28276 PE-1751 MIDILOME 1995, 10-18 First Review of Road and Drainage Plans
~
S P C3 k< A. N E G C7 u N T-Y
DIVLSIS]N OF EAlGINE&ATNG ANp RDAT35 ■ A DIVISI[7N ~F TI-iE E'UBLIC Wt]RIC5 DEPARTMENT
William A. rohna, P.E., Acting County Engineer Llenrus 1VT ScaYt, P E, Directar -
october 18, 1995
Kevin McMuikin, P. E.
Sirnpsan Engineers
SL1B]ECT: P1751 - Midilome East 1s# Additian
Ist Revierv
GenClemen:
We have cornpleted a review vf the rrrad and drainage plans fvr this project. Based on a cursory
review of thss submittal, we note that basic information required by the SCRS editivn gvuerning
this project was not included; a list of ffie items reVealed by our cursnry reVievv af this submittal
is attached. These items haVe a significant impack on ihe efficient and timely review of the plans
and calculations fvr this praject.
Since crnly acursvey review was cvnducted, there may be plan ccarnponents, not inciuded on the
attached list, which do nat meet the minirnum requirements of the SCRS. Please ensure that the
applicable sta,ndards are met prinr tn resubmittal. In addition, please prov ide an infarmativn copy
of any utildty plans fvr this prvject.
If you have any questians a~vut this review, please contact Ed Parry at 456-3600. Thank yvu.
Very truly yours,
Wiiliam A. .Tohns, P. E.
Acting Spokane Cvunt}+ Engineer
~
Edward P r., P. E.
,
Plans Review Engineer
encls: P1ans (i set)
Caiculations (1 capy)
Cvmments {2 pages}
SCandard Notes
Sight Distance Easement Zledicatien
cc. project file revseivm~ 1~rWsaihfty Mly) • sgokarie, wA 99260-0170 •{504} 456-3600 FAx- (509) 324-3478 'FDD {509} 324-3166
' • 1
REVIEW COMMENTS Page 2 of 2
18 October 95
PROJECT # P175~ REVIEW # 1
11. Several basins will need grading plans to ensure that the runoff will be directed to the drywells (e.g.,
Basins H, O, F, and G,)
12. The drainage report does not appear to address the impacts of increased or uncontrolled runoff from
this site directed onto the adjacent properties. Calculations should demonstrate whether or not runoff onto
the adjacent parcel to the west is increased (rate or volume); runoff from stub roads should be treated in
a temporary 208 swale. If the parcel to the south is controlled by the sponsor for this project, a temporary
blanket easement, rather than a detailed metes & bounds description, could be granted for the excess
runoff and for the temporary swales. Temporary swales are worded so that they will automatically vacate
when the underlying parcel is platted - forms for this are available at the County
13. Basin H: Rational method must be used for areas s 10 acres
14. The pond for the offsite flow is not connected to the Basin H disposal facilities; this area is an
independent basin. The retention pond concept is not a standard method described in the GSM, and a
design deviation request will be needed. Typical conditions of approval for this concept would include:
volume equal to at least twice the 100-year storm event, plus 1' of freeboard; an identified and established
overflow route, certified inspection reports and Record Drawings; and maintenance by an entity other than
Spokane County, among others. If this is intended as a permanent facility, then drywell disposal might
be considered as an option, if the soils are suitable.
The attached Standard Notes should be incorporated into the plans
A cover sheet with plan sheet index, vicinity map, overall road layout, etc., would be helpful (but is not
mandatory
' . ~
5tandard Plan Notes far T]eWelnaer Flan Submittals
1} All wark and materials shall be in canfarmance tivith the "SPOKANE COUNTY STANDARDS FC}R
RQAD ANT] SEWER CQNSTRUCTION 1942", and as arnended.
2} Iocations of existing utilities shawn in fihe plans are approximate. Tne Contractor shall be
respons'rble €or Iacating all undergraund utilities. Any cvnflicting utilities shall he relocated prior
tv cnnstruction mf road and tlralnage facilities.
3) The Contractor is required ta have a complete seC of the appruved raad and drainage plans on the
job site wheneVer eonstruction is in progress.
4} If the Contractor cJiscovers any disGrepancies between the g1ans and existing conditions enCountered,
the Contractor shall immediately natify the Z3esign Engineer and the Spokane Caunty Engineer's
Office.
5} F@I CDTI$truCt1DI1 OF dTyWeIlS' insfiala f[lter fabric (Amocm 4545 or approved equivalent) between the
drywell barrel and the washed drainrock, and hetween the washed drainrock and the native scails.
b) PriQr ta site c4r►struction, the Contractor is resgonsible for locating undergraund utilities. Cali che
underground utiIity lvcativn seruice at 456-8000 befare you dig.
*WQ%_N teS e I O
7} For any curb grades less than 0.8% (4,008 ftlft), a Washington State-licensed Prafessional Land
Surveyvr shall verify that the curb farms are at the grades noted on the approved plans, priar to
placement af curh material. The Contractor is respansible for arranging and coordinating wark
with the Professianal Land SurVeyar.
Standard Erosion Control Notes
These i2otes are to 6e ineluded in the ptan set when erosion contral facilities are required and incorporated
intca the plans.
l) An Erosionl5edimentation CantrQl (ESC) plan is required for thls prajeGt. Implementativn of the
ESC plan, and constructian, maintenance, and upgrading of the ESC facilities are the re5ponsibility
of the I3eVeloper until al1 canstruction is c[rmpleted and aecepted by Spokane County, flr until
Vegetation is established thraughout the site, and accepted hy Spalcane Caunty, whiehever is later.
2} Agpraval of the ESC plan daes not constitute approval af any af the proposed road, starrra drainage,
grading ar utility design elements shown on the ESC plan
3) The erasionlsedimentation contro] measures shown are the minirazum requirements for the anticipated
site conditiQns. The Contractor shall inspect and rnaintain these ESG measures daily, and shall
maintain and upgrade xhese measures as necessary to prevenc sedirnent-laden water from either
flowing flff the site, or into newlexistii3g storm drainage facilities, such as drywells, culverts, or
graVel galleries.
4} The ContractvrlDeveloper is responsible for installing Rock Construction Entaies at any and all
laeations used to enter ar exit the prnject site.
PUBzic Raans
sIGsT ni~TANC$ EAssMENr
Sight distance easements in Lot(s) . and , Block
, as glatted and shown hereon, are hereby granted to the public
for the sale puxpose af ailawing a clear view sighC distance
triangle over and acrass the easernents.The owners v£ saad lats
agree not to vbstrract or in any manner allow any obstacle to blae)e
thz,s clear view triangle between a height of three [3] feet and a
height of seven (7) feet above the road pavement elevation adj acent
to said lots.
Spokane Ccaunty and its authari,zed agents are hereby granted the
right of ingress arrd egress ta, aver and f'rom said easerrlents for
the purpose of inspection and emergency maintenance af the sight
distance area. Spakane Caunty does nat assume any responsibility to
inspect or maintain the sight distance easements, nar daes the
Caunty accept any Tiability for any failure by the lat awners to
graperly maintain such areas.
If tihe progerty owner fails t❑ maintain the sight distance area in
reasana.ble cvnfvrmmance with the apprvved plans vn file in the
Office ❑f the 5pokane County Engineer, a notice of such failure may
be given to Che property awner. If nat corrected within the perigd
indicated an the nvtice, Spokane County has the riQht to cvrrect
the maintersance fai.lure or have it corrected at the sa1 e expense of
the praperty owner.
pubrdsd. eas jMar95
r I A7~~~ ~~CKLIST
PFLC?]ECT #P` 151 REVFEW # ~ REVIEWER: PM" UATE: 17 [Jctuber 1995
.r
PRd]ECT: MtDIomE GW Lqr ~M ,
PROJECT SF(3NSC1R: WIA f,►~-~~~ TEL #
PROJECT ENGINEER: -61~ 64V,(A _ "k TEL #
(Aoad & Drainage Plans)
PROJECT S[]RVEYC]R: TEL #
(Plat)
ADAWaSTRATIVE REQi]DiEMENTS
ves Zr. E7 NIA E) 1. The $ 100.00 fee and Agreement to Pay Fees for ptac revievr have beem accepted by Spokane C4unty fvr this
submittal.
va El NO fl N/n ~2. The Review Fee Account is current (no invoices over 3[} days autstauuding).
rz~ ~N. E) N,a 0 3. I haue noted the plans in, plans out dates on the pink sheet in the file.
ti=es El no El Nin e 4. Tf t.his is a mobile hame park project, were plans rauted through Planning?
v~s El N. ❑ xrA D 5. The fi1e coiitaiiis a Spokane County Engineers Section map, Assessars's map and aerial phota.
ves Q No El N/n El 6. Field review made. If yes, complete attached foriti "Field Reaiew Regort".
PLAN REVIEW REQUIIdEiVlENTS
ve~ Vr. 0 rrrn ~ 1. 2 copies af the plans and a bound drasiiage report were submitted.
Y. 46 E) N/n 0 2. The p1ans are on 24" x 36" sheets.
bles 5(Na Ll NIA ❑ 3. The plans and calcuZations are stamped. Plans niusc be marked "Preliminary" vr "Nat fvr Consrructioii" if
rtiey are uot the final appraVed plans. FirW plans tnust be siguerl azid dated b}+ tlie responsihle Washington
State Professinnal Engrneer.
4 TCie developer has signed and agproved the Final SubnuCta[ uf the road and d.raxnage plans.
~5. The 5tanctard Plan N[ates have been included an the plans.
v~ 36ri. ❑ K,n El 6. Is the project l4caced in the Aquifer 5ensiciVe Area?
Yes 0No ❑rirA V 7. List any design deviatian requests and tlieir status:
res ❑N. ❑ NIA El 8. L.ocate the Findings d Order for the project and list any nusonditiQa~:
m l~ ~ ~ ~ ~a ~ 'Iw/
Ar I~~ 'Awzka" ImAr `
vu El No 0 xrn 0 9. Stteec narnes are consistent with PiaC.
F aOD DNES
❑ ❑ ❑ ~
v~~ ~ ra~a 1. Dpes the entire plat he outside af t~O-year F1oQr~ Plain Area.
Y. El No El Ni,. 0 2. i?aes the ent[re plat lie outside v£ Zone "B" of the desTgna#ec1 Fload Plain Area?
vo El ro El x/a 1:1 3. Is the max. sfreet potjding in auiy part pf aZone "B" less tlaan 1'7
v. El No ❑ r,rA El 4 Daes tlie plat eantain appropriate language limiting the Ivwerne~st opening in a structure located in a eone
ta npt less than 1' abave the lawest road elevatiom?
ves ❑No 0 MA El 5. Is tlie entire project located oucside of ati identified Flopd Plain Area?
Ycs E] no QN/n El 6. Is rue entise prOject lacateti Uutside of an identified 5tormwaeer Management Problem Area?
cidistv4 0llan95 I
, . RC]AD PLANS
r. List any roads diat must be designed and constructed on the project.
~ Ri3AL5 NAME I RC]A17 h1AME I RCI~#T~J N~~ I ROAD NAh4E ~ ROA1] NAMFi H[ 1A1? N"L
~~d X-k
Rf]AI] CE.A55QFICt1T1(7N PPA /,%at
'CRAFFIC INDE3f
TERRAIN
~~VE~ ~~DTH 4d I k 6
R/W WIpII I
~PF-ICD
nES[cH sPErID ~T.► I 3D I
mINuWuM cRADE
MnximuM cxADE
5`IY3PPING 5[GHT [7I5TAPiCL
~~ORZ CURVE I I~~ N~~~ k I
a-rPL oF cvxB xF:QvnEn
MIN ASPHALT SECTICIN ~ ~ ~ ox e
MIN CRAVLL SECTIQN
In
I If~~~~ I 1
(t)TRAt,FTC nvnEx: Majar Arterial 7, 5ecvndary Arierial 6; Collector ,4rtenal 5; Local gccessiResideritial 5; Private 4.
El NO ❑nvJ~ 2. Planning couditions require suhmissian aF a landscape plan. (NC3TE: Ldsually associated wilth gLI17's).
Va [ Ko N)A 9- 3. 1 have checkeci the lauidscape plan agaizst the road and storm drainage design. lf ttiere are any conflicts, list
tiem iii sgace provicied, or iiate that no conflicrs were faund.
Yes 11 r.o 0 nria El 4. The feall4wing rvad plans have a bearing on dae desigm of roads for this project and a co,py is in the file:
ve6 d Np El NFn El S. Veatical cur►+es meet stoppisig sight distance reyubrements.
w, VN. El ,n 1-1 G. A,n "R" Value Test is required for this pmject. .
vza 1rN,n E3 ta. For this prvject, for each sail group caiied out an "R" Vaiue Test has laeen submitted.
~ Mn 1-1 yr.,;2 6b. The pavemenc sectian is adequate for tlie "R" Value Test arzd required traffic index.
~•h ~~o El N/w El 7. Is the bench niark called out otf the plans?
Yes Rfrr- 0 HIn 0 8. Are stationing equations shawn?
Y. GdHo 0 NrA 0 9. Is stationing ccarrect (south ta nsarth, west to east, reading left to right on the plan)?
~Y. ~ o p 510, Are existin,~ utillties sh~awn on the pl~ (or ~ infortuation copy of the utility plans subr~~ittei)?
es nrQ 1 i Are prrapased utilities shown on the plans (or an infarmation copy of the ut'rlsty plans submitted)?
v~~ ~~~en ~ 12. The prvject plan naIIUe niatches the plat name.
cklsstv4 817an45 2
• El J3NiA E3 13. S'I`REET WmENIlNC1INTER5ECTI[)N WITH EXT5TTNG CU[]NT-Y R[]AD
res 4, E3 K,n 1-1 13a. Are curb design sheets prauidetl for wideving of existing streets?
v~ 0 No ~ rrrn E3 13b. Daes the curb design confarni ro Sgokaue County Standards of sectian cross slage (Between 2% and 4.5
v. VZN. ~NFA ~ 13c. Ts khere a street cross section shawn for wiflening existing streets?
ti~. 1:1 rrra 0 13d. Daes the prvposed new vvidth match the width requared in the ;Findings anri C3rdeO 96t(1K fL
rn"0 No H~A ❑ 13 The crossasectiori shows: Exong R1W, Propased RIW, any reqd Puture Setaside, al]d edge oF eX15C111g
~ attd propQSed pavenient.
tp ~ I
tio ~ xr,. lOD' (tnin.) pavement taper intca project is shown.
yaW,X,A El (I) 1'here is adequate RIW for the raper to extend from the gew paving width to existiug par+ement.
YX N. ❑ H. ❑ (2) There is inadequate RfW for the tape ta ext iid rvm ~l~ r~ rv paviid!h to exis ng gavement; taper
eztenc~s from existing paving to RIW. F~ ; ~ ° pwzq
rCS 0 No Xin0 13g. i.:engdi of pa~+emeni ta er. out o~f pr~aject meets AASHTO re€~uiremetits• V1~52-bfl for design speecis 5 40
n~ph. esi~~ s~~ds >,&4a4mb, ar _ feet has been apgraVed by 5pokane Gounty Traffic
Eugineer. L71win lo RRb f0d`ftwobo
13h. TransitiQn from end of curb cv existing paviiig is shown (curb shvuFd nose down in 12"). '
13i.Are the curb grades, for any required curbs, above the coutity fniuimum nf 0.8 V
~EINIA ❑ 13j. The curb type meets Spakanc County 51.andard.s.
Yes El 1Vu ❑ NIA E1 14. NEw STREETS
res ❑ r~ E1NiA ❑ 14a. Does the progosed aligmnenc mcet Spnkane County 5tanriards?
r~ 9n, EINIn ❑ ( 1) Centeriiae slapes are within S[akane County 5tandards.
r~~ ~~eEr. 1-1 [2 ertical vc, e kno aru%Irfor interseetions aiid stvpping sight distance.
n n E] (3) Horixnntal ctuve radius meets Spokane Councy standards.
Yu oE] ,iti E] 14b 'ihe plans show the typical cross sec#i4n for streers,
vo u N. QN~AE] 14c. L?nes the praposed street width match the Findings and arder?
r~ El wA El 14d. 'ne typical road cross-section shnws: Existing RIW, Proppsed RIW, any applicahle Future 5etaside, edge
of new pavement and any dtlier required impro•renients.
vo 14'a 0 n,A Q 1.4e. The typical road sectivn flu the plans shows the cross slope and i# is witlvn the 2% co 4.5 % stagdud.
Yu 0 r+a ❑ r.In d (1) The Crrass Slvpe "rs carre.ct vvhen checked an dhe profile drawirigs
res 66NOEINrn E] 14f. Curb tyge: Ts shvwn and is the praper type for the road classification.
Yes wNo [J;v/A C] (1) Meets Sp0'kane Caunty Raad 5tatsdarts for cuebs ►,vfthin the public fight-af-way.
v" U(I 0 rvrn Q (2) Consistent with rhe curb type iii the general au'ea
vrs EgNa ❑ r.rn E] 14g. Are the curb grades above the cowity minimum af 0.8 V
Y" 0Ns 0NjAv 15. Has ttie Fire District ap,pror+ed all propcased private road turnarounds that are substandard accarding co our
Spokazie Caunty Road 5taiidards? (A nne lot stub less than I Si]' on a puhlic road is allowed).
cklistv4.9i7an95 3
' res ~ 1 6 SIGNAGE PLAN
~ElNO.16a. 5top signs are showu for all street5 which intersect an arterial (Check with County Traffic Engiiieer if r,here
is a questioja).
C"[:]NoW-,n 16b. Street name sigus are shcawn at all ititersecting streets.
,ro '0 NIo 1:1 nIn E] 16c. is tliere a need far harriers at tEhe end of dead end streets?
ve~ LING 11 NrA E] lfiti. Is there a need for other special signing7 (Check with the County Trafdic Engiaieer).
Tcs EINO❑ 1VIA E] 17. CURB RETURNS
ve,, 14% E_-1 rrrAD 17a. A,re SCR, MCR, and BCR, s#ationslelevations oii cue6 returns sh4wu in the plan view?
res ❑ N. ❑ VJAD 17b. Are the curb retuxu eleuatioiis cvrcect?
Y. 0 N. ❑~OA E] 17u. Is there positive drainage from the road intersectimn tra the MCR? If tznt, is design safe according ta
AA5HTp staiidards?
rp EOvo C] Nin 0 17d. Curb returu rad'nus meets the Spokane Coun¢y Standard minimum. (to back of curb for rolledlwedge eurbs,
to Face for vertical curb face types)?
Y. ❑ Na 0.wA ll 17e. BCR, 1VTCR, and ECR elevations are set to a11ow draiivage frQm the ceuterline to the curbline?
v" El Na El niACl 17f. The cross slope taetwee2i the intersection auid cuabline meets AASHTCI reqiairements: (ref. AASHTD) 10%
(flat terzain); 8~'0 (rolling terraiia); 6% (mounCainous teraain).
Y. Ll N. 0 ,v/A0 1$. CUl.^DE-SACS
~~O El NIn 11 18a. 1'he cud-de-sac grades (tap of curb) nzeet county cul-3e-sac stanriards (1 ~'o nun.)
V. E] N. DvJA Q 1$b T'he cul-de-sac curb is showii in profrle.
Y. IWN. ❑NIA ❑ 18c. The cul-de-sac radius rneet Spokane Couniy Standards.
Y. V NqE] NrAE3 18d. The cenfer oF cul-de-sac StatiQn is shawn.
v~ ON. 0 wn 0 19, INTE~ECTIC1N5
Yes ❑N9 ❑ NIA 0 19a. Tntersecrions meet AA5HT[] sight dist.ance requirenients far concrQlIed and uncor_itrolled ijitersectioiis,
Y. EIN.El NlA D 19b. [ntersectiQn seaaraiion is greater than or equal to 154' on Imal access streets and 300' on arterials.
Y. ~ N. ~ KiA ❑19~:. Da the inters~tiotis in~t the la~iding requiremen~? ~~~W~~-'~
rC's LINo d Kin ❑ 19b. Wheelchair rdnips are provided a[ intersectians widi sidewalks.
v. 1:1 x. ❑ N/A0 19c. The initersectian horiaontal sight distance analysis shows Chat sight triangle enccoachment on griVate prvperty
is 2' oc less far contralled iiitersections.
v~ El~o 1:1v,A E] 20, is ehere a need far slnpe easements?
ck➢istv4.0lJan95 4
' Va 0 n, 0 x, 0 DRATNAGE PLANS
vu 11 N, E-] xin C] 1. Has a plat map been submitted which shows lat dimeusions, street widlhs, etc.?
Yo E) N. NIA 0 L. BASAd■ 1►'er,. r
v. ~N. ❑ xin ~ 2a. Nvrth arrow and scale is shawn.
ru Kg 0 KIn 11 2b. 5ubbasins are labeled and corrclaied with calculatians.
Yft d No d hIn E] 2c. Was a map wzth contauzs/spot elevativns su6Yni4ted lo properly determizie drainage basins?
rn El N. ~~IAE] Zd. Wcre the rQUtes used to determine time of concentration shown?
rm El Na E] NIn 13 2e. Wcre all ewking drauzage caurses shawn?
v" 11 N. 0 Nrn E] 2f. Were al] the proposed drairage caurses shown?
rd ❑ rrO❑;vrn E] 3, Were Hyclralagic calculations suhmitted for each hasin? (Ratianal Famnula af area 5 10 acres, 5C5 TR-55 Lf area
7 10 aeres).
r,A 0 rvO El xiA❑ 3a Permission was given to use SG5 TR-55 for basins 5 10 acras.
Y" El NOdNrn 0 3b. Basin includes offsite and onsrte areas [ogether (use 50 year analysis).
rp 11 N. 11 x,n El 3c. Basin is a11 onsite (use I(} year storm).
rao Na D N1A D 3d. Runrrff rate for basin bs con7pared Ca impeTUiuus road area runofF rate. The Iarger rate Goniro15 de5ign.
CONVEY ANCE[DISPC)5AL
rd Ll Hp 11 Nfn 0 4. Pspesl Culveres - If, yes, cvmplete checklist section for culverts anc3 pipe-systems.
v- Ll N. El nun Q 5. I]ttches are identifieti in plans ant6 details provided. And have a minimum grade of O.5°rr~' .
vp E]No E]NIn 11 fi. ,4re there any cnnflicts between the propvseci septic taNc effluent drainage fields and any ditehes an the draznage
plan7
r-Orra OHIA D 7. Gufter tlow depth is less than gutter heighe and allaws for 6' nan wetted area of each side of centerline for laca 6
access ar collectar raads.
vu 0 rr. 0 nIA ❑ 8. L,acations where water is intended en flnw through an in9et or curb cut are at the law point in r+ertical curve.
v~❑ rra 11 ;aIw E] 9. Backwater - Analysis for any prpe andior di[ches was submxtted.
r_ Ll rra ON,n El 10. Headwater - Calculations for culverLq were submitted for reviewa.
rn ❑ N. EJ Vrw EJ 11. Curb drQpAcurh inlets are used in ttse conveyance and plan and calculaticrrss for flvw capacity hade heen suhnlitted.
r.E] Na ❑ YIA Q 12. Is Erosian proteckian required and haVe calculatlons heen submitted for review.
rtrCl N.DYIAEl 13. Sails cype is "gre-appro►+ecl" (Garrison, etc.,) for rirywells wsthaut percnlation tes[s.
vp El x9 11 vrA ❑ 74, poes the deainage report identify the SCS soil groups for the praject area and for the proposed roads to be hualt
in tYie project area?
r.d Ho D vra E) 15. The drainaga design niaintains existing flowr patterns in natucal watercourses.
El Na ❑Ni,a D 16. The drasnage design maintains exssting sheet flow patterns withaue concentrating tlarus.
vm ❑ N. 0 Nin D 17. The drainage concept is compakible wnth Tkie Guide3iiie for Storrnwater Manageinent.
vm E]no EIxIn ❑ 18. Tt3e difFerenc,e between present and future flows is retained an r.he site.
vaE] NQ 1:1 Y1A 0 19 A detentian basin eoncept is praposed for scarmwater di spasal. If, yes, use separate checklist for detentian pvnds.
W'V LVEi1T47 L71111 rlCE S1 STE1Y1.~.7
r~ ~ Na ~ n,n 0 1. The rnad culverts are at the lvw pvints aF strearn flaw.
r" ~ no Q xin 0 2. The LlCadWaYei WaS CBlCilIBtEd F(]r CL➢lVCi[ eEl[f3TICe5 alld 15 lkC1d8Y 2 dlc'IIYI@tBPS fflT ClifVePCS llIT.dET 18" in diameter
and 1.5 diameters for culaerts greater than
vn 0 Na 0Nrn 0 3. 'Fhere is a minimum vti 12" af caver for a1l culverts and starrn sewer ptpes
ra ❑ h9 O,A 0 4. The designer has demtanstrated that the praptrsed pipe ss suitahle for cover less [han 2.5' {PVC}, 1.5' (CMP),
i 1'(FtCP) (H❑FElADS} Qr the engineer has provided krench deeails for upgraded pipe bec9dmg for these areas.
rftD n.D Yrw ❑ 5. The rturumum velocicy within ttse plpe sys[em is 4feet per second at design flow in a backwater candieion.
(Note: The County Engineer may permit lower velacicies).
v- 0 N. ❑ nen E] 6. "Me back►vater calculahnns show a mirumum freet+aard of 0.75 feet for each e.atch basLn or manhcsle,
ro Li xo Li vin 0 7. `I'he minimum culvert and pipe slvpe is 0.5% and a[1 piges meet vr exceed this s[andartl.
Yft ❑ N. Lj nIA L] 8. All angle pcrinu in the s[arm sewer system have suitable access such as a manYsole for clearung.
vu 0 tio 11 nIn ❑ 9. A[ locations where trvo differen[ pipe sixes entes the same rnanhole the 0.8 diameter points o f each p i p e are ae
the same eleva¢inn. {IVvte: Exception a3lvwed for drvp manhnles}.
vftD Ho 0 KIn ❑ 14. Ts there any dvwrisixing raf pipes in a syskerns aF pipes rhat are 18" in diartseeer and smaller.
cklistu4 DIIap95 5
11. There is a downsiring of pipes in rha amsaunt of 3" for a rninunum of 140 feet in a pipe system that cvntains grpes
that aver 18" in diamefer.
r~ 0 w. d ti,n/ 12 All pipes rn the gipe system are 12" and larger as per 5pnkane Craunty Standards; 10" pige rhat is allowed ~'vr
connectsvn of in9ets to catch basxns or drywells, if the 6engttt does noe exceed ~ L and the velaciry is at leas~
4 fps)-
k•m E] N6 E] 13. Al1 stvrrn sewer pipes are 1'acated a mirumum of S feee from a rear ar side property line and haue adequate
easements for maintenance.
rn El NaCl Nrw E] 14. Inlats on the same slape are lacated sa that the maximum width of spread for the gutter t]aw+ does not exmed 6'
(from curb Face far Type "A" ar "B", from back of curb for Type "It") for ma,or arterials; 12' for collectvr
sireem ansi local aceess roads.
rd E1w* C1N~n~ 15. "The plans praf~les show a11 cuL^vert prpe cypes, stations, affsets, leng~, and inVerts.
vm ❑ wo ~ n~ 16. Pipe materials meet caunty standards for sysCerns that lie witlun cnuncy RQW. (Nvte: The cype of pipe i=1 private
systems rnay be as specified by the design engsneer).
v~C] 17. The cuiverts shvwn are pr6perfy statigned from centerline staeirrrung.
<~e--Li u 18. ]Joes the drainage system cvniguratiun avoid cvnflicts with unrlerground utclities?A"
r~0 xo ~ Nrw 19. Is there a need fnr energy dissrpation vn any of the culverc autfiets shown an the plans?
xu ~'0 rr, ~ H~e ~ 2(]. Ls there a need far ri~a rap ar~rund the culvert autlet at any of the eulverts ~ progvsed on the drainage plans.
y~'d rra ~ No 21. The rip rap that is shown For the dratnage plans is adeyuate fnr the eulverrs where ervsion is a concern and rhe
engineer kaas submitted acceptahle rip rap design calculatrans.
vu ❑ rrg ❑ Nrn k 22. Fipe anchars are shawn For pipe grades greatec than 155.
ra E] no ~ NIa L] 23. There are nv instances where water is krapped agaLnst a fill with na culvert shown.
rw 11 n~o 11 N/n ll 24. Prafiles and crQSS sectaons are shown 4n the p3ans for all propased channeZs and ditches.
r~ E] No QNiAE] ?S. I]itches with eroding veloeatses have a prcrper linislg for eensron protection.
rd 11 no E] N,a E] 26. Waker will prQperDy flaw frarn an existing or propased di[ch onka the paVemeat as praposed on the dramage
glans,
rft El ho 11 rrE,► E] 27. Where the diteh profile passes from cuc to fill the flow has been pruperly dispnsed of
INLETS
Y. 0;~o0 Nin El 1. The inlets shawn are wittun [he streats f1ow.
Y. 0 ~-4a ❑ nrA❑ I. inlets are shawn on the law side of a raad or ac the low point of a vertical curve
vmEl No 0 NI,, K 3. Curb type rnetal enleTS, if proposed, are shown ac sags and are pruperly sixed.
,r~ ❑ nO❑ NI,. g'-L 3a. Pericneter calculatiun does nvt include thc side of the grate against the curb face (all grate types).
r-ONaE] NrX 3b. Perimeter rs divid'ed hy 2for calculations where no curb operung (Tyge 1 see standard L7R'dVG B-10) ss provided.
rm Lj No E] Niwe 3c. Are-a = clear area = 2for Type 1 gra[es)
K~ 0 Va ❑ 4. Ttsere are na vertical curves that prnduce areas vF very flat grades far extended areas which could pase a prohlem
with pvjidsng water irm traffic lanes.
e, ~ xa 5. 'The centerlinc ruad s[ations, offsets, an ►+e eleaa.+ns Fmr atl in➢ets are shown tn the plan uiews.
rd Na ❑ rriAX 5. Grate type is shava+n on the pPan and is a~ceptahle (Spokane Countp Standard irilets or V4'SDOT standard mnlets
in county ROVV, nn private property other mlet type rnay be s,pecified) (Type 1: D-2; Type 2: D-4 in ald 1981
standards ar type 1, sheet B-10;type 2, sheet B-11 for 1995 standacds).
vo E3 No Dwn Rr 7. A der.ail drawing of the gratclcurb imtallation is shawn ctn the plans and includes a mirurnurai k" depression and
transiraans as per counCy standards far grates ehac are located witbili county RQ'a4', or referemaed eo SCRS s[d.
detai] L]-R in 1581 standards or sheet B-18 in 1195 standards.
E] NI,a d 8. A cunc cut detail is shovun an the plans with [he new county back drop ccsnerete apron with tiransiuans and a 1"
depressivn fnr curb cuGs tnside caunxy ROW, ar reFerenced to 5CT{S std. detail S-8 of tYae 1995 stat7dard drawings
va F-Iho EIxIn 9. 'The pkaras staows accep[ahle curb cut detatls and grate detasls for inscallations whtch 1'se wittlin priYate road
easements. (For plans Chat are suhject tsa 5pokane Courscp Reaiew).
ro ~ na 0 Nfn4PT 10 IF inlets are in a graVel rvad or a ciirt ditch a 6' x 6' A C apran as shawn araund [tae inlet.
re 0 N. P 11. Catch basits or special manliole dctails are shnwn +ar a standard drawing ts referericed.
a
(f!t ~411 Critical ]aw points in the dsair~a em have heen pra~vided wi[h owert~aru easemenLs. ~here it is ~SnssihPe}.
ege 2-1 a~F C"iSM A ~
~
ckLstv4 01]an95 6
. . 208 $WALE SYSTEM5 e4wiNtw fw"
r" El xo EIrrIn Cl 1. ls the swale located outside a fuCUre set astde area? See Findings and Clyder for where setasides are reyuired.
Y. 13 N. 0 w/n 0 The swale hottam and sides have sod or grass turf speeified.
r~~rrb E] Y. ❑ 3. Swale side slnpes tlo noe exceed a 3: 1 s'sde siope. (A 2:1 slde slape is allvwed if swaie depth is less than 12" deep.
Should oNy be allcswed where cvrstrained hy obstacles)
vaLi x~ EINIn E] 4. Tf depth of water from hottom to tirywell rirn is be[ween 6 and 8 inches, soil nuxture has been specified wtlich
meets 5pakane County Gutdeli e ~
r~Q r~a~Ni,~ ~ 5. Drywell is: i.n.azed wmttuqe c~ur inel, or ~a ~e .,e access~~ro~ute~dsernent are prnviQed.
r~no El . 0 6. Drywell statiorung as staggered frorn the inlet hy at 1easC 4'.
Y-V VN. NIA ~ 7. Mulraple dr~vells are ]ocated mare than 30' (center-cent,er) apart.
E) n,n El 8. Soi1 rype is appropriate far drywells (perc rate ? 72"Ihr), Tf noe:
vW 1:1 ng ❑ Kin [1 8a. Clverflow fram a swale at a lrrw pvins ws13 be directed away frorn building pads hy an identsfied easement a►+er
unprQVed grnund or an existing naturaf drainage channel cavered by an easenient where an overflorv is required.
<E]no~Nin9. I]rywell 3acatian does not cvnflict with undergrcrund utifities.PC"'`A LOfi, P-X,
r- ❑ N. ❑ NdA 0 10. Drywell type is specified.
11 El 11. I]rywell prate type is specified ('T'YPe 3-std. detail D-'1 Far 1981 standards or Cyge 4, sheet B-] 5 of 1995
sCandards.) ~
"
I~,.A 12. ❑ ~ell grate cleva~vn is: A rnirumum of f~,4'`} e low ihe narmal flrsw line ae ehe cur'~ inle[ and is betwe~
an8" ak~nve che swa3e flaar elevativn,
~ ~ 13. Dpes the nats: "1rYrap [he drywell with a filter fabric {Amoco 4545 0r equivalent}" appear an the plans?
14. Swale flo~ar elevac'san is:
Ym ~ N~Lntn Q 14a. 5hawn an the dra►vingA
rn ❑,oVnra 0 14b. Bekween b" aad helow the drywell grata elevation.
r~ ❑,Ne 0 niAn 14c. At least 6" be9ow the nvrmal gutter flvw]ine at the curb inlee fvr swale withvut a drywe11.
K~ Q h,n E] 14d. At least 10" belvw the normal gucter flvwline at the eurb mlet fur swale with a drywell.
15. Swale flnnr.
Y. V`No EIH,AE] r 5a. I)irnensiaiis are shovvn "IGC~w
rd 11 rrs E] Hfn E] 15b. The area macches nr is larger than the required area frvm the 208 calcuiatian far znipervivus areas.
16. Fasements for the 208;
va El x0 11 WA❑ 16a. Are shourn on the draim°age plans.
vu cl rro E] rrrq CI 16b. Are shuwn Qn the subdi►+ision plat and maech the drainage plans.
vu Q n~ 11 NiA❑ 16c Are of adequate sixe to contain at least d" Freeboard abave the max. rvater surface eievatian for the design s[orm.
❑El El 16d. Are [ied to the Ivt eorners.
.N. N,n ❑ 17. The stde crf the swale that is the furthest distance fram the sireei shvuld have a tn,p of swale elevacion that is 0.2'
00 hi,gher thxn the lowesc tap of curb eledatian alvng the swale.
t•w 0 xo ❑ hIn E] 18, The nvrmal flow line at the curb uilec as at ar above the max. water surface elevanon for the design starm or the
maac water surface will not pand wacer mvre than 12' m resydencial streets or 6' in arterials above callectar
classiiCat4 an.
Yss F-I No ❑ N1R O 21- 2V8 .7WALES
r~ El no 11 xIn ❑ 21a. 208 swale floar area, volume requirements sized praperly to treat impervious surface areas.
r" ❑ Np 0 nrn E] 21 b. 208 swa1e volunie grvnitletl in accordance with "Guidelines for 5torrnwater Management".
EASEI'VTENTS
Y. p 13 1. Adequate drainage easements are shown for maintenance af drainage datches or pipe systerns.
v c2. There are easernents propased or exiseing fcar ratura4 channels whieh cross the praper[y, and rhey are adeqs~te
ta~ pass the SO ysar stnrm plus a 30 % added depth af flaw far a safery factvr.
r~ ❑NQ 11 NIA E] 3. A puhlic drauiage easemeni was provided where public street drainage was diuerted vnta priuate praperty.
r. C3 rr5 E] n,n ❑ 4. 'Fhe perpetual maintenance vf pravata systems has praperly been prodicAed fQr.
Y. El N. 11 NIA ll 5. The maintenanr.e oF drainage systems wiihin Spukane County RDW has heen properly pcavided Far.
r~ 0 rro EInIn LI 6. a3ppraprta[e drainage language has been provided hy the reviewing emgineer eo the surveyvr amdlor engineer w+hv
is in►+alved with the platrang work.
r n,n E1 7. Are pre-existing drainage easement.s on this garcel affected by dus pSat?
Kfl~„n 8. Overflow easernents are gravided fcorn swsaleslpands loca[ed in low pvints where it is passible.
cklsstv4 0i7an95 7
' ,~o El NO d xZr [JNDER(;R[]T,7ND GRAYEL GAGLERIES CHECTCLIST
Is ttae site suitable far undergouxid gravel galleries based an the site screenizig criteria cnntained in tlie draft
standartis for gravel galleries Tf no, an approvei design deviatian is required before fut+ue re►+iew.
Yes EIN00,rn 1, .3 void ratio for gravel fnee space Volume is use[l or test infomiation is proWided ta justify ratio useci.
Y. LJ N. ❑ K/n 2. Pcrc rate fram field test is used to deWelop outflow rate
v~A El N. d nrln 3. 10-yr event vptume is concained et7tirely undergrouiid
rEA Ll N. Orv,. 11 4. 100-yr event v4lume is contaitied by a combinacion of underground storage and above graund storage up to
8" depih
3'm 0 Na EIrun 5. Soil mixture is specified far water depth itt pattcl exceetling 8"
v" ~ xb ~ rain 5. Entire gallery is wrapped in fiIter fabric
~No ❑ Nr 7. An adequate freebaard is gr4vicled in atty abQve ground starage pand.
v~ E14a 0xrn ~ DETG' NTIoW FQMCI
Yo Q u9 0 NIn C] 1. Releases to a downstreawn changel or p'spe system that is capable of properly couveying the propnsed flows
and does nat caause dawiistream floodang.
vti F-I No ❑ N,n El 2. Contains 50-yr developed.
v. ❑ N.❑ Ma E] 3 Releas&s at 50-yr pre-cflevelopecl.
YC3 El rlzo 0 nIn ❑ 4. Secondary avertlow to pipe in concrol siructure for 50-yeaa- deVeloped.
Yes F-I nO 1:1 N~AE] 5. Eniergency oWerflow weir for 100-year develapec3.
YEA ❑T4. ❑NrA 11 5. 5u_rnp prior to ora#let ta cnn¢rol structure.
V. E] N.0 Nrn E] 7. 1' miu, freeboard at SQ-year design storm is prouided.
yn E] r.. 0 NIA E] S. I.awzl turf or hydra seeded sitles and floar for publicly-maintained ponds or dryland grasses sgecified.
vE¢ El N-El xrAD 9. Spritiicfer systeir► for gublicly-maiiitaitted ponds or dryland grasses specified.
yo QN&❑ NIA Cl 10. Serni cQmpaction and lif[ requirements specifiecl where tzecessary.
v~ D N. 0 N,n ❑ 11. Is a 12' maimtenance daive to the bottQm of ponds needeci"? If so ntaxizriuni grade is 6:1.
20$ L()T PLANS CHECK1.15T
rts El r~o El INjA Q 1. Lnt plans are required; submitted on
Yes Clzo 1-1 N,. ❑ 2. 'nie 208 lot pians shaw:
YE, El NO❑,IA D 2a. The lot nuniber, black iium}er, suhdivisxan name, date dxawn, scale, north arrow and street name.
rIM El sD❑Nin E] 2b. Easement dimensisans in relativn to pmperty lines ur camers.
vo 0 Ho ❑ Non E] 2c. Location of curb, sidewalk or edge af asplialt as applicable.
Y. EI,. 1:1 rr,n 171 2d Setback requirernents
Y. ON4 E]NrA 1:1 2e. Swale flo6r elevaxioti
yo El NO EINrn E] 2f. Swale flQOr dimeii.sion5 are shawni in relatioti Eo properiy lines or carners.
r~ ~~O EIN/n E] 2g. Itim elevatian drywell type, frame auid grate type, centerline affset atid sta#i[an if drywells are present.
vO Ll rOOxrn E] 211. Curb cut Station, nOmnaf flowliae inVert.
Yes EInQ E)NIn E] 2i. Aiiy drairage ditches, cheir easenments, tlowline grade and other required improvements.
Y.D No D MA D 2j. Shows depth from the normal flowline co 6attom of swa9e.
0 ~0 NEACI Zk. An attacheci crass sectian af t.he swa9e ar ditcti.
Y. El No ❑ N/,► 1:1 3. Exiscing easements, buildings, £uture sef asides, and required buildiug setback lines are shQwn.
veA 0 no El Nfn ❑ 4. The section drawing sliows the cflncrece apran, R. Q. W.liae, and grass svsl or seeding if apgraveci.
0 N. Ll Nra 13 5. Lnt p9ans biave been stamped by a prafesszoual engineer ois a71 pages
Yes 1:1 K4 EINrn E] 6. LQt glans aae of sufficient 5ca1e to naaximbxe ttie lot sixe to the $'lz" x 11 " paper size. (Drawiiigs ntiay be an
p9ain white paper)
ves ❑ N. E]Kra 0 7. 208 lot pians were approued on
sk1istv4.017an45 8
, . ER[]SION & SEDUvIENTATION C[?NTRCiG REf2UlRENIENTS
El n, EIN,n p 1. Tdeniify the clearing and disturbeti ;ireas in the plati. This includes cuts and ~ills alcang slopes. Mirumixe dhe
amount of cleared area.
res Cl wo EINIn E] 2. Pro►ride ervsivn control facilities which slovu water aelncities - through the use of check dams, debris basin.5,
etc.
ve, Elr,z~ El ~u,A ❑ 3. Filter runnff from exposed areas prior to discharging ineu clrainage pouds and particularly pai❑r to clirecting
runflff inco drywel9s. Filtering measures mcluded installing temporary silt #raps, silt ponds, };r~avel cane
filters, etc. ln silt traps and poTids, siae sediment storage raa1umes hy detennining the aniaunc of silt material
$enerated Qver a Gmnnth period, using the Plaxman iViethoci. The silt traps and pands are cv pravide a settong
xone, and are tp be sixed in accordaiice with the niethod erutlined in 5ection I1-5.8.6 and 11-5.8 7 of the
WDC)E Stoamwater Managenieut Mariual.
Y. E] 1. ❑ IIn ❑ 4. Stabiliae exposed areas as soan as practical after grading wark is co►nplete, Or wklell grading work wi91
ternporarily cease for more than . Tn wet wiijter months, cemporazy stabilizatian
measures will be required throughout the duration af canstruction. Specify stabilization proceeiures,
revegetation requirements, mulching, etc. Sgecify r.he maximum time that, cleared areas are to be exposed
w+ithout protectioa or sta6ilixation ajid time of year.
Y~ ONO0 Mn O S. Stabilixe drainage channels. Pt-ovide for temporary and permanent erosian pratection measures.
rC3 El na 0 Nin 0 b. Provide fvr perinieter barraers aroutid exposed areas throu$h the use ❑f silt fences, sttaw baies, temporary
iiiCerceptor ditches, ece. Rouce runaff frorra unexpased areas around exposed areas wherever practical.
ruEl NQ El x/n E] 7. List rqucine maiutezzance procedures ta be implenienteti by the Cantractor througtiout the duration of
constnuctian. Silt traps, silc pancds, ctteck dams, chaauael restoration, etc. All wi11 require fairly coiastant
maintenance, especiOiy duriti$ aud inuneciiacely Fvllawing a rain stomi eaetit.
vo El N9 ❑ r.,A 0 S. Reduce the aniount of mud, dire and retclcs transpocted onto public roadways by motvr vehicles or r~uoff by
constructing a stabilizatiQn pad of rock spalls at entrances tQ consfruction site.
Y. O,9 13 rrrn El 9 1 ravide special prawisinrrs for construction under wet seasnn cnnditians. T7efine the season.
v. El N. 0 TrA El 10. Pravide 5na1 restaratian pt'acedures, site cestoreation, access road cleanup, clemiing drainage struceures and
ponds, etc.
0,r. El ,a Q 11. Include in the plans tlie standat'd Erasiori and Sediinentation ConCrDl note5 prepareti by Spokene Counry
cklisrv4 01Ian45 9
. F'IELD REVTEW R.EPUFZTi
,r, Llx, 0wA. El 1. Field inve.stigation trip made on
v. E1No E] Hie D 2. Dace this field repQrt was cvmpleted
Va El N. ❑ rarn E] 3. Are there any existing utilities on ttae project site? (Oaerheati gower, fiee hydtants, etc.) If yes, tlescribe.
vCJ 1:1 CO E3Nrn E] 4. Are the draiiiage basins on the graund die same as those that are presented in the drainage report?
v" El M ❑ NrAE] 5. Are there any daaidiage channels directed toward property?
Y. EJN. Ll N/A 0 C. Are there aay drainage chaanels direetiijg H+ater ihrough the property?
Y. El N. ❑ xiA E1 7. iJo Cnunty reeacts cut off drainage as per drainage calculativns?
va 0 Aa El NPer El S. lf t.here are culverts under caunty rvads, does the flaw go away from or toevard the ~roject?
v~ El n.❑ v,n El 9. What kitid of ground cover exists?
Y. LJ N. Ll N/n E1 10. I]escrihe any existing climunel condstians:
v.Q ,oE1rr,a 1:1 11. Describe chaitnel crpss secCion:
ro ~ Ka ~Iqln El 12, Exisdng Curb Type:
cklsstv4.4lIan95 10
SPOKAME COURITY ERIGINEERS
STOPPING SIGHT DISTANCE CAL+CULA710NS Date 17-Dat-95
SRG lAERTICAL CURVE Remew 1
Reviewer Parry
Project P1151 Project name. Midilome East 1st Add.
Terrain x Flat (.CyenQI'aI land SIDpe Q°!o to Sa1o)
Raliing (Generaf land slope >8% to 15°l0) f
Mnuntains (General land slope >95°Io)
ROAD TYPE
Urhanl5u hurban SemNru raVRural
Pu trlic public
' Locai Aceess Lacal Acc2ss
Arterial ADT<1 00
Colfectv r 1 00>A[?T>400
Secondary
x Major CourstyElrtenal
ADT<400
Private 40[1=A[?Tc750
. ' Extension t❑ 8 Qr fewer lots ADT>750
Tract "X'
R nvate
Extensian ta 8 arfewer lots
Tract "X"
Rvad name 32nd Avenue
PVI station 28+50Length of verbcal cunle pravided, 100
Design Speed. 45 Min Stopping Sight Distance 315
Entenng slope (G1, °Jo) -0.88
Ex►hng Slapa {G2, 0 56
G2-G1 l= A= 1.44
Check S>L
L1 = 23 -((400+3.55)IA)
L1 = -443 4 ngte use min curve length = D
Reqwred minirnum curvs length 0
Check SCL Gurve prav'sded is Adequate
L2 = A(S`""2)f(400+155)
N_2 = 95 0975
vsLffv2 IIAUg93
SPOKANE C(JUNTY ENGINEERS
STOPPIAfG SIC;HT QISTANCE CALCULATIaNS L7ate 17-Oct-95
CREST V€R71CAL CLJF2VE Reenew# I
Rewewer Rarry
Rraject P7751 PTaject name Midilome East 1 st Add.
Terrain x Flat {General land slnpe U% tcr 8°/0}
Rnlting (General land slope >8% to 15°l0) f
Mauntains (General land slape >1 5°10)
ROAD TYPE
LlrbanlSu hu rban 5emi-ru rallRucal
Pwhhc Pukalic
' Local Access Looal Access
Arterial P+aT<1 00
Callectar 1 (1O,HDT>4(]0
Secondary
x Majar County Artenal
AD7<4f30
Private 400CAQT<750
' Extension to 8 ar fewer Ints AaT>750
Tract "7C°
Prrvate
Extension ta 8 or fewer lots
Tract "?i"
Road narne 32nd Avenue
PVI stabnn 29+50 Length of venccal cun+e pravided 100
{3esrgn 5peed 45 Min 5topaping 5igh# Distance' 315
Entering slope {G1, 4 56
Exrhng 51ape (G2, °h) -Q 50
G2-G1l= A= 106
Check 5'L.
L1=25-(13291A)
L1 = -623 77 note use min curve length = a
Required minimum cunre fength a
Check S<L Curve proArled 2s Adequate
L2 = A(5`"2)11329
L2 = 79 1411
vcurrt un„g93
SPC)I(ANE COIJNTY EryGIIVEERS
STOPPING SIGHT DfSTANGE CALCUL4TION5 Date: 17-Oet-95
5AG VERTICAL CURVE Fieview 1
Revieenrer' Perry
Praject P1751 Proaect rsams Midilorne East 1st Add.
Terrain- x Flat (General land slope 0°lo to 8%)
Ralling (General land slope >8°to to 15°Io) f
Mouniains (General land s3ope > 15°l0)
RDAD TYF'f
ll rbanlSuburban Semi-rurallR ural
Puhlic Public
' Local Access Local Access
Artenal ADTC 10p
Collector 1 OD>AdT?400
Secandary
x Major County Artenal
ADTC4fl0
Prvate 400CADT<750
' Exterrsion to 8 or fewer lots ADT>750
Tract "X"
P nvate
Extensiors ta 8 ar fewer 4nts
Tract "X"
ftaad name 32nd Avenue
PVI stabon 33+50 Length of vertcal curVe provided 200
Design 5peed. 45 Min 5topping 5ight aistance: 315
Entenng slope (G1, °Io) -0 54
F_xrhng 51ope (G2, °h): ❑ 50
G2-G14= A= 104
Check S'L
L1 = 2S -({400+3 5S}IA)
Ll _ -814 71 nvte° use mtn curve length = 0,
Required msnirnum curve Isngth 0
Check S< Curve prowded is Adequate
L.2 = A(5"2)1{400+155}
L2 = 686815
vcuM UAug93
SPOKAIVE GOIJIUTY ENGINEERS S`fQPPING 51GHT DISTAh1CE CALCULATIQNS Date 17-Oct-95
CREST VERTICAL CURVE Review # 1
Reviewer Parry
Rrojeet R1751 Praject name. Midilarne East 1stAdd.
Terrain x Flat (General land sfope fl°Io tv 8°k)
Ralling (Genera4 land s9ope >8% ta 15%) f
Mauntams (General land slape >15°Ifl)
ROAD TYPE
Urbanl5uburban 5emi-rurauRura4
PubliC Public
' Local Aceess Local F1ceess
flstena4 AQTC100
Collector 1 D[}>ADT>4[}(]
• Secandary
x Majcar Gounty Artenal
ADT<4[}0
Priaate 400<ADT<750
' Extensian tv 8 nr fewer lots A❑T'750
Track "X'
Pnvate
Extension t❑ 8 or fewer IQts
Tract "}C"
Road name 32nd Avenue
PVI stabon. 36+25 Length of VertCal Curve pravided. 250
aesign Speed. 45 Mm. 5tapping 5ight Qistance 315
Entering slope (Gl, °/o) fl 50
Exihng Slope {G2, °lo} -Cl 50
G2-G1 l= A= 1
CFreek S- L'
L1=25-(1329fA)
L1 = -699 note° ssse min curve leragth = fl
Reqwred minimum curve length d
Cneck S< Cunre provided ts Adequate
L2 = A[5`"2]l1329
L2 = 746614
vcwv2.11nug93