGREEMENT TO PAY FEES have been coilected.
~ RECORDED COPY OF DEED, DEED OF TRUST, contract or conveying instrument. These may be
ee obtained from the County Auditor, 2nd flour of the Courthouse. _
t/ f • - . - ~
LEGAL DESCRIPTION of your access easement. " -
~ A LISTING OF NAMES of individuals who will be signing the documents. These individual uames-
should appear as the person(s) legally sign their dame. _
I AK d) #-L Zi
~ A &
, A CURRENT ASSESSOR'S MAP which depicts the locatio❑ of your properry.
OWNERSHIP MICRO-RiJN. These niay be obtained from ihe County Assessors, 1st floor, of the
Courthouse, Jefferson entrance, 2nd door on the left.
The nece,ssary documents will be prepared by the Engineer"s Department, Right-of-Way Section, upon provision of
the infortnation noted above. You will be notified when the documents are ready for signature. The documents may
be sent to you, howcvcr, IT SHOULD BE NOTED THAT ALL SIGNATURES MUST BE NOTARIZED. The
. Engineer's Department does have notaries available if you choose to sign the documeats at our officc;.
~ Please call when ready Please mail when ready
Notice to Public Ri ht-of-Wa
g Y
COMMENTS G ~ ~~'2 ~ln.rlf'~ "e / D~
~
~
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Right-of-Way Agent IRnO A Forward to you from •~i ~c~~'' fl~
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k\p\f\notice.192
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S P O I< A N E C O "L1- N T X
. PL.ANNING DEPARTMENT WALLIS D. HUgBAI2D, DIRECTOR
° MEMORANDUM
'PO: Spokane County Division of Engineering and Roads
Spokane County Division of Buildings
, t SPokane CountY Division of Utilities
Spokane Counry Health Dismct
Fire District # 1
~ .
~ Modern Electric Water District
Central Valley School District RECEIVED
FROM: Jim Millgard, Planner I - AUG 03 1993
DATE: August 2, 1993 SPOKANE CpUNTY ENGINEEA ,
SUBTECT: Final Short Plat SP-835-93
;
Enclosed find copies of the above referenced final plat. Please review and forward any
comments by August 16, 1993. If you have any questions you may contact Jim Millgard at '
456-2205. '
Please d.irect your written comments to Jim Millgard. ;
~
Thank you. ,
~
sam
Enclosure
c: Dorothy Harding, P O Box 14377, Spokane, WA 99214 0377 ,
WEST1026 BROADWAY AVENUE • SPOiCANE, WASHINGTON 99260-0240 •(509) 456-2205
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CEUs
if you wish to receive CEU credits for your
attendance at the conference indicate on the
bottom of this form the sessions you
attended and fill in your name onlV on the
certificate. We will compute the CEU credits Na
and mail you the certificate. (Print your name
clearly on the certificate and initial the
sessions you actually attend. )
Note: CEUs are awarded on basis of 0.1
credit per actual contact hour.
wt SURE TO TURN IN THE COMPLETED
FORM AT THE END OF THE CONFERENCE.
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16-4 ~ .
TRANSAMERICA TITLE INSURANCE COMPANY
720 NORTH ARGONNE
SPOKANE, WASHINGTON 99212
(509) 922-2222/FAX 926-1519
PREPARED FOR: SP835_93 Order No.: ME-175411M
HARDING'S REALTY Certificate for Filing Proposed:
ATTN: DOROTHY OPPORTUNITY
N. 304 UNION RD.
Charge: $125.00
Tax: 10.00
Total: $135.00
SECOND
PLAT CERTIFICATE
Effective Date: June 25, 1993 at 8:00 a.m.
In the matter of the subdivision to be submitted to Spokane County for
approval, this company has examined the records of the Spokane County
Auditor's and Clerk's offices, and the office of the Clerk of the United
States District Court holding terms in said county. This certificate is
made for the purpose herein specified, and is not to be used as a basis for
closing any transaction. Liability is limited ta the amount paid for this
certificate. E'rom such examination, the company hereby certifies the title
to the follawing described land, in said Spokane County, to wit:
The East half of Block 175 of OPPORTUNITY as per plat thereof recorded
in Volume "K" of Plats, Page 20;
EXCEPT the West three acres lying South of the Railroad Right of Way
thereof ;
EXCEPT Railroad Right of Way;
AND TOGETHER WITH the East 21.60 feet of the West Three Acres of the
East half of Block 175 of said plat of Opportunity lying South of
Railroad Right of Way;
Situate in the County of Spokane, State of 6Vashington.
VESTED IN:
KENNETH HARDING and DOROTHY HARDING, husband and wif e.
EXCEPTIONS:
l. Taxes and assessments, if any, no search having been made thereof, as
to Parcel No. 45212.0701.
2. Liability to future assessments by Spokane County for Storm Water
Drainage.
t, a
page 1 of 2 ,3UL 11993
GOUo iDgI(lw-i,
v
Order No.: ME-175411
3. AGREEMENT AND THE TERMS AND CONDITIONS THEREOF:
BETWEEN: Modern Electric Water Company
AND: D.K. McDonald and others
DATED: November 4, 1905
RECORDED: November 6, 1905, Book "E" of
Contracts, page 267
RECORDING NO.: 131084
REGARDING: Providing for construction of
ditches, flumes, water pipes, etc.;
erecting poles and electric
distribution lines, with right of
ingress and egress to maintain said
pipes, 1 ines, etc.; and prov iding f o.r
lien for unpaid charges for such
service.
TRANSAMERICA TITLE INSURANCE COMPANY
c ~
l
Micki Erwin, Title Officer
sac
page 2 of 2
. ~ ~ ~ .
Spokane County, Washington.,
TRANSAti9ERICA TITLE tNSURANCE COMPANY
This skEich is pravided, without chargo, for your
information. ii :s not intended to sh:~K all matters
retatGc! :a the proGsrty 6ncltidin5, bui not l;mitsd
to, asQS, dimensors. easf'•IT:6>n4S, encroachrr2nts, or
location oj bou:lds: ias. It is noi p2rt of, nor'does
it modity, ihe remrnitment or policy to which it is
att2ched. The Compar.y assumes NO LIAS!:.17Y for any
matter related to this sketch. Referencs shauld be
made to an accurate survey for further information.
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FROM ANGLE DIST NORTM EAST TO
SP 835 TRACT 1,2,394 S I DEL I IVES 7-1 5--93 U. B.
AUTO INVERSE
START 2574.18024 3872. 1 0945 21
21 I iVV IV 89 40 14.0 E 106. 7000 2574. 79375 3978. 8V_t7E+9 22
22 I NV S 0 00 19.0 W 531.2800 2043.51376 3978.75875 24
24 INV a 89 36 44.0 W 81.5500 2042. 96183 3897. ?i0E2 25
RAD I AL S 0 23 16.0 E
DELTA 90 23 31.0 RT
RAD I US 20.0000
TAN 20.1373
L-ARC 31.5527
RAD T AL N 89 59 45.0 W
RR 2062.96137 3897, @7526 26
25 CHORD N 45 11 30.5 W 28.3808 2062.96283 3877.0752E 27
TAhlCdPT N 0 00 15.0 E
27 I NV N 0 00 15.0 E 361. 2400 24c4. `02B3 3877. 1 0153 26
28 I iVV S 89 40 14.0 W 5.0000 2424. 17408 387`. 10161 29
29 I NV N Qi 00 15.0 E 150, @000 2574. 17408 3872.11252 30
LAT R DEP 0.00617 --0. 00307
30 HCLOSE N 26 2E 28.2 W 0.0069 `574. 18024 3872. 10945 21
F'REC = 1 TO 183968 Area = 54E93. 95 sq ft 1.25560 ac
List : from 40 to 41
40 49987. 48175 303174. 03200
41 49965. 7`493 303196.03066
END L i s t
FROM ANGLE DIST NORTH EAST TO
SP 835 PLAT BOUNDRY 7--1 5-93 D. B.
AUTO INVERSE
START 2033.50232 3978. 757E4 19
19 INV S 89 36 44.0 W 106. 6900 2032. 78025 3872. 07008 20
20 I NV N 0 00 15.0 E 541. 4000 2574. 18024 3872. 1@945 21
21 INV N 89 40 14.0 E 106.7000 2574. 79375 3978.80769 22
22 I NV S 0 00 19.0 W 541.2800 c03;. 51376 3978. 75783 23
LAT & DEP' -0. 01 144 -0. O0019
23 HCLOSE S 0 57 35.0 W 0.0114 2033. 50232 3978. 75764 19
F'REC = 1 TO 113292 Area 57757.76 sq ft 1.32594 ac
~
FROM ANGLE DIST NORTH EAST TO
SP 835 l"RACTS 173,174,175,176 TRACT BC]UNDRY 7--15-93 D. P.
AUTO YhIVERSE
START 2000. 00000 c0Qi0. OtZt0fLi0 i
1 INV N 0 01 14.0 E 663.4000 `6E3. 39996 2000.23800 2
2 INV N 69 40 14.0 E c65l. 48@0 2678. 6,4JJ9 4651.67417 3
3 INV S 000 ► 9. 0 W 660. 5900 `018. 0S5E0 4651.58130 4
4 I NV 5 89 36 44.0 W 1325.6800 2009. 08 ;47 3325.93166 5
5 IhlV S 89 36 27.0 W 1325.9600 `000. 000lE 2000. 00`77 6
LAT & DL`P -0. 0001 E -0. 00`77
6 HCLOSE S 86 43 57.0 W 0.0028 2000.00000 2000. 00000 1
PREC = 1 TO 2388424 Area = 1755210. 08 sq ft 40. 29408 ac
ERROR:Invalid Command: Cpr,.
FROM ANGLE DIST NORTH EAST TO
1" RACT 173,174 S I DEL I hlES
AUTO INVERSE
STAR7 2000.00000 :'000. 0000O 1
1 I NV IV 0 01 14.0 E E63. 4000 `663. 39996 `000. 2a800 2
2 I NV N 89 40 14.0 E 1 325. 7400 ►'671. 02277 3325. 95E09 7
7 INV S 0 00 08.0 W 661. 95rD0 2009. 07278 3325. 93041 8
8 I NV S 89 36 27.0 W 132S. 9EQ+0 1999. 98947 2000. 00153 9
LAT & DEF' 0. 01 053 -0. 0Q+ 153
9 NCLOSE N 8 14 38.7 W 0.0106 `000. 00000 ;?000. 00000 1
F'REG = 1 TO 373679 Area = 87859E.45 sq ft 20.16980 ac
FROM ANGLE DIST NOR1"H EAST TO
TRACT 175,176 SIDELINES
AUTO INVERSE
START :'009. 07278 3325. 93041 8
8 IiVV N 0 00 08» 0 E b61.. 9500 2671. a"77 33?S. 95609 7
7 INV N 89 40 14.0 E 1325. 7400 2E78. 64559 4E5].. 6741.7 3
3 INV S 0 00 29.0 W 6E0. 5900 2018. 05560 4651. 58130 4
4 I NV S 89 3E 44.0 W 1325.6800 2009.08347 3325. 931 66 5
LAT R DEFI -0. 01 069 -0. 00124
5 HCLOSE S 6 36 14.4 W 0.0108 2a09. 07`78 33`5. 93041 8
PREC = 1 TO 3E9215 Ar-ea = 876627. 80 sq ft 20.12461 ac
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FROM ANGLE nIST NORTH EAST TO
SP 840 EXTERIOR STREET CENTERLIh1ES 7--14-93 D. an
AUTO INVERSE
START 20QiQt. 0Qt0O0 ►=:000. 000rZrO 1
1 I h!V N 0 03 27.0 E 539.8900 2539.88973 `000. 54181 2
p I NV a 85 4; 46.0 E 2628.8400 ► 5:-_'7. 47E 17 4629. ;a251 ;
3 Ih1V S 0 04 33.0 W 5394 7100 1987. 76E64 46`8. b3818 4
4 INV N 89 44 00.0 W 2E28. 6700 2000.00098 1999.99665 5
LAT & DEP -0. @0098 0.00335
5 HCLQSE S 73 40 27.8 E 0.0035 `000o 00000 200@, 0000O 1
PREC = 1 TO 1814110 Area = 1418990. 94 sq ft 32.57555 ac
5 INV IV 0 03 28.3 E 539. 889tD 2539. 88973 ~00Q+. 54181 2
FROM ANGLE DIST NORTH EAST TO
LOT 3
START 1000. 0Q►0O0 1000.00000 1
• i
DECLARATION OF COVENANT
In consideration of the approval by Spokane County of
,(hereinafter ref erred to as the
"Development"), the undersigned covenants and agrees that:
1. The subdivider/sponsor will construct the,private roads and associated
drainage facilities in conformance with the approved plans on file in the
County Engineer's Office. 2. A lot is served by a private,road when: -a. the only road frontage for
the lot in the Development is on';;the private - road; or•; b. a lot having
frontage on more than one road(public or~private) constructs an approach to
the private road. . tt' ~
3. The owner(s) of any lot createdby the*Development or alternation thereof
and served by a private road shall be responsible for maintenance of said
private road, including associated drainage facilities in conformance with
approved plans on file with the County Engineers office.
4. Maintenance financing of the private roads and associated drainage
facilities shall be in a manner determined by.the owners of:
a. the majority of lots served•;,by; such ,private road;
b. the maj ority of frontage .-of;~lots ..served by such private road;
c. the majority square footage~o.f.lots served by such private road; or
d.
5. In the event such private road, including associated drainage facilities
is improved to Spokane County standards for public streets, and the County
' is willing to accept the dedication of such road and facilities, each lot
owner shall execute any documents necessary to accomplish such dedication.
6. Owners of lots within the Development who are served by such road, may
sue and recover damages and attorney's.fees from.any owner of any lot within
the Development which is similarly,-served:who refused to participate in the
road and drainage facilities,.construction,'tfinancing, and maintenance.
7. WARNING: Spokane County has no_;responsibility to bu-ild, improve, or
maintain or otherwise service the private roads, including associated-
drainage facilities, contained within or providing service to the property
described in this Development. By accepting this Development or subsequently
by allowing a building permit to be issued for property on a private road,
Spokane County assumes no obligatioh;,for said private road and the owners
hereby acknowledge that the County has no obligation of any kind of nature
whatsoever to establish, examine, survey, construct, alter, repair improve,
maintain, provide drainage or snow,removal on a;private road, or associated
drainage facilities.
8. This covenant and agreement shall,,run,with-the land and shall be binding
upon the owner, their heirs, successors or assigns, including the obligation
to •participate in the maintenance :of the private road, and drainage
facilities as provided herein. .
OWNER
OWNER
STATE OF WA3HINGTON )
• • •~7=ir.DATED : this day of , l9 •
.
"y _,t.f~~` %d .•f!'•
CountY of spokane ) : ' . - .
On this day personally appeared before me.
known to me- to be the individual(s) described in
and who executed the within and foregoing instrument and acknowledged that
he/she/they signed the same as his/her/their free and voluntary act and deed
for the uses and purposes therein stated.
GIVEN UNDER MY HAND AND OFFICIAL SEAL this day of , 19~•
Notary Public in and for the State
. . of :IWashington, residing at Spokane
t, ,k' •+r~+ - '
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k\j\f\declara.pr . 3/90
DETERMI,NATION OF
NONSIGNIFYCANCE - "DNS"
WAC 197-11-970 and Section 11.10.230(3)
SPOK:ANE ENVIRONMENTAL 4RDINANCE
FILE NUMBER: SP-835-93
DESCRIPTXON OF PROPOSAL: The subdivision of approximately 1.3 acres into 4
lots for one existing single fami.ly residence and three new single family residences and
those other uses allowed in the underlying zone.
APPLICANT: Dorothy Harding
P O Box 14377
Spokane, WA 99214 0377
LOCATION OF PROPOSAL: Generally located on the northeast corner of 4th Avenue
and Skipworth Road in Section 21, Township 25 North, Range 44 EWM, Spokane
County, Washington.
LEAD AGENCY: SPOK:ANE COUNTY PLAr1NING DEPARTMENT
DETERMINATION: The lead agency for this proposal has detennined that it does not
have a probable significant adverse impact on the environment An Environmental Impact
Statement (EIS) is not required under RCViT 43.21C.030(2)(c). This decision was made
after review of a completed environmental checklist and other information on file with the
lead agency. This information is available to the public on request.
This DNS is issued under WAC 197-11-340(2); the lead agency will not act on this
proposal for at least 15 days from the date issued (below). Comments regarding this
DNS must be submitted no later than 4:00 p.m., April 7, 1993, if they are
intended to alter the DNS.
RESPONSIBLE OFFICIAL: WALLIS D. HUBBARD, PLA1`1NING DIRECTOR
By: Tammy Jones, Planner I
Phone: (509) 456-2205
Address: Spokane County Planning Department
1026 West Broadway Avenue
Spokane, WA 99260
DATE ISSUED: SIGNATURE: u
APPEAL OF THIS DETERMINATION, after it becomes final, may be made to the
SPOKA.NE COUNTY PLANNING DEPARTMENT, 1026 West Broadway, Spokane,
WA 99260. The appeal deadline is the same as the above project's appeal deadline, being
ten (10) calendar days after the signing of the decision to approve or disapprove the project.
This appeal must be written and the appellant should be prepared to make specific factual
objections. Contact the Planning Department to assist you with the specifics for a SEPA
appeal.
This DNS was mai.led to:
1. WA State Department of Ecology (Olympia)
2. WA State Department o£ Health
3. Spokane County Health I?istrict
4. Spokane County Engineer's Office
5. Central Valley School District
6. Fire District - 1
7. Modern Electric Water District
8. Spokane County Air Pollution Control Authority
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SPOY.AHE EKYIFOFME1iTAL OROIIiAHCE
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(VAC 197-11-960) Section 11.10.230(1)
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fnvironmental Checklis[
F11e No.
' Purpoze of Cnecklist:
Thc State Environmental Polity Act (SEPA) chapter 53.21C RCu, requires all qoverrrnental agenclcs to Consfder the environmental iiapacts of a proposal
before rw king decisions. An Environmenial Impect Statement (£[S) must 6e prepared for all proposais u1[h probable signSficant adverse inpaCCS on
the quality of the environmenc. The purpose o£ .his checkiist is to provide information to help you snd the agency ideneify impacts frcn your
proposal (and to reduee or avoid.impacts from the proposal, if it can be done) dnd t0 help the aqency deCtde xhether art EI$ 1S reqvfred.
Inztructions far Applicants'
This environmenGal eheCklist asks you to destrl5e sone basSt infornvtion ab w t your proposal. Governinen2al agenCies use this cheCklist to determine
whether the envirom m n[al impaets oF your proposal are stqnifiCant, requtring qreparstion of an E(5. Answer the quesiions Criefly, xith ifie most
preeise information kn arn, or give the bcst descriflcfon you can.
You must answer eaeh question ec[uratr;l ;,,C to the best of your knowledge. In most cases, you shoutd be able to ansxer the qvestions
fr-an your ovn observetions or pro)ect plans utthait the neeci Co hire experis. It you really do not f:now Cne ans•aer, or 1f a question does not apgly
to your proposal, xritc 'do not knou' or 'does not epply.' Ccn+plete answers to the questions no++ may avoid unnecessary delays later.
5ar.~ qvestions ask aboit governr,enLal-reaulations, svch as zoning, Shoreiine, and Iandmarl deslgnations. Ansxer thesc qvesttons lf you Can, ff yov
have probleras, the goverrmental agencies can asslst you.
ihe checklist questions apply io a11 perts of your proposal, even 1( you plan to Qo their, over a perio6 of tine or on Eifferent parcets of Vand.
Attaeh any aclditional lnformitton that v(II deserlbe your proposal or its envSronaentai effects. T'h: agency to ++h1Ch you submli Chis checklist may
ask you to explain your answers or proriEe edditional Info nnatlOn reasonably rclated Co deCernininq tf there may b: Sipnifitant acfverse im0att.
Use uf checkilsc for nonproject proposils:
Canplete this checklist far nonproject proposals, even tnough qutstlons may be answered 'does not avP1Y'••
IX ADOITION, ea4plete the SUPPIEriENTAI. SHEET FOR NONPROJECT ACT14H5(Part D).
For nonpro,}ect aCtionT, the rc.'erences in the Chctklist :o Che eards 'pro}etc,' 'appllcant,' and 'proaer;f or site" Should be redd as 'proposal,'
'proposer,' and 'affeeCed geographlc aree,' respectively.
A, BACKGROUKO
✓ 'la mc o f Q ro p o s e d p ro j e c c, 1 i a p fl i t c ab 1 e.•'`"~f"'~'-~=-~'7
. ~
1 •
2 . K a rne o f A p p 1 1 c a n t: ~e
• r :
3. hddre-,s and phone nvnbcr o` applttan: or contaCt person:
40-1~/ i-)Q y' r~ ' ~ ` •--✓1 J ~ . ~
4. Oate cheeklisi preparcd: y'- 41, ~
S. Ageney requestinq Check.liSC: %j ,v~if ' "
5. Proposed timinq or schedule {inciuQing phas6nq, i` aopl(Cabic).
7. a. Do you have any plans (or future addittons, expanston, or further attlvlty related to or cormet[e6 -:ith this Qreposal? t( yes, expiali,.
A/J
b. Do you own or heve options on land nearby or adjaccnt :o thfs proposal? (f yes, expi,tn.
8, llst any cnrfronm►_ntai lnformation y w knov ebout that has been prepared, or xtll be prepared, dfrrctly reiated to tnis proposal.
• ko
• • ' ,
Rev.Z/1J88 - ' Nt • y' :
CM . . .
SPOT.AITZ ENVxRONK-vlTiAL OftD[HAJ11GY
(uA(: 157-Li-960) Seccioo 1.1.l0.230(1)
i &ACXruOURD (coaCloucd) 9. Do yw lrnov v2,cchcr appllcatloos arc peodl g for Eovern,aen-el approvale o-f ocher propoa.ls dircctly a(feccing che pcopcrty covcrcd Sy your
Dzopo.Al' [C ycs, cuplalo. .1
lU. L.LeC aoy govcrnmcnc approvals oc pctalte Chac vill bt nncdcd fo[ your pioposaJ., Lf lrnovn. !/,s(~ !r ~ i~' ~~'sL'~'i'c' G~
ll. Gtvc a brieC, eecpleCe deierlptlon o!- yw: proposal, 1iuluding lhe propoeed wee and the a Lce of the pro)ett and e1Ce -here A re ecveral
~ qucaclons Later !n ehia elvckliac chac Aak you to dcaertbc eerc&in erpecCs o( your proposal. You do no[ nced co cepmt choac anxvers on thls
paEc.
' ~ f• r~J . I A.~/ f.~~ll I Y l i ~1 ~ V~ ~ 1 V l l/~~~,e"~~l•a..~~J~~~
~ ~
`'~,`'I '3 ~
i'-. '.-ocxc+_oo oC che propoenl Clvc ru!(:eicnt !n(orms[lon for a pereon to unders:An-f che preeime loc.+;ien of your pcopoecd projeet, !neludinC a
e[rcec addcce►, 1( Any, and icCC:on, tovnahtp aoA fange, If knovn. ?f , propos+l woulu oecuf ovcr . rxngc of srca, pruvtGc ihr_ cangc or
bounda[4e3 o: Che aiea(a) Frovtde + IeZ il CeaerFpeion, ilec p lan, vltlnlty aap, and ".opofir+pltile m-Ap, reuonably avatLi ble. `Publr, you
nhould 3uLniC •ny p"ue tequlred bp [Te agr.neY, yw ire nor reQulred to duplitate raapa or dceilled pLans zulnlticd -Lth eny pe'rntc applleatloti
reLccd to ctLa eheeklts c.
4,~ • ` .r
~ '✓,,J ~ 7 t'~, ~ ^ `5 S' - /
~ ~G fT~ ~.I ~ 77 j_/ r ,n .
i
13. Ooee the p[Opoaed aeiLon lte vl.hin the tiqulCer Senaltlve Area (KSA)? ,-he General $ev ct Seev:ce Ac ca? 7he Fr!orlty Se%--ce $atv;ce Atca? -hc
C:ry o( $pol"nc? (Sct' Spokaoc Councy'e ASA Ovcrliy Zonn AClee (or bound,rlaa). 1JiQ ~,C, J1 •r r.-s rj~ r~`~
'O b C CO1tYi.L':Z D b T APPLI C1.M
b. Y.ISVIROi'rt~.~AL r-.1?tLNI'S '
Eva1w[ton For
Agcncy Uee Only
a. General deeerlp[Son ot Che 3Ite (tlrele onc .i~fl.ac, olling, hllly, sceep alopee, nounteinoui,
ochec:
• -
D. !!hn[ La Che sEeepest ilopn on [hc alcc (appCOxlmaLc pereent slope) ?
.f
c. 'rhst gcaeral [rpes o: soile aie .`ound on the iiCe (tor ey-Aaple, elay, eeod, $t~vel Qea[, mvtk)?
you knov [ht claealCleaclon of agtleul[urel •oila , .peeify them end noce\eA~tae tarolend. dA(~a C,~/~t~1 W,~-LXI~
d. krc there surf.ee Snd?Cetlo or hLLor7 of uru[aule .oil. Ln chr Lmmedia,e v:tl.n12y? I` so,
deseriDe. CZ,A/~ '
.
,
2
SPOY;ANE ENY(fiOHnExTAL OROIHANCE
` (uAC 19)-11-960} Sectfon 11.10.230(1)
8. Ef1YIROKKEHTAI ELENEHTS(continued) • ~
' Evaluation For
' Agency Use Only
C. Oescrfbe thc purpose, typc, and approzirrate quantities ~f any fillinq or 9reding prc~posed. inditate sourcc of fill. /~13 !1j
f. Could eroslon o a ur as a resu{t of clearing, construction, or use? It so, generally describe.
NO
g. About wha[ percent of the slte will be covcred with impcrvious surfaces after praject construc-
, tton (for example, asphalt or bulldings)7
' U
h, Proposed measures to reduce or conirol crosion, or other impaCts to the earth, it any:
r f
AIR .
a. 11hat type of emissions to .he atr Kould result frorn the proposal (i.e., dust, avtanobile, odors
induzcrial, wood s+ruke) 6uring conscruction and when Lhe projcct is completed? t( any,
generally describe and glve approximate quzntites if knc,+n.
/I` fJ /
b. kre there eny of{-site sources oi efiissfpny~ odor thac may affcct your proposal' tf sa,
9enerally descripe.
C. Proposed measures to reduee or conerol emisslons or other impacts co air, tf any:
l~ l•i ! ,
~
. f
3, uArER
a. Surlace:
(1) 1s there eny surface wacer boQy on or in the 1mrnee-iace vtcinity ot [he slte fnclu6i nq year-
round and seasonai screams, saltuater, lakes, pon6s, ++etlands)? 1f yes, describe type and
provide names. If aQpr•opriate, state xhat stream or r1ver it (loxs inLo.
• A/ U
CO)
(2) ►lS11 tht Qro}eec requtre any York over, 1n, or adjaecnt Lo (xithSn 200 teet) Lhe descriDed ~
waccrs? (f yes, please destrtae ind attaeh avaflable p lnns.
~ O
,
• SF'UICANE LWIRO1ritY2tLlL ORDIN,l2tCE
~ ('.+AC,197-11-460) Secclon 11.10.230(1)
S. LNVIROh^SiNT'al. ELLTfEK:'S (con[lnucd) • '
, Evaluation Foc
1,senty Uae Only
(J) EeC1r~,sCc [he smounC of C111 wnd dredge o.+terial [M t vould bc placed ln or rcmoved (com thc
au((att wAcer oi weclnpda and indlceCe Lhe nr" of Lhc eicc Cha[ -C•i ld be afCccCcd, indtutc
the 3ourcc of f111 macerlal.
cl e'>
(4) lllll the proposal rcquit'c surfacc vate[ vlthdravale oc dlvcreLorwT C1vc a Icner&l deecrlp-
tion, purpoee, and approxime[c quan[lclca, 1f knw n.
• j,
(S) Doee the propoeal lie wtthln a 100-year llwd pLfn? If 5o, notc loeicion on the ai[e plar.
(h) Dota Chc proposa! (nvolvc ony dlachsrgce of veatc anteriala [o 3uCfecc vaCcra? 1{ ao,
de3Crlbe Chc type ot weece and encleSpa[cd volumc of dletharga.
J Y~ ~
5. cfo.,nc:
(1) V1lI EroundvztcC bc vIChd:'AVn, oi vtll wetcc be d1at.harLCU to FroUndvetef'. G1vc gcneCal
deaCr(pClon, pveposc, end approxlec.s[e quaatFCles, 11 'r.iovn.
D o 1,{ 0 ;7.~ ~ C.-J
(2) DeaCrtbc vaste macerlal tha[ vlll bc diiehacgcd lnto [he ground from .cptie c•nks or ocher
eanttar'y vsa[e [reaMene fAelllCy Ac3erlDe Che geocral mLzc of ttu syecm, the nurabcz o(
hou3cs CO be acc-+cC (:f applteable) pr ihc nwnber of periortn Che sys[eo(a) xrc expetccd co
scrvt.
1~ ~ S 1/, a t r~ ~..IF, 0 C-7 V2,
Dtstrlbc any eyeteos, o(her than those designed !0[ Lht Algpoaal o[ sanLCsry vas te,
ineCalled foC [he puc'poae of dlseh&rging Ilvids Selov the groun6 sur(aee (lneludes aystcas iuch
ee thoae (or tlu diaposnl of scaro vaccr or Aralnage fcon floor dCalns). Dcscribc [he eypc oi
eyncem, the amount of ineLerlnl to bt dCa pos ed o( Chrough tTie i/s [ea and the cyr-.i of maeerlelo ~
llti.ely [o be dlaposed of (lneluding m.tcrtale vhieh m.y entec inc ayn[em tnadvcrcencly through
3p1113 or an a rceult o( (1re(lghzlnE .ctlvl[is.).
" a
~'J v u.J ~
~
(4~ G'i1l anp thcnle►at (tapeei.lly o[sanLe .olvcnCs o[ petrolcum fvel•) be acoied In above- 40'
ground or undcrground ecor.ge c,oks? IC so, wMac cypes and Qu.ntttics ot m.ccrl,il. Will be Ilk
sCo rcd'.
~ Y ID
. '
ti~d~,~,: •
G
4?OKAl2 E?1V7IRONTSYN'U-1. ORDItiMCE
(4.1C 197-11--960) Scccion 11.10.230(1)
~ B. 'CNVIROtR21iTA1. I:1.LTtEtt-S (conGinUed)
• Evaluatlon For
Agcnc7 Uee On.1y
(S) Whi[ procec[!vt oeerureE Vill be tAken Co lnauie t1u[ luke o[ •p11l• of •ny thealtals •
scorcd or uaed on si[e will not bc a1loved to pereola[c to groundva[cr (Chls includen oc+surcs
to keep thcmlcals ouc o( disposal syatcaa dcsulbed in 3a(2) and 3b(3)?
5-7 1 •~7 w.~ J ~ .
c. Vatcr P.unoCf (lnciuding eCorv viEcr).
(1) Dcicribc chc .ource of runoff (Including ecorm vaccr) anA mechod of collection and dloposal
Sf eny (Fncludc QuantlCSce, it known) . Vhere vlll thls untcr fiov? utll Ch1e vnccr Clov lnto
other vacere'. ao, dcecrlbc.
(2) :llll any eheeleale be otored, hendled or used on the altc in a lo u tlon vhere a splll or .
1eA1; v1L1 draln to eucfacc or groundwatcr o[ to e s[oro vo«r dieposel syetm dllecharglnL (o
sur(aee oc grounrSvacer?
. ~o
(J) Lould veecc oaccrlals cn:cr ground or mur(Aee vw[ecs? 1! eo, Lenetally deseribe.
N I
6. YtoposeC meeeurea to cedu u ot <oottol auefaet, ground, and :vnotC 4A[C: tmpaeCI, l( any
C chc pro2o4eA •eClon l[ci v1cA!n tht Aqut(er $ennlCive Arae de eopr,elally ele.r on explenittone
r rel•cino to fAe:lities eonecrn!ng Seecfon. 3b(4), 3b(5), ,nd 3e(2) o( this ehcekl?.c):
r~(~'n~'~ • ~ ; -
f .
4. P l.A: r'f S
a. f:heek o' tlrtle typc o( vegtc+.ion (ound on the altc:
deelduout :ree: .1 der, u plc, espeo, other. ,
evcrgrecn trcc: fir, ecd.r, plne, other. 3hruDa.
4 grA - e.
pai[ure.
crop or 3raln.
wec 3oil plar,[e, uC[ail, buttercup, bullrueh, skunf: cabbege, othee.
wn:er plants: vaec[ 1!]!y, celgYiag, v11:ot1, o[her
othec typc# of vcSaeaCion. 40
b. uhat klnd end empvot o( vegetaClon v511 be t'enoved or altcred'. J
, ~ .
. ~
e. L1st Ch[u teneE ot cndangered .pce(ta lcnovn (o be on o[ ncer Che siie. '\1 C:O
d. °roposcd i•nd,c.ping, wc o( tivc plents, or oLher mcu res co eecrre or nhenec vegc[+c;on
on Che slcc, 1f sny: ~ p
U ~
, ` ; : It~'
S ~
SPOKAKE EhVIRONHEHTAL OROfHAHCE
, (VAC 197-11-963) Section 11.110.230(1)
8. MIROtCiEHTAL ELENEKfS (contfnued) .
Evaluatlon For
Agency Use Only
S. Att1Nk; 5
a. Circle any bir6s and animals xhtich have bcen obzerved on or near the site or are knoxn to be on
or near the site:
birds: hauk, heron, eagle, sorigUirds, other:
mjmmals: daer, bear, elk, beaver, othcr:
fish: bass, salmon, crout, herring, shelifish, othcr:
other:
b. LisL any threetened or endan9ered species kno,+n to be on or near the site.
~
c. Is the site part of a miqration route? If so, explain,
d. Proposed neasures to prescrve or enhance wildlite, if any:
i !
S. Et+ERGY :.110 !iATUAAL AtSOURtES
a. tlhat kinds of enere,y (elec[ric, natural gat, wood scor•e, solar) w111 be uied to rnoct the
the eompleted project's energy needs? bescribe uhecher it uill be used for heacing, manufac- .
turing, ctc. r • ~C~~.~'~LLL~- l f.
Wovld your project a.`teCC the pocentiat vze of solar enei•gy by adjatent propertles, if so,
gene: a l ly dcscritie
C. uhet kinds of enerqr conservatlon features are included in ihe plcns of :h1s proposa}? ltst
othrr proposed measures to redvCe or concrol energy irnQacts, 1f any:
7.~T.
~h
. ~
l. ERYlROHttENiAl_ 11EFLTH
a. Are there any environaental heal[h ha:arCs, includ(ny erposure ta coxic cherniCals, ris}. o( (ire
and explosion, spili, o+' hazerdous uasce, thet could occur as a resull af enis proQosel' If so,
describe.
e
4k
COND
(1) Deseribe special ;merqency :ervlces chat mfghC be required.
A J'h. 6 U ~ 4- 1 ► ~
L) e, _ l~ .S •
6
SPOY.A.'+`E £Fn'iP.OYKXNTJ..L 0S!)F4A1.1CE
(WtiC 197 ;11-9Gb) Scctlon 11.10.230(1)
B. L`rVIRONt:L'trIAL 'LLYlfL1t'Y'S (conClnucd)
. . ` Lvalu&Clon Fo[
E11VIR0?.Etr AL H[AL'N (coocinucd) 4enc7 t)se Only
(2) Yroroscd mcamuree to ccdute or con[rol e'.ironmental hcalth hezards, any:
• ~ t
b. 1+oi o c :
(1) WhaL typec ot noiSe exlac ln the arca vhich may e(fcc[ your pro)ctt (for czdmptc: Ccn!fic,
equlpa_nc, operecion, o[hcr?
I 2_ A-
(Z) tifhat cypes end levels of nolsc wou.ld bc creatcd bY or assocleted vfCh Che pco)ec[ on e
ehore-cero or a long-tero bes1o (for eximple, creftle, eonae.rueclon, opers tlon, other)? indleeee
vhac houcs nolen vould come from the air.e.
n
11~ 1 s ~ a ~ ~ , ~ ~ d~ C~~tv~~~t.r.fl. c- j`~ `~'II~'-~'Q1i
-T
tiJ) Propoacd mceau;e ;o ceduec oc concrol notaG tapncta, 1( aoy: '
S. L1'!D ANA 51tOREl.ltlE USE
~
a. %.'ha[ ls Chc turt•enC uat o( the elcc ind edjetcnt propcr::ce' /Aj g I ,.,p
~ /
~ . . , .
-J-?rag'ri!ultU7C' C-p
b. 11ns ehe slce becn ue~ : I( eo, deneribc. ~•v
5' rE- r ' , u S (A•,~G~ ,'`1. Lt. ,
C. Dcscribc enr a[ruc[u[cs on the s1Cc, t 0 ~
' A-UO-1- -r J
LCh)'L-C~r
Q. uill any atruc[urei be dcaollshed? il so, v'h1eh?
j'~-'1y~-'~'w. L~
IT.
)111(1.3
(~n ~
~
e. u'~mt !c Chc currcne zoning elnaelElutlon of chc siLe' ~ )Z"
cA JW3`,~
~lhet 1 s Che eurrent eooprahenelve p L n derlgn+cion o[ [he sScc?
~
41
g. I( .pplicable, vhat le the eurrent .horcllne mAacer program dulgnation oC the eiLe?
h. }Ins any parC of the iSte been tlassllled as an -enviroanencAlll iecutclvc" aceaT II so, 4 ,
epeelCy.
CD
1. l.pprozim.tely hov m.or people vould re.lde or votk Ln the eoapleced proJee:1 •
G" ~ J' i 1 ~ • . l
. S°OT.A212.' riVLR02itTNL.L 01"ItUI?1C°
(tlAG 197-11-960) Seccion 11.10.230(1)
L. E1tyLROtML1iTA.i. eLL'aNTS (concioucd)
' . • ' . °veluatton For
• J.gency Use Only
Approximecely how many pcoplc would che coapleCed p'ojeeE ditplaec'. A/ z2 .
r. PCopoeed ousu[co Co evoid or reduec dlepla cmenc imprCtn, it eny:
.✓i~ r ~ ' ~ - , > ~ ~
. ~
1. P[opOsed aeaaurea [o eneuie che p[opoeal Ss comperible WtCh exieCing and pTOjeeted L nd ueee end
plena, LE eny : 1 (/.IfI~;1
t .,.1.
9. 1i0U5111G
A. Approxima[ely hov aany uni[s would bc provldcd, i( eny? IndleaCe vh.ethcr high^, l~ddle- or
l0w-1 ncox houe S ng . ~ ! ~ ~ c • 'J~
b. Approxiesately hov wny unica, if any, would be elinlnaccd7 2nd1 u ce whecher hlgh-, middlc-, or
low-incoac houaing.
e. Propo•cd meesurea [o redUCC or eontrol hou.ing lmp.ece, if ar%y:
~
. .t .
10. AtsTri~r~ts
a. NhsC is che Callcnc hcighe of •ny propoaed attueturc(■), no: ineludlnE entannes? ltha[ li chc
prlnelpai exrerlor buildlns cucarlal(e) propoecd?
1 ' i
• i ff~J i ~ ~ L~- l,/.~ f r., r' ~`'s- ~a ~ .
~ -
~
b. tfiat vdcws ln Che Sczmcdiitt v(cintty would bc a1CtCCd OY oD+LrvCtedi
c Propoaed mea•ures Co rcducc or con[rol aco thcclc imp.ec., tf •ny:
!1. LICIt" 1.NC Gti.IP.:
e. i ec7Pe of ltghe or glere vSll Ehe propo..l produee? 'Ih.t c!oe o( ~l.r vrald tt oulnly oeeur?
~k :S O ''Yr- 1 .~c C~ ~ A-- v ~ i.~l .'d, •~J R ~ ~
L71 ~o h/ At ~
( ' tL t
b. Cou,ld ltghc or glwre (roa che f[ni.hed proJeec bc ..~:cc7 hnurd or laCerfere with view7
C. LTa[ exi.t4ng o:t-alCe . w ree. oC llgTc or gl.rc n.+r .tleeE your proponal?
~ - ~
d. Pcoposcd neesuTCr to reduet o[ control light and gl.rc LmpacCo, if •n7:
SPOXANE LNVIROKi{EK"°AL OADLTfA14C;.'
(4AC 197-:1-460) Sccclon 11.10.230(1) .
~ b. &:IROh?''.L?zTAL LI.L2SEh'IS (coACioucd)
. Eveluatlon Fot
AgcnGy Uae Only
12. RECRt,I?IOti
A. t!};aC dealgnaCed and in:orml rcccnetiona2 oppoc[uniCiee arc 1n the immedlaCc vicinlCy?
C t
r7f'~ A--- CV (.i1 ~ l~7
~
b. uould the propoeed projecC diepl..acc eny exi■ting recrcetlon.l uaee? L( so, dencriDc.
C. Propueed :ncesuree to reducc or eonC[o-l LmpaeCs ort rceru tion, inCluding rcerenClonal opportunl-
cies eo be pcovided by the proyeec or appll u nt, if .oy:
13. NIS'OP.tC AND C1Jl.TURAL P?.ESERVA'IOH
A. Arc Cheie eny plat u or objeeCs 11aCCA on or propoaed fof natlonel, a[eCe or Local prtscrva-
clon rtslatcra knoLr co be on or nex[ co the slcc? If so, generally dc.er[be.
D. Gencral2y du eribc aRy lrndaarke or cvtdenee o( hieeor:e arehaeologleal, seiencif!e or eulcur.l
:oportanee 1a;own to De on or ncxc co thc .lte.
C. Propoecd etaeuTea :3 :cduce or control lopecc., lt any:
14. Tr.AiisP'Oi.-nTtoN
A. Ilen:![y publie strceti •nd hlghvnys serving the aitc and dtaerl9e propoaed etecae co the
cx:.[ing eCCCCC iyf!ce. Shov-on st[c plnni, iI nny. '
SA,- / 'v GU t., /_12 G''/ ~~C,~- a~~-~✓
. ~
Ij & t),
L/ P /
- ~
b. It iite eurren[ly .erved by public crAnslc' If not, vhat 1s [hc approximw[e d1sCanec .o the
nureac trenaiC Itop? (~c~~.rj ~ `1/ ~J j,_ / I
/ ' . A y ~ ~
lIn n(.li'1x01.~ W►~1~~~ ~
C. Ilov enany parking ,p•ees vould the eomple[ed projeee have? llcav m,n7 would the pro}eeE nllain.cc?
C r LU ~ ~j`, ~ ~ !~t ~ /~'11`'~ ~i~'r1.Q-~ ~/1!~,l-r.XJ
. ' . (iD Lv
d1k
d. V!11 :eyuSCC any ntv Coads oi stfeeCA, or !mpYOVCmenCs Co exlating Yoeds o[ BiCccts
no: lneluding drlvcvi7a? T( to, generally deaeribe (lnul1 u te vhecher pubile or flclvete). ~
..~s ~
~ 7- 7- ~ ~ t~2
, .
. ~
c. V121 the p[ojett: usc (o[ oeeur in the lamediace vieiofcy o(} %.eccr, rs14, or :z eraneportacton?
if so, gene!aJ,17 dcscribe. '
9 ~L
, ~
sFOr.,,xE etrviRoar;alv,:aL OP.AS4A11CE -
~ (VAC -;7-11-960) Seccion 11.10.210(2)
t. E1iVIY,0:M9H"AL Ll.@SENTS (conclnucd) '
Evaluation for
AgcnC7 Uee Only
f. Eiov anny vchicul►: Cr1pe peC day ww1A be gcnccatcd by che c wpleccd pco)cc['. Lt knovn,
indicace wTxn pwk would occur. ,
J
. ~ -r c ~s ~'r-- ►2 h r, y I93 ~ .
S. Propoacd measurce co ce6ucc or concrol transpor[ation impnu it, i( anq;
~ -
1$. PUBLIC SEhViCES
A. '.lould the pro}ect reault Ln en lntre.red nced lor pu511c •cr-rlccn (Eor e7cemple, firc proCccClon,
pol:cz prc:c:tfon, health csre, +Ghoola, oChcr)? I( so, gcnetilly desCTlbt.
l,h i
`P ~ ~ ~ I' n : r ~ ` r • ~ ~ -r
~ • .
b. Propoacd flcaaures to rcduce oc control direcL :tapetCs on publtc ..rv!cc., 1` eny:
• ~ J ./.J ' r s `0
r
. ` .
16. U-ILI:IES ~ r _
~
a. Circlc uti e cuc7cnC2y_aval1pblc e( thc al[t: cR4ccrlciCy, n[u[al ga, ,~~+aCc Tefu-ee
~.r.---
e cvf tclcphon anelterysci scptlc ayAicm, oCnc:.~
w...~_...~ t ~ 60 ~ ~ ~ _ ✓ ~ rJ_) /
i
b. Dcectlbc Chc uclat!ice [hac ecc pCOpoecd (or the pro}ccc, Chc utfliCy p:ovlding t}u scrv![c and '
the ecneral f.OnaCCU4fLOn actlvtcies on Chc stcc or in che tomcdiatc .1elntty wh.ieh eight bc
n e c d e d . B 1~_'
t, -
C. SICNATURC
. ~
I, ehe undcrnlgned, sv u r undec thc penalcy o[ perJury thwc ehe •bove reaporres are mAdc eruehfully wnC to Che best of ny knovledge. 1 also
,understsnd thac, •1ou.ld cherc be any wIllfu] cilarcpresentatfon oT w12lful lack o: full Alselosure on ny pnrt, the !Acney m.y viehdr,v any
deeerwinacion of nonsig,ilClunee chit It otghe i■.ue Ln reli.n.ee upon chis eheeklisT..
0 a C e: J ~ 4 t ~ P r o y o n e n c Z} t~~ < f"` ~J~.. ~ ~ 1•-
(Pic"c Prln[ or Type) t
P c o q o n c n t: / 1 t Ad d r e.. :
(5lgrv'CUCe) ~
~3 5 ~
n.~
Pcroon complctlnE fot~: / Q 7/~ OeLc.
?honc: 6,/ A^1 w
FOR STl.PP USC O1tLY ~
$tAlf inember(a) rcvtcving ehr,crllsc'
3Aacd on ia suI( revicv of the cnvlronmencal theekli.< <nd ot1+._r pcrclnen: lnCormattnn, t1v o[Af(.
A. , Conelude+ ChAc [hc[c aic no p:oa.blc •ianl(ieanC •dverie Lnp.trS and teCtdseab• + dctteal m CLon ot nonilgolC:C+,nee.
a. _ Coneludea thaC pcobaale .isal{4eant .dvc-se environacnt•2 lmpae:s do ezt ee (or the eurrcnt p:oPoskl aad recommend+ + mleiaaCed deter-
mxcutlon o[ oonrtgai(icAocc %elch cooditlor+..
Goneludeg tMt ttiere .re yroMble ,ignlfiuoe .dVeue eariroamencal Lmp.eeo •od Yeeaamenc. + decera:n+eloe of si=nlfie.nec.
.rLzxC rLM - 05.00
~ ~ ~ ~
V/
D~~AR 2 3 1933
9 ► k
S n o Ec _
A N ~ C O U N T Y
I'LANNING DEPARTMENT INALLIS D. HUBBARD, DIRECTOR
MEMORANDUM
TO: Division of Engineering and Roads
Division of Utilities
Department of Buildings
Spokane County Health District
Spokane County Fire District #1
Modern Electric Water
Central Valley School District
FROM: Tammy Jones, Planner I~.~.
~
DATE: March 23, 1993 .
SUBJECT: Preliminary Short Plat SP-835-93
. Attached is a copy of the application and proposed preliminary Short Plat map submitted by
Dorothy Harding for the subdivision of 1.3 acres into 41ots for one existing single family
dwelling and three new single family dwellings and those uses allowed in the underlying
zone.
Please review this proposal and return your comments and recommendations by Apri17,
1993. If you have any questions regarding this file, you may contact me at 456-2205.
Please direct any written response to Tammy Jones.
Thank you for your prompt attention.
sam
Enclosures
c: Dorothy Harding, P O Box 14377, Spokane, WA 99214 0377
WFST 1026 BRO.qDWAY AVFNLiE • SPor:ANE, WAsHtNIcroN99260-0240 •(509) 456-2205
• "
~r~
' ' ~t!(i
PLANNING DEPARTMENT
.e ~ f' ~ .
~ J i, .
1~0•~.t GOV+t. GDU~t .O~1t
PRELIMZNAR~.'" SHORT PLAT APPLICATION
pARx z
A. C7-ENERAL YNFnRVtATZC)N:
1
,
NAME OF APPLICANT/REPRESENTATIVE: ,A "
MATLING ADDRESS:
. , , .
- % .
CITY: : ~ . ~ STATE: 7IP: L ~ ~ ~ ' ~ ~ . , '
1'HONE: (work) ~ . - ~ • / (home)
XF AT'PLICAiNT TS NOT OWNER, XNCLUDE WRTTTEN OWNER AUTHORTZATION
FOR APPLTCANT TO SERVE AS REPRESENTA.'Z'IVE.
LEGAL 01~VNER'S NA~Z~E: ,j . ~'t: / ; -f i i~ , 'i . ~ j~ r PHOh'E:
MAILLNG ADDRFSS: f ~ .r~ c_' f / `f ~ ~ , ~ ` ~ r~. • , ' Y_ - , - ; ~ , ; j
PROJECT/PROPOSAi. SITE AREA (-,icres or sc7. ft) ~
ADJACENT AREA OW~TED OR C4NTRQLLED (acres or sq. fi.)
ASSESSOR PARCEL 4S OF PROJECT/PROPOSA.L • . ~ t • ~
ASSESSOR PARCEL #'S 4F ADJACEtNT AREA 04VNED OR CUti"l'R0LLED
STRF_ET ADDRESS OF F'cZOPOSAL i ~ / ~ ` ' ~ / , !r •
-
ExlsTrlG zoNE CLASSIFIC.47I0\(S) (DATE LSTABLISHEU)
-
EXISTING USE OF PROPERTY
COMPREP1ENSIVE PI.r-1\j CATEGORY ; ~ • : ~~1 , ~
SCi-COOL DISTRICT I/
FIRE DISTRICT WATER PURVEYOR
PROPOSED USE 4F PROPERTY:
Sirlglc family dwellings ('A, Duplcxcs Mul6Family dwcllings
iuanu[acturcd homcs ( ) Busincss ( ) Indusu-ia1 ( ) Mixcd Usc ( )
Other ( ) - Describe:
I_IST PREVIOUS PL.4Nti'ING DEPARTMENT ACr IOi~S INVOLVI'NG T1-{IS PROPER7Y:
~ B. Lrr AL r-NIr< ORiM.47,rON;
LOCATIbN OF PROPOSAL:
~ ~
~ SECTION / TO~~~\TST-iIP . RA..i'~GE
CY0 ~ - ~
itiAMC OF PUBLTC ROAD(S) PROVIDING ACCLSS:
• f , . ~
W1 DTH QF PROPERTY FR4NTING OiN P[JBI_1C ROAD: f~.: ~
DQF-S THE PROPOSAI._ ri•r1VE ,aCCESS TO AN ARTF_}2IAL OR PLANNED A.~
r ~.1: ~ r s: r
NA-i\-ZF-(S) OF AR'TERIAL ROADS
~
LEGA.~ DESCRIPTIO~I OE= PROPCRTY (AlLach leg~ll descriplion stampc.d by Lanti ~~pyor~,-,JM ~C:~TDE~y;~ ~
LEGA1.. DESCRIP"['ION FOR E?~FTIRE ARE~~ TO BE SUBDIVIDET~ ON PRELI~ r1'~ f~~ `
.:YV. •b 't ~
j ~ _ R ~.,~,1 :•u ; ~f,~'•,''"'',S'~' ~
~i /-'`1 ,~+~i~ / ~ ,r t . ~r i / ~ ~ I / i - y~ S 4c
r'`^;~ra .3•I.3f~ /
.7
. 1
• ` V
PR.ELIM.INARY SHORT PLAT APPLICATION . Page 2 of 4
IF YOU DO NOT HOLD TITLE TO PROPLRTY, WHAT IS YOUR INTEREST IN IT?
WHAT ARE THE CHANGED CONDITIQ NS OF THE A.REA WHICH YOU FEEL MAKE THIS
PROPOSAL WARRANTED?
WHAT IMPACT VdILL THE PROPOSED SHORT PLAT HAVE ON THE ADJACENT PROPERTIES?
WHAT FACTORS SUPPORT THE PROPOSED SHORT PLAT?
L 0-0 r_-~ I Nr ;ck-
t
WHA7' MEASURES DO YOU PROPOSE TO M[TIGATE YQUR PROPOSAL'S IMPACT ON
SURROUNDING LAND USE?
C. pRELr1viINARY SHORT pLAT CENERAL INFnRNtAjION:
NUMBER OF LOTS: GROSS A.REA:
TYPICAL LOT SIZE: 6' l) PROPOSED NET DENSITY*:
SMALLEST LOT S1ZE: `T t: MINIMUM FRONTAGE:
PROPOSED SOURCE OF WATER: ~
Individual wclls Ptiblic syslcm ~ Privale Community System
Othcr ( ) - Describc: PROPOSfiD MEANS OF SEWAGE DISPOSAL:
Public sewer (yj Community systcm Septic tank and drainfield
' Double Plumbing ( ) Dry Scwer ( ) -Other ( )
Dcscribc:
UTILITY COMPANIES AND/OR DISTRICTS TO PROVIDE SERVICE TO THIS PROPOSAL:
ElecUicity: i`~`111%~ $ewer. x
Gas: Water, ~Cj~ 'I✓ Phone: f
DO YOU, OR THE OWNER W THE EVENT YOU DO NOT OWN TH1S PROPfiRTY, HAVE AN°Y
PLANS FOR FUTZIRE ADDITIONS, EXPANSIONS OR FURTHER ACTIVITY RELATED TO THIS
PROPOSAL? Yes No IF YES, EXPLAIN:
D. PRELIMINARY SHQRT PLAT Y~YIPRnVE MINT INFQRMATTQN;
LEVEL OF STREET IMPROVEMENTS PROPOSED: Private roads
Public roads ArLcrial roads Tract X roads
DESCRIBE ANY COMBINATION OF ABOVE:
ESTIMATED TIME PERIOD EXPECTED FOR COMPLETE DEVELOPMENT OF THE SUBDIVISION:
! X t "4 . ~ r,' 7.i _t
IS PHASING OF THE FINALIZATI4N OF THE SHORT PLAT PROPOSED? Yes No f- ;
1F YES, SHOW PHASING ON THE PRELIMItVARY SHORT PLAT MAP.
1S DEDICATION OF LAND FOR PUBLIC USE CONT'EMPLATED (Parfcs, schoolst etc.)? Yes O h1o
IF YES, DfiSCRIBE:
* NET DENSITY IS UIriITS OR LOTS PER ACRE MiNUS P}2IYATE AND/OR PUBLIC ROAD AREA.
` • ~ ~ c~, _ :
. A'
: 1'RELZNIINARY SH4RT PLAT APPLICATION • Page 3 of 4
PART ZY
THIS SECTION OF THE APPLTCATTON WILL PROVTDE THE PLANNIhTG DEPAR.TMEIVT STAFF 1~YITH .
WRITI7EN VERIFICATION THAT THE APPLICANT HAS HAD PRELIMINARY CONSULTATION WITH THE
AGENCIES IDENTTFIED. RESULTS OF THE PRELIMINARY CONSUI.TATION SHALL BE IINCORPORATED
IN THE PROPOSAL BEFORE FINAL SUBMITTAL TO THE PLANNING DEPARTMENT.
FIRE MARSHALL/FII2E DTSTRICT A. THIS PR0POSAL IS WITHIN FIRE PROTECTT4N DISTRICT N0.
/
13. ADEQUATE ARRANGEMENTS ~,~;~YB) (HAVE NOT) BEEN NiADE TO MEE7 OUR NEEDS
1N PROViDTNG FOR AN ADEQUATE WATER SYSTEM AND FACILITIES FOR FII2E
PROTECTION PURPOSES.
C. RECOMMENDED FIRE FLOW: S~~ OR UNABLE TO CALCULATE N4VV
BECAUSE USE IS NOT DEFINITTVE; ANDAVILL BE DETERMINED AT BUII,DING PERMIT
APPLICATION TIME, 1
D. REQU TREMENTS. INCLUDE: .b~ 4.
~
.~,nv~~.:,,,~ ~•Cl~l- . .t_.~~ ~u~t~ ~~'-~,i,:~~, :L ~ I I 2
J FIRE DIS'fRICT SIGNATURE/I'ITLE DATE
WATER PU!tVEYOR
A. S ATZSFACTORY ARRANGEMENTS FOR DOMESTTC IVATER AND FIRE FLOW
REQUITZEMENTS (RWVE) (HAVE NOT) BEEN MADE. ,
13 . REQUIREMENTS/COMMFENTS:
i ~
A
WATER DISTRICT SIG~IATUR~r(~'ITL~ DA~E
COUNTY ENGI'EER
A PRELIMINIFIRY DISCUSSION HAS TAKEN PLAC AND GEl~'ERAL REQUTRE T FOR RO.~DS
Ai~TD DRAINAGL HAVE BEEN DISCUSSED WITH HE A,P ~C ~
A. CON►~ENTS: ~
s
SIGNATURE(I'I E DATE
COUNTY UTZLY"I'IES
A PRELIMIINARY DISCUSSIOiN HA5 TAKEN PLACE AND GENERAL REQUIREivIENTS FOR
SUB\hITTAL OF THIS PROpOSAL (I-iAVE) ~VC~I') BEEN S.ATISFIED. THE DESIGNIATED
WATER PURWEYOR FOR THTS SITE IS ~
A. COiv1MENTS:
_ec _
SIGNATURE/TITLE DATE
HEALTH 1?ISTRICT
~
,a PRELIMINARY DISCUSSION I-iAS TAKET)H NERAL REQUI12ENf~:NTS FOR n j~
SUBMITTAL OF THIS PROPOSAL (T~AV VE NOT BEEN SATISF.[ED. A . COMMENTS:
1 . , • A 19:
` $IGNATURE ITLE D4TE ~
5EWER PURVEYOR
A PRELIMINARY DISCUSSION HAS TAKF-N PLACE AND GENERAL RFQUIREr1ENTS FOR THfi
PROVISION OF PUBLIC SEWER ARE UNDEIZSTOOD THE APPLICANT.
~
f~ . COMMENTS: G
i~1 ~
S IG NATUR.E/TITLE D ATE
4 m V'
r r A"
. .
PRELIMuNARY SHORT PLAT APPLZCATION - Page 4 of 4
: ¢:~rl-. ^~.ye• ti ' . ..,.....r.. w,~
PART IXI
~ A SURVEYOR VERIFICATION
~ . -
, ~_s ' . .7 . r
~T, fPI~ uL~~i~ERSIGI~E~ )~,ICENSED LAI~D SU~ZVEYOR, HAVE COMPLETED THE II~FORMATION
~ QUES"I'ED.":LEGAL b • CRIPTION ATl'D PRELIMINA.RY SHORT PLAT HAVE BEEN PREPARED BY ME
:UNDER MX SUPE-V'~ ION IN ACCORDANCE WITH THE REQL3TREMENTS OF THE SPOKANE COUN7
~ G/SU:$DIVISIw ' GCTLATIONS AND THE LAWS OF THE STATE OF WASHINGTON.
r i~` J1V~ . ~ ,fw..~.n~~.~c I/ . 1~ '.C.. ~ f+r--~C DATE:
pRESS: P/!/ ~ 1 PHONE:
, • . _ ,~r , ' -
• , ' ~l ~j
4 1I~•~ L7'~.
PART IV
(SIGNATURE OF PROPEkTY OWNERS OR LE7TER OF AUTf-10R1ZATIOND
I, THE UNUERSIGNED, SWEAR UNDER PENALTY OF PERJURY THAT THE ABOVE RESPONSES ARE
MADE TRUTHFULLY AND TO THE BEST OF MY KNOWLEDGE.
I FURTHER SWEAR THAT I AM TNE OWNER OF RECORD OF THE AREA PROPOSED FOR THE
PREV 10USLY IDEV'I7FIED LAhD USE ACTION, OR, TF NOT TH-E OWNER, ATTACHED HEREWITH IS
. WRITTEN PERMISSION FROM THE O~VNER AUTHORIZINIG MY ACTIONS ON HIS(HER BEHALF.
~ ze ~ i : • ~ • ` ,
SIGNED: DATE:
,
ADDRESS: o tZ PHONE:
m LIP:
~ - t
' fJ o 1
~
SIGNATUI2.E OF PLICANT OR REPRESENTATI DATE
/Xt/
STATE QF WASHINGTON )
} ss:
COUNTY OF SPOKANE )
SIGNED AND SWORN TO/AFFIRMED BEFORE ME ON THIS Lo DAY OF
. /VXQjJd
f-04 I'K , ^7 1992, B Y E 14
7AK YT ~ 1-1 - ),C404
N
~~OAL WE& N Public in and for e State of Washington
Mur~~ J. cx,,,,a,i
Residing al:
My appoinLment expires: ~ ~ "
PART V
(TO BE COMPLETED BY THE PLANNING DEPARTMENT)
DATE SUBMITTED: FILE
i fi
DATE ACCEPTED: BY:
TOTAL FEES: o 0 RECEIPT
-4
y t
, - ~
F ~.i. 1 , :~'T i~tl / ~ ,1. , T~% ~l1 ~ v J^ ,
7%)~~` ~.i~.,~ ~~~~.!~•~•.i~~ ~~1f ~i ri ~ L~.~ ? ;.t~. ~~~.1. ~
~ .
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~ E
PLANNING DEPART~:IENT
. ~ ~
f~0~~~[ COV~~~ COV~IwOVf[
PRELIMINAR'Y SHORT' PI1 AT _A.PP 1,,, CA`rX ON
P AR P z
A. GENER 6L INF,~~t IVATi ON;
~
NAME OF APPLICANT/REPRES:.:vTATIVE: _ ~L'.~ r` / ~l. . ~ ~ / ,tn C= / ~
MAILING ADDRESS:
_ r
CITY: A I.~ S I'.-% i E: ZI r': y- ~ .
PHONE: 15-;v - '•;,1 ~ ' ~ '1~ ~ .~orr,.. .
TF APPLTCANT TS NOT OW",FI:, rN'(:T.c'A~E WItrr'rrEN OWNEi: :1UTHQI:I%AT10.N
FOR APPLICANT TO SE1:1 i~. AS
LEGAL OWNER'S NAME: - P'HO?•; E:
• MAILING ADDRESS: P- U: 7
.
• f
PROJECT/PROPOSAL SITE ARE.. (,icrc; or sq. / • `7' : _
ADJACENT AREA OWNED OR ,_''?,NT::OL:.FI~ (:icres or sq. f[.) _
ASSESSOR PARCEL #S OF PR("EC"f"'RC ?O 'AL. - / ~C ~ ~
ASSESSOR PARCEL #'S OF A::IT-LA OWNED OR CONT'
STREET ADDRESS OF PROi'O:'. .JL
_ . , -
EXISTING ZONE CLASSIFICAT` .-N(5 ) ;DAT._ :ABLISEI EU)
EXISTING USE OF PROPER`i'~'
COMPREHENSIVE PLAN CATr.
SCI-i00L DISTRICT
FIRE DISTRICT ~ WA"I'I: R Pt1i Z':'i:l'Oi:
PROPOSED USE OF PROPLR"I" .
Single family dwellings DL! S):C xc., dwcllings O
Manufactured homes ( ) 3us ;cs;, ( } :;1;i;!sLr1;!l N4ixcd Usc
OLher ( ) - Describe:
LIST PREVIOUS PLA,NNINIG D' ':SF:,:T A.: ~IONS :NVOLV I:N11-; 7; i. '()ROPrRTY.
B. LrCrAL INF0RMAT701:
LOCATION OF PROPOSAL:
SECTION TO',~~'\S1-i;? ...~~~iG~ l,
. ~ ~
NAME OF PUBLIC ROAD(S) P11.04%IP:ti`G
WIDTH OFPROPERTY FRON":
DOES THE PROPOSAL HA\' C}:: Pi t'~'. ::FtTERI,~~I., ( ) YC^: ~ .
NAME(S) OF ARTERIAL RC!•.?~'
LEGAL DESCRIPTION OF PR.C. :T des;;r:pcion \,,,in -ti b;. a,ld Sur vcyor). 1\TC!_ LEGAL DESCRIPTIONFOR LN 13F SU_P-.,DIVIi,)i:1> > :=.LIlv1IiNARY SHO}?"I'
/'0 Q
/ - ~
✓ ~
4•~ I
~
A
~ PRELIMINARY SHORT PLAT APi'~ .ICA"I'1C ~ Page 3 of 4
~
~ i
. 1, \ RT 11
/
~ THIS SECTION OF THE APPLICATION ~•'I~..I., F'R(?'~ : THE PLANNI\C-] Di PA1: '~9ENT STAt'F NVl iill
i~
' tiVRITTEN VERIFICATIONTHATTHE :'LIC''~-: HAD i'RELI~~' C` VSUI.Tr~TION~~~r~fi'~T .
~ AGENCIES IDENTIFIED: RESULTS 0F Rr:.:`.'.' I'.ARY CO\SU1."i°ATlO\ 1~ ALL BE 1\'COR►'OF: ' :
IN THE PROPOSAL BEFC?RE FINAL St. ',fTj'jl-AL PLA\'iNINf;
FII2E IA I.15 l,' llTS'1'R6C:.I.
A. THTS PROPOSAL IS WITHIN FIP .~<"R'O !'EC nISTIZ (C7' NO.
I3 . ADEQUATE ARIZANGEMENI"S t HA V 1, ti' C)T) L3 L• F:ti MA D` :TO N1.ET 0 UR N-t: E:• IN PROVIDING FOR AN ADTL-QU. _ i"~. \•,'A'I'i it .'~'S'('E-N-i :\ND FAr'l;.i"f(i:S ',012 FI12E -
PROTECTION PURPOSES. .
C. RECOMMENDEDFIRE FLOtiV: OK UNAS3'.E TQ :1LCULFITL NOW '
BECAUSE USE IS NOT DEF~'17: i3E UE"'C12~~[Iti E= I") I~i "~',DING PER~tIT ~
APPLICATION TIME.
D . REQUIREMENTS INCLUDE:
FIRE DISTRICT ~ 't• '~~I'U~L~,"~'I7'LI ~ llA'I~E 1Yr1 r'L;~ ~ 1''C}K ~
A. SATISFACTORY ARRANGE NNtF.'~ F;. ,I: I. . ` :ST1C WATFI2 ANI'f FfE::: :E.OtiV `
REQUIREMENTS (HAVF) (H:1N'C: $T) 32-TEti' iM:\JI:.. ~
B. REQUIREMENTS/COMMEINITS:
~
- - - - - - ,
~ WATER DISTRICT ~ ~ : ~ ~ ',T(1~~I=./I'I~':_1~ - L),IV t'E
'E,O",N.L 9-.. oGI,\I_;E'IZ ' -
.
I
APRELIMINARY DISCUSSION f-iAS "~KS`~'pL.;`:F',1NID GLNEi2.~~:. I_-'l:QLTIj<7=,vi FOiZ R0A27= a
AND DRAINAGE HAVE BEEN DISCL'. `_'~D',"~'I.I"'~~~ c- AI' ; IC. '
~
, .
A. COMMENTS:
/
~ ~ ~ ~ • ~
rj; DA"1'E t
Uo ~I~fl.I'1'If•.~ - .
APRELIMINARY DISCUSSION I-iAS '.iE`'TS i=VE:
SUBMITTAL OFTHIS PROPOSAL 'iA N s'E; haI'} BL,-`: `._\'1;S, T1IE vCSIGN
WATER PURVEYOR FOR THIS S1"' ? s
A. COMMENTS: ~
2,
,A PRELIMWARY DISCUSSION HA~ I S FL)r:
SUBMITTAL OF THIS PROPOSAL 13 ` f:' s:;" . , ;LQ. ,
i
A. COMMENTS:
. ;`A Tt;r~~=i 6l T17ATE i
Sa R;'}:YUiz
A PRELIMINARY DISCUSSION I{AS ,:\K: .2. AN13 1 -MENTS FUft '1'};c: •
PROVISION OF PUBLIC SEWER Ai~ 13,'
f1. COMMENTS:
~ ~•(../w'Y V t+~~ . +
_ l, - ' _ n < • .
~ - - ) ~
~~'r;;::DA,I T, .