Marietta E 16310 Central Pre-Mix - Addition
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ENGIFVEE]R'S IaEVZEW SHEEET
B9403
BLDG. PERMIT # -or,►FIL`E#
Reiatw rile # ( &fiP-Zl)
Date to Review 3-23-94 'Y"Ime 10:00 # P'RE-AFPLICATION
Date to AA & DR T'xme
Date Raceived 34-94
Projeet Name AbD-pRO/C0N`CRFTFJPKG- GIBN"CRAL PRE-Mix No. Lott No.Acres
-Secdon - Township - Range
SITE ADDRESS MARIE'IrA E 16310/W FLORA PARCEL # 1'2541-9132+
Applicant's Name ~ NR-WHY Phone # 534-6221
Addte-st Work #
Date Conditions ma3iea
CQptiiCt perspn Phone #
FLOOD ZONE V1N,0 w S OCFi00L
Enginder / Surveyoes /Architeces Name
Planning CQntaei Person Phone # 456-2205
`Date Submitted Desc:dption Initials
2YAGRMZNMW TO PAY FEES OR PRIORrPY F,EE coMPI.ETED &cO-PY TO ACCOUNTING
TIlNAL IPLAT VEFS CONIPLEIM & COPYr TO ACOOUN-nNG
~ .~NO'ITCEx'O PUBLIC # 1 3 4 6 C0MPLErED-OR NSEDS TO MSI.CNED
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Page 1
OFFICR OF T$S COUNTY ENGIIdE$R
SPORANS COUNTY, WASHINGTON
Project: Central Pre-Mix, Processing Plant Date 3-23-94
Address: E. 16310 Marietta
Parcel No: 12541-9132+ Ref No. 894039
The County Engineerinq Department has completed a review of
the above referenced project. The following information must be
provided in order for us to proceed with our review.
A) For any new hard surface area, for an asphaltic roof, or
- a roof containing HVAC machinery, a drainage plan
4 for the site shall be prepared in compliance with
G Spokane County "Guidelines for Stormwater Management". At
a minimum the plan must contain:
~ 1. Drainage calculations for stormwater voluYaes
generated on site.
2. Calculations for total impervious surfaces
~ contained within the site.
3. Finished qrade elevations for structures to be
constructed on s ite .
4. Finished grade elevations at the top and bottom of
the 208 swale.
~ S. A tYPical cross section of the 208 swale.
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6. Calculations to justify the number and type of
drywells proposed.
7. Elevation af drywell inlets where applicable.
8. Copy of the proposed landscape plan.
C 8) The subject property is affected by the "Findinqs and
~ Order" and the "Conditions of Approval" for the following
n ~ land use action:
Binding Site Plan No. BSP-88-21, and BSP-87-17A.
C) The following improvements within adj acent Right of Way
are required prior to the release of a building permit:
1. Approach permits must be obtained, after a site
plan has been approved, and before the issuance of
a building permit, from the County Engineering
Department for any new or improved driveway
approaches to the following streets:
a. Marietta Avenue
D} Insufficient information was submitted with the ~roposal.
We are unable to proceed with our review. We will need
the following before we can proceed:
1. Site Plan.
2. Orainage plan as specified.
3. Other information:
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Page 2
a. A parking and traffic circulation plan shall
be submitted and approved by the Sgokane County Engineer. The
design, location and arrangement of parking stalls shall be in
accordance with standard traffic engineering practices. Paving as
required by the County Planning Ordinance, will be required for
any portion of the project which is to be occupied or traveled by
vehicles. It is illegal to back out onto the Right of Way.
b. The westerly approach to the site appears to
conflict with a 208 swale for Marietta Avenue. Please review BSP-
88-21 and address the conflict.
E) Utility Condition: Permittee is responsible for arranging
for all necessary utility adjustments or relocation as
required for completion of the improvement.
F) The owner of the property or the authorized
representative must complete and sign Spokane County
Engineers "Agreement to Pay Fees". This document must be
returned to the County Engineers Office. Plan review will
not be completed until this docwoaent is executed. This
document is attached to these comments. Please return
the completed Agreement to your contact person at the
Engineers Department.
The applicant or his representative has been given a minimwn
requirements list. This list is not inclusive of all the
requirements needed but should be used as a minimum guideline.
Without the "minimwa" requixements the Engineers Deparfiaaent may
not be able to perform a complete review of the project and could
result in prolonging the period before permit issuance. Only
after all the information and requirements listed above are
supplied or completed and the necessary review has been
accomplished will your building permit be released.
Your contact person at the County Engineering Department is
Robert Turner, 456-3600.
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S P O K A N is C O U N"f Y
OFFlCE OF TI IE COUNTY ENGINEBR ~ A DIVjmQN OF TI IE I'UHUC WORKS DEI'ARTMENT
Ronald C tformann, P E, Cnunty Engtnees Dennis M Sooit, P E, Dlrector
AGREEMENT TO PAY FEES
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ENCtNEEIt S ACREEMENT NUMBER 3 ~
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This agreernent between S(okane CountY end' ~ e•/ C--..VW4,,q L /°1
whose interest in the project is bt~~#=~ '
,
ILC . ascui,
is entered into this LY day of OAY ,19 This agreement is applicable to the project
known as:
sz 41'
r i Or~ /f1: X~~/o~/~(~ P/a•t~
That tlte inclividuefs and parties aamed lierein as having an interest tn the above described property or
project agree to the following:
l. Reirnburse Spokane County for project review and inspection fees as specified in
Chapter 9.14 of the Spokane County Code. The fees will be based on actual salary
costs incurred by Spokane County for project reviews and J or inspections plus a ten
percent administrative charge, and will he bjlled monthly as accrued. Any finat
billing amounts, to include any Iate fees or any otlier expcnses jncurred in tlie
coliection af an ovcrdue aooount must be Paicf prior to the County's acceptance of
the rroject for filing.
2. The undersigned agrees that these fees ere due and payable upon receipt of the
billing as specifiecl above.
3. Any invoices not patd witliin 30 clays oF tlte invoice date will be subjected to a late
fee ciiarge of l% per month (12% per yeat) on the unraid balance of !he account
ancl any accrued late fee cliarges. In addition, if any outstanding balance on lhe
account for this project is not paid within 30 days of the invaice date, no furtller
reviews of lIte project documents will be conducted until Ilie enlire account balance
ys paid. Any balance on the account for this project not paicl witliin 65 daya of the
invoice date may result in legal action or the initation of otlter collection proceclutes,
including refcrral to a collection agency. 1'he Sponsor will be tiable for any and ali
expenses incurred by tlte County for lhe coliectYon of overdue accounts.
4. ne montlt{y billing shauid be sent to the Altention of:
~
,
NAME: ~ • I~~
G.' ° 'Of'r4 /
ADDRESS: 'A7
CI1'Y, STATE: W4
Z1P CODE: 4
PfiONE dj.Y~4 -4A22.0:? ~
•
I undersiancl tliat failure to pay these feea may result in delay in completion or arproval of the project or
other hossible sanctions.
❑ If this fee asreemcnt is oompleted by someone oliier tlian tlie Sponsor (i.e., the
project owncr or a principal in tlte firm sponsoring the projecl), such as llie Engineer
desfgning the project, then written suthorization from the Sronsor speciticnlly
nuihorizing the Agent to execute lliis Fee Agreement is attached to thts Fee
Agreement. r
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S[aNATURE By:
/&7 u.~101volo~e"
~ (PRINT NAME)
RETURN YELLOW CQI'Y TO Si'IOXANE COUNTY ENGINEERS
k41WaftE1t1Cn fCO eROAj i
W 1026 DroaJway Ave Spokane, WA 99260-0170 (509) 456 3600 fAX (509) 456-4715
TRANSMITTAL
Date _ e- Ffle J~~.,~
To _drJ`-r~.,~' --'-G~r f pMject A6,
~ ICI~• _ p~ SubieR
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Itrm Capres Datc Descfipiem
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OFFICIAL PUBUC DQCUMENT
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PRO,dECT # •
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RE4URN O COUNTY-MINEER
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p As}vu rc"esced XFur your apprcrvat Q Rrcum requested
❑ For )our iafomian 0 Far your revira _
Ftom
DW - , ~ ~ssoc~~s,, INC. = JUN 2 4 1994
A PROFESSION CES (QN5[1I:flNG EIRM :
OFFIGES iN OREGOK WASHiNGTOX CAIJFORTf U1 AND ARI7ANA
vvESr tio`cATnLno ; SPOKME COWi i tWGINEER i
sgoa'qE, WMMNGnay "201 - - . . . _ . . . ~
(509)327-8697 FAX'(509) 327•7345
PROJECT NUMBER= 94006304( APPLICATION DAf 07/07/94 PAGE= 01
THIS IS N4T A PERMIT
PENALTIES WILL BE ASSESSED FOR COMMENCING WORK WITHOIIT A PERMIT
SITE STREET= 16310 E MARIETTA AVE PARCEL#= 45121.9132
ADDRESS= SPOKANE WA 99206
PERMIT USE= CPM BLOCK PLANT
PI,AT#a 999999 PLAT NAME= RANGE
BLOCK= LOT= ZONE= I-3 DIST#= H
AREA= 00000000 F/A= F WIDTH= DEPTH= R/W= 60
# OF BLDGS= 1 # DWELLINGS= WATER DIST = SPOKANE IND PARK
OWNER= CENTRAL PRE MIX COMPANY PHONE= 509 539 6221
STREET= POB 3366
ADDRESS= SPOKANE WA 99220
CONTACT NAME= JIM MC ARTHUR PHONE NLJMBER= 509~448 9016
BUILDING SETBACKS: FRONT= 100 LEFT= 160 RIGHT= 160 REAA= 300
REVIEW INFORMATION
DEPARTMENT REVIEW REQUIREMENT
BUILDING REVIEW COORDINATOR - J LARSON .
CONMENTS : BQILDING PLAN REVIEW REQUIRED ,
COMMENTS : BUILDING ENEAGY PLAN REVIEW REQIIIRED .
CONMENTS : SEPA REVIE ENVIRONMENTAL REVIEW RE4UIRED
4CONMENTS : ENGINEER APPROACH/FLOOD PLAIN/DRAINAGE
COMIlMENTS : ENGINEER SITE DRAINAGE TO SE REVIEWED
CONMENTS :
HEALTHDIST YJEW OA ADDITIONAL WASTE WATER
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REVIEW CONNENTS
SPOKANE COUNTY ENGINEER
DEVELOPMENT ENGINEERING SERVICES
PROJECT B94039 REVIEWER: Bob Turner
PROJECT NAME: Central Pre Mix DATE: 5 Jun 94
ADDRESS: 16310 E. Marietta REVIEW 2
COmmmS
Remove all "future" areas from plans unless labeled as a"phase" of
the permi.t. If labeled as "phase", please include calcs to support
drainage.
All traveled surfaces are required to be paved unless a paving
waiver has been granted.
Meet all conditions of Binding Site Plan before Building Permit
approval.
Approach Permits are required on all new approaches as well as all
3pproaches that will be altered. Contact Sylvia Lightfoot at the
County Engineer's Department. Approach permits for county roads
wilZ not be issued until a site plan is approved.
Dependinq upon the result of the paving waiver, use a curb to
separate the asphalt and gravel areas with a curb.
Re;nove all "soft" dimens,.ons. To make them "hard", remove the
Include detail of retaining wall.
Correct drywell detail on the site plan.
Loading ramp down to a drywell is not allowed.
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REVIEW COMMENTS
SPOFCANE COUNTY ENGINEER
DEVELOPMENT ENGINEERING SERVICES
PROJF:CT B94039 REVIEWER: Bob Turner
PROJLCT NAt+E: Central Pre Mix DATE: 9 May 94
ADDRESS: 16310 E. Marietta REVIEW 1
C0MMENTS
All traveled surfaces are required to be paved unless a paving
waiver has been granted.
Meet all conditions of Binding Site Plan before Building Permit
approval.
Approach Permits are required on all new approaches as well as all
approaches that will be altered. Contact Sylvia Lightfoot at the
County Engineer's Department. Approach permits for county roads
will not be issued until a site plan is approved.
The County requires a Spokane County Type 4 drywell lid for
drywells in 208 swales. Specify on tbe drawings this type of lid.
A landscape plan is required to ensure there is no conflict with
swale area.
Enqineers Stamp must be signed and dated.
DRAII~AGE REPORT:
Provide contours or sufficient spot elevations to check site
grades. One-percent is the nunimum requirement without special
construction requirements by a licensed engineer.
1208' Calculations for the site are required for runoff af
asphaltic surfaces (pavement, roofs, etc. ) withi.n the Aquifer
Sensitive Area. Show the quantity of asphaltic area, volume
required and provided, swale area required and promded. Check
calcs on basin 3 and 4. In your drainage report, list the
description of the areas for your bowstring calcs for basin 4.
Sugqest to change the retention pond in basin 4 to a detention
pond. This would discontinue the overflow on the road.
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S P O K A N E C O U N T Y
E'LANNING DHPARTMENT WALL.TS D HUBBARD, DIItECTOR
August 15,1994
T'un Mutphy
Ceatw Pre-Mix
P.O. Box 3366
Spokane, WA 99220
RE: BP 34-94
Centrel Pre-Mix Package Concreie & Block Production Facflities
16310 Marieua
Dear Mr. Muiphy;
This letter is to infoqm you the Spokaae County Planning Departnnent has approved your
request far a paving waiver for both the block storage area aad the stonagetwork ai+ea
adjacent to the block producrion facility based upon recommendations by the Spokane
County Engineet's Office aad Spokane County Air Pollution Control Andiodty. In
tion, this deparmaent will allow the use of recycled asphalt pavement as per the
Spokane County Engiaeees Office. All other traveled surfaces on-site are to be paved.
If you have any questions, please feel free to contactt me at (509) 456-2205.
Sinoerely, . ~
?
llgand
Spokane County Planning Department
c: Kelle V'igeland, SCAPCA
Paul Lennemana, County Engineers
WES'T1026 BROADWAY AVENUE • SroxaNE, WasNwcmN 992bD-0240 •(509)456-2205
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CEIVTRAL PRE-MIX CONCRETE CO.
CORPORATE OFF1CE • EAST 5111 BROADWAY • P O BOX 3366
SPOKA►NE, WASHINGTON 99220-3366 • (509) 534-8221
March 4, 1994
To Whom It May Concem:
The attached site plan is for a proposed concrete block manufactunng facility
and a concrete packagin8 facility for Central Pre-Mix Concrete Co , to be tocated
on lots 13, 12, and 14 in the South Park of the Spokane Industriai Park.
The road going around the perimeter is primarily for entering and exitmg of
gravel trucks and cement tankers, delivering raw material to the two production
facilities. The two namow lines headed north and veenng off to the east is a
conveyirtg system for the materiai that wili be put in the four overhead bins,
' which are shown between the finro buildings. We then have conveyors going
west to the kiln, which `nnli dry the materiai prior to bemg put into overhead bins
in the dry-mix production facility. After the materials are packaged, they wil be
stored in the 150' x 100' warehouse. The short conveyor headed east into the
block production building, will feed a mixer mside the bijilding, which will place
concrete into a block machine, which will then utilize a rack transporting system
that will put the block into kilns for curing and for removal the following day. The
completed blocks will be put on a cubtng line, palletized, and stored outside the
block production area in the open air. The two sets of narrow lines going east-
west on the south end of the property are two existing railroad spurs servicing
C X.T
Customers will come into the site from the west enirance and load between the
warehouse and the office on the north end of the property They will then exit
using the east exit that the gravel truclcs and cement tankers will also utilize
The round circles to the west of both the dry-mix plant and the block production
facilities are cement storage silos.
We look forward to sittmg down with you and going over this plan at your earliest
convenience
Yours truly,
CENTRAL PRE-MIX CONCRETE CO.
Tim
a~~r
Vice President - Sales
TIW'~j
SPOKANE 0 COEUR D'ALENE 0 MOSCOW-PULLMAN 13 TRI-CITIES 0 YAKIMA 0 SEATTLE
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NOTICE OF TRANSMITTAL ;
,
ADDRESS• P[t4JCCT #
/C 3 /L .~',~~i►r~~-~ ..~i~
BUSINE,SS NAME: PARCEL NO./LEGAL
e,'z"~'l- DESCR[PTIOIV:
PRQPQSED USE: a y /
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G~CIQ►.~r~/.~ ~ .C~-~~,~~► ~
,or
coivTAcr: PxoNE:
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REASON FOR TRANSMTTTAI.
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PREAPP1.[CATiON t70NFF.RBt1CB PREOON9'i'RUCTtON CONFEMCB OTHER:
DATE: T'IME:
DOeUbfENTS CIItC:ULATED
DISTRIBUTED TO: ~ D6SCttIPf[ON BUiLDINaS PLANMO LKO== N6Ai.TH SCAPCA FQt6 DLST / OrMMR:
,
Sits Plaa (aew) (ravIs4
t~cal Materisis I.ist
_ ftking Ptaa.
• ' M W IMIM
Signage Plan
Gightiog Pian
Djsinaga P1aa
Drabuga Catculations
w wMr.
Agrwment to Pay F= -
I M M 1 A\ 1 1 • N
Lcrigation Plan
Lsndscapa Plan
• Promissory Lattcr
lr.BAdSt;ap0 COa Estimat4
tB~iC C1[+Ull8ti0Z1 Pt8II Coostntction Dcawiags
Flooc Plan ~
.
7'he above Iidns ftave beas
° neceived:
Date of Transmittal:+3 •Review Coordinator.
Cimuiated by.
fo p-r
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Spokatrc Coutity Divisiou al Bailc/rrigs * 1026 Wut Droadwccy A+-cnue « Spolcc:ne, WA 99260 «(509)456-3675
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S P O K A N E C O U N T Y
OFFiCE OF THfi CAUN7Y BrTGAVBHR ~ A DMmON' OF THE PUHLIC WORI6 DfiPARTMfiNT
Ronald C Hormann, P E, County EngLneer pemus M Scott, P E, Director
TO: Jim Millgard
Spokane County Planning Department
FRQM: Paul Lennemann, E.I.T. P.-
County Enqineers Department
DATE: 15 August 1994
3IIBJECT: Paving waiver for Central Pre Mix.
Jlm,
The Enqineers department will allow Asphalt Grindings for the
Central Pre-Mix Building Permit. If you have any questions please
call me at 456-3600.
1026W Broadway Ave. • Spokane, WA 94260-0170 •(509) 456 3600 FAX (509) 3243476 TDD (509) 324-3166
I
S P O K A N E O U N T Y
OFRcE oF T~m Counvn Excnvm • A DIVLS10A1 OF THE P[JBUC WQRKS DEPAR'fMENT
Ronald C Hormann, P&, County fingmePr Dennis M Scott, P E, DirecMs
T0: Jim Millgard
Spokane County Planning Department
FROM: Paul Lennemann, E.I.T. P_
County Engineers Department
DATE: 15 August 1994
SUBJLCT: Paving waiver for Central Pre Mix.
Jim,
The Engineers department wlll allow Asphalt Grindings for the
Central Pre-Mix Building Permit. If you have any questions please
call me at 456-3600.
1026 W Broadway Ave • Spokane, WA 99260-0170 •(509) 456-3600 FAX (509) 324-3478 TDD (509) 324-3166
SPOKANE COUNTY
~~EAlpeAM AIR POIlUTION
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S P O K A Nis CONTROL AUTHORiTY
WEST 1101 COLLEGE, SUITE 403 • SPOKANE. WA 99201 •(509) 4564727 Fax (509) 459-b828
July 7, 1994
Jana McDonald
Central Pre-Mix
PO Box 3366
Spokane, Wa 99220-3366
Dear Ms. McDonald:
I have reviewed the site plan for the new facility in regards to the paving waiver issue. 1
have also consulted with the County Engineers as to the appropnateness of a paving
waiver. Both SCAPCA and the Engineers office have some concerns over the proposal and
we would like further tnformation before any recommendation or denial be made. Please
submit the requested information to me. I will forward a copy to the Engineers office.
1. in the block storage area, describe how the blocks will be stored. Will they be on
patlets? What is the size of the forklifts that will be used in this area? Do you have
evidence that the types of activities performed and equipment used in this area would
deteriorate paving7 If so, please provide this information.
2. In the storage/work area, describe the activities that will occur in this area, including the
types of vehicfes that will be used, if any. Again, do you have evidence that the types of
activities performed and equipment used in this area would deteriorate paving7 If so,
please provide this information.
Once this information is received the review will continue.
Thank you for your cooperation.
Sincerely,
SPOKANE COUNTY AIR POLLUTION
CONTROL AUTHORITY
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Kelle R. Vigeland
Environmental Engineer
cc: fite
Paul Linneman, County Engineers
Jim Millgard, County Planning
L, P'a+ted on Recycwd fnAOr
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O ' t
bS PC> K A N E~, , C O U N T Y
OFFICE OF THE COUN'!'Y fiNCmE[t • A DMSION OF THE P[JBLIC WOR1CS DEPARTMENT
Ronald C Hormann, P.E., Countq Enganeer Dernis M. Scott, P B, Duwtor
Date: '14A I y ~ ~ 019
SU8.1ECT: CENtaN i P~e eVi .y
Gentlemen: LArry C15cri
A review of the road, drainage, or site plan for the above-referenced btulding pernut has
been accomplished. Areas of concem to us are indicated in red on the attached plan set and
calculanons marked "ORIGINAL". Please make the correcuons and resubmit them to the
Building Deparhaent in order that the revlew process may proceed. When the Alans are
resubmitted, mark all chanees on the revised nrint in color and mclude the mark-up.
Please uote that the plan set and calculadons marked "ORIGINAL" are official public
documents, and must be returned wnth the revised plans and calculations. Revlew of the
revised plans and calculataans will not proceed watfl the "ORIGINAL" set is returned to the
County.
If you have any quesnons about tlus review, please contact us at 456-3600. Thank you.
Very tivly yours,
Ronald C Hormann, P. E.
Spo e County Engineer
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Robert Turner, E.I.T.
Plans Review Engineer
1026 W Braadway Ave. • Spokane, WA 99260-0170 •(Sd9) 456-3600 FAX. (509) 324-3478 TDD (509) 3243166
~ • REvzEw corMENTs
SP4KANE COUNTY ENGINEER
DEVELOPMENT ENGINEERING SERVICES
PRiOJECT B94039 REVIERER: Bob Turner
PROJECT NAM: Central Pre Mix DATE: 5 Jun 94
ADDRESS: 16310 E. Marietta RM Ew 2
COIybuNT3
Remove all "future" areas from plans unless labeled as a"phase" of
the permit. If labeled as "phase", please include calcs to support
drainaqe.
All traveled surfaces are required to be ioaved unless a paving
waiver has been qranted.
Meet all conditions of Bindinq Site Plan before Building Pertait
approval.
Approach Permits are required on all new appraaches as well as all
approaches that will be altered. Contact Sylvia Liqhtfoot at the
County Engineer's Department. Approach permits for county roads
will not be issued until a site plan is approved.
Depending upon the result of the paving waiver, use a curb to
separate the asphalt and gravel areas with a curb.
Remove all "soft" dimens:.ons. To make them "hard", remove the
Include detail of retaininq wall.
Correct drywell detail on the site plan.
Loading ramp down to a drywell is not allowed.
1
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S P O K A N E C O U N T Y
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OFFICE OF THE COUNTY ENGmm • A DMS10N OF TH& PUBLIC WORKS DEPA►RTMfiNT
Ronald C Hormann, P.E, County Engineer Dennis M. Scott, P E, Director
TO: Kelle Vigeland
Spokane County Air Pollution Control Authority
FRO!M: Bob Turner
County Engineers Department
DATg: 13 July 1994
BQBJECT: Paving waiver for Central Pre Mix.
Dear Kelle,
By reyiewing the letter dated July 12, 1994 from Jana McDonald, the
County Enqineering Department recommends the paving waiver in the
block storage area. However, this department denies the paving
waiver in the storage/work area due to the absence or minimal use
of 8 ton loads. The Engineering Department would require the
yearly application af a dust palliative and an application after
enery repair of the qravel surface due to the rutting of the
forklift tires.
If you have any questions please call me at 456-3600.
Robert Turner E.I.T.
cc: Jim Milgard
1026 W Broadway Ave • Spokane, WA 99260-0170 •(509) 456-3600 FfUC (509) 3243478 TDD (509) 324-3166
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T0: U'im Millgard
Spokane County Planninq Department
FRM: Paul Lennemann
County Engineers Department
DA►TE: 9 August 1994
SUBJECT: Paving waiver for Central Pre Mix.
Jim,
Although asphalt grindings control dust very effectively, the
porosity of the material allows runof f to drain through to the soil
below. The runoff, then, can not be treated to remove
contaminates. Also the material is less stable than Asphalt Paving
and will be more susceptible to deterioration. The maintenance
would be more intensive; grading ruts and birms would mix the
grindings and the gravel base, eventually resulting in a gravell
surface. The Engineers Department recornmends Asphalt Paving in the
wvrk areas as indicated in the Paving Waiver.
If ynu have any questions please call me at 456-3600.
Paul Lennemann, E.I.T.
cc: Jim Milgard
.
5094596828 SCAPCA 432 F'011W AUG 04 '94 16:10
SPOKANE COUNTY
` - AIR POIlUTION
0 P oK A~n CONTROI AUTHORITY
WEST 1101 COLLE6E, SVI'TE 403 + SPCKAMO,INA 99201 0 (509) 456.4727 Pax (509) 459•5828
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FOR Y'qtlR INFORXATYQN/FILES • NO ACTION RLQIIIRED
PLSASE x"XRW Arra coMMENr
ENCLOSEn ZS BEING ~ELp PBNDING 'XOUR APPROVA.L
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5094596628 SCPPCA 432 P02s03 AUG 04 '94 16:11
SPOKANE COUNTY
AIR POIIUnON
a P,!lop
o K p Na CONTROL AUTHOAITY
WEST 1101 G4LLEGE. SUITE 408 • SPOKANE. WA 99201 0 (S09) 4564727 Fax (509) 459-6828
August 4, 1994
Jim Millgard
Spokane County Plannjng Department
North 721 Jefferson
5pokane, Wa 98260
RE; Add;tionai Comments Reoarding Paving Waiver Request For Central Pre-Mix
Oeer Mr. Mcllgard:
.
After I m8de recommendations regarding Cen#rai Pre-Mix's new facility (letter doted July 16,
1984), Central Pre-Mix requested that 1 make recommendations as to whether the use of
recycied asphalt would be acceptable rather than paving in the storage/work area.
As a result of this request I have visited several sites within Spokane County where recycled
asphalt (asphelt grindings) hava been laid down as surfacing. The results are somQwhat
mixed. I have summar,zed my findings below. Some of the problems with this approach are
not necesserily related to eir quality issues, which are whet I base my recommendations on,
however you may want to consider them in your final decision.
The City of Spokane has two areas In town where recycted asph< has 6een used. The first
is the road through High Sridge Park. A visit to this site showed thst the surfece is not ne8rly
as smooth as asphalt paving, nor does it have the integrlty (thers are sectionS of the road
which are breaking up) that asphalt paving has. It does however reduCe duat emisslons
considarebly over what would come from a simllar gravel or dirt road.
Yhe second city site is e seCtion of Nepe just south ofi Francis. Again the dust control was
good hut the surface wes not smooth, and there were areas where the surfece was breaking
up.
I apoke with Don Berger Of the City of Spokene's Street Maintenance Deparcment. He has '
had several years of experience with these sites. Ne said he felt that the surface dfd a good
job of controlling dust. He also sard that in order to be effectlve at least two or three inches
of grindin8s would need to be Iaid down. I asked him about maintenance of the surface. He
said majntenance wes more difficult because you cannot grade the surface.
t have alsv had some experience with this type of surfece et the Washington State
Department of Traneport8tion office Iocafied et 12223 SR 395, At this site asphalt grindings
were Rlaced In a parking lot in lieu of pavmg. My wsits to this site over a one year period
showed ther the surfece did not hold up well to the treffic. Loose materIel was present on
the perkine lot. There was evidence of trackine from the lot onto surrounding streets.
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509459682B SCAPCPI 432 F03/03 A1K3 04 ' 94 16:12
Jltn Mqigard
AuAust 4, 1884
Peso 2 _
Ecocycle aiso has this type of surface on a portion of their site. I have not been out there
recentty, but vlsirs about a year ago indiCated thst Che surface was controllmg dust
adequately.
I am nat sure of the reason why some sites are performing, ti.e., goad dust control,
maintenance of surface integrity) better then other sites. There are probabiy severai fectors.
How fihe surface is put down would certainly affect the final performence. Applying an
appropriate thickness and compactcn8 it adequately should inCrease the dust control
effectivensss and durabilrty. The amount and types of traffic probably also affect the abiiity
o# the surface to perform.
In Jena McDoneid's July 14, 19$4 tetter she suggests use vf this material in e storass/work
area where there will be only forkitft traffic which won't excQed S to 8 mph. She goes on to
sey that due to the slow speeds, fi9ht travet, and proper maintenance recycled asphalt
pavement would be as effective as paving.
After rev,ew of the above sites and the information provided by Centtal Pre-Mix SCAPCA
befievgs that a recycled asphelt surface witl prov,de adequate dust control However,
SCAPCA is sorrtewhat skeptical about the durebility of the surface, and it probably would not
be as effective as paving in controlling dust.
If you heve eny questions, I can bs resched at t5091456-4727 ext. 108.
Sincerely,
SPOKANE COUNTY AIR P4LLUTION
CONTROL AUTHORt'TY
Kelie R. Vigelsnd
Environmental Engineer
enc. as stated
cc: Jana McDonald, Central Pre-IVlix
Bob Turner, $pokane CountY Englneers Tam Davis, County Dept. of Bulldin9s
/
• SPOKANE COUNTY
Cll CLEAR•vAIR POLIUTION
S P p K A N ~ CONTROL AUTHORgY
WEST 1101 COLLEGE, SUITE 403 • SPOKANE, WA 99201 •(509) 4564727 Fax (509) 459-6828
July 15, 1994
Jim Miltgard
Spokane County Planning Department
North 721 Jefferson -
Spokane, Wa 99260
RE: Paving VUaiver Request For Central Pre-Mix
Dear Mr. Millgard:
SCAPCA agrees wiih the Engineers recommendations in regards to the new Central Pre-Mix
Block plant. It is reasonable to ailow the block storage area to remain unpaved due to the
type of heavy traffic that will occur in these areas (loaded forklifts executing sharp turns,
etc... See attached letter from Central Pre-Mix dated July 12, 1994.)
,
It is SCAPCA's initial recommendation that the storage/work area should be paved. However, '
Central Pre-Mix has submitted a request to allow thrs area to be surfaced with recycled
asphatt. I will review this request and make comments to you as to its appropriateness. I will
be out all of next week, but will do the review earty the following week.
If you have any questions, I can be reached at (509)456-4727 ext. 106.
Sincerely,
SPOKANE COUNTY AiR POLLUTtON
CONTROL AUTHORITY
~
Ke11e R. Vigeland
Environmental Engineer
enc. as stated
cc: Jana McDonaid, Central Pre-Mix
Bob Turner, Spokane County Engmeers Tom Davis, County Dept. of Bwidings
,
C~ Prrsred orr Fe*tfed Paper
07/14/94 15: 21 '0508 534 3839 CENTRAI. PREXIZ i♦-o COUNTY ENGIATEERS ~ 001
CENTRAL PRE-MtX CONCRETE 00. -
CORROHAIE OFFICE EAS1"b1118ROADWAY • P.O. BQXM68
SROKANE VYA$tilNGt%W 09ZW= r (8G9~ 63&62Zt
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PosW Fax Nobe 7671 T° / • F"°mM
• ' . ;am . Jt~Iy 14,1984 w~~r-~,~'3 ~o~~f r - - - - • _ SwO~~-~~►g R"0
- -fGelleR. Vigeland ~ . " • • ' -
SCAPCA
W. 1101 Col[ege Avenue, Suite 403
Spokane, WA 99201 -
Dear Ms. Vrgeland
TfiES yetter is in regands fio our phone conversation on July 14,1994. '
~ We apptedat+e the paving waiver for the btock storage area. As for the
ster-ageAvorjc areia, you teques#ed that it be paved-' 1 su99ested the possibtlity of
using "RAP" or Recyded AspW Pavement in ptaoe ofi pavtng_ This ar+ea will be
tr°aveted by fortdtft no# exceeding 5-8 mph empiy and stowaer when Ioaded. 11Ve
toel that due to the slow speeds, light trpav+el, and proper maintenanve, _ RAP
would be just as e#fective as pa%4rtg. '
'
Thank yau for your oonsideraton on this matter_ Please mntac# me upon your
decision. • -
Sinoereiy. -
CENTRAL PRE-MIX CONCRETE CO.
Vl'o'fe, :a.~~ -
ana McDonald
meer
. Asst. Eng' '
Idw
c: Paut Linneman, Spokane Courrty Engineers
'
• Larry Otsan, David Evans & Assodlafift
07l12/84 15:33 10309 334 3838 CENTRAL PREmIg COUNTY ENGINEERS f~1001
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CEN7RAL PRE-M!X CONCRETE GO.
OOflPOi~AIE aFFAM • EAST 5111 BFiOAGWAY • P.0. BO7C 3i66
3POKANE VASHtNG'ftON 9922D.9366 • t6091 8344M
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' URGENT - NEEDS YOUR IlVIlI~IA1'E ATTENTION
FOR YOUR INFaiRMA1I0NNU.M - NO ACTION REQLIIRED
FOR YOUR SIGNAIURE AivD • -
PL'EASE REV~~V AND CONIlVEENf
FNCLOSID IS BEINC ECELD PErIDIlNG YOURAPPROVAL
PLFrASE CONTACT ME UPON REC,~T
PEt~ YOUR REQUEST
ORICMRAL IS BENG MAl'L~D
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If yoa do n+o~t i+eceiva aIl of the gaM plem co= me immeidiately $t (509) 534-6221 or
FAX tio (509) 534-3839.
spWM 0 cosUa CrALEM aMoscow-puuMM oM.CmES 13 rAKW o sEarnE
07~'12/94 15:54 ''S09 S34 3839 CENTRAL PREMI% COtTNTY ENGINEERS ~I002
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CEIVTRAL PRE-MiX COtvGRETE CO.
CORPORATE OFFICE • EAST 8111 BROADWAY • P.O_ BOX 3166
SPOKANE WASWNGTOH 892?JDM * (SM594.M
Juty 12,1994
Kae,ue R. Vtgetand _
SCAPCA
.
W.1'[ 01 Coltege Avenue! Suite 403 _
Spokarze, VtIA 9!3201
Dear Ms. Vigeland: . .
The following is the informon you requested.
1. in the black storage area, fhe blocks witl be stored oct paliets stacked three
to fve _paltets high and weighinq ten tons per sfsdc. The+ forklrtft weigh
• apprownavmy four Ions and carry an addfional four ton load exerting 380
R.S_t. on the pavement
, _ . .
2 In the srtorageWork atea, them will be empty paltets stoFed and
oocaifionaity futt paltets vyhen the dry-mix dnnscon has an exoess of
product
.
Asphait Is not a good sutfaoe for forklifts that do a lot of maneuvering. In this area
wkh the freeze/thaw cydes in the winter and the heat in the summer' a fotidift
carryin,g a load af six to eight tons and maneuver[ng in tight spots fo Inventory
pnoduct will rip and tear asphaft pavement A focklift is poittf toaded causing the
wheets to .spin from locc bo todc before movemen# is resumed. This spinning
action of the tires during a ffltaw cycle or m fhe heat of summer wi[I tear up the
asphalf cactsing cxack'rng, ngfing and virtually ruurt ihe asphatt Ortcre fhe cxaciang
starts, a fioridiff.can add to te problem by catching a fork and #earing it up more
makin,g fhe ~ent unstable and unsafe when carr~rrng
s toaded pal[ets. This
~uabon difrers from loading trucks wher+e the ttght turncng does not oacur. When
ioading trudc.s, a forldHt goes directly ta a flat bed, sets Its load, and baclcs direct[y
away. •
13ased on the above ktortnadon, w8 retpectfully tcquest a paving waivipr as site
worfc is sccheduled to begin next week
Sincerely,
- CEN7'RAL PRE-MUC CONCRETE C0.
. We-Aaof ~ .
' ~na McDonald
Asst Engineer -
!dw
c: Larry OlsoNDavid Ewans & Associates
SPOKANF n Mq 10 n'01 CWF nWW11111/-= 11 t 1fA11f 1"7 TDt I►IT7cr Pi
OKaNE COUNTY
SP
i
C~~,r~AIR POLlUTION
s P o K^ Na CONTROI AUTHORITY
WEST 1101 COLLEGE. SUITE 403 • SPOKANE. WA 99201 •(S09) 456-0727 Fax (509) 459-6828
Tim Murphy
Central Pre-Mix
PO Box 3366
Spokane, Wa 99220-3366
Re: Proposed Package Concrete and Block Production Facility
Dear Mr. Murphy:
After review of the plans which have been supplied to SCAPCA, the following are
requirements that the project must meet concerrnng air pollution laws and regulations.
There may be additional requirements that have not been identified at this time.
1. A Notice of Construction must be submitted to and approved by SCAPCA prior to
construction, instaltation, or operation of the facility. The Notice of Construction must
cover the following sources:
all fuel burning equipment rated at greater than 400,000 BTU/hour, including
kilns, boilers, heating systems, etc....
all internal combustion engines rated at 500 horsepower or more ~ q •~+~c~-~.-~
~
all silos used to store matenals which may release particulate matter when
handled
~ 3K all conveying equipment which is not within a building
~
4,a any stages in the production of packaged concrete products and concrete
blocks which may emit air contaminants into ihe ambient air (mixing,
peckaging, etc...) fugitive sources of emissions, e.g., '!tsde storage area~s travelled surfaces,
~
r4 As a pan of the Notice of Construction review, SCAPCA will determine whether the
~f project complies with applicable air pollution laws and regulations, including Chapters 173-
.400 (general air pollution) and 173-460 WAC (toxic air pollutants), 40 CFR Pan 60 (NSPS)
and 40 CFR Part 61 (NESHAPS).
~ ~ - - - r _ _ -
~
2. An environmental checklist will be required per thelState Environmental Policy Act. ~
3. Because the facility is considered a new source per Chapter 173-400 WAC, best
~ ~f Pr-nt#d on Rtcyrkd Payrr
r
available control technology is required to control emissions.
4. Calcium oxide (Iime) is a toxic air poflutant per Chapter 173-460 WAC, best avaitable
control technology for toxics (T-BACT) is reqwred to control emissions.
5. Unless the source is a Chapter 401 source as defined in Chapter 173-401 WAC, the
facility will be required to register with SCAPCA, will be subject to periodic inspections,
and will be required to pay an annual registration fee
6. If the source is a Chapter 401 source per Chapter 173-401 WAC, the facility will be
required to apply for and obtain an operating permit and operate within the requirements of
that permit. The source will be inspected periodically and be required to pay annual
operating permit fees.
Qce7. Ai r pollution regulations require that dust err~issions during demolition, construction and
vation projects be controlled. This may require the use of water sprays, tarps,
sprinklers or suspension of activity during certain weather conditions. Haul roads should
be paved when possible or treated and emissions from the transfer of earthen matenal
must be controlled as well as emissions from all other construction related activities.
8 easures must be taken to avoid the deposition of dirt and mud from unpaved surfaces
to paved surfaces. If/trackin or spills occur on paved surfaces, measures must be
taken immediately to clean these surfaces.
9. Debris generated as a result of this project must be disposed of by means other than
burning (i.e., construction waste, etc.).
10. We wish to confer with the applicant. Please contact at our office at (509) 456-4727
ext. 106.
11) Failure to meet SCAPCA regutations may result in delays, closure and civil,andlor
criminal sanctions.
Thank you for the opporturnty to review this proposal.
Sincerely,
SPOKANE COUNTY AIR POLLUTION
CONTROL AUTHORITY
Kelle R. Vigeland
Environmental Engineer
cc: John Larson
Bob Turner
Jim Millgard
file
S P O K A Nn C O U N T Y
DEI'ARTMENT OF BUILDINGS • A D1Y(S1QN OF THE Pt18UC WORKS DEP,ARTMENT
JAMES L MANSON C B O, D(RECTAR DENNIS M SCOTT P E, DIRECTOR
AMENDMENT
TO: Tim Murphy Jim McKenney
Robert E. Irwin Kathy Schultheis
Bill Cooper Larry Olson
Mark Murphy John Konen
FROM: Sherrie Wnght, Secretary
Division of Buildings
DA1'E: April 1, 1994
RE: Amendment to 3/23/94 Pr+e-Application Conference Summary
16310 E. Marietta, Central Pre-Mix
AMENDMENT TQ SUMMARY OF DEPARTMENTAL REQUIREMENTS:
1. ENGINEER'S DEPARTMENT - BOB TUrRNER
OTHER REQUIRED SUBMITTALS - Line 12 (Checklist)
Paving was not checked for Engineers.
CORRECTED COM]VIENT•
Paving should be checked for Engineers.
Please revise your summary accordingly. Should you have any questions or need additional
informanon, please feel free to concact me.
sw
cc: Dennis Scott, Public Works Director
Kelle Vigeland, Spokane County Air Poilution Control Authority
,
WEST 1026 BROADWAY • SPOKANE, WASHINGTON 99260 1 (509) 456-3675
FAX (50) 4564703
r .
BEFORETHE SPOKAfVE COUNTY SUBDIVISION ADMINISTRATOR
IN THE MATTER OF 81NOING ) FINDINGS OF FACT.
SITE PLAN NO. 8SP-87-17 ) COIVCUJSI4N AND DECISION
THIS MATTER, an application from Spokane industrial Park hes been recoived and
decided upon, pursuant to Spokane County Subdiviston regulations, on 1he 5th day
of Mayo 1988.
The indlvidual stgning below has funher been property delegated the
responsibility for rendering ihe decision by the Spokane County Oirector of
Planning.
FINDINGS OF FACT AND CONCUJStON
1. The proposal Is to divide 160 ecres into 46 lots for the development ot industrial
lots.
2. The proposal Is located In ihe north half ot Section 12. Township 25 North. Range
44 E.W.M., Spokane County, Washington, lying north of the railroad between
Suliivan and Flora Roads.
3. The current zoning of the property ts Manufacturing, established In 1960. The
proposed bt sizes, frontege end intended uses are allowed within thts zone.
4. The Spokane County Comprehensive Plan designates this area es Industrial. The
lots and uses proposed are generally In aooord with this planning category.
5. The requtred pubiic nogce was provided for this proposa! and egencies having a
potential tnterest In the proJect were notifled and asked for recommendations.
6. There was a recommendadon for a more deteiled environmentel review trom the
Spokane County Engineers. The sponsor and lhe Spokene County Engineers have
agreed upon necessary road improvements and phasing of devetopment to mklgate
potential improvements end phasing of development to mitigate potendal adverse
traffic impacts. A mttigated Determination of Nonslgniflcance Is substituted tor 1he
original D.N.S.. The miUgating measures reoommended by the Spokane County
Engineer's have been agreed upon by the sponsor to generaily reduce anticlpated
traffic impacts ot the proposal.
7. That In oonsfderation of the reoommended oonditions and Spokane County
development standards, the proposai is not detrimental to the publlc health, safety
and general welfare.
8. That the project !s proposed to heve phased development In ihree stepes with
necessary tmprovements constructed to meet the needs of each phase. Such phasing
is consistant with subdivision practices.
9. That the provlsions of the Manufacturing Zone and other sections of the Spokane
County Ioning Ordinance apply to the use of the tndividual lots.
DEClSfON
Based upon the above noted Findtngs of Fact. Binding Site Plan Application BSP-
87-17 is hereby APPROVED subject to conditions noted below which shall be
complied with by the appltcanl andlor sponsor prfor to flnalizatlon of ihe binding
site plan.
r
Findings for BSP•17•87
Page 2
CONniTinNS oF PPROVAL FOR BSP-87-17
That the bolow liste d aon*+itiQnQ of I~I_ Denartments nd Aaencies are bindinn uuon
th=apnlocant owner(s) of the oroeartv. helrs, suocessors Qr assians.
PLANNINQ DEPARTMENT CQNQITIONS:
1. The preltminary binding site plat of record approval is for the property legally
described In the application ior ihis proposal.
2. Thet the F1ne18inding Site Plan be designed substentialiy In oonformance with the
preilminary binding stte plat of reoord as legally described and advenlsed. No
increase of tot number shall occur without a new appltcation submtttal and
$pproval.
3. The Spokane County SubdivisiOn Admintstrator shall revfew any proposed Flnal
Binding Site Plan to insure oompliance with the FlndinAs and Conditions of
Approval.
4. That ihe preliminary btnding site plan be given oonditionel approval for three (3)
years to June 1. 1991. The applicant may request an Extenslon of Ttme by
submttting a written request forty-five (45) days prior to the above expiretion
date.
5. That e Final 8inding Site Plan number be fndicated before the Nnal binding site
plan is flled; such number to be epproved by ihe County Planning
DlrectoNDeslgnee.
6. That appropriate roed names be indlcated on the binding site plan.
7. That appropriate utility easements be indicated on oopies of the proposed flnal
binding site plan. Written approval of sald utility easements by sald utlllty
companles must be recelved wtih ihe submittal of the flnal binding site pian.
8. That 3 current certificates of tiile be turnished the County Plenning Depanment
prtor to fllinA the flnal btnding site plan.
9. That the following statement be placed In the final bindtng site plan dedication: "No
more than one primary use be ptaced on any Lot nor shall any lot be further
subdivided for ihe purpose ot creatinA additionai lots, ownerships, or buitdtng sttes
without first flltng a replat."
10. The final bindin0 site plan map shall indicate by a clear dashed line, the required
setbacks from all private, tract x or pubiic rosds. The dedicatlon shaii oontain a
statement that: "Stde yard and rear yerd setbacCCs shall be determtned at ihe time
buliding permits are requested. The setbadcs indlcated on this binding site plan
may be varied trom tf proper =onlng approvais are obtatned."
11. That a pien for weter fec111tles adequate tor domestic service and flre protectton be
approved by the weter supplier, flre protectlon district, Spokane County Buliding
& Safety Depertment and County health authorities. The aAencies wili certify on
the WATER PLAN, prlor to the fliing of the flnal binding site plan or any phase of
the preliminary bindtng site plan that the plan 1s In oonformance with thetr
respeciive needs and regulations. The WATER PLAN and certlAcation w111 be
drafted on a transparency suitable for reproduction and be stgned by the sponsor.
12. The punreyor wiil also certliy on the Weier Pian that appropriate contractuat
arrangements end schedule of improvements have been made wtth the sponsor for
oonstruction of ihe water system In aocordance wtth the approved WATER PLAN.
The time schedule for improvements will provtde for compledon of the water
system and inspection by the eppropdete health authorities prior to application
for building pernnits within ihe final binding site pian. The anangements or
agreements wlll include a provtslon holding Spokane County and the puNeyor
harmless trom clalms by any lot purchaser refused a building permii due to ihe
failure ot the sponsor to satisfactorily oomplete the approved water system.
~ • .
Findings for BSP-17-87
Page 3
13. The final piat dedication will oontain the fofiowing statement: "The public water
system, pursuent the WATER PLAN approved by County end Stete Health
auihorltfes, the locai flre district, County 8uilding & Safety Depanment, and
water purveyor, will be installed within thls binding site ptan, and the
subdlviderlsponsor will provide for individual domestic water service as weli as `
fire protection to each lot prlor to sale oi each loi and prior to issuence of e
buildtng permit for each lot "
14. That no building permit will be tssued for any lot wlthin the Final 6inding Site
Plan unlil cenifled by a Weshtngton State licensed engineer "that the water system
has been installed pursuant the approved WATER PLAN for the Finel 8inding Site
Plen•, stgned and stamped by said engineer.
15. That a survey is required prtor to the filing of a finel binding site pian.
COUNTY ENGINEER'S CQNDITiQNS
1. The County Enpineer has examined ihis development proposal and has determined
that the impact of ihis proposail upon the existing County Road 3ystem wtrrants the
dedicatlon of eddittonal RfBht of Way and the roadway improvements herein
speciffed. That oonditions of approval of the BtndinQ Site Plen by the County
Engineer is given subject to dedication of Right of Way and approvai of the road
sytem. In oonjunctlon with phesing of the flnal Binding Site Plans, specific
condltione appropriate to each phase will be specified.
2. The proposed 8indtng Slte Plan shall be tmproved to the standands set forth tn
Spokane County Boerd of Commissioners Resolution No. 80-1592, as amended,
which establishes reguladons for roads, approaches, drainege and fees in new
construction.
3. The applicant shall deed to spokane County 14' feet of the aubJect property for Road
Right ot Way along Sullivan Road and shall oonstruct an additional traHic lane along
Sullivan Road from Marietta Avenue northward to the tntersection of Eucild Avenue
realigned. Consiruction may be phased as development occurs along the Sullivan
Road frontage.
4. The appilcent shall deed to Spokane County 48' feet of Right of Way for Marietta
Avenue in the alignment as shown on the prellminary 8tnding Slte Plan.
5. All requlred improvemenis shaU oonform to the current State of Washington
standard speciflcatlons for roed end bridge oonstructton and other applicable
County standards end/or adopted resolutions pertaining to road standerds and
stormweter management in effect at the date of construction, unless otherwlse
approved by the Covnry Engineer.
6. Prior to the filing of each phase of the flnal binding site plan, appropriate plans,
profiles and cross secibns as detennlned by the County Enpineer for Sullivan Road.
Euclid Avenue and/or Martette Avenue showinD proposed street centeriine and curb
grades be subrnitted ior approvai; road plans to be prepared under the dlrecdon of
licensed professional Civii Engineer. Euclid Avenue road plans and improvement
are to tnclude full depth pavement design and constructton (tncludes extsting
travelwey connectlon to Flora Roac). Thai appropriate rosd drainage plans and
design calculations as determined by the County EnAineer showing the allgnment of
dralnage facllittes be submttted for epproval. Drainage plans to be prepered under
the direction of e Ilcensed professional Civll Engineer.
7. The appNcant shall submit tor approvel by the Spokane County Engineer prior to
the release of a building permit a surface water dlsposel plan for the buiiding site
or pohlon ihereof tf the development is phased.
8. Prior to the telease of a buildtng permii, a parking plan and traffic circulation
plan for each site shall be submitted end epproved by the Spokane County Engineer.
The design, lacation and arrangement of parking stalls shall be in accordance with
standard engineedng practices. Pavtng or surfactng as approved by the County
Engineer will be required for any portion of the project which is to bs axupied or
traveled by vehicles.
Findings for BSP-17-87
Page 4
9. Constructlon wlthin the existing or proposed public streets and easements shall be
performed under the direct supenrlslon of a licensed englneeNsurveyor, who shall
furnish the County Engineer with 'As Built" plens and a certiffcate In writing that
all improvements were installed to the Itnes and grades shown on the approved
constructlon pians and ihat all disturbed monuments have been replaced.
10. No oonstrucifon work is to be perforned wiihin the existing or proposed public
rioht oi way until a pemnit has been issued by the County Englneer. All work is
subJect to inspectton and approvai by the County Engineer.
11. All constfuction within the existing or proposed pubiic right of way Is to be
completed prior to filtng the flnal binding site plan or a bond In the amount
estimated by the County Engineer to oover the oost of oonstruction of
improvemenis, oonstruction certlficatton, "As Built" plans and monumenting the
street centeriines shall be filed with the County Eng nee .
12. The applicent shall construct Euclid Avenue and Marietta Avenue as shown on the
preliminary binding site plan es publtc roads. These roadways shall be oonslnucted
In compllance wtth the typical roadway cross sections designated and approved by
the County Engineer. A copy of those typical cross sections is attached for inclusion
in the "Conditions of Approval". All other roadwsys shown on the prellminary
binding site plan shall be privete roads.
13. The change in alignment end vacaaon of cuReni alignment of Euclid Avenue shall be
approved by the Board of County Commisstoners prlor to the fiting of the binding
site plan oontaining that perticular phase of the development.
~ ~ ~ g g ,r?~"...e-
14. In oon unctlon with the reali ~ment of Eucltd Avenue the applicanf is responsible
for the reoonstruciton of the existtng traflic signal system at the Sullivan Road and
realigned Evclid Road intersection and for the oonstruction of the entire additional
traffic lane on Sullivan Road.
15. In conjunctton with the requirements of Shon Plat 86-457 the applicant is
responsible for the future construciion of a new iraffic signal system at the
intersectton of Suilivan Road and Marietta Avenue when the tntersection meets
traffic engineering warrants for traffic stgnal oonstructlon.
16. Thet the minimum curb radli at all street intersecgons wlthin the proposal shall
be 30' feet. Minimum radii el Sullivan Road intersectlons shail be 40' feet.
17. To construct the road Improvements stated therein, the applicant may, with the
approval of the County Engineer, joln in and be a willinD participant in any
petition or resolution whfch purpose is the formation oi a Road Improvement
Distrlct (RID) for sald improvements pursuant to RCW 36.86, as amended. At
such time as an RID is created or any road improvement project is sanctioned by
Spokane County, the Improvements required (curbs, pathways, drainage oontrol,
paving, traffic signel systems, etc.) will be at the sole expense of the undersigned
owner, their heirs, grantees and assigns.
18. Should an RID be pursued. it shali be the responsibility of the appiicant to provide
road and dratnage plans sufficient for the creation of a Road Improvement District.
These plans shali be nrepared by a Iicensed professional civil engineer and shall be
prepared In compliance with Spokane County road standards and drainage
guidelines.
In order to oonstruct required roadway Improvements on Sullivan Road, Marietta
Avenue and Euclid Avenue the applicant may petition the Board of County
Commissloners to create a Road Improvement Distdct R.I.D. ' The RID must be
created by the Board of County Commisstoners prior to the fliing of the binding stte
ptan.
19. The foilowing statement shall appear on the binding slle plan document "Perking
will be prohibited along Euclid Avenue".
20 A statement shall be placed on the binding site plan doucment which prohlbits
direct access irom lots to Sullivan Road or Flora Road.
Findings for BSP-17-87
Page 5
21. Dlrect socess trom lots to Marietta Avenue and Euciid Avenue shall be Ilmited to the
access points approved by the County Engtneer and as shown on the preliminary
binding site plan.
22. A minimum 20' toot wide eesement shail be provided alono the east slde oi Sultivan
Road and each side of the public road riDht of way on Euclid Avenue and Marietta
Avenue. The purpose of the easement is to aocommodete pathways, lendscaping, and
drainage trom roadways.
23. A system of pethweys, aa:essible to the pubiic, be constructed along Sullivan Road,
Euclid Rosd and Marietta Avenue. The pathway is to be located wtthtn the oommon
pathway, dralnage and landscape easement area. That a statement shail be placed on
the btnding site plan permitting Spokane County to enter within the easement for
the purpose of drywell and sign maintenance. Snow removed from the public
roadways shall be permitted with the easement. Maintenance of pathways, drainage
sweles end landsceping areas shall be the responsibllty of the applicant.
24. The propased private roads as shown on the preliminary binding stte plan ere
approved by the Couniy EnDinesr.
25. The following statement must appear on the binding site plan dxument: "The
private roads as shown hereon are easements whk:h provide e meens of ingress and
egress ior those lots within the bindtng site plan heving froniage thereon."
26. Private road plans with connectlons to a public road are the responsibility of the
developer aRd are requtred prlor to the release ot a butiding perm". A statement to
this effect shall be placed In the btnding site plan document.
27. Prlvate roads be Improved to a minimum tmproved surface wtdth of 30' feet wilh a
minimum 20' foot wtde lendsceping and dratnage easement on either side of the
roadway. Subject to approval under section 10.207 of the Spokane County Fire
Coda.
28. All vested owners shall sign and reoord private road documenis as prescribed by
the Spokane County Engineer. These documents shall be reviewed and approved by
the Spokane County Engineer prtor to reoording with the Spokane County Auditor.
Reoording numbers shall be reterenced on the binding site plan document.
29. The following statement shail be piaced on the btnding stte plan documenl:
"WARNING: Spokane County has no responslbility to build. Improve, malntatn or
other wise service the private roads oontained within or providing service to the
property described in thts binding site plan. 6y acxepting this binding site plan or
subsequentty by aliowing a building permit to be issued on property on a private
road, Spokane County assumes no obiigatton for said private road and the owners
hereby adcnowtedge that the County has no obilgation of any kind or nature
whatsoever to establish, exemine, survey, construct, alter,, repair, improve,
matntain, 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 helrs,
successors or assigns including the obligatlon to participate in the maintenance of
the prlvate road es provided herein.
30. The followinp statement shall be piaced on each phase of the binding site plan: "The
owner(s) or successor(s) In interest agree to authorize the County to place their
neme(s) on e petitlon ior the tormatlon of e Road Improvement District (RID) by
the petitton method pursuant to Chapter 36.88 RCW, which petition includes the
owner(s) property, and funher not to object, by the signtng of a ballot, the
fomnation of a RID by the resolution meihod pursuant to Chapter 36.88 RCWI
which resolution includes the owner(s) property. If a RID is formed by either the
petition or resolutlon method, as provtded for in Chapter 36.88 RCW, the
owner(s) or suocessor(s) further agree: (1) that the Improvements or
constructton 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, togelher with the amount of any County participation, exceeds the cost and
expense of formation ot the RID, and (3) that the property wiihin the proposed RID
ls sufficienUy developed. Provided, furiher, the owner(s) or successor(s) shall
retain the rlght, as authorized under RCW 36.88.090, the object to any
assessment(s) on the propeny as a result of the Improvements called for in
~ • •
Findings for BSP-17-87
Page 6
conjuncilon with the formatlon of a RID by either petltion or resolution method
under Chapter 36.88 RCW.
COUNTY HEALTH D13TRiCT CONDITIONS
1. A oombined surface water and sewage dlsposal detailed plan shall be approved by
the County Engtneer and the Spokane County Health Distrlct prior to the issuance of
any on-site sswa9e disposal permlt or building permit for ihis project.
2. Sewage disposal method shall be as authorized by the Director of UtiliUes, Spokane
County.
3. Water service shall be coordlnated ihrough the Director of UUlities. Spokane
County.
4. Water service shall be by an existtnD pubfic water supply when epproved by the
Replonal Engtneer (Spokane), State Oepartment ot Sodel & Health Services.
5. Prior to flilnp the Rnal plat, the sponsor shall present evidence that the plat Iles
within the reoorded service aree of the water system proposed to serve the plat.
6. A pubitc sewer system wnl be mede available for the project and Individual service
will be provtded to each lot prlor to sele. Use of individual on-site sewage disposal
systems shall noi be euthorized.
7. A statement shall be placed in the dedicaNon to 1he eKect ihal: "A publlc sewer
system will be mede available for the project and individuel service will be
provided to each tot prior to sale. Use of Individual on-site sewage system shall not
be authorized "
8. The dedicatory language on the plat shail state: "Use of prhrate welis and weter
systems is prohibited."
9. The plat dedlcation will oontain s statement to the effect that: "The public water
system as approved by County snd State heelth euthorities and the Ixal fire
district and purveyor will be installed wtthin this piat, and the subdivider will
provlde for tndividual domestic water service as well as tire protection to each lot
prior to sale of each lot "
COUNTY UTILtTIES DEPARTMENT GONDITIQNS
1. The dedicatton shall state: 'The owner(s) or Successor(s) In interest agree to
aulhorize ihe County to place their name(s) on a petitlon for the tormaiton of ULID
by petition method pursuant to RCW 36.94 which the petttion includes the
Owner(s) property and further not to object by the signing ot a protest petttion
egainst the formation of a ULID by resolutbn meihod pursuant to FiCW Chapter
36.94 which tncludes the Owner(s) property. PROVIOED, this condition shall not
prohlbit the owner(s) or suocessor(s) from objection to any essessment(s) on the
property as a result of Improvements called for in conjunction wlth the fornnation
of a ULID by elther petition or resolutlon method under RCW Chapter 36.94".
2. Any water service for this project shell be provtded in aooordance with the
Coordlnated Water System Pien for Spokene County, as amended.
3. Project will oonnect to existing park Sewer Svstem. Review and inspscUon of the
sewer pians will be the responslbiltty of the applicant.
BUILDING & SAFETY DEPARTMENT CONDITlONS
1. The requlred fire flow ior any bulidtng or property development Is determined by
buiidtna size, type of oonstruction, and proximlty of exposures. Required flre
tlows shall be based on an evaluatton of each building at the time of building permit
application.
2. Project is Iocated within Fire Distrtct No. 1. The requtred flre flow is determined
by the dlstrict.
1
r
~ • ~
Findings for BSP-17-87
Page 7
3. Fire hydrants for oommercial and industdal bulidln8s shall be located so that no
portion of the buiiding exterlor is more ihan 175' feet from the hydrant.
4. Fire hydrents shall be bcated so es to be accessible to fire apparatus and not be
obstructed by any siructure or vegetaiion or have the visibility impaired for a
distance of fifiy feet in the dlrection of vehtcular approach to the hydrant.
5. Speciflc location of hydrents shall be determtned by the Fire District.
6. The applicant shall provlde veriflcation from the Fire District to the Department
of Building and Safety lhat provisions heve been mede for adequate flre protection
prior to the release of building permits.
DEPARTMENT OF ECOLOQY
1. A new water rIght epplicaiion tor eny new wells will probably be required for this
project. Please oontact Mr. Rynear R. Huffman (509-456-6199) of Ecoiogy's
Eastern Regional Office for fuhher tntormation.
DEPARTMENT OF SOCIAL AND NEALTH SERVICES
1. Water main extensioNwater system expansions require the applicant to complete a
Water System Plan and submit plans and speclflcations for approval before `
construction of the proposed water mains.
Approved on 5 day of , 1888.
~
,
DOUGI.A~S
Subdivision Administrator
M County Ertgfneer
County Utlllties
County Heslth District
County Buildtng & Salety
Sponsor
Surveyor
File
Panies of Record
TRANSMITTNU
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RECFlVF0'-,
DN1D EMM ASSOCU►TES, INC. ~
A PRDOf~.SSION cEs ooNSUU,NC Rnw+ JUN 2 41994 .
OFFtaS M OMON, WASHINCInN, CAUAORNll1 AND ARI7ANA
WF.ST 110 CATALDO sPOx~,wnst~t~crocv~~o~ , SPQ!(At9E C4lINTY tNGINEER
(509) 3274697 FAX (i09) 327•1345
Ce al Pre"Mix Concrete Company
Dry Mix FAcility and
Concrete Block Production Plant
16310 E. Marietta
Drainage Report and Site Plan
DEA Project #CPMX4008
May 27, 1994
Revised: June 23, 1994
4 - ~Q 2MO
~~s~ F~►STi~►~~~~~~ `
NAL ~
EXPIRES /,4,/fA
Prepared for:
Central Pre-Mix Concrete Company
P.O. Box 3366
Spokane, Washington 99220 0L
Prepared by:
DAVID EvANs AND ASSOaATES, INC. West 110 Cataldo
Spokane, i'Vasltington 99201
TABLE OF CONTEN'I'S
Y,I'EM PAGE
Surnmary 1
~ Pre-Development Basins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Post Development Basins . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . 11
Basin POS'I'DEV 1 : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-16
Basin POSTDEV 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 ZZ
Basin POSI'DEV 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-31
Basin POS'I'DEV 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-39
Basin POvSTDEV' S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-49
Enclosures:
Pre-Development Basins . . . . . . . . . . . . . . . . . . . . . . Sheet 1
Post-Development Basins . . . . . . . . . . . . . . . . . . . . . . . Sheet 2
Site Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sheet 3
Grading & Drainage Plan . . . . . . . . . . . . . . . . . . . . . . . Sheet 4
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Garrison Series
The Gnrrsson series is made up of somewhat eacessirejr
drnined. gmQeUr or stonr soils thnL formed under grass
in glacial oucwash miaed in the npger part Rit1i ralc.anic
nsli. These soils are on nearlv level to moderately steep
terraces. The annval precigitation is 18 to 22 inc.hes, and
the frost-free saon is about I i 0 dars.
Soils of the Carrison series nre used for a carietv o#
.
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Garriso_~vellr loam 0 to 5 ercent swe'r (GqAL
ls ~daaminant soiiin e po • eea~sti o
the citp of Spokane. Most slopes are betveen 2. and 3
percent. Represeatative profile:
0 to 35 tnches. black, very lr3able gravelly laam ; graanlar
sLraCtare; sugbtlr acIB.
W frleble rers gravell Ioam •
to 60 iaches nool~o ► ~08raa ca b esLoaes.,
The surface colors wlien moist, ran=~ from rer~- darb
brorc-n to blacl~. The testure of tbe surface laver is gra1--
ellc or rerc gmve11y lo:un or silt loam. The subsoilrangu
in color from darl: brown to rellomsh brorcn. Clay und
luae liare accunulaced on tlie bottom cf the pebbles in tLe
]ower subsotl. The depth to the rravel subscrazum ranges
from 30 Lu 35 inches. _U xnuch us 10yercent uf soIDe suvAs
consiscs of Bong or Phoebe soils or of other Garrmn soils.
Tlu-e soil is somewbat eacessicelv drained aDd lias niod-
eratelr rapid perYaeabihtc. It liolds al>out 3 incbes of
water that plants can use. It is ea,• to worb. R-oots
rhie etrate to the larer of sand. gravel: and cobblestoaes.
fertilicr is mec*bnm. Surface runoff is sloR, and the
hazard ot erosion n 1hght.
About 60 percent of the acreagre is culurated; the rest is
used for grung, aud as farmstea,ds or snburban jots.
Most of the acre~e is irripted. Irrigated aseas are ussd
for orchard fr~ut~ and berries: cabbage, corn, caatarloup.
cucumbers, celer,c. and squa&: wbeat oats. and barler .
alfalfa for huT : and for seed and pu~~zure. Drrland
u
areas are nsea for ~AeaL barlec aad nasave bunchgra~
There is no difficultr in the ~ise of ~nachxne4;c, but the
gmvel is 11ard on tillare innplements. All crops eacepc
Iegnmes respond to nitraLven. Some crops respond to
sulfiu, boron. aud pbosphorus. { Capabilbcr uiut III..~-3 :
Loamr raa~e mte : not m awoodland group }
Garrison grsveily loam, 5 to ?A perceet slopes (Ga91-
This soil hag a surface lACer 3 to 3 inches tbinner thAn rbnt
of Garrison sravellT loaan, 0 to b percxnt slopes. Runoff
ls mediwn. and the eromon hnzsrd is modernte.
T'bis soil is used m much the same Rav as Gsurison
Rm rell~ loatn. 0 to 3percent slopes. f Ca~biUty iuut
e--5: Loamr range mte; not in awoodlaad group)
Carr, ~san ver~► gravellv loaai, 0 to 8 percent slopes
(GmB). This soil has n thvaner. inore grarellc snrface laQer
than Garrisoa .grace1lT )oam. 0 to 3 Percen►t slopes. Rnd
holds lew than 3 mches of 'water tliat plants can u..ce. The
grn+Rel canses estreme Ra►r on tilla~re machuaerT. ~s
mnch ns 'i' percent of sorae nreas consists of otlier Gnrrison
soils. ( Csi pnbilitr unit IVe-3 = Shnllor range sice; not
ia A waodlund gronp)
Garrison very stony loam, 0 to 20 percent slopes
(GnBi•-T}us soil bolds leSS t„han 3 inches of water that
plaats can use, and uIs too stonTto be cultati-aTed. _Ls
mnch n513 percent of some araas consists of other Gwison
soils, and as muGb as 2 percent is mnde np of gmite
ontc,ro
Th~~~sal is used for ,.o*razing. (Capabilitr unit rI..-2:
Sha11ow rang+e mte : not in awoodlnnd group)
wowowo
BOWSTF,INv METHOD (TEN YEAR STOPM DESIrN) PROJECT: GPMXOOOB
DETE!'JT I ON $AS IN DES I GN BAS I N: F'RET EVl.
DES I UNER OLSON{
I,lUMBER QF D1=;YWELLS F'ROF'OSED DATE: :5-May-134
h Szngle 'typ 0 Duuble ttype g%
Total Area fca1c. 7 (sep- H1 ) 4. C12
rime ot Conc. (calc. ) fsee H1 i, :'1, 18
CompGSite "L" (,_a1 c.~ (see M1 ) 0 6
Tirne of Con_. (mxn) t?.1~
Area CArres.► 4- O--
ia' Factor 4.426
Impervious Area tsq. ft. a 0
VoI ume Prinv ide1 ?08: 0 st -nr m ~ 0
Out flow tcfs > 0
Ar ea * C" Fac tor 1.04
# 1 #2 # ; #4 #%j #a #-7
TimP Time intensity V dev. V in V t-nut Stc-rage
Inc. Inc.
imxn. y {sec. i (anr /hr tcfs) tt. ) (cu. ft,, ,tr-Lt. ft» s
(A*f.. *#3) C Ol.lt f » y (#~-#Gl
~ . 1. ~ -"171.~ . 70 1.45 .L~6 8 0. 0("1 ~,I F C,
~
5 300 37. 16
10 ~J~..1Q y4 16 I1
L !"'J '306 1. + i 1.84 a.r. 2 r_)
i i oV 1.45 1.51 4. i. 55 t f 21 4 25
~..~.1 5("10 1 r r. 1 ~ r A..C r.4vl 1 `
;e0f_i 1. 04 1.08 .=Z- 14
y} C L r'9 0 t r 9 1 a.) .95 L, v 6 0 G 31';E
..J J .
4~'.3 2x 0.85 °?4z 5 .c:4 15
4 .J 2 / 0C' ~.i w ~ 4 ' 0 • ~ ~ ~ a 0 ~a 2410
..'.~0 ;t=1i a(7) 11)« 6$ U » -71 2`427 c+ 21•427
5..i v~~_fc ~.t. 0. 2484 f 1 2484
- ~ c _r ~
+:~t' ~ E tit3 0.61 0.63 ".~.'..vs. c <
l ~ 39cl~J w 6~ ~ .62 2703 0 .~703
70 4+:00 0.58 0.60 y.?94 0 , ` J"34
75 4500 56 ~J. 58 '87: 0 .~37:
8t7 4804? 0.53 0.55 .2;384 0 -1884
5 51)(7) 0.52 0.54 0
'90 5400 0.50 0.52 3Ca12 3 n
'a 5 5700 o.49 0.51 312-15 t_) 31
1oo 6t:►c3o 0. 48 0.50 3211 ta 331 2 1 l
nPAINAGE F'0ND CALCULAT I OR15
F:equirked grassy swale ponti ~~~~raqe volume
= xnper~,zr►us Area . .5 in. / 12 Zn. "ft. = U_u. ft»
prov.ded. C =-_u. pt.
0PYWEI..I.,_ PEOU I REi"0EN"i"S - 10 YE4R DE,~'-~' IGN STOPM
Maxlmum storaqe requzfeo by HowsLrirrg _ 3211 cu4 ft.
~
TIME OF GONCENTRATION (minutes)
Tc (overl and) Tc (qutter ) Areas "G"
Ct = 0.15 ~..2 = 1J ~~rQ ~NYis r 3.77 l`~. . ~J
Z l - O .r.Y!' : 0.08 0.130
L I(1"i ) ~ 795 Z 2 = 0 4A ral• 0.17 0.15
N(A) 0.4 R , 0 0.00 0.00
S(A ) = 0 . 006 3 n = 4 0.00 0.00
s = 0 0»00 0.00
i
Tc (A) _ ~t . 18 d = 0 0.00 U. 00
Tot al A Comp "i_ "
L1 (B) - TL (qu) - 0.00 4. cy2 0. -:6
NkB) = 0 Tc (A+&) _ .~1» 18
S(S) = 0 2.45
Tc(tot. ) ::i d 18 Q(zst. 0. V1-'
Tc (B) = i). Ca Intensity 1. ~9
A =
WF' = EPP,
P = EF'P
V = Ef; P
Tc t tota1) = T:: (over 1 and) Tc (qutter) Tc(gu,- ERP
To_ ►'overl~.~nc1) - L:t*(L1*hl/S`0.5~1``0.6) Dsest ) _ E r~F,
I:t = ti.1~
Ll = Leng th ~ Over 1 and Flow Hc+l ri 1nq
N-Ir1+r t'l on ract,..s~' l -;`i L F 1 a{`1 d f lJ W (.4 'F oi°' ti: i''~ J Q Es Q C' 3s:g cc.v C f' )
S = averave s1 ope of -,tver land f ? ow
To_ (guttero Lenqth 4ft. )n Uelo,:;.ty ~ofi-W,
P= Bottom width Cf gut'-~r or ditcn
Zf - inversp- -.+f cross s1~~~e one 1.:1- ditcli
7..... _in ver=e _ r cr ossz:4.iR e two c-17 d itch
d = deptFi r_if r Low in gLttter testim.:,te, chef-l, wit;h Fi.,-iw~ '
Area d*B'}'dA Z/',.. L 1 '{'Z i }
Wetted perxmeter = ~*d+(1 *einCatni1 /zi, )+1!stnt,atn'i 'Z4--' 11
Hydr~ aul ic PA1i as _ P = Rrea,'Wetted ~'erzmPaer
velVclty -
F1 c-w = Ve1oci ty*Ar ea
n= 0.016 for asphal t
s= 1oconA Ltudinal sl oRe of gutter
(O
WGWoWnWO
BnWSTF:ING METHOD (TEN YEAF, STORM DESIGN) RROJECT; CF'MXOOO8
DETENTION BRSIN DESiGN &ASIN: PREDEV2
DESIUNEP OLSOhI
` NUMbEf►' OF DRYWELLS F'F'OPC35ED DATE : '5-May-94
0 Singl e ttyp d Daubl e(type B)
Tatal Area 4ca1c. a (see Hi) 4.41
Time of CGnc. (cal_. ) (see H1) 18.54
i_omposite "C" c`21►_. a Csee Hla 0.25
Time +:,f C'..nc n<min7 18.54
Area (A+,rer) 4.41
Cp Fact or 0.25
Tmperviou« Area (sq. Tt d~ 0
Volume Prrvided 20a: a storm: 0
Out flow 6: fs) 0
Area * L" Factor 1.10
#1 #4 #5 #6 #7
Time Time Intenst Fy Q dev. V in V`ut Storaqe
Ini= , tn,_ .
Cmin. ? csec. ) und ihr. T ;c fs; tcu, ft. (cu. f t. L r_u» ft p%
~~C 34)
18.50 t 1122. 5L 1.54 1.7t) 2537 Cl. ~.~j, 2, J..3 I?
3C~~~ 3.18 3 . ~ 1 1409 ri 14 03
i u 600 21» Z4 4-7 ! 1'~8 6
15 '3~'.~tj ' . 7- 1 .95 5 3 Q 2 1%." 1 El 12
o 4
1200 1.45 .L n6tiJ 1~5 +re:/ C) 2 5+:3
1500 1 . 21 1 ■ 3 3 ~4'~) Ei 0 5 J0 i:~
~0 1300 1.04 1.15 A-'~'~v
.~~s . 1 ()r..-1 C! • _I 1. `.J~~ ~486 L• ...4 Iq r'.Y e-I
2400 0.82 11 .90 J U 5 t
45 :'70i ) 0.74 0. 8:' ?..5 ~1 i I I
;,Ej000 0.66 0• 75 -JJ3
53 3^rl~;~ 64 0.71 ~5915 ~..c.~',:`
0 4 .I 0 L 0.61 Cod 07 21 6 7 5 1) .,:.675
0
' 6~5 33c~C 0. 6:) t~. 6b y8
7l! 4200 0.58 0.64 0 2928
75 4500 0.56 0.62 3012 0 301'
8C) 4800 0. 5~ 0.58 3025 0 30 r'6
85 51a1C! 0. L.S7 2? 141 C-1 3t4l
90 5400 0.50 0.55 3185 0 31+35
95 5700 0.49 0 . 155 4 3284 3-84
100 6000 0.48 0.53 3375 0 39 2-3 7 5
DRfl I NAGE F't]ND CALCLlLAT I ONS
Pequired gr assy swal e pond storage vol ume
_[mFzrvious Area : .5 in. 1 iy in. ift._ CLi. rt.
pr>>v ided: s? cu. f t,
DF'`(WELL FEC1..17 F:EMENTS - 10 `!CAP D'ES I GN ST7Ply!
Max .►nUm storage rQquired by Bt~+wstr3nq ~ ~375 cL4. Ft.
7
'
TIME DF rOh}C ENTRAT I ON ( m inut es )
Tc (overland) Tc (qutter) Areas
Ct = 0.15 L2 = 4 i1/a~u ra f 4.41 0.25
Zf = 0 0.00 0.00
L i (a ) = 6E5 = Cj 0.00 0.00
NtAy = 0.4 B = 0 0.00 0e00
6(A7 = O. t1u75A--" n = 0 0.00 G. 0o
s = a 0.00 0.00
Tc (A) = 18.54 d = 0 0.00 C), 00
Tot al A Cnmp "C"
LI (g ) _ 0 Tc (gu) = 0.00 N(B) = 0 Tc (A+g) = 13.54
s(B) 0 G=C# 1*A= 1.70
l'c(t at 18.54 Q(est = 0.00
Tc (B) ~ 0. 0 Sntens z+y 1.54
WF' = ERP
P, = EFtR
U = E~'-F'
'"c: t tot al Tc (civar 1and ) } Tc kqut i' s-z~' c To, c qu a= ERR
Tc toverlard" _ Ct#(L1#hliS'0.5)f0.6► o(est) = EF'F'
Ct = ca.l5
L1 = Ler;qth of Over 1and F1 ow HoDI dzng °
N - f1'' 1 cf 2 oF 1 1' ac'f or of i,;. vePlaf Id f.. -ri,, f.4 f-_tC a`f s. ct gC
S=ave,° age =1 ope ofi -aver1and f 1 ow
To= fguttsr, _ I-pngti'i (ft:)/VeIocit;,r ►.f~.~'.~~~ .';/~ca
B _ E+ottr,m w_sJth of qut,`er :,r ditch
?1 = inrerst- --.f cross s10PE"3 onP of d:t-_h
- 1 nve r_ e :of crc-► s:n T ditt ts
d - deptN of f3n-w in gu~~ar restimi;te. o:`ieQ_k estamatc wxtr FX,_•w
CYrea d*?'Ld
Wettec: perxmeter =
Hyd r au1 .Lc Rad i us = P =Ar ea.,We4teS.J Fer i tnet er
L'eloc1 t y = 1, 4So, r; *F''r 66?*s'a 5
F1 ow = Vel oc x ty*Ar ea
n = v. 016 for asphal t
s = lortgitudinal s1ope qutter
~
BG1►1STF: Z Nv 'hETHt7D (FI P*TY 'YEAP aTOPM DESI l3N) F ROJECT : ir r
DETEhIT I Ch} BF;5 T N DESISN ?RS 1 N: F' Y:-: )E'J 3
DES z GNEF OL3-Ze1'!
fUUMBE OF D► `!WELL.C., F'ROPaSCD DP; TE :
C) .3 L 1 IqI Lz ` } l P' 0 -OC~A::y R? ~r ~'rTJ„C 13
T~ ~t.~_ A: e ~ :~_a1 ~ (sea H i, 7-2
T:._--T 7♦~ ~ (see Ni ) 8 ~
~1~C • .~~~r~~w G~4.r ~ •
'_arnpostt'] "C" (CS1C. ) ~sL? HI
Yz,n~ :j4 il_nC. cmin`< 24.83
Ar f Ac 1'n+_
F31_t.LY C1.~'_J
' L
ts.q. fc.
l,-inLz F,r :)v:dea c~
Gu't f loW : c F sj
Hr e a raC Ce--r u.19 :
t 7-: 6.x
~ ~mc- TimF :n~en_i tC Ceq. I r L' Sz,_r~gc-
i -8c. :-I i.: .
,.r• • h1 n 3 i 'S-E 1 1-;~ r- 1 r» , 1 :1-1.
E. !
~"1' M 1Z :)G 1.57 ~
~ ~ ~ ! ~ w" ♦ ~ ~ ~ r e~ 4
~ - n' C
T ~ t ...f e..
Z ~.i! ° ~
-t- ~ _~'~r.~ ~ : r x7~ ~ ~ -
. ~ C1' y t ' r r,
_ a. ? ~ e , • L r ^ ~ ~.1~..
~ ~ ~ ~ t ~ • 32~~Afi,
C PJ - .
1 ~ a~
^ 2i
- - r ^1~~ ~ r
~ j~
~J r
~ J r~~ 3'J ~ w j.t • ~
~y». f "1 C
"1' ~ C e i . ~ ~ L,
~ .Jr c~t~~ E 7
-t ~ a.. ~ ~ • !f
E Y ( ~ • - 2
?c `1# I y
11 . _ ~ . / • ~ _ ~ ~
r~ ' • ~ ~ ~ - :.•1~w , ~ r'd'
11.~ J • . _ ~ _ ~ ~ C
-7:! ~S Ef0 _ .'.~is t3
.
E0 }(r 1) u C'J7, 60 r.1 4 t_,--
~r~ i r!~ ;~'aE oriD
r"L=qU i i' ec.J. sWc"t .t pcfid 5t-O fag°`,_.► ,.4R .3
- A., tT1Y / IZ L Iw ~ 3~ ~ ~ ~.1 T~ f
'_3' 3sSy rsW•3 lL p_ird ~ics_ uttlr? r-tv_ dr?,~ - f t .
yWL-,_ RECU I REMENITS - € ~ ) YEar- Z'a CF,M
~ ~ t o ~ 1111 S ti ~ age sR Iwi='~' 6- Z~• tir
.s J~ 1 ~ VF ~ l•
9
4 I ME OF CEtJTPAT IC3h! ~ m z n LRt esy
"rc { uver1and} Tc (gut*. er ► Ar r?as "l:"
~ - ~3• 15 f_..:: = 370 1104N/'a1 3. 73 C. . _.J
06 0. l>c) ~ ► r ►.t
L i(A i 4,; ~ D 26. C► i 0. ILI~)
N" 0 0 ..)0 r i c
r _ r+ t
Ci 1' I"t F_ . (.1:' 0 . C# t
s 0035 0. 00 QQ
Aa 13 . : ' c a . 325 t"► , 06
A C
T t_ ':1 7 t:l . :'_!f
!V ~ B' T ti L r,4-F- 5 = i ~J. '32
=r. Bi
Tr C - i
J►J . J ~.7t 11 ~ ~ 11 V a
I rS► = t~~ ~J►rt~Lf;ti"1~,~° 1. Gc~
A
a
l ) t r. ~ ~ ►
N
a I 7d
~
1 ~ ~ ` M~ ~ •1 ~ 1 ~ `i ~ y C NI Y r
r. V ~ Yr • r ~
W
rt 7 1 ~ ~ ~ _~1 I A,.r i ' ~J1►t~ ? ?li~d V f,Y
T ~ ~ L " • ~ ~ ~ i l ~ W i s ~ / ~A ti"~ .1 ~11~ ~ ~ I e ~ t~ ~ ~ ~ ~ f,~~
_ ♦
T.. t
1..4~ " 1'.? tit
~
a - - • i~, =i; ~P" _ -ct s- ~ =As1, :.it : rc-. ~isL 1m.3te"
r"~i r _~Ti-'~'~ = i~•~ s i n A : 1- ~ i _ y ~ Z _
~-v d Y t v J P -m cJ (Ll` eti 'iN `7 tri aLi -z7 r ~ 4in eti ~ r
`.z I 1•-tC6 r k P • i G, 7t5
=low tiel oc 1-t j/-F,rea
,
r
/ ~
'b E. ~ z r _ ^ _ _ _ _ _ ~ , _ - - - - _ ► _ ~ ~ ~ ~ . _ - . ~ ~ _A _ _ _
OI
I
Z-7
C ~
_ a ~ . _ 7 ~ • _ ~ ~ . ~ • ~
~ -
~ -
fS,;
- - -
4vr%_ ~
- ~H..~, ~ A ~ •
• ~ _ _ _ ~
u ,
w ~ .~r~
~
i
~
_ ~ . ~ ~ ~ ~ ~ _ ~ - ~ ~ ~
~
' L ~ = o _f
.
U f I I I~ 1 I I I L7 ! i ~ I
~1
I l ~ 4 ° ' ' I ~ I• I f ~ ~4 1 I
I ~ , ~ , ► ~ ~ ; ~ ~ ; ~ ; r ~ i ~ i r7l
.144
~ 1 ~ ~ ~ _ ~ ~ ► ~ I
° ' 1~~I I_ ~ I I I I' !
l I ~ ~ ~ ~ ' i ' ~ , ~ ► ' I ~ ~ ~ ~
~ ~ ► I f ~ I I l~ 1 1 1 , l i
.~9 I
J l ! I I ~ I R ~ ~ rl ~ I 1.3
~@ !`l
~ a i I I ~ 1~ I~
! ~ 1 I M I 1, I l
'
e 1 I i~ T
( ! ~ I ~ 1'~ ' , I l ~ ~ ~ , r 1 ,
Li I I !
AOV
~1-
' ~ ~ i ~ 1 ~ ► ~ i ~ I ~ 1 ~ ~
~ ~ ~"y ~ • ~ ` 1 -r` ' ~ ~ : ~.1► ~ ' ' ~ ~4/~ ~ 1 .
~ ~ . ~ _ ~ C~ - L►
~
.
~e
l
eLo
'9-~ ' ' i o E 1 I~ ~ t ~ ~ r►~~ ~
, i 1 p ! ~ ~ ~ ~ ~ ~ ~ ~ : ~ ~ , r W ~
010i d ~
~
,
. , ► ~ ~ „ ~ ~ ~ 3 I I ~ " r
~ L.E~____► ' ' ....~e ~ I I re ~ ~ ~ 22.000.
~
~ .
R woe-J'n?
, ~
1~~. i
~
1 j ~ a I I ~ f 1 I ~ i
.4 r ~i, ~
, ~ ald o
,
~ji ~
I ~ ~ t ~ , i ~ ~ ~ , ~ d l , 1 ~ ! ~ ~ d
i[- AVe 6 ° ~ ~
i } 5
dI
1 I
► ~ ~ ~ ~ T'~~~'
i
As c ~ ~ ~~i~ ~ /P~ .'a
- - -
10iect j c. r ~
Date_ JN hG dZ3
"T ~J ~,J.... DAVm EvAvs AND ASSOCtATES, llvc.
~ ~
WOWUW~'~Wh
POWSTPr NG METHOD t TEN YEAR STOF;M DES IGN > PROJEGT : CPhiXOOO8
DeTEhJT I Ohl RAS S N DES IGN &AS I N: F'QSTDEV 1
1DES IrPJEfi OLSONt
IVUMBER QF DRYWELLS FROPOSED DATE: 30-Jun-94
v Single ttyp i Dc►ub].a (type g)
T~tal Area (calc.) (see Hi) 1.51
Time -_-f rORL r tcal c.? (see H1 ) 5.00
Compasite "C" tcalr.. a Csee H1.► 0.68
Time of Conc.(mzn ) 5.00
Ar Aa (Acr es ) 1.6096
C' Fact ~~r 0.68
ImperviGus 4rea csq. ft. ) 4 4331 2•5
Vol ume Pr ov ided 208: 11978 st cr -ns 4.2$5
OLtt f1 ow ( cf s) t
Ar ea * t_ " Fact or 1.09
~t 1 #2 ##3 #4 #5 #6 #7
Time Time Intensxty Q dev. V i n Vout StoragE
Inc. Inc.
(mxn.) ~.sec, ~ (in. rhr. ) kcfs) rC LR. fi~a ~ ~:.Lt. it . > (C u. f t . J
1*FiV ) L A*C*#w. )
Sr 0(..) 50 0 0 . S1~J 3 • i ' 3.48 1396 .it 1T~ • 0 LI 10~~S
J J~jO 3. 1 e 3.48 ~ 39E .J0(.> t Q,
I C. 6T.C~ r. r .~4 4sJ ! 7.~.~ v~ ~1 1 7
15 900 1.77 1.94 1 34%--t t"r 1 C14, ,
1200 1.45 1. 5': woET. i ~.0 t) OEE-5
1500 1.' 1 1.32 1 2- t a 1500 E:rr)
Z64
3i) 1800 1.04 1.114 Y a4 1P, (7) 0
:35 .=1 t7C'i .r . 1 1.00 :1 3Z ~ 1 9-*
4IJ 21 4 (.)(J 1 1 • 82 ~ 3 • ~r._...44 ...4 C" o -156
4...t 2700 d ) . 74 0.81 2168 s' 0«
5 Ci 30~* 00 53 0.74 =3CJ7 ^0 0 ri --b'? ^
J
55 "3000 0.64 0. 70 ~1381 311210 0 -9 i 1:,
6O 3600 0.61 0.67 ~4 70 0
65 3900 0. C r) f). 66 .16: 5 -1-74
70 4 :'O0 0.38 0.63 27-1-19 J^_-1471
7; 4500 0.56 0.61 28113 4500 -1681
80 4800 0.53 0. 58 2 174i 4800 - 1958
8.~.~ 51 Ot.J 1). 5r.. 0.57 ._'j ,.J 9 51(1 l ! ` 21-4Z
.~t / 5~.Q0 ~e~ 55 ~c$c~~~ ~a~~~~~ i
5700 4'3 5~ 11 i~'~ ~~C'E:~
1 ac:l 6000 0.48 r') . s` ^Z n~ S000 _~,96
DPA I tUAGE F'OND CALLULAT I OTIS
Raquired grassy swale p>>nd storaqe va].ume
~ Impervious Area -1 r5 in. / 1~ in.Oft. = 1347 cu. ft.
provzded: 19:8 cu. f t.
DF vWELL REQUI~EMENTS - 10 YEAR DESIGN STORM
Ma:;imum storare required by Fr+wstrincZ = 1'1.20 cu. =t.
G1Y'oVlded. 4 -'-Z 95 cu, ft.
~3
TIME OF CONrENTRATION tminutesa
Tc Cover 1 and a Tc (ctut t er ) Ar eas
C.t = 0.15 L ~ = 50 rODT C► . 07 C). 90
Z 1 ^ 7 r o ss 0.03 0.15
L 1 (A ) = 1.25 ~ 2 " 68 pAvt wrM4 1. 02 0.190
N(A) = 0•016 ~ ~ 0 y - devio I k 0•05 'Vr 7`1
S(A) = 0.0116 n = 0.016 sGQPe 0,45 0.15
s = 0.01 0.00 0.00
Tc (A) = 0.87 d = 0.216 0.00 0.00
Tot a1 A tJr mp "C"
L], (B) _ 0 Tc tgu7 = 0.40 1.61 0.6G
N E B► = 0 Tc (A+B) _ 0.87
, c L-c J - 0 G=C*Y*A- 3.48
Tc(t ot . ) 5.00 G(est, ) = 3.48
Ti= L B 0.0 Intensity 3.18
A = 1.656288
WP _ 15. 372*G
P = 0. t077
v _ 10
Tc- I-totat'l T~~ lc-rerland + + Ta (guttzr ) 7c(qu) _ Cs. 40
Ti_ (overland) = C4L&-*(L1*r1/S'(), 0.6) ac'est: y 3.48
Ct = 0.15
L1 = Length -,f iverland F'Iow Holding
~`X - f1'1-= t 1C~"6 faer t'_iY 1Ji r'VN, Y ti11-1l~ f 1 o.oor.+ ~ . to, elvi=r ~gE gY ctas :oV2f s
6 _=~vPr age s1 ope of over1 and f Iow
T,_ %g!ctter ) = Len4th ( fta 7 °slel~_~.tv (ft.~~ec, )l60
8 ='.'i: ttom width of gutter ~-~r d i tc-h
zi = 1.nve{se of s1:vP one i-if ditc-h
Z Z' lilverse -:4f r.ss -s'L,Dpe L w,,- f •J -1tch
d=depth ofi fliDw in autter cest imate, ches'i e__ta.r~~~e with Flow )
Area = ?1+Z~'_)
WettNd perimetr-ar = 8 *-d+(1/s!n (atn(tlZ1) )+1/s1n (atrlCll~w~~ ~
HydraLil lc Pad ius = r; = Ar ea /Wet ted Fer a meter
V elcI cI ty = 1r 4SCl /n* 1' kr S67*C 1• a.:
F1 ow ="Jeloc t ty*Ar ea
n= 0.016 for asphal t
s = 1onq1tL►dznal slope of gutter
fti-CKs GA/Gal44e d
~
~O D 7" O.O 6Sq -4c''es
, p.OAbO
Gra~S
Pa •e ~ o~ 7 7 . ~
E
/i j ~ v ~
.7 c!~",vp►~ ~ i/
o . ~ ~ 7 -7- .
. r$-FS
~ ~ b $ G Ac
/ 1'
BOWSTRt hlG METHOD (F I FTY YEAF; STC3RM DESI vtV ) FROJECT : CF'M X OOO8
DETtNT I ON PAS I N DES I rN PAS I IV; FOSTDEtJ 1
DES I GNEt-'.: OLSON
NUMBEP OF DP,YWELLS PFOROSED DATE: 30-Jun-94
0Sinqle (typ 1 Double (type g)
Total Area (calc. ) (see N1) 1.61
Tzme cof Ccnc. (ca1c. ) tsee H1, 5.00
Composite "C" (calc. ) (see H1 ) 0.68
Time of Lonc. (ma.n ) 5.00
Arpa (Acres) 1.61
C' Factur 0.68
Impervio+.is Area (5q. ft, ~ 44332.5
Volume Provaded 1978
OLtt flcow (c fs) 1
Area * C" Far_'tc,r 1.09 #1 #y #4 #5 #E #7
T:me TYme Intenszty 0dev. V in Vcout Stor-?ge
Inc. Inc.
(m Ln. f kse,=. a (in. Ihr., t= gsj (cu. ft. 4(CLt. ft.~ (Cu. f t. ~
cA*C*# 3J (Qut f M*#.~ ) t45-#61
51. ~..~1 0 .r''..~0C~ .00 4 . 5 Q.' 5.01 ~0 1 ~ 310c). 06 1 714
5 300 4. 5S 5.01 2_0 14 300 17 jd
600 3. ~43 3. 5 :45$ 500 ISE5E 4-'
i~ 3c:~ta ir ~7C~8 3(~c:~ 1808
=00 1. l8 17 2820 12-00 1 o~:Q
:•c 15r 1.67 1.83 ~ 1 SC~i i 24:.>
30 t 8~.~0 1. 4f~r 1.60 30,r''~. 18 C"O 1211.178
2' 1 c) 0 1. 3o 1 .42 3 t 3% . ; 100 1 Q32
-~r) 240p'. 1 . iC~. ~i , ~.~~.~41 ;~EE)t_} 8 2t~l
44 27047) 1.07 ."-~...30 ~ ' 00 580
5+0 SF000 1. t3o i. c. 1~ 3394 =000 14
55 330Ci U . '31.~' 1. c1 34~4 '30 3C1 (:a 124
' E0 3600 0. B-7 0.95 3542, -t 3E0f-i -76
65 3900 0 . S. . 0.90 sJ~~~ 31300 ) - .`~"r 1 o
70 4. 920 0. BCi 0.88 3765 4i0 0 -4:'-.,.
75 4500 0.77 0, 84 3877 4500 -623
B~~ 4800 e:i, 0. sz 4022 44300 --778
85 5100 r~ , ~ 7 ~ 4038 51 0i , - 1002
90 5400 0. 70 0. -77 4213 5400 -1 1 87
9~ 57~:~~'.1 0.69 0.75 ~#38C~ 57C~~ ~ -1 ~ ~~1
100 6000 0.67 0.73 4473 ~C-) 0 0 - 15 A27
BFAI NAi3E POtVD 1:ALCULAT I OMS
Requi red gr assy swa 1e pond st oraqe vo1:ame
= Imperva.ous Ar~a x .5 in./ 12r_ in. /Ft. = 1347 cu. ft.
Grassy swale pond volume provided = 1978 cu. ft.
DPYWELL REQU I PEMENTS - 50 YP STOF?M
MaYimum storage required by BowstrinC = 1858 cu. ft.
Pr O V~ 4 ~8S Ga -04-
• ~ c ~
/s
TIME OF CONCEUTPATION tminutes7
Tc (~aver 1 and ) To.: t g~~t tex ► Ar eas
Ct = 0.15 L~ = 50 r-oa-P 0.07 0.190
Zl. - .3 QrQS.S 0.0..~''1 0.15
L 1( A) = 1225 _ 68 Pa ve...op.4 1.02
0.190
NcA ) _ ~'a. 0l6 B= U S:dewo Ik ta. 05 0.90
S(A) 0. 0116 n = 0.016 1 a.+ d sc 4 PG 0.45 0.15
S _ 0.01 0.00 0.00
Tc tAa = 0.87 d = 0. ?47E 0.00 0.00
Tot a1 A Comp "C "
L1 (B) = n Tc (qu ) _ 0.36 1.61 68
N(B) 0 TccA+Pa = 0.87
ScBj = ~ ~=C*3#A= 5.01
Tc f yot. y 5, oO Q(est. 5.01
7o_ (Es) = 0.00 Intensity 4.58
(a = » 1 ~Ei3S4
WF` = 17~6 X2 16
P , 0. I Z .."-.iJ
V = 2.30
Ts_ ~ tc ta 1 Tt (over 1..nJ) + i r~ (qLltf tef r Tc(qu i = 0.36
Tc (overI-And) _ Ct*tLI*N/S'0,5ti ~0.6) Dfest► - ~.(711
Ct = 0.15
Li = Lenqth of Overlanrl FIow Holdinq 1.73
N - fY1t't1cIi far_tnr of r:!/ar1and '.4 fiJ:' a-/efuAC3e 13td3s LCti~,i ~
3 = aWer aqe slope ot over1and f 1 ow
Tt: (gutter ) - Lenqtn ft . ~ /V~1►;~_ st;< < f c . tsec. ) /60
8 = 80t+.Om w Ldth of c_7utter- or rJitch
Zr - r»wer ~e -,--iF cross s1ope one of di :clh
i nverse i_jf a: r oss s'. o{'ya tw~~ f d z r c'i
1"
d - depth or fIow sn gutter (estima+-Ao -:~acl estimz-AvP oda,th Fxow:
Ark-mci = d*Ft+dk' 1+Z2 -
Wetter pei-imeter = .+1: sin(atr~ 11Z:,,
Hy (lr ay 1 i ~ ~'a~t i L« _ P = Ar a/ Wet t ed Fer met er
Ve1 ocZty = 1. 4f3E/n*FP'. 6S7#s``» 5
F1 ow = Ve1 vc ity*Area
n=0.016 f or asphal t
s = longitudinal slope of QLttter
I I I I I f-l 1!' 1 1 I 1 I~ ~ ~ . , ' ~ • ' p..sr-' j I I
r
1 ! ~ ~ t I • ~ ! ; ~ i l~~
I I ~
I ~ p ~i ~ I I
.
r
t f.1
! 1
~
~ ~ ? 1 i ~ ~ i ~ a I .I ~ ► f I I . , i 6 ~ ~ ~ ~
~ , I l ~ ~ • ~ ~ ! ' ~..,a~.~ i r ~ . 'r
,
, ' ~ ' J , ' t C I' P • ~ ~ ~ ~ I ~ y ~ ~ i !
p
10&`,e
~
~ • ~
R '
Y i o il ~
~~i~ a r 'i ' 1 ~ ► I ~ 1 ~ ~ ~ i j ' ~ ( , ~
_ ' a " o ~ ~ ' ~ 1 1 ~ ~ ~ V I i , ~ ~ ► ~ ► q E ' _3
ilor . ► ~ i~~' i ~ I i I
Da~ ' I f~ 1 ► ~
V l
t
~ r ! ~ ~ ~ . .O ~ ~ I ~ ~ 1 ~ ~ ~ ( ~ ♦ ~ ~ ~ ~I r ~
,1 , ) ~ ► ~ I ~
1' * i 1 4L ~ ,.p
;§,7,jli ~ Q ~
r
{ [ M 7 ' I li ~ 7 i I ~ i i i ~ ~ I ! t I k o I ~ ~ f I ~ ~ ~
~
a~.z~~
42 ~
IOJect 17
uacc, AfA iJI DAVID EVAM AND A.SSOCtATES, LNC.
T'=t~ Yrz-►AF Si OF'hl DEEi l-W. Gj xE~_ ~ o_ F'!:l ID::►3
G?l4STPi iVG METr-IICLti r %
1..ETE--V""_J'fl SF+::.IN DES1'•aiV B tiC~z .{Ma °OST DE 2
PEVIEWER: CLSt]N
NUM6ER OF DRYWELLS PROpOSED Z+'Te :
1 Sinql e t typ 11)
i 16~'~ a.L p~ ~ ~Ti~
71rrte ---t :,,rt » _ a'-, N =
1~0j-lN=:s_'Ce 4~~-I Ica rae e ;l1~
T 2.^e C. r.~~ t- =w . t m 1 n t :.t
Av~,~ C,o4
.
~
I. bl
ArCa (-sqr h f w ~ rJ4 25
~.1 `a~ ~Sr ~i i .i..~.r;J
`
I l~;a~P s~` i ,Jv.Mi. ~.,,.y ll~~ 3.-i ~i.Y.r~ a_- 5
:r +.l 1 fL I Zow `?r s..
f"'1y wa -k t: 91 rC`I c t c., Ir
1 x v
T I r,-= T :rr.e in'- e nsZ'-x 0 Z3 rv. 4•
l1c+
M~ ~f~'~~ • ( ~F d t"5 » { ~ ~ Y~ LAi ` r ~ ~ ~..ir ~i • i ~~..~e ~ ~S • R
~
_ ` ~
~ ~ ' ' ' _ ~ ~ ..i i y
~ • f^}~- _
` • ~ ' . ' ~ `!r .f. ~
' " ~ s ~ ~ . ~ • _ ) - _ -
y ~
'T 7
~ _ ~ ~ Y i ~ ~ Y a • 1 ~
1 1.. ~ ~ • . 1 ~ ~ r ~ w
~ a ~ r I ~ • r~~ ~r ~ a ~ ~ ~ ° ~
Z ~ ' ♦ I ~ ~ ~ ~ r ~
.1~.1 3000 0.68 0.17 vl8 5
~ W i~ ~ F M • ~ ~ Q~ ~ ~ s ~ .J 1 r -7
i ~
- r~1
L • ~
~ ..1 ~ _ ~ ~ _ . ~ ~ • .l ~r' ~
~ ~ L
~ ~ ~ ~ • ti L r 1 ~ 1~TM ~ / ~ ~i"' • d
-ziC
i~. .;4_1i~9 5t )e12 J 7z
k~ ~ ( 1
'
=''!t
L
~ 1 - ed 0 ~ as By = sv cs y ? 0.7. C1 :3 t,: " -~RC» F? V I:t ~ Ld rt ~
° q
~ R ~ S Y .L 1 1 J J ~ ~ v A V•
_ I ti;- ..~-1 C- L E 21 't'e T l
H
pf
:.rF' ~;~1~ ~ - z~ r h,E,`~►E6~i - i ''E~i~= ~ ~ ~ ~ ~;,~I ~ r ~.z
i~Ct~c~Tl~..~i~~ ~~'..lr_ILa ~ ~y~.n`+~ 1~ ~1 ~~~~~~v t~il,y ~a• ~
v~
cu.
/ S
~'~:vct~? andd Tc (g~~tter' Areas * liG"
,
Cj✓ _ 0.15 L.2 110 5 so ewQ l'L 0. 0 3 0.90
7 E34. I PaMC~` T 1.~.
~
~
L1 (A i = 7t, Z.:: - 42.64 0 1 5
id ta) 6 - 0 Oc 0
a~ 1~ r 1.~~.~ 1~ R1 ~j ~ ~ i~ Y
C' 'D~ •j 4„
+
Tr_ ' Aa d i c=a5 =ff Cf . c3o Off 01C'
7 ~=i': ~ ? N= r -
-~f.r
L 1~ b)_ t3~~ _ i,4i c_» `
N " i"4 j Tc(rt+8) r 0.47
S L ► - t. ~ T C). 7c
~ -1
Tr ~ ~ u ~ 5• e.: -i w ~ • ~
c tz insenszty Ie
f l.: L
j-tp L6%__ t
~ ~
4~..1.~ry 1 = ~if_= l' {Clnr ~ ft~ ~C«r.e~ I.: k ly~tr 1o4t.
~Ldi , 5 o"::5::~ v.~«7~
n g r ~ r ~ • ~ r w t r ~ ~ ~ ± W ~iJi cd Lt
'a-t!` ,~kf r'V'ei-Sal"'d 7_;tw ~,4 f=?" oveYzkf~1=
_ - d~.= a ._~.?f?`tr#j rd
. ~ . ,
'f~f"■ ! ~ 4 kae'*
v•a ~i `t~•
r ! . . ~ . 3 Y ~ .
_ TI o ] --c
r a~
S. SZ.'-i~S 0 P =
~
~s
- l.. ~~.i ~ t l } ~ e ~ a y-.\~ r ~v 1 i e l~ ~ ~ 1~.. L~ ~1LC i A: Vr A
.i
~
W Cc Y.3-r ? i1~~~
I-lydraul it Radius =R= Ar-ea °We. Jed' smzyer
n*r
,
" ' ~--r'!'...+ i-
~
•
~ ~ re a, s c q~c r~ ~A" e .
~ c rc S
lil/4 4. doZ 77
0.217
$
4 00 0 Ac res
1q
BOWSTR I p4G METHOD kFI F i Y 'Y'Er~P 'STOFM DES I GN ) P'RGJEj= T: CF N;;r; +-►c~E
DETERfT I ON BASi N DESIGN BAS.f Na F1.0 3T DE'l
DES IraNEF, OLSQN
iNJUI"iEiEF' OF" D-" i WELL5PF:OPC'SEL LAi'lE~ 2_3-Jun -'3--~
i olnQ}.@ kltVF+ Dct,jc'aLie k:ype Bi
T.ita1 wirec ica1c. I see rt_ _ ~~.4t)
Tz me Df Ccir+c. . c3a c. + Iw~e H1 ) 5. .14_,
1clfT1(7,:,5 1 T i J _ - - " C " tc31 c . * "seE ~ ~ i r. . v 1
titTie J: C-DrtF.: a;,nin)
1='-r'a lAct'es' 0.40
L r' ,-.L t,;1' 00 1:1
..~i1G:,-'i~ViGLi~ At''ect 1.sq.. f~;. ' ~`~~s
:lt~`! ~tm~ ~1~~:rv Zt~ed '+t- 5
a~
lC ,5 j
Z4
r { : r 2...
L' c
rrF 'r C:e 3 t~rcQ~
~ ~ 1 ~i • ti ` ~ u ~ ~ 27 a ~ ~ ~ • ~ r..r ~ ~ ~ v d ~ ~ ~ 1 t r t ~ s • r
• ~ ~ i
t G J
` ~ -a s`a n • rH
♦ ~ n.Y s~ ~ ~ -T • 1.~ 1~ L • ~ ~ 1 ~ ~ N ~ w ~ J
m
5 300 4.58 1. 1=
. 600 '
L
.L. M °~i tJ • ~r 9~ ~ ~ r
'LJ .y ~ s . .s
C~- ~ - d'• ~ A ~ ' .
.r ~ ~ 1 ~ • s ~ a a ~ _ ~ ~ ~ ~ e
~ ~ . . r
a
-L 1~_• aI ` ~ I r~ A w ~ ~ Z
~ 1 -
~ ,.7 ~ .q IJ r I
:1 ~ f ~ ' ~ • 4.1 ~ d n .
r .1a~ ~ ~ • .J' . ~i ~ ~ ~.~~L
~ .r
~SE
it! CCz 0
3z 1 7V ~ Z4
J~ ( 3 y Z 3`10 ~ Zb ~ -T.ZE !
r_-
sJ s 1. :
t ~ ! ol_, l ! ■ 77 • _3 00v 1+~
L,M ^5 `~~Y +L -4 '1E. •4r
1 ` ♦ ~ + ~
....2Z
11..~ ~ ~ N P.~ • 1 34 ~ ~ ^ ~ _ • +-n. I `11'~
~d'+
~ b Y ` ♦ ~
~ ~ ~ 1'~ 1~ Mf ) U 'i...' a • r ~ ~~i Qr ' ~ ~~~'+r
POND =rL=L"i_~~ :Lia~
3W.E.
S3'r 121 a .
= I mper vious Ar ea ti •.J' - ° .n
.
~ar at.=. a s ~ . ~.~c~cl v~ s n ~ u r = ~ i d
3ri r E=4R 3TCr-M
1~r~
il~i~n -is♦ f 17- :as i t- :.Z'++~~i ' ti.t t~s ti L • 4 r
~rav ~ rieC~ ~U
~D
7IME OF GONCENTRATION (minutes)
Tc. Lsf-verlanda t9~'
_t L~ = 1 1Ct ~ ~:~.wa►ti ~'y.
.
V; r0 i~~ • ....r~ # 1 ~ -i 1
' ! ♦ i"" ~ B ~l "T a~ • IJ
` ~ ' ~.,L ►►w r_~~.~
016
n - t7o,C1a6
.
T= t F~'t = R+ •L - ~
- Y 6 J ■ a v i •
(.r . 4t ) ~i j
N, r^{ 7 B ~ - , _
C ' `
; ~ t_ c : t-s ^ . ~
T•N ' : . ~ = . J~"~ t ~ . = { w 1 _
t y s' • ~ 8
r-
~
~
~ra J
A
t^' • ~ ' ~ ~s i ~ % ' U
~ n ~M ^ ♦ ~ ~ ...1 ~ ~J ~ I -i1 1 J .L I vi ~ ~s J «
i ~
~ ~ 1 ~ ~ r • ~ . ~ ~
~ ~ ~ ~ ~ 4♦.._ ~ ~ 1~~.. ~ _ ~ ►a~ • ..il
~ ~ ~ + ~ ~ 3 ~J'~ ~ • ~..i I ~ ~ A~ - i
Zi
d = d epth ; 1 1 r c
Area - ~E,
c- iz ` ~ ~
0
L} .L ~ _ ~ ~ ~ - ~ w -a _ r ~ J ~ ~ • ~
~ ~ •f~~ ~ ~~~L~L~'
si3 Ze i
~ /
~ ~ r f
O
m ~
-
~~~I IP ID
p ~hl ~
° c EiGNt OF ~PENIN ~ ~ ~ ~ o : a
♦
~
0 C JAN11AA1 19~1 ~ M a b
s W ! a u
♦ a +
a ~
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d
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s N~q
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o fOQt %
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~
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p
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0
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►11 ~I 11 IE 1 I~ ,l 1!}9~ ~ I~I~~f
ila I i'1 I If;
tei ~ l I ~ O S'1 ~I I E 1
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4a► ~.~r .~j~....~~.
1 C!
c~i~~ ~7
( t ~ ' ~ r l 1171
AV ' 7r' ~ ' ' ~ ~ ' r ~ e _ ~
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h I ~ ~ ~ ~ 4 e ~
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~
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~
~
~
E w 6 ~ ~ 1ANNO /fe 2 ' ~ ' , ' ~ i ~ICe c~ ` r ' r
d S~_ le ;
cR..3
ttleolc
Af 1 ~94?f DAV1D EVAM AND c'1M('.IA'IES, 1N C
Pt7W0,011-PI NG iYlETHC'D ti TEN YEAF' GTORM DE'SI Gt4) PF:G.TE6-_'' e rFmx0o0S
DWT_N: t GN BAS T{`! IGN B4S I Ns F'Q5T DE W ~
PEtd T CWEP: OLS0N
NUMBEP '.'t= DR'tWEL! 5 CF'O%E4r=-C DA Tc : 2,^-3
iSa.s:ale ctyp 0 roc.►b! e►. typia B►
T -a t2 l P { F ? (j_ ai c . r t saz ! ~ i . ~►3
-
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C c-!TI .~1. ~~oc-2 C'L'~ 1 i{ t i (t31 L`:J E L Hi1 C' ~ f'+ 4
i 1 Rt ° c i'
pl: ea fAcres) _ 4!357
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TIME OF CONGENTRATION (minutes)
Ts_ (cover Iand ) Tc (qut t ar ) Areas "c"
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ZI .71 0.84 0.90
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S aver aqe s1 i-jpe ofc+ver I anj F 1t_,w
To_ (qutter, , - Length Ut. )/Velcoct+;y kft. ; f60
8 _ B,,ttUm width ,_jf gLtttQr or ditcri
Z 1 - in✓efse ofcrr-sss s 1opecone cor d 1 tch
Z.r: = anver se vf ~r•~_~ -=l.,.:,pe k:wo .~f dxtch
d = deptF, of f1.ctw zn gutt~r (ar;iinater chec!. _s+,maLe w~th F1ow)
Ar e-;R = d-+F+d'' 2502=
Wetter perimEter = r♦c~-~~Ii~in~a'n41.Z1~-~1/=_ln~a~n"1d.~~> > ~
Hydrayl,c F?adius = Area/Wefited F'er xme+er
'Jel oci ty = 1 . 486/n;FP'. 667*sf%. 5
1= 7. 4w = Vel coc i t-y*Ar ea
n= 0.()16 for asphal u
s = 1ongz tudznal slCpe Of gutter
+50
WoW4WUWU
BOWSTRING METHOD (TEN YEAR STORM DESIGN) PROJECT: LPMXOdOe
DETENTIaN BASIN DESIGN &aSIN: INLET 5
DESIVNER OLSON
NUMBER OF DRYWELLS FROF'OSED DATE: 25-May-94
1 Sxngl e CtyR a Doub1 e (type b)
Ti-ital Area (,_alc.) (see H1) 0.08
7ime of ronc. (caic. ) tsee H1) 5.00
`omposite "G" (calc. ) (see H1) t►.'30
Time uE Conc. cminl 5•00
Area (Ac;'es) 0.08
C' Factor 0.90
I mp er vious Ar ea t sq . i t. J 3500
08: 2466 st or m z 5~3 5
Volume Provided 2
Outfiluw (cfs) 0•3
Arpa ~ C" Fact ur 0.07
#1 #2 #3 #4 #5 #6
Txme Time 1'ntensity Qdev. V in V out Storage
Inc. Iric .
(mi.n. ) (sec. ) ~xn. /hr. y (c fs) Lt. ft . ~ (c u. ft. ~ tc u. ft. ~
1*60) (A*C*##3) f Qul- f.*#~ 3(#5-#6)
5.00 300. 00 v • I a ~t 1 ■ L^ .S) r '
~ ~ 3n. . 00
a- ~ . -r -
; 3 c7 ij 2 . 18 L~ .
10 6oo 2.24 0.16 1 l3 iSt7 --w.~
15 900 0 . 1.3N 12'8 !Z-7-C,
.wl.~ ~ ..~~V .iM ~S r~ M 1 i 4~E ~.160 .r..4
LJ 1500 1 n ~ 1 0.09 14o 450 ` 1 t )
1sC1o 1, oa. 0. 07 142 540 35 Z, 1 ot! .91 Cl . r)i 144 -496
40 2400 t-i.8-2 fZ. (_l6 148 720 -571Z~
45 2700 0.74 Cl. t:15 1 49 a - j:► -r'~+-~
50 L.5 ~..~0 0 0.68 U. o5 1521 900 -743
r
..1
JJ 1 64 0.05 157 913()
3600 r~. f i 0. 04 163 10$4)
v9 0 U 0.60 0. 04 1*73 1170 -'3?7
4200 5e Ci, U4 1sCa 1: b~~ - t~~c~
75 4500 0.56 0.04 18E 1350 -1i64
80 4800 0. 0.04 187 1440 5100 0.50.04 195 1530 -13,11 35
~90 5400 O r JU 0.04 1 138 16.~..0
35 5700 0.413 0.04 205 1710 -1 J05
toU 6000 0.48 0.03 211 1800 15 $ra
DRA I IVAGE POND C,ALCULAT I OM1IS
Reqtsired qrassy swale pond stvrage volume
= :rnpervious Area f, .5 in./ 121 7.n. %ft. = 146 c Lt. ft.
provided: 24E6 cu. f 4%;.
DRYWELL REQU IREMElVTS- 10 YCAR DES IGN STORM
Maximum storage required by Pc►wstrinq = ~Cup ft.
4-6
TIME OF rONCENTRATIDN (minLttes)
7c (over 1 and ) Tc t qut t er y Ar eas
Ct = 0.15 L2 _ 94 0.08 0.30
Z 1 = 0.172 0.00 c?. 0C)
1_1 (A) = 25 t.& _ 50 0.00 0.00
N(A) = 0.016 B = 0 0.00 0.00
S(A) = 0. ox_ n G. piS 0.00 0.00
s = 4 0.00 0.00
Tc ((a 0. :'8 d = c~. 0 6^ 0.00 O. t>G
T ot aI A Comp "r "
L1 (8) _ 0 Tc (gu) = C1. 65 0.08 0.90
N(B) = 0 Tc(A+B) = 0,24.18
s(B) _ 0 Cl=~~ ~ I~A= r'~
Tc(tot. ) 5.00 QreSto a = 0 .
Tc CEt a= 0.0 Intenslty 18
A - 0.099566
WP - 3.~~~G
P ~ o. Q3 1
V _ 2 .
Tc ctota1 ) = Tc (overl -ztnd ) + Tc (gutter ) Ti, Cqua = v» 65
Tc koverland) = Ct*kLl*N/S'0a53'0.6' (P(est) _ <?o.~~
't = 0.15
! i = Length o7 Over]. ancl Ft uw Hu1 dlriy
hl - ti'' lct 1on fcsctor of aver 1 and fi _W t .4 fZar e'tvei' ayE' QP.3s5 c-_vt:r ~
5=average s1,,pe of over 1and f 1 ww
Tc (.gut+:er ) = I anqt-h C fit , Ve1 ~~scity t ; t.: sec. 1,1PSO
B _ BUttom wxdth of qutter or dltch
~ 1 inv er sz f cf oss si ctn e cintz- .:.t d i + ch
in./erse o .ro=s =scpe two r.f ditch
c = d-?p Lh of f1. nw Ln qLtttar (estzmat~. chet k ~st L,nate w t t1i F1 ow,'
Area = d-+B=d ! ~ t + Z 2 )
W~~~ed per i mc-tar = B*d+i 1!5i, f1(arne1l~1~)+1,,~.nF-~~~~'I~Z~► ►
HydrauI ic Radius = F = AreafWetted Fer imeter
VPlo,: 1 L'f/ = 1o 436ltl*P"~. 6G~*~'j-r J
F'l ow = Vel oci ty*Ar pa
n= 0.016 for asphal t
s = lonqitudinal slope of qutter
4-7
~ 00
~ 1 I
.
m
EEI : a
+ b~
~ ~
a
Pr'
m o
Nuaar ~o°~ HEIGHS pf 0 w ~ ♦ . a, ~
°sa N ~ a
a0
a
~o 1
o p
%
i~ ~ %
O
0 a p ,``%F
~ +r~A
s %
%
~
1
'
m
% % IN CFS PE~ ~001 o
I ~
► ~p j4l . p , -
pf 4PEOMO
o Ot af 4 ~ %
a, 4 ► - r CAPpCItY PEA F~ ~ ~ ~
2 r ~
° 4 0
14 ' o
'
J
~ ~ ~ ` • o t< ~4%0
ZG1 `
0
`
~ ° .~a fYiF3
N *4 U' Nl"a tN~bl ~ ~a
lh ~GNt Qf ap~ r ~ ~r
n p ME u
~ ~In pi ~ At OPEt 0 m o
~ ~ m ER r
H OF Wpt
Of OEPS ~
~ C.
p TI ~~1 ►
t~ ~ a i~
~ ZI C + a u
-J N ~p v
t9 0
•
_ ~ t~if ,t~.1•pt
Circular Channel Analysis & Desiqn
5o1 ved with Mann ing's Equat ion
Open Channel - Uni form flow
Wor F;sheet IVamP: CEIVTRAL PREfi1I X
r-omment i PQND 5
So1 ve For At t uaI Dep t h
Given Input Data:
D x ame t er . . . . . . . . . . 1.00 f t
Slope.r».......... 0.0033 ft/ft
Mannrnq9s n....... 0.012
Discharge......... 1.67 cfs
Comp ut ed Resul t s a
Depth 4 . . . . . . 0. . . . . 0.65 f t
Ve1oc ity. . . . . . . . . . 3.10 fps
F1 ow Ar ea . . , . . . . d . 0.54 s f
Critzca1 Bepth.... 0.55 ft
Cr it ir_al 51ope,. . . 6.0055 ftOft
Fercent Ful1...... 64.81
FulI Capac xty
QMAX @. 94D... , . . . , 343 _ ts
Frouaie Number. . . . . C-1» 73 ( f1#_w a~ GUbcr xt -i+: si )
Open Lhaniiel F2 ow MCdul e, Vers zon 3.43 kci 1991
Haestad Methc•ds, Inc. ~ 37 RroUkside Rd 'rJatzrbury. ►;t 06:'08
,
C%I1%'tTlfi
iJ t EAl`' e.?S
V'CO.~ ~ t y '""t' j
r
l . 43 . 3 C'
, _ ~ F~- ~ - ~ ~ s. _ - f'~ : G'= ~ ~
• L d ■ L L
~ V t r"~S 'r ~l w ~ ~ L ~ l, ~ i r 1 ~ 7 ~ V~.r • ~ ~ r ~ L.
~
J T^' - Ql~c)._ 1..:~ i - l_~S)!~ sG~ 4YA_~
` ti . ` _ ~ ~-1 : r- ,
I 1"r ~ ~ '4 e.~ lu
1 ~ ~
qL
~
To _ ° f= - . .~'~c
+ 4` ~ ~ ~ IJ-~~ ` ~ ~ ~ ~ • 4
w ~
~ ~ r 1 M ~ ~ a f~`r ~ ~ 1.J.~ I ♦ ~ J~ .I ~
r ~ • `T ^ _ R
v
1 ' • .r ti ~ 1
~ • ~ ~
~ n ~ ' ~ T ' ~ 1_ ~ ~ p-. i ~ • a.1 ~ ' r
Zt
r +
h
~ ' ~ 1~e F ' _ •
Bvttom w idtt-i a f q Lst ~ er
- - ~ i
~ « J
` ~ V ~ _ Y _ y r : " - -e =t • . i _ ~ r . ; ~ r' ~
~ ~ J i ` ~ / ~ ~ ~ p Y •.J•_~ ~ ~ ~ V
}1-4 QivL_j_~
r ~ CJ ~L 6t C!
R o~ 0 772 ~c rcS
O
. la►~ ~ ~ • 4' cl
,f
~,'o- A,-
L.~s~►dSc a~e
J ! ~ ~ 150,~s!
'~3.Z ~crt.5 37
WQW4WoWo
POWSTRING METHDD tFTFTY YEAP STORM DE5IGN3 PPOJECT: CFMXOOOB
DETENT I Ohl EtAS I N DES I GN BAS I N: RQAD 4
DESI GNEF: : (]LSON
NUf"fBEF' OF DF;'{WELLS F'ROFOSED DATE: 2-6-Mayc-94
4 Sinqle ttyp " DEtuble (type B)
Total Area (calc. ) (see Hi) 0.29
Txme of Con`. fca1c.1 (see H1) 5.00
ComQasite "C" (calc. ) (see H1 ) 4.79
Time of Canc. (m2n) 5w00
Area CAcres7 0.29
C' Fac t or 0.79
I mp er v i cius Ar ea C sq . f t. 7 1~34c.~
VoI ume ProvYded 33 4 =
Out f 1ow (c f s ) 2
Ar ea * C" Fact or 0.23
#i #3 #4 #5 #E #7
Tame Time Intensity 0 dev. V xn Vou t Storaqe
Inc. Inc.
{,mxna ~ (sec. ) tin. /h, d ) (c fs ) (1_~.a. fL o ~ (c:LtM f _u„ fta 1
t A*.'*#-':'> i C7ut f.-~#'-'i " #5-#r )
- -
5. 00 300.00 4.53 4:~I 6~')~~ . ~~C -1C1.05
5 300 4.52 1.05 4.21 600 -17''
J i "
i 5.L .~.t 1.Z00 -r1
„I r .4 % ^
~ ~t~
,w 1 ~S,U ~j • ..cJ ".J 566 1 8 t.~ ~.R ~ .1O► ~
1'~ 1,?0t;1 1.98 0. -~5 5E3'3 ~.~.t~t~ -18 i 1
='S i~() C~ 1.67 C). 238 Et l 3(~00 -2389
31) 11301.) 1.46 0. c- 2 v._'r.'.'a ._,GC ~0 - 29 5
~ 160 1, : 0 0. jc ti 654 42,00 -354E
4 0 Z.,400 1.18 00 875 4 sr i ►
c:~0
1
4 ; 2770(.1 1, 0. 4-4 685 54
50 3000 1, 00 U. i3 'f') C4, 6060 -5229 1
5c 3300 I_1 • ~.i 0.21 715 ~~t) f. -5885
60 3E+00 rJ . 37 20 7~0 7'21 0 C1 -6464
6~ 3'900 0. E32 U . : `.1 ?5fa 7SOC1 -7050
74 4200 0.80 0.19 786 8400 -761,1
75 4500 0.77 0.18 81 CI 9000 1•3c)
$o 4$00 0.75 0. t i $4 0 -8760
85 5100 0.72 0.16 E356 1+:l.:.OU -9.^-,-44
90 5400 0.70 0.16 88o 10800 -~39*4 2:. C ,
95 5700 0.69 0.16 915 11 40C) - i 0485
1~.'~0 E000 0.67 0.15 9~4 Ir000 -1106E
DRAt NAGE F'OND rALCULAT I OPJS
Required grassy swale pond storage volume
_ Impervzaus Area % .5 an. / 1~ 1-n. /tt. _ 431 c-u, rt.
I'mr3ssy swale pond volumz provided = 3344'" C Lt. ft.
DRYWELL RE-QUIREhlENTS - 50 'fR STORM
MaYimum storaye required by Bowstring = 0 ZLc. ft,
38
TIME OF rONCENTRATYON (minutes)
T~ (over 1 and ) Tc (gut t er) Ar eas "C "
Ct = 0.15 Lt = 4 3 4 Roa d 0 . 24 4. ~0
Z1 4.5 s,de 510re. 4.05 0.25
LVA ) _ 20 Z2 _ so 0.00 0.00
Ndfii1 = 0.016 B= V 0.00 0. 00
SCA? = 0. 02" n = 0.016 0.00 0.00
S - ~t 0.00 4 . { )o
Tr_ (A) _ 0 4 d - 0.00 `to 0t7
Total A C~~mp L 1 (b ) = 0 T c (g u) _ 4.31 0. 2-'3
N(B) = 0 Tc (A+B) = 0.24
s(B) = 0 Q=r_*1*A= l, 05
Tc (tot. ) 5.00 Q(est. ) = 1.05
Tc 4R; = 0.00 Intensity 4.58
a = 0. e.2-3534
W i- S7 • 2 0... r..
P _ 0 . s)
To_ (total Tc tlztverland7 f Tc (autter ) T.: (gU) 4.31
T-_ iovAY lar.d> = i_t* CLi*N/S^O.5: ^0.E) o(ost) = 1 „o_
C 4~ = 0. 15
~ .
Li = Length of Clvar:and F1ow Holdllig = f~'
N = fr ictTon fa►_tor _tf civerland Flx.,u c.4 ft-r avea°ago qr des ,--,'1Lr~
S = aver aqe S1 t-npe -:.fowQrland f1ow
Tc (qu~ reF ) = Length 111- ,)lVe1 nc a.ty t ff:. rsr~~ . a 8 = Fc oi-tr_+m wi dth of qUttaror d xt.= h
Z~ - invers= of cross w's-,pe r_ine ul' dit.rh
Z.'; - lR` eY 1e of c1'1:+5s aZr►pe ei.lrv,_:t of d1tch
d cept:i _,f t? ow in vittter (est Lm..~re, che_f, ert im.--O-e with r la~, ArE a =
Werter pera.meter = L~*d+tl/si.n(%atn(l Z1, )+i/sa.n'abn(loZ2)~)
Mydr ay lic =ad Y us = F' =Ar ea / We1: ted Per Lme E er
, Ve1ocity = 1 . 4BG/n*P'. Se7*s" . 5
F1 ow = U?1 acit y*Area
n = 0.41E ior asphaI t
s = IorgYFuda.nal slope of gutter
39
! I II ~I 11 l~' , II 1l1 ~ ' ~ ' ~
i ~ I ~ t I i 1 ~ 1 1 1 i " ~
I I ~ i d ~ ~ ~ i x a i ~ i ~ i ► ~ ~
I ~ I ~ , . ~ ; ~ . , ~ • ~j ~ t ► 1
-
~ i ~ ' ~ 0 • i ~ ~ ~ r , ~ } ' ' ! ~
I! E I ,
c14C~
Li~_,,is Z of
,
~~~1 ~II(1 l ~I !1( 1!1 i ~ N~E~
~ ~ 1 ~ ~ I ~ i ~ I ~ ~ E I P 1 ~ ! ► ' ' ~
~ ► I I ~ ~ ` ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 1~, ~ ~ ~ { ~ ~ I ~ ~ ~ I ~ ~ r ~ ~ ~ ~ ~ I~_ ~ ~ ~ 71 en
~
i 1 3 ~
~
~ ~ _ - -
v ~ ' ► I ' ! I 1 ~ ~ 1 e i i ~ ~ r ~
f
' 1LA 1 ' 1 " i ~
•
1 1 w ~ o ' ( • ` ' p, ~ ~ ~ _ ~ fft
i
57~~~
~ I
i~~ ~~~i~~,~~~~ ~
~ i ! ~ ~ 9 _ I ' p. ~ ~ ° ' _ ~ ~ . ~ ~ ► -el'
T--- , ~4-21
, ~ I ~ ~ ► ~ l I ~ ~ r i , ~ . ~ ~ { + I ~ ~ ~ 1 ~ ~ ~
~
J4- i ~~-a(;
i V
Op /I e+ rv_A
~•Rr, ~1~~ l ~ o?O ,7 ~1~'~ ! ~ ~ -~r ~ ►
s _
n I • ' 1 f ~ ~ f ~ ~ ~ ~ ~ ~ ~ ~ i
I s L f; Y
~ o
4-0
~3 DAVm Evmvs Aw aomm Ilvc
~
~ ~~r { w ~.r~~ r~■~~ ~I ~
,,,.~1.~w.,~.., a.tr„~. - - ~ a~ ~ • - - ~aa~ ~~ro.a ~ r~' , : -
_ _ - - _ _ _ r ~ , i ~ ~ b_ _ ~ ~ . - - • - - -
~_ti~.
..y ~ ~ ~ _ ~ ~ ~ t - ~ ~o~ ~L~ ~ - - - !^1 ~ ~ , I~
~ _ - o _ ~ a - .,rtj...~ ...u ~ ~ . • a~
C , ~ •
~ r.... .f.~ w. ..e. eu r.~_r...... ~ .4.~ ~ ~~~r. t.~., ~ rr.~~ .
_ ~ ~~__u ~ a_,~ _ ~ _ ~ - -
~ ` ~ ~
_ _ _ . _ _ _ . ,
BOWSTP, I IVI, METhiOL (TEN YEAF' STORM DES I UN ) F'POJECT : t..pM X00c,~8
DETEIVT I ON BAS I!V DES I uN BASIN: FOSTDEV 5
TJESIGNER OL50N
NUMBEP, OF DF;YWELLS F'ROPOSED DATE: 30-Jun-94
t? Single ctyp 1 D4uble ttype B)
Tot al Ar ea (cal c.) t see H 17 1.48
Time of Conc. (calc.' (see H1) 5.00
Composite ~~C" c.c alc. ~ (sep H1) 0.71
Time of Conc o (min ) 5.00
A rea (Acr es ) 1•47$2-15
C' Fac tor 4:1d71
Impervious Area (sq. ft.) 36752"
Vo1 ume Pr ov i ded 208: 1940 st or rn : 4~33
Out f1 ow (cfis) I
Ar ea * C" Fact ar 1•06
#1 #2 #3 #4 #v #6 #7
Time T:me Intensity Q dey. 4' IL n Vout Stor-~gc-
Inc, Inc.
tmln. ► (sec. ) Czn. lhr. a (cfis) (x_u. fF.) ccu. ft. (cu. ft~ )
0#1~60a k'QLtt r.*#*--', r#5 - ItS ,
5• 00 300.00 2.18 a.~~.f • JG 1 rZj% 6 3 3oo.
~ 7. 3.1 a 3.36 1*2 49 10-19
~ 1 ~
R) J, ..4 r '1 ~ ~ r°'~ ~
7 ~ ~ . ~ ~ i:► ..t
1 TJ 900- 1. 1..' 1.87 3 0~~ 9(-00 9 7 :
~
L ! 1
20 1 .w 0 ~J 1.45 1.53 ~ 13 9 ~ ~ .r
15(-)0 1 .1. 23 -745 1300 ~4 5.
t~?
30 1~3tf~ ~ 1 . t~C.k *
a. 1 C ~ ~ s 31 ~s~ n ,♦6 Z114 .11 4J6.~ L?`
40 24 C) Y 0N8..~, M w v I r.l tJ5 i-L00 ~A- v05
4~ z i 0 C; t'. '%F 0.76 =18$ : r: --15 1 -Z
50 30F„7t„f 0. E ~ .1
y ' (.•h 74 « _ r.6 ~ r t)~.~~.. ~ 'T
55 'Zil 30 0 0 , 4 0 . 6 -1-,~-7
,.~~.yif~) - 1 ? ~ ~
E ~ 3600 6 4~ n i 0.64
a 5 3130 C) . 60 0.63 z 534 1 ^6E
7~~ -~~~►t~f t, p 58 0.61 ~F ~~~~t~ - 1 ~~7
75 4500 0 . ~G ~i • 50, 9 4500 - 17E31
80 4800 o.53 0. 5E 2741 4800 -....(J59
$~.3 5100 0.52 0.55 2854 51 0`1 '2..~46
90 5400 CsJ' ~ ~Z ~ 5400
r • c~v ~ ~ ~ !
5700 tJ r 4301 0. 52, 21 0 (,0 0 5700 7'GC1
1 00 6000 0.48 0.51 ~0 90 5000 1 1) DRA I NAGE F`aRiD CALCi!LAT I ONG
Required qras<sy saale pond storage volitme
= Impervavus Area x .5 inp / 1Z in. Jft. = 15 %3 I
pfovideda 1940 cu. ft.
DRYialELL REQU I REMENTS - 10 YEAR DESI GN STORM
Maximum storaQE required bf Bowstt-inq = 1o59 cu. ft.
provided. 4 2 2- 9 cu. f L- .
~-a
TIME aF CONrENTRATION (minutes)
Tc (over 1 and ) Tc kgut t er > Ar eas ~ "C"
i t = 0.15 L2 = 245 Votv0.18 4.90
zl = 220 71 10 1% vle.+,e•1 C). 84 0.90
L 1 (A) 45 Z•_= 50 ~ r a Je ~ 0.15 0.50
N(A) 0.016 B = 0 lp n dSC4pe. E.). 20 0.15
S(A) 0.0270 n = k.~•016 HaTN/~Q 1 0.11 0.25
S = 0. 0 10 2. 0.00 0.00
Tc (A) = 0.36 d = ~lo5 0.00 0.00
7"ot dl A E1of11p "C"
L1 (g) = 0 To_ Cgua = 1.95 1.48 4.71
N($) = 0 Tc(A+$) _ 0.36
S(B) - 0 Q-C*I*A= 3.36
Tt (to-t . ) 5.00 Q(est. + = 3. 0-6
Tc tS) _ oa o Intensity 3.18
A = 1.6108'~T~
WF
- 0d t05.::
V = 2. o9
Tc t total i= T-_ (overland ) + Tr- (gut ter- ) Tc (qu l= 1.915
Tc (over 1 and ) West ) _ 3.36
e-t = 0.15
L1 = Lenat~ o_,t O\,erlarid Fi ow Hol:i3ng = t3
hl = frict+on fa~tor :f c=verland flow (.s fi_« aveYage gra~s ccoter)
S = avetage sIaDpe ~ ~ f over 1 and FI c,w
7 ~ ~ ~utter J = L~~ gH7 (ftn )/Ve1 oL. iU f
L~c = Bottom widtn c-fg;_ttter nr di tcFt
Z 1 -1n r ers e f r : s s1 oQ -e on e :-i d:. _ h
'L.' - itl'✓eY Se Si!.tOe two of Jlt.--Fi
d _ dep t h _.f ir nw : r, gu kter (+?St1 oT! 3 ter ch zc~ ,.?st Lm~ ~ e wi. th r:: a a
Area
Wet tea ~ertmetar- HydraL-i i-_ Radius- _ R _ Area/WettPC =er imetpr
ve1 t1C 1 t, y- Z•`=Str /n*Pr r f,F.r7*s"' •..1
FI ow = Ve1 oca. ty#Ar ea
n = 0.016 for asPnait
s = lonq~budznal s1o~e or gurter
WoWoWoWo
e Q.: G olL c/ I a~e a
~o o _g D • / ~ 3 4 f*'r. r~S
~ '`F- 3 7 r ~
pQ
C~✓o , ON; a r
A
• t )
r n
A-G rL j
1
4-3
lwowowowo
BOWSTP.TNU METHOD (FSFTY YEAR STOFM DESIGN) PROJECT: CRMXOOOB
DETENTION BASIN DESIGN BASIN: FOSTDEV 5
DESiuNER: OLSON
IUUMBEP. OF DFc'fWELLS PROPOSED DATE: 30-Jun--94
0SYngle ttyp i Double Ctype Ba
Tot aI Ar ea (cal c.) C see H1) 1.48
Time of Cunc, (calc. ) (see H1) 5a00
Composite "C" 6,alc. a (see HI ) 0.71
Time of Gonc. (mxn) 5.00
Ar ea (Acr es ) 1•48
C.' Factrr 0.71
I mp er vious Ar ea (sq. f t.) 36752
Vo1 ume Frovlded 1940
Out flow tr fsa 1
Ar e~ * 12" Factc►r 1•06
# 1 Rtv ► #4 #5 #6 #7
Time Tirne Sntensity Q dev. V zn Voi-tt ~toraqe
Tnc. Inc.
cinin, ~ (set. ) ~in.1hr., fs) (cW. ft. ) tcu. Ft. j~_..t. ft. ~
1 *60) ~ A*C. 1 0 1 A t f . 1 44 5 ; 1
5. ('.)0 300. 00 4 . 55 8 4.84 19 -15 30C)» 00 16411
5 300 4. 53 4. 84 1945 30t.~ 16 % 1, 15
10 60c, 3.::~,1 2.38 21 3 7 ~ 6cit-i L- 7^
f~4~~ 1714
1 ~ '~f.~c? ' ~ ~ 1 : 6 14
~
; ,0 ;'(7( 1.98 , 4; .a~~~ ~ 2"tu 152
i~ 150fi 1 » 1'~ Y' Z • ! b 1500 13 .'.6
:30 1800 1. 4Fa 1.54 2 4 1 Eit )c, ti;s
~ ~
..~.'i~ 411.100 , _ . ..vU 1.37 3 0 .a4
..a.t) 124 ~..~c) 1 a i. $ 1 . ~5 3119 `~~.4c.'~e1 713
45 y'~~~~ 1. a.~`7 1 , i ~ ~ 16 ~ ?7~~
50 3000 1.00 1.06 3.:77 S00c:► 2 7~
55 ti..~0t l 0. 9:~ 0. 97, 3306 ..~'.r3oo C.
SC) 3600 0.87 0» 9.:: 340A- 0- 6 r:0) -113€3
65 3300 0. :3Z t.i. 87 3467 3906 -43°-:
70 4200 0.30 0.85 3636 420U -564
75 4500 0.777 0.81 3 7 4 4500 -7 57
sc~ 48C~r~ 75 . ~c- 34 4800 - 91 E
85 5100 cm.7< 0.76 3957 51,10 -1 143
90 5400 cJ «~Lf C1. 74 4069 r3400 -1 3J 1
95 5700 0169 0.73 4 2 29 5700 -1 4-71
100 5000 0.67 0.71 431-3 E000 -162 ~
DRAT hIA>>E FOIVD CALCULAT I ONS
Requi r ed gr assy swal e pond st oraGE vol ume
= Impervious Area .S in. / 12 in. /ft, = 1531 r_u. ft.
Grassy swale pond Volume provsded = 1940 cu. ft.
DRYWELL FECU I FEMENTS - 50 'f R32TOPM
Ma„amum 5torage required by Bowstrlng = 1773 cu. ft.
Prov- .4 p d +.;t39 Ga- 1t
~
i
JUL 12 " 94' 11. 34 TG509 3243478 FROlI DA1iID EUAI4.S RSSOC T-0g1 , P. 01
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conirmy: Devid Bvars and_ABSOdatosrInc. L,"aum Spokmc
Fm Nae (509) 327 ;7345 Mam No. (509) 327•8697
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- - -
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Nta►ber of Fages Trarsmitted (h%cludkg, cover 9heet) Please caIl ('59) 327-8697 If <yoou don't recelve the tottfnumber of pag+es indicaled.
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JUL 12 ' 94 11 • 55 TO 589 3243478 FRQi-t DAV I D E1JAP15 ASSOC T-651 P. 05
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wowawo
.
AQWSTR, I NQ MIETHOD (TEN YFAp STfTRM nFq1 f;R! ) FRn ?ECT a CPtIX
DETENTION BASIN DESiGN BASIN: 8PH 1DO
DES I t~iVER OL
NUMBER DF DkYWELLS FFtOPC1SED DHTE: 11-Ju 1-V4
4 8lligla kLyN t? Duubaw (LyNw B)
Total Area (calc. ti tavo HiN 0-09
1 ime af Canc. (calc. ) (see Hi ) 5.0n.
Compos i t e "r,l ( ca1 c.) C see 111) 0.70
T1TO of CQns.(n+in + 5.00
iir ea (Ac r es ) 0.08953
C' Pac t ar 0.70
Imperviauc Area fcq. ft. ) U
Valume Nrcviaee 208: 0 storm: U
Dut tl ov (c fs)
Ar oa 4 C" Fnc t or 0. pf;
01 02 N3 04 #5 #b #7
Timo Time Intensity f rlsa%.. Vin V..iIt Stora4e
Int. Int.
tsec. y <an. /hr.' (t ic) (ru. ft. ) ~Cu. ft. ) (cu. ft. )
1*EG ) r F,-►r_ *#3 1 tUut t.**2) (q►-#6 )
Ci~TVi~CRsTis9v~cse~c9aprs~~~`~ ~...~.~.~~~....r.~...e, ar•..«..r~_:~~~~=~~acsaas~ms~3o~.~........~a~
5.00 300.00 130.113 n. .20 @n 0.00 8C)
0 300 3.18 6.20 so O 06
10 S08 2_24 A_ i d 98 Q
15 940 1. v. 11 111 4 ilt
20 1200 1.45 0.09 11 O O 110
25 isocs 1.21 0.09 121 9 1?1
30 1uUV 1.04 t). 06 124 u 124
30 2140 0.91 n. oe 125 0 125
40 2400 0.82 o. 05 iz8 4 t?A
a}b 2/00 0.74 0.019, 130 u 130
so 3000 0.68 0.04 iaIA". a 132
55 3344 0.64 tl _ n4 10111f; 0 136
60 3600 0.61 C). tj4 141 O 141
05 390(1 4.60 0.04 13A 0 IS6
70 4700 0.98 0.04 156 Cl lt*
TS 4500 0.55 0.03 161 n ibi
AO 480C.) 0.53 0.03 162 n 162
85 5100 0.52 ti. Qa lb`-i 0 169
94 5400 S?l ci0 0.03 172 9 1721
SS 5744 4.49 A. .03 178 0 178
!GO 6000 0.48 Q. UJ lt 14, 0 183
=------------------m._-
DRA i PlA6E POND CALCULA I i UN5
Required grasay swelv pond rtot•age vwlume
~ Imporvious Area x.5 +n_ ! 17 in. lft. a 0 cu. ft.
aravidea: o cu. rL.
DPYWELL REQUIREMENYS - in YFAR nFSTrN qTOaM
Maximutn storage required by Pow51,r aity - 163 cu. ft.
pravidedo 0 cu. ft.
JUL 12 ' 94 11 • 56 TO 509 3245478 FRCif,1 DAV I D EL1AN5 ASSOC T-051 P. 84
T1MF f1F f:nNf:FNTRATTf1N fmineetp%l
Tc Covorlandl Te (gutter) Areas "C"
Gt = 0.15 LZ = 90 0.04 0.90
t 1 = 1ri 1.1. 05 0.55
L1(A) = 50 L~ = Id.S/ 0.00 4.40
N<A> = 0.016 H~ 0 0.00 0.00
g(A) a 0.01 n a 0. 016 f), E,~tl 0.00
g a 1),.U 0.00 0.00
T~. < A) - Q. ~2 d m 0. 032~ C.? . 0 k'i 0.00
1 00-10" 'T'c•t a1 A Camp ►1 C 11
L1M n n 1 t tgu) ~ U. yd 0.09 0.70
NtH? - O Tc(A+B) ~ 0.52>
g(a) a 0 Qwc*i sa= 0.20
rce t ot.> 5.00 o(est. ) = 0.20
Tc (D) • 0.0 Intensity ..~r 18
A
WP = 3.5609
FZ ~ G.O*f6G
V ~ 1.19
Tc (tatal) = Tc (averiand) ♦ Tc kgutter> TL(gu) - 0.98
Tc tQVerland? a Ct*(L1*N/S~0.5)^0.6) Q(eQt) = 0.20
f t = tl . 1 l'i
L1 = Length ot Qverland Fxow Hvldlilg - 2•49
N a f r i c t z on f ac t or o f avcrr I and f 1 av G1 f_•r aver age grdn~s ~aover )
S~ avPr x0A al npA rof nvpp 1 and f 1 ou
Tc Cguttery = Length (tt.)ivelacity (ft.♦seL0/60
B-&otid8m vidth of guttcr or ditrh
Z1 = inverse of crass slape ane rf ditcM
Z2 ~ lrive►yw l1f qrUSm b1uNw Lwu ut v.►i.L11
d= depth ot flav ir) 4Utter tQGtamake, ZhPcL• P%timatQ with Flowa
AT Q3 = d*k7♦'d';412*(L 1{'L.r")
Wetted perimeter = ~~d+t~/sintatnci/Z~.~~+t/~~ntatn<i/Z~)~?
Nydraul ic Padiuw o p= Area/Wottad !-'orimeter
Velocity = 1.486/nfR^.f67*s^.g
t'1ow • VelotityNAres
na 0.016 for asphalt
s = lonqitudinal slope of gutter
O•!o` ~ ~ . o9,t',~ /
~ ~
~r
~
T•'o A! G~' ~~~i °1 a r~ WersT t.o SG O r
Oel af ~
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ev f/fc.r /OGd1A ods
,~p e .5 49'
~ A~/~ S~i► w e r S: d t S/p
d ,-A ~ ~1•' ~'0 1/ * /le .
y
JUL 12 194 11:58 TO 509 3243476 FROM DAUID EUANS ASSf7C T-052 P.01
,
,
T I ME OF CONCENTRA7 I 0N c m inut es )
Tc tover 1 and y Tc (Qutt er) Ar Qas "G"
Ct ~ 0.15 L2- = 70 0.04 0.90
Z1 ~ ?0 0.05 0.55
L1 tA) = 50 Z2 = 113.57 0.00 0.00
N(A) = 0.016 8= 4 0.00 0.00
S(A) = 0.01 n - 0.016 u. 00 0.00
s = 0.00 0.00
Tc c A' ~ 0.52 d ~ CO. 0922 0.00 0. tau
Tot al A Comp "C"
L 1 t 8> = G Tc t Q ul U. 9ri 0.70
N(B) = ~,0 Tt C A+H 0.52
ScP7 = O Q=C*I*p= 0.20
TC C t Qt . j 5.00 Q te3t • ) = 0.20
Tc (8) ~ 410 Intensity i8
A ~ 0.163333
WP 3.5609
P. = 0.0460
t1 ~ 1.19
Tc (total Tc (overiand) + Te (g«tter) Tccgu) = 0.98
Tc (overland) = Ct*(L1*NI6"0.5)''0.6) 0.*20
ct = 0.15
= ~.49
LI = Length of Overland F1ou Holding
N= f r i c t i an f ar tor of oyer 1and f 1 aw t.4 for aver age g~ass c over a
S= aver age sl ape of over1 and f1 aw
Tc (gutter )m Length t ft. IlVeleacity (ft. /sac .)/ba
8 sBottom width of gutter ar ditch
Zi m inverse of cros~ ~lope ane of di#;ch
I2 = inverse of crosB slape tWG of ditch
d= clepth of f1oW irs gutter (eatimate, check estimate vith Flow)
Area = d*B+d^2/2*Q1+z~)
Wetted perimeter = B*d~t2/s:n(atnti/7.i)3+2/sinf.atnil/Z~)))
Hydr aul i c Rad i us = P. = Ar ea/Wet t Qd Per i met er
VQ1 oc ity G 1.486/n*R'' . E67*s^. 5
Fl oW = Vel oc 3 ty*Area
n= 0.016 f or asphalt
s = lanQitudinal slope of 4utter
, m
.
,
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NOTICE OF' T RANSMITTAL
ADDRiSs rROlt-,cr #
'e"'30
BUS[NLSS NAME t'ARCEL NO /LEGAL
~ DESCRIPTtON
PROPOSED US E
CONTACT. PHO[vE.
511"Clie- 9a~6
REASON FOR TRANSMITTAL
PREAPPL[CAT10N CANFERFNCE PRECONSTRUCTION CONFERElVCE OTHER
DATE: TIME•
DOCUMENTS CIRCULATED
DISTRtBUTED TO: aEM DESCRIPTION BUILOINGS PLANNMG ENCINEFRS HEALTH SCAPCA FlRE DISI' # / OTHER•
Site Plan (new) (reviwd)
Criticai Matenals List
Parking Plan
Signage Plan
~v~ . ~ ~ '4~`a~` • ~ ~"v~'.a 4 tf~f5
Lightias Pian f~~.~i.,~
h? ~{r, + k f' ""3~•`"-f_",~
IAcainaSe Ptan
lDrainage Calculations
Agreement to Pay Fees
J. '~`f t t~ S`. hn . r. #
~i w rf r~~ .r» ♦n
Imgation Plan ti:~,- ~
~ ~s
. tr bt.
Landscape Plan ~ F~`
lPronussory Letter
,Landscape Cost F.stimate
rrx 7~s ~ 1[!~F ~ ~ n.~vM1V ~,rr ~`49Q'~Pfl4DGtix ~'4r^r[~~ A
ITraffic .~Z,~~.,
Ctrculahon Plan
f ~
Constniction Drawin
gs
„zr
Ftoor Plan
~
( I
• ~ ~ I ~ ~ ,
?He abovc items have becn '
rcccrvcd ~
Date of Transmittal• Rewew Coordinator.
Cinculated by ,JU,~ ~ ~ 19A ~
a
Srnkatre Caeenty Drwituit ef Burltliu,Si, * 1026 Wd%1 Bi uurlirnv Ave•nur ~ Spnkurre, WA 99264 - s"'b%LkR
,
~ A
SPOKAIYE ENVIRONMENTAL ORDtNANCE AC(;EP-TED
ENVIRONMENTAL CSECKI.LST COMMENT ACCEPTANCE
DATE of DNS• August 30, 1994
PROJECT: Construct a Concrete Block Manufactunng Plant. office and storage areas
FILE NUMBER: 94006304
L ;arietta OCATION: 16 13 E. Ave. Spokeae Was6iagton 99206 Z--Z 17L_
~
APPLICANT: Central Pre-Mix P.O. Box 3366 Spokane Washington 99220
RESPONSIBLE OFFICIAL• James L. Manson, Dtrector
c% 1'homas L Davis, Laad Use Planner
Spokane County Divmon of Bwldtngs
1026 West Broadway
Spokane. Washington 99260
(509) 456-3675
*~*~*~*s~~~+•~**~~+«~~**~~*~**~*****~~**~~*~***~~*~~
Ths followmg oommeat(s) corresponds to the noted secdon of the Eovtronnnental Checklisi subantted by the
applicant and becomes pad of the cbecklist ia accordance with SecUoa 11.10.160 of the Spokene Environmeutal
Ord►nance and adopted poucies:
Department of Ecology - Commea~ts dated September 13, 1994 ane attached.
~ , ~
Date S_pe tember L9 1994 Signature
****~~~s~~*~*~**~*~*~~*•♦****a**~*~~~*~~*~~*~*~~*~~***
A copy of ttus Comment Acceptance to the Env►roamental Checklist was mauled to•
Spokane County fingwear's Office Washington State Dept. of Ecology
Mr. Bill Hemmiags Envtroamental Review SecUon
Spokane County Heaith Distnct Ms. Barbare Ritchie
Eavironmental Health Waslungton State Deparhnmt of
Mr. David Swink Social and Healt6 Services
Fire Dtstnct No. 1 Mr. Tom Justus
Mr. Paul Chase Spokane County Aic Polluhon Coatrol
Applicaut Mt. Enc Skelton
Mr. Tim Murphy
w•
SEP f; 13.54
STATE Of WASHINGTON BUILDI~,+C- t S~FF-P.11
DEPARTMENT OF ECOLOGY
PO Box 47600 • Olympia, Washingfon 98504-7600 •(20b) 407-6000 • TDO Only (Hearing Impair+ed) (206) 407-6006
September 13, 1994
Mr. Thomas L. Davis
Spokane County
w 1026 Broadway Ave
Spokane WA 99260
Dear Mr. Davis:
Thank you for the opportunity to comment on the determination of
nonsignificance for the construction of a concrete block
manufacturing plant, as proposed by Central Pre Mix (#94006304).
We reviewed the environmental checklist and have the following
comments.
The owner of a construction site which disturbs five acres or
more of total land area, and which has or will have a discharge
of storm water to a surface water or to a storm sewer, must apply
for coverage under Ecology's Baseline General Pernait for Storm
Water Discharges Associated with Industrial Activities.
Application should be made at least 30-days prior to commencement
of construction activities. A storYn water permit application
form, referred to as a Notice of Intent, can be obtained by
calling (206) 407-7156.
If process water or stormwater is discharged to an unlined
impoundment, a state waste discharge permit is required. If
discharge is to surface water, a National Pollutant Discharge
Elimination System (NPDES) permit is required. Certain
discharges are subject to Environmental Protection Agency
effluent limitations. The applicant should also submit the
Notice of Intent for the Sand and Gravel General Perait.
If you have any questions, please call either Mr. Roger Ray at
(509) 456-6174 or Mr. Wayne Peterson at (509) 456-6161, both with
our Water Quality Program.
Sincerely,
Rebecca J. Inman
Environmental Review Section
RI:94-6852
cc: Linda Matlock, WQ Wayne Peterson, ERO
Roger Ray, ERO Heidi Renz, ERO
«491,• 0
bh~
October 19,1994
Mr. Paul Lennemann, E»LT.
Spokane County Engineers
1026 W. Broadway
Spokane, Washington 99260-0240
SubjecC Central Pre-Mix Drymix Facility and Block Production Plant
Dear Paul, East 16310 Martetta
Our firm was retained by the grading contractor for the above referenced project to
provide construction staking. The staking was established in accordance with the
grading and drainage plans approved by the County, including the modification for the
office roof runoff.
The only deviation from the approved plans that we are aware of is the deletion of the
truck loading ramp at the nortliwest corner of the dry mix building. This change does
not affect the drainage facilities as they were designed.
The owner has opted to increase the size of the ponds on the southwest portion of the
site. This will be accomplished by using a bloclc retaining wall design. This change will
3narease the capacity of these ponds and will be an increased factor oE safety over that
designed.
If you have any questions, please feel free to call or stop by the job site.
Sincerely,
DAVID EVANS AND ASSOCIATES, INC.
l,
W. Larry son, P.E.
Project ger
c: Mr. Tim Murphy
Mr. Ken Jeffrey
KAn.an►no101aa
DAVID EVANS ANU ASSOCIATES. INC
A PROFE551ONA1. Sm'iCf.S C,aNSl'LTlhf; f1R11
OFFICEdS lN OREGON, USh11yGTUV, (.d11 IFUR'VlA AND ARILQV4
1K'ES1 ! lA CAU1.I10
S110Kr1Nt Vr11111'VGTqti 99201
f 509132,-869` FAX 509132" 7311
~
PROJECT NUMBER= 9400792( APPLICATION Dd~ = 08/16/94 PAGE= 01
THIS IS NOT A PERMIT
PEATALTIES WILL BE ASSESSED FOR CONMENCING WORK WITHOUT A PERMIT
c
SITE STREET= 16310 E MARIETTA AVE PARCEL#= 45121.9132
ADDRESS= SPOKANE WA 99206 GeB
l~p
PERMIT QSE= OFFICE
v~ AiPA
PLAT#= 999999 PLAT NAME= RANGE
HLOCKa LOT= ZONE= I-3 DIST$= H
AREA= 00004000 F/A= F WIDTH= DEPTH= R/W= 60
# OF BLDGS= 1 # DWELLINGS= WATER DIST = SPOKANE IND PARK
OWNER= CENTRAL PRE MIX COMPANY PHONE= 509 534 6221
STREET= POB 3366
ADDRESSa SPOKANE WA 99220
CONTACT NAME= TIM MURPHY PHONE NUMBER= 509 534 6221
SUILDIYJG SETBACKS: FRONT= 35 LEFT= NA RIGHT= NA REAR= NA
rr*~~*****~~****~************** REVIEW INFORMATION
DEPARTMENT REVIEW REQUIREMENT
BIIII,DING REVIEW COORDINATOR - J LARSON
COMMENTS :
BUILDING PLAN REVIEW REQUIRED
>
COMMENTS :
r N
ENGINEER DRAINAGE PLAN REQ'D
CONMENTS : NY
PLANNING SITE PLAN REVIEW REQIIIRED
CONMENTS : Al~m
dmwofAzu
FIRE DISTR FIRE FLOq TO BE REVIEWED
COMIlKENTS :
BQILDING PERMIT
CONTRACTOR= UNKNOWN PHONE=
STREETa UNKNOWN
ADDRESS= UNKNOWN WA UNKNOWN
0
~ CENTRAL PRE-MIX CONCRETE CO.
P~
~ CORPORATE OFfiCE o EAST 5111 BROADWAY o P.O BOX 3366
SPOKANE, WASHINOTON 39220-3386 • (5Q9) 5346221
RECEIVED
August 241994 AU6 2 9 1q44
POKANE COUNTY EMWM
Paul Lenneman, E I T
Assistant Plant Review Engineer
SPOKANE COUNTY PUBLIG WORKS
1026 West Broadway Avenue
Spokane, WA► 99260-0170
Dear Paul•
This letter is to confrm our conversation today and to reaffirnn to you that Larry
41son, with David Evans and Associates, will complete the computations for the
208 on the north side of our office building by next Friday, September 2, 1994.
This 208 has been added to the plan since the office building is not going to
have a metal roof Larry Olson has told me that he has been too busy the past
two weeks to comptete those figures. The office building does not bid until
September 1, but we did not feel that not having those numbers would delay the
building permd on our block building and kiln factlity
Thank you in advance for allowing the building permit for the block production
building and kilns so that we may keep our project on schedule
Yours truly,
CENTRAL PRE-MIX C-QNCRETE CO
~
Tim rphy
V't~ce~ ent
/dw
SPOKANE 0 COEUA D'ALENE 0 MOSCOW-PULLMAN 0 TRI-CITIES 13 YAKIMA 0 SEATTLE
WITTAL p3c~ lL~RE~ IVED
. SEP p 2 1994 ~
,
k SPO"rlE CQuEiTY Ef-JIGIi~EFR ~
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n rRO~iu sEUmcES coNSULTwc FIRn SEP D 21994 ~
OFFtCF,S t~V ORECAN, WASH lNG't~ON, CALIFORNIA AND ARI7ANA ,
WEST 110 CATALD6
srox~x~,~w~s~xcroNS~2a~ , SPQ~At4E COU~TY ENGif~EER
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009) 3174697 FAX150913Tl-7345,
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Project=~/~/~ 14
niita= DAVm EVaM Avn AMcu►M, Nc.
WOWoiwU
BQWSTRI NG METHOD (TEhI YEAR STORA1 DES I i3N ) PROJECT : GA`MX OOOE
DETENT I OPt RAS I N DES IGN BAS I N: POSTDE'J 1 A
DESIGNER aLSON
NUMBER DF DRYWtLLB P'ROPOSED DATE: 02-5ep-94
0 Single (typ ' 0 Double (type B)
Total Area tcall_. a (see Hi) 0.15
Time of ronc. ccalr_. ) tsee H1) 5.00
Composite "C" (calc. ) tsee Hi) 0.90
Time c►f CQnc. (min) 5.0o
Area (Acres) 0.15
L' Fac t or 0.90
Impervious Area (sp. ft.~ 4212
Vol ume Pr ov 3 ded 21,08: 182" st or m: 18:
Outflnw Ccfs7 0
Area * L" Factor 0.14
# 1 #1Z #3 #4 #5 #6 #7
Time Time Intensity Q dev. V 2n V olit Storage
If1r: r If1C.
(man, ) fsec. 7 (in o!hr Ccfs3 (cu. ft. ) tcu. 1`t (cu. ft.►
( # 1 *6c. ) (A*C*#3) (Out f . ) (#5-#6 )
5.00 300.00 3.18 0.4~ 173 0.00 173
1?~
~ 300 3.18 0 .-#3 173 0
10 600 2.24 0.30 ~4-% 4
15 900 1.77 0. ~4 239 U
cO 1~L~Q 1.`~J C~. ~G w".J.cJ ~ 255
~5 1500 1.21 0.16 262 o
30 1900 1.04 (w1• 14 d.5 / 0 ..67
35 :2110 0 0.13 i O« 1.'. 271 0 :'71
40 '>400 0. 821 o.11 277 1) -177
45 2700 0.74 0.10 ?Ba
50 3000 0.68 0. 11,19 : 35 ::e~
'r..J,.~~ J3 0 0 0.64 0.09 .c '34 ta 2194
60 3600 0.61 0.48 305 ~ -1-105
E~ 3 900 0.60 0.08 324 0
70 422 0 0 0.5e 0.08 337 C.f 33',
7CJ 4500 0.56 0.08 348 0 .3 4 8
130 4800 0.53 0.07 351 0 351
8s 5100 0. 5L 0.07 365 0 365
90 5400 0.50 0. 0-17 371 0 371
95 5700 0.49 0.07 384 0 324
100 5000 0.48 0.06 395 0 395
DRA I NAGE POND CALCULAT I ONS
Required qrassy swale pond storage volume
= Impervious Area K .5 in. / 12 in. lft. = 176 cu. ft.
provided: 182 cu. ft.
DRYWELL REQU T AEIhENTS - 10 YEAR DES IGN STORM
MaYimum storaqe requirPd by Lowstring = 395 cu. ft.0
provided: 192 cu. ft.*
*r Vol4 AI G w pS re Vi ~ed ~ PO C~ ~ `o r
e/r 74•'rd. 6 os.'•~ .~'ti . s P oA► d Vo/a A,r
~ G i /1 R d~i Ti e •fptAdicj/
•
T I ME OF GONCEhlTRAT I ON (m inutes )
T~ (over 1 and ) Tc Cgutter > ar eas "G"
rt = 0.15 L2 = 54 0.15 0.90
Z 1 = 1.43 0.00 0.00
L I (A) = 15 Z? = 5 0.00 4.00
N(A) = 0.4 B= 0 0.00 0.00
S(A) = 0.01 n = 0.03 0.00 0.00
s = 0.06 0.00 0.00
Tc (A) = 1.75 d 0.00 0.00
Tot aI A Gomp "C"
U(B) = 0 Tr fgu1 = 0.31 0.15 0.90
N(B) = 0 Tc(A+B) = 1.75 -
S(B) = 0 Q=C* I*A= 0. 43
Tc (t ot . ) 5.00 esz. r - . ~
Tc (g ) = 0.0 Intensity 3.18
A = 0.15e448
WP = 1.5194
R = 0.1043
~ V = 2. 59 Tc (total)= Tc (overland) + T-= (gutter) To, (gta) _ 6.31
Tc (aver 1 and ) = +:t *(L 1 {N / S~`0. 5),'0. 6 J O(est ) _ 0.43
Ct = 0.15
Li = Length of Overl and ;"low Nolding = 1.78
N= fr itt ion factor of overl and f2ow (.4 far aver ~ge arass cover)
5= averaqe sl ope of over Iand flow
Tc (gutter) = Length (ft. )0Velocity C ft. /sec. 1i'60
b= Bottom wa,dth of qutter ur ditch
il = xnverse of cro=s slupe one of ditch
Zy =inverse of cross sl c+pe two _►f ditrh
d = aepth of filow :n gutter testimate, check estxmate with Flowj
ArPa = d#B+df`2/2*(Z1+Z2)
Wetted perimeter = g*d+(l/s1n(atncltZ2))+1/sin-atn`1.,Z.,::?>>
Hydraul x c Fad i us =R = Ar ea/Wet t ed Ppr r met er
Vel oci ty = 1 . 486/n *R-` . 5E7*s . 5
F1 ow = Vel L C 1 ty*Ar aa
n = 0.016 for asphalt
s = iGngit!adinal slope of qutter
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Rop'F AREA 4212 Sp
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Date = DAVID EVA1V5 AND ASSO CiAM, INC.
WOWt'rwo
T
BOWSTRI NG METHOD C TEN YEAR STORM DES IGiV ? PPQJErT : CPMXQOOB
DETENTIOM BaSIN DESIGN BASIN: POSTDEVIA
DESIGNER OLSnhI
hIUMBEP OF DRYWELLS PRC1P'OSED DATE: 4: -Sep-94
0 Single (typ 0 Doub1e ttype BN
Total Area (calc. ) (see H1) 0.15
Tzme of Gunc. (calc. ) (see Hi ) 5.00
Gomposite "C" (calc, ) tsee H11 0.90
Time of Lonc. (min ) 5.00
Area (Acr es ) 0.15
C' Fac t or 0.90
Impervious Area (sq. ft. > 4212
Vo1ume Provided 2t~8: 18:~ st~~rm: 1s~
4utflUw (cfs) 0
Area * C" Factor 0.14
#1 #3 #4 #5 #6 #7
Tzme Tzme Intensity 0 dev, V zn V cout 3"torage
Inc. Inr_.
im1n. ) csec. 7 (in. dhr a) t cfs ► tcu. ft. ~ Ccu. ft. f(cu. ft. ~
1 *6~.~ ) (a-I&C 4#3 1 (Out f . *#2+ (#5-#5 )
11~
5.00 300.00 3. 18 1). 173 0.00
5 300 3.18 0.43 173 0 1~3
~.0 600 2.24 t). 3c~ s3: a
I.., GV 1.77 0.24 .~39 0
20 1200 1.45 0. 2~0 255 0 ~55
25 1500 1.21 0.16 'Z 62 0 192" E. z
30 1800 1.04 ~.1. 14 .6-6 i 0 .:'67
35 21~.~n 0.31 0.12 q : i Z
44 224 0 0 0. 32" 0. 11 ~77 0 .~?7
45 .2?uc'.~ 0.74 0.10 280 0
50 3000 0.66 0.:19 cJ ::85
55 3304 0.64 ~a • o,3 ~94 .i .4
60 3000 0.61 0.08 305 UZ 0 5
65 3900 Et~ 0.06 324 0 3~s
70 42. 0 0 0. 5e 0. 08 337 0 337
75 4500 0.56 0.02 348 0 348
sU 41300 0. 5u 0.07 351 0 351
85 5100 0. 5~ 0.07 365 36%j
90 5400 0.50 0. 0' 371 c.0 371
95 5700 0 . 4'3 0. 07 ;84 0 384
100 6000 0.48 0.06 395 0 395
DRA I NAt3E POND CALCULAT I ONS
Pequired grassy swa? e prnd storage volume
= Impervious area x .5 in. / 12 xn. /ft. = 176 cu. ft.
provided: 282 cu. ft.
DRYWELL REQUIREMENTS - iG YEAR DESIGN STORM
Max.imum storaqe requzred by Powstr ing = 395 cu. ft.f
prov zded: 182 cu. f t.
~
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ir -~•'ia• bos.•A . 7-h,-9 ~Vo M d Vo%►A,►a w.' 4
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~ G II weGi Ti'o.~ ~'O ~4T1 •10►eA~,~ ~ re yi ~d~ d.
~
~
TIME OF CONCENTRATION Eminutes7
Tc (overland ) Tc (qut t er ) Areas "C"
Ct = 0.15 L.2 = 50 0.15 0.90
Z1 - 1.43 0.00 4.04
L1 (A) = 15 = y 0.40 0.00
N(A) m 0.4 B= U 0.00 0.00
S(A) = 0.01 n = 0.03 0.00 0.00
s = 0.06 0.00 0.00
Tc t A a = 1.75 d 0.00 0.00
Tot,.~l A Comp "C"
L1 <Ety = 0 Tc (gu) = 0.31 0.15 0.90
N(B) _ 0 Tc kA+9 ) = 1.75
~ -
S(B) _ 0 I*A= :0.43
Tc t t ot . ) 5.00
. ~ - .
T; tHa = 0.0 Intensity 3.18
A = o. i..i8448
WP = 1.51'34
r' = f1d 1043
rU = 2. 6`~) ;w
Tc (tot aI Tr- (c.ver 1 and ) + Tc (gut ter ) Tc(gu) = W. 31
Tc towerland) = Lt#(L1*IV/S'`4.5)"'0.6) Q(est ) = 0,43
Ct = 0.15
Li = Lznqth of Qver 1 and r1 ow Hon1 dinq = 1.718
N = fr Lct ion f~~tor i::J overIand flow (.4 for a:erage grass cnver )
S = aver age sl ape of over 1 and f x ow
Tc (qutter) = Length (ft. )/Velocity (ft.lsec. )/60
S=$ottom width of gutter or ditrh
L 1 = i nver se of cross sl ope one ofdi t ch
Z2 _ inversa of cross slope two a' ditth
d = depth of flow ir gutter (estimate, _heck estimate with Flow)
Ar ea = d*B+d ',?/2*t ~ I +z'2 y
Wetted perxmeter = g*d+(l/sin(atntirZl))+i/sln(atnti.'z^? )r
Hydr aLtI ic Pad i us = P = Ar ealWet t ed Fer i met er
Vel oci ty = 1. 48fi/n*P°'. 6Q7*s'~, 5
F1 ow = Uel oci+.y*Area
n = 0.016 for asphalt
5= longitudinal slope af gutter
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SFOKANE ENVIRONMENTAL ORDINANCE
DETERMIIYATION OF NONSIGMFICANCE
Fde No. 94406304
Description of proposal: Construct a Concrete Slock Manufacturing plant, office and storage areas Approxunately
50,000 s.f. vf building areas will be constructed.
Proponent: Central Pre Mix P O Box 3366 Spokane Wa. 99220
Location of proposal: 163 10 E. Marietta Ave. Spokane Wa. 99206
Spokane County, the lead agency for this proposal has deternnined that it does not have a probable significant adverse
impact on tfie environmeM. An Environmeatai Impact Statement (EIS) is not required under RCW
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. The information is available to dhe public on request
There is no oomment period for this DNS.
[X] This DNS is issued under 197-11-340(2); the lead agency witl not act on this proposal for the required 15 day
review period commencing on August 31, 1994 Comments pertaining to this checklisVdetermination must be
submitted/recerved no later than 4 00 p m., September 14, 19941
Respoosible Official: James L Manson, Director
c/o 'Thomas L. Davis, Land Use Planner
Spokane County Division of Building and Safety
West 1026 Broadway Avenue
Spokane, Washmgton 260 (5 456-3675
Date August 30. 1994 Signature &.~ft
You may appeal t6is determination withm 10 calendar days after it becomes final:
The Board of County Commissioners
West 1116 Broadway Avenue
Spokane, Washington 99260
The appeaJ must be submitted in writiag no later than 4.00 p.m., :Se°te_m~ber 26, 1994. You shouid be prepared Go
make specific factual ob,jections.
Contact above respo►nsible official to read or ask about the procedures for SEPA appeals.
:~**~s~**:~******~s*************##****~*:*:*#*~****s*******
A copy of the Deterznination of Nonsignificance was mailed to.
Spokane Couaty Engineer's Office Spokane Counry Air Potlution
Mr. Bill Hemmings Mr. Eric Skelton
Washington State Dept. of Foology Fire District No. 1
Environmental Review Sectioo Mr. Paui Chase
Ms. Barbara Ritchie Applicant
Spokane County Health District Central Pre Mix,
Environmental Healtb Mr. Tim Murphy
Mr David Swink
Washington State Dept of Sociai & Heatih Services
Regional Off'ice
Mr Tom Justus
,
` SPOfGIfE aMlf iROloITAL OROINAm
[VuC 497• 11•9601 Ueelon 11.10.230(i) R E C E I V k ~
AUG 2 51994
w.qok of ch.ekllsc: BUILDIMG & SAFETi'I' fl0. -?=P° 4--Oil
thw Scact Emrirormenul Potler Aet (SEIA) erantoW 41.21C aN. ►roqlP" att ,ovenogo tat aqencte: to cmnt4ir tft entrofmntsl moact: at • ormsal
Otfpm eaItirtq Meltions. An ie•ironanut tawet Saamnc IE:St awc ee Qreane 'Fo► ati orooo"ls alao orooaet• •iqnif~ewe .areno teoaees an
t1a vwlftr o1 tne wwlrormnt. The owoost oi thls cMCltlltt t! !0 QevrlQ* idorpttan W At10 ym un0 tM tqMep fQSnlIIr hoati /rors yonr
Oroaosal larid to neuee or aro/a l.oaCCf Ino tM pro0osal• 1f IC CM Of 4m1 4l10 CO Re10 tM aqMCy 0lCtde vMN!► YI $tS f{ /ldttl►e0.
lescroetton Ior Aoolleaats.
Tbls envtrproontai CMCRItst asts y0n te dtiCtlO• t0of 04fit tnfamatlOU t0aut yQt► 01b0mt. SOrtr WMt&i plaete: Y=f (Aff atmlltt t0 Qecs"stne
whKhlr tl1o en1r1t0elr!lltal 1apaGtf At Yditf' Or'QOONI ih t1ql11ltCML, rlOnlrtM pramtiQ11 01 W SZS. AKw CM wmtlQtl= 0lhtlrg vIpa tM aost
preetst te/onactou tnarns or q/re !M ONt defCrtOttals Ya CiA.
lOY aWt anlwR QaCA Qufltl0n tCtttratRly OO AHfY11y, t0 tM !!it aI y0it► MOrltQfjf. tA NOft Gb!!. 10 i110Y1d to i01e tp q1p►a qle 4tNlCtOAf
FRa y01tP 0to OOtlt^/atf011t Or OrOjtCt O1eM rlQtaitt tllt eMO t0 siry •xOtrb. II y0i{ r'N11r 40 AOt tnOn Nf mrf/. ar I• • avneroe aas noe 4001.
co your oraootaio r.tte •ao aoc tnor• ar •eoet Roc dop1y.0 Wmlew sot+ren to tft awttlpns rwu aay sfat0 uaweafunr aelars lattr.
Soan owstloes Kk aeort qo"rn.MUl Kgnlaetoes, suo as tenlepo sbohllins ane 14nowt dnlqtitlons. Umr lMm on"ttaas 1t rou ean. it yon
Rare orosien, tM gowroental wenetes uu asstst you.
TAt qieetltst Rw=ttons tooly to ai1 aarcf of yw oraoosat. or" N yar otas Lo do !Mr ae► a ptrt04 M Ctet ar ou a1Ntrent ppeti= o/ faed.
Atuch aar aQetetomt lMor.~cfop we *IIt eeser+ee yaw orooos.l af Ic: ee.iro~ent.l qfem. ne, yhncy co reioh Iov sue.ic cats anetlofc ear
ae you w oso1stA yaw aen+.eri o• orooae aa0ietoeal fnlorweroe ruieaslr retsu0 te sscNSteteq it cpeM .or ee feguuif teant &srvso hoact.
Iha oI tfta11st fof nonprojece vAOesait:
CaNolett th11 041011ft fsr nonorojtR oroooUlf• Mn peoNO oAtttM 48110 autrwI 'sott 00t 001p'.
ri Aoocna, cowol.a che wrnWarru sKW FaII 04HoW Crcmauue 51.
Rar noxoro2eee aetfaes. CM rNfrmff +A tM CMCtiIt=t CO LM am 'RmjlRolo 0t00lfCtut'a !!10 O0r4OMLy 0► tfte {I1QYId Npu0 tf 03Iti00sa1'•
•orwosor.• ane •Nfectea qooqnontc ara.' nsoeetl•ely.
4. da6RC!&x0
ot araaosea orohes. tt M1eu0toa Canerete blxk manufacturinar iolant/Dtyrnix caoncrete packaging facility and warehouse including storage yazd and office building.
i. rase ot 4oo11eane: C/O T21'1 MurpI111
1. Aeeren um oeom. Mu.a► or &oo I le+nc or comace os•soA: E. 54118=oedwel► Av+enue, Spokacle, WA 99212 Photie: 924-1720
aace caeee tisc oreos.ea: A1Dr11 30 f 1994
1. +1qmr reaw:clnq cmaltst: cbnlranA rrrtr+tv niviainin nf Ibl91Ainn
6. ProvQS.a cimag or scoaa~i• c+ncioe+ao op.s+ng, i• .astwiol: G&nc[, site armaration an,d foiuidati.ons-Surtwer 1994
Assgnhlv of buildinas and eauinment - Fall 1994
Occupancy and operati,ons - Fall 1994
7. a. oo sm R..e aay o1a" Iar kaat asttetoea, mmsNse w MaKr wtiviq ftt4w a or CWneae sISS Mis oraetist! KYM. emu1p.
No. Pmiect is lfmited t+o611.047 acre vareel bo be soauired fzSpokane Itxhmtcia1.'-Park'•<< ~
.
e. oo yor aw or 44" ooctons an tua nssm or ayecom d an ormml? tt Jos. .s Vt..
_=licant owns existinc cravel nit site south of Sookane Internat3ona1 Railway t=`acks:,
a. Wst uyr ee.+*"sncat tabr..etos ra a+o. ~ a+ae m enn srosnr, a►.1t1 0a ow+r.e, etneetly retaceo so aai• srooosat.
The awlit-Ant is curxentlv fn the crocess of submittinEspec if3rcati~ons and appli,catfons
to the Svokane Crcrtmtv Air Polluticn Oontsol Auttbos'ity on emiss3ot caatml devf,ces and
tEChtliql1eS aSSOCf,8t8C1 With th@ C~L'8~Ot1 Ot the fBCiiltY. A 3tOIm W3ter CrSiQ8g2 o.LBR
1S b81t1Q DL~DSZ'O~d tiV DaVid Evm3 & A:~OC~SteS • ItiC.
.
~ • ~yss ~ss4.~~ 4619 P/,r~ik ~t~iri • ' Alw
~.J Qa b 1
17A '8'l c~n 646j~/~6 ~ y~r Av~rtKd,~/
~ . ~
C~~ ~ !~S GrL~ , ~
. ,
MAQb DRU0lM& 010IIY=
(VK 19t- u•b60) Soecioo u t0.:30M
4. SACMG90M (toattaevl)
oo yen mou .nmen.e apptieasloe. •n »edtas toe 9o94esO.sd 40PCOWsiO ot oed.r ps"e0419 ateeaetf +jt.ccteG en. oft"etf eo.ased by teae
7tvoos&l• Ll yes, oupVls. .
Aenl icant L slitrnitting a he=t variance reaumt for an e].evatoz leg and bin.s, portiAtts
of which will extend to 95 feet iri heiqht.
to. u.c sos to.afo.oc aAio.aLs or p.e+.tes et+.c r&u se a..d.a ter yoas acooosat. s: wore. Blti 1inct 21tS r SDOk811@
C=t,y Divi. ir of BuiLdipW Heiaht var.i,ance. Staokane. CountY Zoninc~ A3ju,stor;
surface water drainaare lPetmit s Parkin9 10t laYaut, access points Spokane County
Englneer's Department; various air quality reviews and permits. Spokane County
Department Poo11 ution Ccmtrol Authority
tl. ct•. . tiet.t. aMrlOu de.oNeelon of fmf vlooe L. taalndtag atr oea~ew o..s aa0 ehe atso of cuw prorae saA atm Tb.n sa satiai
ouescioaA Iaeet is tlu• eesn111tse eWt us yam to NsnelOe eoetala u/eaas o[ yws oco0osal. Tao do eot seM Cs HDrt aAos awwft os this
Pato•
-~7 ~r~,P annl inant see-ks to dpvel,oo an 11.05 arce site for a manufacturinq Alacit with two
~ •
production activities. The north east buiLdings would accomodate a drymsx fac ty
for s acking concrete, including storage. The Sauth centraY. buiiCti.n9s woul'°l Pzoauce
coRcrete blocks tocfether with kiln(s) and blxk storage areas. An office and l,oa+ding .
area wauld occugr the front. Agorwcimatelv 50 , 000 sar. ft. f ildinqs would be
oonstzucted an the site. S• ~ ' 1ve
.oaactoo ot ea. Proposa►. 61+O wtttetsat idtoreattos Car •persos to odssaaed tt» oftCtu laueioa el fout pteo"o0 ato)ta. taeltidlng a 40or
•enee aderou. tt m•, see Nacto% tw-AlD sm esop. !e tawe6 tt •ptaoeMl rwid oavt o+rr • ftege of atw. 1ee+4de cAe eanse es
lonadatt4s ot dr Slc@lel ttovtM a Lafv MgCttstbe. •lte p4so waLatly sAt4 ad eaMearRte ma0. lt re.aoe.UF .•atLSi.. Wbtto •on
swata w.aate aaf ptaso ewattW sr eee .geaas. tm .M moc crtutsM ce awilasco aw oe es"ttd alsas westeeee wtcA u+r aOMtc aootieacten
relscee to catO easatttst. ,
c_; tA aerlrp-qc s 16310 E_ tHarYetta Ave. Thg pite is situated at the South edQe of the
Spokane Industrial park between Marietta Avenue and a spur connecting to the Spokane
Internatfonal Failway right-of -way. A complete J.egay. descriptlcn anct maps o= r.ne i1.047
acre oar+eel aaon~ the buildinc~ peacmit recuest the site is situated in Sect3An '12. TWP
isN R 44 EWN. ,
l3. 1w• :as $supoeM satta tM Wasels tuw &"te• feti«tw uw (bAi• `i» 4osral Uwr feMee nts• :100 tttoelq SeWr %fVtQ• Atp' 'ir
t::7 0! loexaoe• (fNS ttoluse Cway'e AL1 3wt1oy :WW %eLs tot %wodaefRS1.
The aite is within the ASAr the GSSA. and the edqe of the PSSA, but oufislde the City
of Sookane.
~v ~s aaa~~e ~t ~.sw~r
a~vteo~s. a~a~s
a. Gseesl togeetost" •t etr •sa tstrelo tLt. eestt
~saer~
The site is f lat to qentlv rollinq with 1 to 2$ grades
~
s. +\as t~ ew ~s«f.~s .t+p~ « a. .tcs :a~e+a~tfa~u ~.a+.~ .LN'•~• ~-SS ~he3ri 2%. •
axg pfor a snall knob neer 5th ST. which will be graded
a. Au gowe+a1 ty}es untL .a :aai/ m aen .ts. tloe qarwLet sLys ow, gawt. sase. .mst•
?ar br~ t!r KdoetaoLsnsai seLL. speeLEf tns ad mta OW ottr lsesLtrl.
GaAr a vlacial aut wash soil
.=icai of the floor of the Spokane va11,eY
.r. Uu+. ..d.e. c.as.a... .t uss.es et raaw .oi3s Ls ee. tswtau •tasateT• ae
s~~aste~.
NhnQ u~►ro Q~garyl1°
. (VAC 197-11•4801 See:fon 11.10.130111 VWANZ Vnc=QCu. oaociu+a
e: O+rtaoMMAL L0MMteaaetewej
EraiuatfoR FOr
e. Oestrtpe eno puroo=t. tppto and sporvatweo owntftfes o1 aRy tilltsq or qraal,eq praooiec AqMner uu aety
teaie,u :auro• or rttt.
Ec et i na ma Fsri a 1 nn 4 i tp wi 11 aradLaci and rpuUrkW
to aravide foundations for buiLd.inqs, carkina (see attached)
l. Corla erotion occwr u a rewlt of eltarte9, eoastrvztlons or ase? tf to. Qamlly dlsoMee.
Some wind erosion couLd occur as the site is qraded.
Gradina and aonstnicti,on activities will caonfozm to tYte
S.C.AP.C.A recniirenents.
q. AboUe .nae oKCant o/ tlet slee *Ilt 0e eo•ered rttA 1ner+tmis surfaea aIter Snehet oatade•
troe (tor tuaolt. awale or h4f141eps19
AAnacox3matelv 50 LQf tb2.pite will initiallv b-c oovered
with imoervious surfaoe areas 3ncludinq builings actd paved
surfaces, 03xxete block starage areas may have roofs installed
at- a 1 ater da~
iro9050e 0e11110nf to Meeua 00- control Moiton. or oeMr aDetf to aK pru►. 1t tnys
Cradincl & nnnStnir!tinn ari 1 t mnf= tca S.GaA. ' ts
The camoleted pwiect will hav+e naved and l,andscaped(. areas
oonfOZtning t0 "208" Sbornn water requirementS. ~
xh,c :xoe ir m,urons co tiu .ir .auta .esult rrw cft 2moout t~.~.. ase, wcads~t~. aaon
fRaustrtal. .opp avsss twi,eq tonstryetton ana .w :he noietc ts eaotetea3 Ct shr.
yeMrittr deseriet ana ltvt mroswu ouetltef 1I tRM16
Dtu'ina oonstniCticxz _ srute dust maV. be:nxaaiuCed h'v natl.i.t.i~teClt
operaticns. The applicant is currently submitting detailed
information to S.C.A. P.C.A. ? see attach+eda ~
A*. :MM u+r 3n•,ou swiran or ~.~u~o~ ~r aao~ s~+,c ,t~~ yar o~oa~• tr
qNSerallr atscrlde.
The proiect is at the edqe of an establised industrial _
d.istrict. Th+e site is within the non-attainment area far
carbon mannx:Me (oo ) and particutate cnatter -M) adentified
bv the washinatan State Denartrrient of Eooloc#v.
C. ormsee maasuret to reauce or eontrol Mtttoet ar otMr Imatts to atr. 11 tev:
-D~mlea sWrfc s wi.thin the Droiect will be ,aav+ed vea,e s.e.A.P.c.A
mm? *y+ents. &pligpnt is nrepari.na a"Atotice of Cmstrution"
f
or iooint sources with3.n the manufacturinq a-*a~.i~on for,tcilns, ,
.
storacne bins r coanvevors r elevators ? exdzaust systems aitd other
dust qenerators. (see attached)
3. 4ArO
111 snm wr sntae war body on or tn sne t.rql.u .1ein/tr oI tM Ma taetwtuq rwr-
aowna ana tetupal ssram, alc.sar. 4tete aeeas. .~ttuast! tt rme ontem0e mt ad
oro•iao nsrrs. tt mroQrfau, taa mat stnus or nrw It ftors inta.
Thjj!!j2gkane River is l,ocated awroac3matelv 4 mile
southeast of the naroi ect .
4411 nu 3nrieec nawre ay .o*e o.+Ke fa, or aa,cm eo twia++s = r..c1 se. s~serro.a
N!!*S? :t yo. 21lefs lffQrlOf as 4ttm Ar411401f 214llt.
~
~
~ nvtaR zmvcwRavut aontwa
' r1AC 197-LL-9601 4Oettoo 11.10 :]0(11
A. , [MRROMCCRAL CLilM= taenetnwa) t.atwtton /ot
11geOt7 940 OalF
(7) latsataco tlue aaeunC o[ :tLl 0e4 494490 SstOeiAL edc .ooM b+ oLAaed ta of ewow~ teoe e1r
wtlaae weOe of NsLada Md todtaatq eM ~rea of etr slte ttrt would be atl*046. Ldteacs
tl+e saueee of lLll onteetal.
lvone
(4) nttt ehe OeoveGat s"ath wstoes totee vteWaq16 ss tlNaLsas: Qlw •P"ed daleefv~
tUt1. pul9oM* aOd 40PlosoMte tYe0CtLteso tt 1f1tAelt.
bb, the site wiU be arsded to canfine surface water runoff
to the aromrtv. Whatever runoff canes onto the side frnm
alioininq pro~erties will be impound~ed and disposed on site
usina 0208" drainacze swal.es and d=vw+ells.
(S) 3wo am a[oosai iw vtctua a 1"au tiao/ 91ats• U wto {acacUa u t1r Mo Au.
_lb -
(S) Sins Ow peepml te.eiw suW 41sa"es vt wote war►als ce wnrtseo wtm! t! W.
daaastbe ebo eM el raee aot sstlelpstN M4t~ ~t 4UGetvtte. .
No, the project will vonnect to the Spokane Industria1
Park sewer system in Maretta Avenue. Any waste rteaterials
fram the manufacturing opecation will be pre-treated before
disposal. Most of the disctbarge will be sanita=y waste from
the office area and work stations.
e ceo~,~e a
(tI All lemadweet !e vtehdfwo, ot wlLL wtet be uaeaastN te growdraNt• 6tw lownl
doseet9cton. Oeeeo", ad GAeesWtO qusstitlos. tt taors.
_Nn lU;nmipr-t wi 1 g_zved ta_oublic water fram the
Snokane Irzdustrial Park.
aserl0e wsea aaa►tat ttvc vtu 0e IireMtW tat. eer irwAa tt+en nvae eaetS of oeftr
4411ltae► raaeS esesoru 14ai11e7. 3499e00 COS prtu •tu of sM 4709410. eee sr96e ot
hms.s :0 5. ..nfta (tt 40ptiusls) er ter a+sme at p.eseas eer nsewtsf ae+ *ama.t :o
fftrl.
8 to 25 peoDle will be working an the site depectding on
shift allocations.
(7) 0el¢l10e siw qstAs• otAe! :l1Y COON tlolior fat tlw atNYl !f YLtCay Wm•
la.tsll./ loe sM Rtpm« at aleswepsm lL+W faLn au g - I wstse, (LeaLiM• .„e~ .oeM
u t0a" [ee ttr dtslwGOi nl sun wt" er destew tts tlw• &est=). 09~asiM dr tm d
a1►stss. :e~ 4mams of aaatsUl co se 4ts}raed o! Uewp chr mcan mt tew s"o• of usuKaL
Ltalr :o as dtspee" s! (LrstWlq 0640e94" Miat on Mse ctr Asew WdwesetslY sw=p
Gel:la of .a • eawLe el :le+altSattU aael•tefu).
_v flnn rain er wash svstgn will oonnect to the sanitaZy
sewe~r with or+avisiAns fo~r t~atment prior to discharc,~e into
the mub].ic svstems. Final design of the facility, includ3ngka
wash areas, has not been oarpleted to date.
(i) Jlll s01 Ctfsieals ttometatit ORssLe Mlweta d/esroLws :oda! !o seetti la aIrw-
:eoNoe of maddsnwait suesSO esaW! U ras0 4"* 04 qas=&Cfu dMuTLL A31 10
seoetsi
The manufacturinq uses lime derivitives ard other binders
togettter with sanc#, pLms~ce, ana gravel w proauce ooncrete
block and dzy mix concrete. Ahozart-iaus materiais latst
accvmpanies the pesmit request. Mo petroleum products
ara stored on site except for lubri?ants and oiis.
~ sN.na~ ......iw+n..+.... ..r.......~
. (MAO. 197-LL-060) SOeeLos il t0._30111
f.' L!~[RC~ Q•0'~:7 teaactawdl
2'VOLuSctoo /oe
Aigsoa7 0~• Oal~
(S1 V1rt irOUoei+IS arawtes wKL3 be ta1ue to laav14 etwe lsoW os wILL o[ a! ehodeate
seoead oe wed sa Me wttt aoc 'H allowd to peeco4te to t[vasdwtet (cuo tmtuft• essauea
to two c1esi4ats wt ot dlsposal syoce~s desaHOed la 1e(2l a4 W7)'
Ttie olant will be desianed to allaw readv nick,ufl and
rernoval of spilled materials. Plant areas will featur°
ooncrete floors with designated storage ar+sas for products
used inttie manufactur rtjI °f cLrv mix and mnctetp b1 WjkS.
e wc.e awtoll (toeluatas •wea rac.el:
(1) Oeoeet0o etw wusae et euoot< <toeludlog •tots vaqel seQ meao0 0! taLLmLoe ma dlsposal
tt any tioalnds anantitleo. t[ haeral. Wbon KLt eist• usut llon• Ytll tltlt intee tlor Lato
ocMt vatete• Li w. desaetbe.
Surface water rurtoff will be =fined -to the site usinc1
"208" drai.nac~e swales and drywell.s. ,
(:1 ltll say ohwaleslo be •coeed. RsndlM ot assr oe cAo site te • Losrttoe ar[e • qiLt oe
is44 utlt etata to wetsce or gessedracss es co •stom rac.e alOo.st .r.e• at.eh."tees to
weteee oe =emedNees•
No. Any spil3.s will be typically dz,y mix or slurries 'ch
can easily be picked up usinT shov+els and bur.kets
, . ~
a.• " . . _ .
t31 Caula Waotq s@arl4l4 MeeOr geowd ot wrtss• %&unt Ll w, iscataUT QgoeKOg.
IVo Anv ani 11 ea wrn i1 el hp n-rm f i nprl tn nmfi rrt i nn_ nr 1 narlf ng
areas which will be uurederlain bv concrete or asvhalt
allawing uarvediate cleanup.
~ trooe"d ss.ga«a to redwea oe ceateel snKue. itoum. "W eveetS +aae sawrace. 1e aA (lt
: eb. $VOoe•N 46e142 lte• rttbie eeA Aa_!R•r lenstetw Ar.. be .q.etallI alre oa sqLaattaaA,
s relactas to leatltetss eooaaeetag fsat" 3MO. AM. •nd 3at:) of eats a1welLLtala
__a ° ?M° ;•t•;•••• maf•in+_• tstexn W11 ►0 Aec~,ar~fnr ttto_s`2
~ -
to reduce the 3m,gLcts of sMrfacp water ivnof£ and
collecticm on the aquifer.
<
a OJNeII or ettale sy7e a! +egetaelon !auod se tlr Mos
X a.eld„me g=a= .►d.r, a.ou. .ao•a. oah•r , Per3meter landscaping on M2u ietta
X.M.nn.e c:a• :u. Qow. ,te.. ,a+.:. Pesicteter l,artdscaping an Niarietta
.IL6114111". Per3meter landscaping an Maristta
:•..o
a.asor..
erop oe ttata
ws .etl al.at.. aaetal. eiasc.eem. eutlenss. .tpm a.eww. ows.
Wur *twse: 'Ancac LLilso wusaN. "Uel1. oemt
oeamt :ypes o! wf16saatsa.
%k.e; Md .a. ..«.it at ..ge"cUts wLu be rwev" cm .Lw..r Vbst of the veaetation
on site, except installed lardscaping ancl grass areas along
Marietta will be removed to accammodate the manufacturing aperat3ron
C. 4st :ltseapaed or sdsmns aosoLs tmo.a to !o as er eoas eam "sa.
Nane are knawn.
rsoOOSN iaease"Lag, vw ot ortsw 'lasts, or oeaot saaao" to ArsMew os *aosaae wpue{os
Oe1 me ette• &t sort
Lndceanv r_ *-as vid 11 _ i nsta Tmj_ tn s~cr~rm at~a
drainage system and provvd° perimeter land.SCaping to
parking areas. 5
.
, (YAC 14•11•4601 Stetior 11.i0.tl0ftl ~ ~ - -
6. .lrytii0NlElil'AC 0.Qlf1AS tcontiawol
g~aluaeto~ va~
s. +mtNUS Aqencr ute aatr
Cfrtlt Anr Dlyds 4rtd tntsatt .atch Mve baen oosermea an or nrfb tM sltt o► ttt tnors t0 0e on
af near tbe tlts,
pl►OS: Q MrOn. "qle.(Znsotr othtt
arr~oatt. dotr$ bt1r, tit. 0e4r . OtM~ SmEl1. RaRl81.l4
/l;n east. s41am. tlut, haniaq. tneli/lsb, oeder•
other•
e. List tny tnrsstenN or endanqtree toeeto= trtarn to be QA Qr Rer ae s}tip.
None are kncywn ner Sggk = Couey Data At t a~
c. ts cna slte Oart ot a efqratlon evu«t tf so, mlatn. hb. The DZUIECt i.TLM
urbanized area_includina indLstrial _ fani l i t3e_
a. Proooud ceesares to oreserw or s+aaRCc +f 1di t/e. 1♦ anr. Non
.
i. '!ISGT 40 IIANRAI. aESOUAtES
af e*erqp Se{ec:rft. oiata►a1 94f. eaQe ita►e. to1ar1 •111 60 osee aant w
sRe caapietee aro,yec:'s erem neees' Onser+e. .n.aw ie w+ il o. usea ror ,aaeq. ~teqlsC•
cur,eqo ets.
Electricitv will be used for liqhtinc and mschanizpd_qperation
Natural gas will be utilized for space heatingr and as a h,eat
source tor the operation of the various (see attached)
ftusa raur a.+ojw. ,free: u+• sose+c141 us* at atar "wg ar aqjaeent OmeKtlfl i► io.
qener•itr se:crsee.
No, the project is within a developinq inchistrial area.
BuiLdinas are set back rnenernuslv fmm . adJoining_pro►perty
lines.
C. +hat toRei Ot eneW .antM►atfen Ieaturet a►v ieetuasa in tnt olens of thIs orooeuf3 LEtt
otRor araaosea aasswes to Ptoee* or eoetrol enev Ievsctti. It any.
Th biiildingc Wil l can ntm fi~alM1 it-abl A Anarrni Mnanrvatian
COd2S.
:MreROrwpetAL vEU;H
A" a+y e+g+rwmne,i "alaR 448aros. teelnOtnq as0osm to tosle CmslCSlto n=t 41 ffh
ano tx0to=lon. %grll, ar nataraws *asc*. Nat coui0 oaur at s reuit o* tMs arvoo*4i3 It so.
aeurf as.
[1Ta tral ~aaS w;11 ha »qAr7 in f-hes qsarin~ua irilns accnciated
with the manu€acturinq one=ats.an. TtM Zroduction Of
dry mix cement products and concrete blocks use binders and
additives which have very law potential for fire. A
hazardaus materials last accampanies the application.
I11 kserlft* toefal tmvqtfty "nfets dMt atqAt a# nvvsrld.
T'!'.Mxn7 eGt will Reed ,to cortfonm t-m a= i rabl e f i ra
and safety codes
s
ltotan uttiamaatai. oaatXA0a
' (vAC W-u-960) S.eciae u :a. JOti}
e. C1vLSOt~laL ~.~tS (eeactaned)
Swalu4el9o /ot
A~~se~ ON OtLL~
S.WI~OlQdtfAL ~~L.'8 ttoaclau~dl
M ltaposof adawn• to eodwee og eoaeeot saftsonowaul bmaltd dwda. tt sems
The oneration will conforn► to aonlicable fire and
safety vodes . A hazardous materials list acccw,%MMA &A.es the
application.
(t) Vlut c".t ot set.. 4st69 ls tM 4td WUeII w? 419Oa fftf gesrat (tos ~Les lt+atcbe
eqnlpsac. opaneten. atMe•
Tt, =Jer_ is at the edQe of the SmkAne Itdmtrial Patk
and adioins the Spokane Internatianal Railroad. A concrete
tie manufacturing plant is situated south w+est of the project.
t21 Whae aad leveLs ot aolae ve&la be ne.atb bv oe aroaLt.d wtes e1+e irs}m om •
el+oet•tees oe • LoWLoes l4sl6 (tos amp3as te&!lta. aenatedeslos, apacatfas. otlrN' tdteate
wYC ROe1C• 401M vO"d COr te" C1M •iN.
The operation will he 24 h,ours with Larger shifts an,d
activa.ties dursng daylight tvours. No-Ve wi~ gr~oduc9d
tyylant oneration and loading and unloading activities.
The project is in an estaSM"rved anat zo - usfr3.a1 ar+ea.
, -
t31 hooosed a"Ma ee rednee oe aoaecol nota tsosaes. tL sa?:
Manufacturina activi~es will be oonfined to buiLdina areas.
L10 %Aing and unloading activities will be eonducted auts3de
a. VbGt to :1+6 eutsenc "0 e[ G1w ait• 4a0 8430eNSt peo"teua•
The 31te 1S VdC3rlt. SL1rrdUtlClj.[1g LLSES ( 8£e AttdChed)
~ ~taa :M Otto !Nn wad :ot 41iKarlea[s! tt Go. d~~oetD~.
tvot in recent years
e Seseethe u+y ocrWtan• oa :ft ute NnnA
d vtii aay .cruesun• !e iasollSe.eS Li .o. atuQe! NO
.
Ylac e. e!N eaetsac smlag eLsssllteaetos et etw .tc.r a b&= 4 ?tr~tl4 el
r-a t-EW77 T
vMc to tue a.ee.os eaarsatruat•o aLa asugeacses od sem .Lulp nelustrf8l
i. .Mtaeael., vwe te ssr euemese .mnlted racor oaw= w"Pmuo sf eea fuei N/A
4. Hu asi rse o[ eno sm b..s e4mttUa r u'ssRt+ossuscaW eswaluw' atr! U
avsoL4
No, per Spokane County Data Atlas
"Peowauly aar aan vmoL rwLO ns1" or wsti to t0m ea4L"w is+lea!
Th_` C=1ptEti 1em).ev 8 to 25 DwDl~.► oet
shift.
(YI1~ 197-LL•980) S449Loo LL.tO 230(l) - '
l. ~ttAt@~tat Cu¢!RS (aoaatao.d)
:•nlaatL,oe toe
Agaac7 0as Ooir
Aqaeosi~tal7 hov aany 'qopte vould tM eoVIVl4946 peGj*et dtSplae*t --JMWo
t ~eopo.~d s~ssrn• to s.eld oe tdswAr dLspLseMns tmp"to. tl aatt ~NQpA
tcooo.~d ausuca• to eawce tl+e Osooo•al i• aeMM4014 virJ alO" sai 7erpaeq Ld awe sal
~L~a~. tI aats ,
Confornnancewi- th -Rnnl t mhl p h+ t i 1 ri J nQ _ f i no anrl -Sa,f rrwi,as .
f t{QOSL't~i
~p0e0sL~u1~ ltev amy raLC• vwW 0e pso.ldr. u saft totLes941 slwtlrT UP►. aMt1,r. e[
Lortatame howloi.
~
b. Ap9eoslmtell twr MDT 921e4• tC aaf. roolQ U 4BltIde149641 LsK=t* ~eW Rtp". ~LM4"• oe
torteca" henSteS. ,
tvone • ~ , p
c. rropoue s.sousrs to maaae ot aoaceot, e+owtet sosrats, tt wst NA!fA _ Thi c i a a
manufacturina Dt+oDOSal wtLich L'aL[Y'AtP_4 rnrtinnc nf thP
OrdtlQtl f Zan Sa„01'hp?' sit~INP 1 i t-a i n
to +►at.artcs
a Vfas le e04 talloese tNtstu of sq Orepsw ssfteeure(e). wt tnaWtat sss4amu! tRess to ew
prloeLa4t •seeetos bttidto4 weaetai(e1 aeoto+.~=
An e1 era tor (leg) desxqned to lift csavel into hins wi11
extend 95 feet. Sane bins will externd to 75 feet. Remining
buildincjs and bins will be urtder 65 feet in heAML
b. A%.g v.wie ap ow unwit.u ..c►"c, -owJ4 b. 4u.r. .f ...~~.n Nnnp- I%P I mject
i.s within an estahlished industrial area with taller bxXil,din9s
and bins. ,
~ ProoosoA wawere to C"nee ot coaeeol senhatia tweat&. tf oqt Modern roi19tLllctio_rf
materialS will be used to maintain an 8ttractive but fUnCt3ronal
apearance.
, -
U. i.tca: 461D cwa
'n+ac tsa oe ttal+c ae sLa rsti tsw seaVOMl f~t ~Aas etm a V! %MLt u11"S Oettie•
Loadinc arqps aa~l e trios ~,ri 11 hgo- 1ieht~ frn- evenina_r
late night operatfons.
b. CaA►s ts$RC oe SLM [eM cw ltsastw PHIJUat s11 4, .at+e7 tasu* .t tssetar rw •tsMt '
No thP Ps°iect will be buffered hy (see attaqhW
e. IJ1+.e .sm.nos off-.la .ora.e of i3sns ve sj.n .n at«s fes PeMwa
IIthrar iMyia+-*-4a 1 t' n c i n tha ykC.inity hSVe lighted parkirlg
ancl wark areas ,
d. hopo... ....a..e eo er.dee o: ~srat ups a.d m.a t...as.. u.■wl
G1qhtiRQ f]g== wi 11 di rgr-*ed clhtatrArd tn r+erh rro
gLare ort adjoing propeerties
,
' sra:u= ZOWZROWXDMAL omDU=
. (vAC 197-u-9601 seaetoo u to.;=iJ
~ t. • QWU01lMiAL IIJMlRS (toatlnarq
STaiweloe ►oe
t:. AocUA.-tob u•• Qotr
4. VfMt doolguated sod loloeUal raeresttoml owoscmltte• an ta clr wmataee .falalee
Smkano ('ryinT~ aintainc a nark a ~i11i`san RoBd r~[~d
the Snokane River avnx-oximatelv ~ mile south west af the
pmi ect
' s. lonld d+e peopa.e vnj.nc di.olsa• my .:tsaLas raac.stLomt aNoi u w. bcraelse.
NO
a hvvosd auwn• to cbnaim et aost[sL lapaaeo os esetdttoa. teslama~ etiasrWoal e/Neewi-
cles to be Oto•wd b/ aM oaoj.sc o• sppIteaoc. t! aaya
Nnnp
i3. flLiMLC ANO AR.'QMI. fR~~A:'~11
a. A[r clwro as? Piaaio• o* otasaeso Ustr e• ot oe+epM/ :oe esCiead. aacs, es Lraai pftmrrr
cLna nIlicaee tes.s ce !e os er s.sc ce ce. •ttet t! .o, pa*aW ao.ett0e.
tvo thp site is vacant
0. Ga•eslls a..eKee ow la+ftuee. or e.ldsee• o[ etaeoeta 4aWwiqte@i. satsatt[ta ve aultaeal
tWoltlOCst %bAm W!f 0• Of Aett CO tl11 siN.
~1f1 O
C. teopws4 aitesutisim te, eobao st eount tqsata. tt sqs Tf arti facts SM
d,isgQvered durinc excavat3At1 or oanst=uction, the Sprakane
C`nunty Historic Preservati+on Office will (see attadyed )
-~►crs~or.ns:ac~
a. t"eclh ooelte setrc. MA 4tS0Aaye Nevta= tsn stte a/ asaKOe pe~aros" scaaas to eA~
e8L@9lC4 sQmt wscl. SIIQM'Oe •tCf OVY, Lt any•
__mlrgwo a~4_a ; nta arr~ nmmsed to Marietta AVEnue
fton f zv_cks and ane for cars usinq the office.
! is stee eursaaeiy Mswd !1 pnbifa eeustsT wss mms t• e!r a9/tssasts tiwage to taw
neateat teaostc tc"t
Senkane Trans it Svstem mai.titains ServLCe (see sttached )
e- am .aw r.uw ".e« r..ia a. «lpt".+ n.joa br,.: r.r ..4 sa. Ompes .u...ss.: ~
The conrpleted ject wfli designated paurking
spaces. Areas be or trucic parusng,
inadingr and unloading W-OV.
a. vttl rae revr+"l epotn .aw s.me r.ws or ne•ea oe tqtewsssa u osseu~ e~ er sseotg
nos LeoltNaai dtsvswM1 U gsaoiall7 4@nt'l1r (SdLaats wltwt wA►la or pelMpl.
[vo the iDzbiect will avicess Mat3.etta Ave. An iridustrial
street develAped by Spokane Icidustrfal Psr9c an$ daf=ted
tO %K*ane countv f
titll saw mlm amen tsr ea¢st N aw f=Odisu .lasatsf st1 aeK, ntl. er dr sesoqsesaefe~!
i~ ~o. tp~taLL~ M~ettM.
Yes the mroiect will use a sidfng adjoin+q the Spokane
International Railway. '
~
. "oRars sanionore►t. ataaura
JWltC 197-11.960f 4ieetLoa 11.10.=1)
S. 72R:AOtlO'JIL Q.-"MM (tootlwee) tvslaaeloa tot '
ns•ets c•• oatr
t pov aaor whlcaUt tel0o pet dey "~U be tseasseed W the 40141149416 O9014199! tt lmara.
t~CSt~ WIN0 pYt weew OCiU. ~ .
_cQnmleteci oroiect wil.l cenerate :ff: rrnc3nately 300
empl4y°e and custaner trips per day 20 to 6b ttuccf
trips per day. (see attached)
i IPropoa.e a.awa• co, eO4aa• oe aoaeesl eCsorPorcaefoa W}.aa8. Li sa?t
A uorti.cn of the AropOSa1 inVOW'-s the relmatfcn of
the d=y mix olant fran the Fort wrignt raci.tity on
G¢vm,rnment Way. To the extent possible, trips will be
dssnached to avoid peak tour trattic.
u taeL:c :avteas
a. vewld tIr areleat "olt is ss tuerased o.sa tor anltte semaio (tos onstiee tire ►i+ataeeles.
reLLee OcetantLos. MeLtb oa[+, snbooL. otlrt)! tt se. paetaLL? dWae=lea.
'i'he ccm] eted pmi_*t will create inr.remental dsmarLds for
mlice autd fire nmtQCtian sezvfr:eso
b tzooo«s ssasueo• ce r"neo oe eoateel "gea Lwo•ac• 00 ooelta «s•teo•o to sayt
Such incsomental denands for services wi.ll be Parti.a=Y
offset by increased tax revenues from the new and
relocated facilitv.
~~~i.~~~.'F7 -s ~ 1
a ~.LsNe~ • y •t the stts• ~l~eitl eaeus~S Watn trloa
hette ~t~v ssaitar~ w~wt3 as/a1a rf►aa, oCw . ~
38seet0e :M tistitttee suc 4" pnMw" los etw oee7oat. ctr r+ttitq ye0ft"y eft .n.ln nW
ea. ;480e.l eetieeoaslee eact•tebo so tM .lcs er to tm twfLsa Katstcf selnb iatM M
4Ktsd.
Electricity & Natural Gas WWP; Water-SOOkane .
tndustrial Park; telephoae- U.S. West; refuse-
Val ley Garbage, Sewer-Spokane County IItilities Department.
c s:M-.=
aaw vud.e.tqe.s. woftr wNt eer NMles oc p.:" ta.c aw .bs+r asosotis a" as" cometsllp, m1 co :m wa of sY taarL.ag.. t slso
a~daieisde tnat, ailitoa10 :Mft 0e s" WiliNnl demaNs"ttou oe Kiltet Mot e[ [%1l tlsnUssn os " OsK. 00 LV_q= may vleednv anf
e.c.cs►w.~tee ot aoe.aCISttaa.aaS ss.c tc agas tuw ts e.laaae. -1, ~ ee►• ee.etua.
o.u: 4- Cemtra-1 Pre-mix Concrete Company
crt.... reass or :~q.,
Ide,
E 5111 8=oadway Avenue
tu~c
Spokane, WA 99216
*.r.o. 40.0uaos cam: J. . CConen, David Evans & AssociateAn, April 30, 1994
Pft" 327-8697
Me s-u► oss Wtt 1%
liiglt ~oaets) eMuriet essl~t~~s: • v~
sss" oa eet tt ft.sao o! etW arrte+oanacal abaetlise ad aewg PSessMa 1"0111fitle46 the AaK:
A. CoWLaM• OAs 06tr ter 08 atosgW slMlteast aAwrse tstS¢t* sd erca • Ytovmlmcba at ~yoLSeaeae.
rOWwr.. sa.c ,"..w .iouriamt .d•.e.. .anna..e4 s.vea• eo cna e.e euo a.eftat plw•••i ..g ftecomea. . stapced tG:.e-
awtsoa aI awtpitiesaes Kes coadietoar.
t. CeaaLww• twe :aete aer trortiL aigoi:terss Nweu *s+reeeuaoseaL tsaMs ml [ra~ds a 4494esiostuo ot olwtlteaand.
rQ.aa ra - m.oe
io
ATTAC TO ENVIIZOMENTAL CHECK LIST
CEN'1'RAL PRE-MIX
ErNHtONMENTAL ELEMBNTS:
Earth:
e. (Cant.) Existing materials on site will be graded reworked to provide
foundations for buildings, parking and storage areas, ' basins
conforming to "208" storm water requirements, and landscaped areas. The
grading and drainage plan are stfll being prepar+ed and reviewed and quant3ties
of cut and f11 are not known at this time.
~ Air. a. (Cant.) During aonstruction sonne dust may be produced by equipment
operation The applicant is currently submitting detailed infornnation to
S.C.A.P.C.A. for review together with air pollutian control dev3ces.
c. (Cont.) Traveled aurfaoes within the praject will be paved per S.C.A1'.C.A
requirements. Applicant is preparing a"Natioe of Construction" for point
sources within the man g operat~on for ldln,s, storage bins, conveyors,
elevators, exhaust systems and other dust generators. Bag houses and ather
technologies will be used to teduoe dust emiasion. Waiver may be sought
from S.C.A.P.C.A. for the blodc storage areas located east of the building
complex
Eneigy and Nabwal Resources:
a. (Cont.) Electricity will be used for lighting and mechanical operation,
Natural gas will be udl3zed for space heating and as a heat source for the
operation of the various ldlns used in the manufactaring operation.
g, Land and Shoreline use:
a(Cont.) The site is vacant. Surrouading used include a tie atanufacturing
plant, a trucdng firm, a railroad, and aV=d iL
rav.e /p
~
Ught and Glam
b. (Cont.) No, the project will be buffered by a landscape strip along Marietta
Avenue.
Historic and Culhrral Preaervation:
,
c. tCont.) If aitifacts are discovered during excavation or construction, the
Spokane ~ County I3istoric 'Preservation office will be notified per Spokane
County Code.
Transpoitadon:
b. (Cont.) Spokane Transit Authority maintains service in Sullivan Road,
approximately 1/4 mile west of the proposal.
f, (Cont.) The completed project will generate approximately 300 employee
and customer tnps per day and 20 to 60 truck tnps per, day. Many of the
outbaund trips for delivery will occur at nori-peak periods.
~
i
r~
. spoKANE ExvUtorMErrrAL oRnnvaivcE RECEIVED
DETERMINATION OF NONSIGNIFtCANCE
ADnExuuM AUG 3 1 0%
EXISTIIVG ENVIItONMENTAL DOCUMENT
SPOKSNE COUNTY EAlG(RIM
(WAC 197-11-600;WAC 197-11-625) Sechon 11.10.150
Descnptton of curnent proposal: To Construct a 17,530 s.f. buildia,g for t6e menufacturmg of Caacrete blocks and storage.
Proponent: Ceatirel Pre-Mix
Locabon of proposal: 16310 E. Manena Ave
Tide of document beiwg modified: DNS - for Bindmg Sife Plens No. BSP-17-87 dated 11-30-87; Envtronmeatal C6ecklist for
BSP-17-87 dated 11-30-87; Findings of fect. Conclusion and Decmon for BSP-17-87 dated S 5-88.
Ageacy that prepared document bewg modifted: Spokane County Plaaning Dept.
~z
ADDENDUM ANALYSTS: See Attached
If the document being adopted 6as baen cballenged (WAC 197-11-630). please descnbe: N/A
T6e documeat is avaitable to be read at (ptaceltune):
Spokaue County, Divislon of Bwldunge 1026 W. Broaidway. (a m. to p.m.)
The lead agency for thts proposgl has determined tbat tt does aot have a probable significant adverse unpact an the e,nvironmsat.
AA eovrronmental impact stateffieat (EIS) is not required under RCW 43.21 C.030(2)(c). This decision was made after review of
oompleted envu+onniental checklist aad other tnformahoa on file witb the lead agency. This wformation is avolable to the public
on request.
There is no comment period for this DNS.
We hav8 idenhfied and adopted this documeot as being appropriate for this proposal after uxlependeot revicew. The document
meets our envirnmnantal review needa for the curnent proposal and wi11 accompany the proposal to decisian maker.
Name of agency adopting document Division of Buildings
Respoosible official: Ianes L Manson. Direetoc
c% 'Ihomas L. Davis, Cude Compliance Cuor+dinator
1026 West Broadway Avenue
Spokane Washingto 99260 ) -3675
Date:~• ao - Si r+e
The addeadum was mmled to ageacies aad dqxartments listed below:
WA State Dept of Eoology WA State D.S.H.S. WA State D.O.T. (Spokane)
Spokane County Eogineers Spolcane County Utiliqes Spoksae County Health Deist.
Spokaae County Fue Distnct # Watar Distnct S.C.A.P.C.A.
~ i
~
r
~
ADDENDUM ANALYSIS
~i Infornmhon submUted nwdhfymg the onginal envu+onmeatsl documeats iacluda•
The curnent proposal is coasidered to be a phesed review pursuant to WAC 197-11-060. Addiaonal proporls for ehe
developmeat,of the site raay reqwre a Thr+eshold Deternunahon. An Envtroamental Checklist has beea subnuued describing
future developments.
The curnent ptoposal bas; baen reviewed by the county departments at a PW-ApplicaUon Confereaoe held on 3/23/94.
Minutes are aveilable at the Divisioo of Bwidwgs.
'I7ie Spokane Countq Aic Pollutioa CQntrol Authonty as mwewed the proposal aad finds that no permits ace mqwted.
Notice of Coasdvchon applicahons are m tha process of lieing,ceviewed for future developments for the ute.
Streets. Utiliues, and Drainage improvements have baen, made to t6e project nte m, aocordance vinth the conditions of
approval fot the Bmdwg Site Plans No. BSP-17-87; and BSP 21-88.
The cumeat proposal does not alter nor chaoge the orginal aaalyses petforned m the review and cmulaaon of the
emshng environmeatal documeats refereuced above.
~
s '
NOTICE OF TRANSMITTAL
ADDCtC:SS PROJECT #
ae' /4 3/6 ;E'~' ^
BUSiNESS NAMC PARCLL. iVO./LEGAL
z"e'-Iz~-x UESCR I PTION:
PROPOSED USE:
Q~'.~",i~ ~ S~S1 a~ / • ~3~. ~
CONTACT. PHONE
.~-3y~ G a~~
,
REASON FOR TRANSMITTAL
PREAPP4ICATION CANFERENICE PRECONSTRUCT(ON CONFERENCE OTHER
DATE TIME:
DOCUMENTS CIRCULATED
DISTRiBUTED TO: ~
kcca OESCRtPTION BUtLDINGS PLANNING ENOINEERS HEALTN SCAPCA FiRE D1ST # OTHER
'6
Site Plan (new) (rewsed)
Cnhcat Materiais List
iParking Plan Signage Plan
Lighting Plan , . }1~ r 1 ~ ' ~ •.r S ~r._ o-,Y 4~ , ~ VK~~ , .
Drainage Plan
Drainage Calculations
~~Q•/ 4 YC'~" 'fi' .n ~id'rf.A~S~^fb^ Sd'p.A~t.S~ t T~ 'r
Y Y ~Q,~ ♦ ~-3~,~ Y",` 1 Y♦ I ~NF ~Y/ SN 1► II
AgI ~nl '~t tQ raV FPe.S $C`t,~~J,•~,~,y, ~t { 1`+^`` { y~ r R~ -Yn r,~ '"~~y-' f ~
.AM~ t ~7k ~ 'J.S,.-Q~{{'fr}? Y 1 k'+06 . Y~i ~ i~~'•~ `i ~L N 1 r~4 ~
Icngation Plan ~ 4
r
Landscape Plan ,/r
f a~~~,•~ t}~<, ~ ~ .~,e~a
ProRUSSOCy i.ett~rr .
I.aadssape Cost Estimate
h~*Z"~rr~ 4+'•"p ~.~(f '}~Aficwf ~ { 1.5a.. Y4~}~ C~'i`~ ~ '+"~»7o'~iiY'.'D%ffi ? ..~if} ti~ ♦
J A
~ ~ j~1 ♦ b/ M ~ I ~
Tcaffic Cu+culation Plan
,
~
~ -~'jOTiti+-0C ~ +~,~6 ~ril}"Jj Y ~ t-- '6 4 ~~yp}~• ~{-,f
Construction Drawings
I 3 ,.~n ~iF7' ~ n~4k + 1 . t JX+f~~ • ~ ` ,
\Av
FlQOr Plan ~ ti~ ~Ev'Li •'i~;rm`•,Kt~t SaP~`~r-0` ` }~3~r`'~?' g,~ ~q..~~ri- .,Yr
4
I
I I
?he abo►v Items hnue bren ~
i ecct uet!•
~
Date of Transmtttal• Review Coordinator.
AM 16 1994 s
Circulttetl hy
• SPOMAANE C~UilTY EgtRFFR
Spoko►rt• Cautrtl, p(t'i%rufr t f Qurldtng% * 1026 Wc,-%f liioadivai- Avenuc, ~ Spukcrije, WA 99260 ~(509)456-J675
PROJECT NUMBER= 94006304~ APPLICATION DAf 07/07/94 PAGE= 01
THIS IS NOT A P£RMIT
PENALTIES WILL BE ASSESSED FOR CONMENCING WORK WITHOUT A PERMIT
r~~~~~~~~~~~~~~~~~~~~~---------------------------r----------------r~----r---
SITE STREET= 16310 E MARIETTA AVE PARCEL#= 45~1 h~,32
ADDRESS= SPOKANE WA 99206
PERMIT USE= CPM BLOCK PLANT
v
pLAT#= 999999 pLAT NAME= RANGE
BLOCK= LOT= ZONE= I-3 DIST#= H
AREA-- 00000000 F/A= F WIDTH= DEPTH= R/W= 60
# OF BLDGS= 1 # DWELLINGS= WATER DIST = SPOKANE IND PARK
OWNER= CENTRAL PRE MIX COMPANY PHONEa 509 534 6221
STREET= POB 3366
ADDRESS= SPOKANE WA 99220
CONTACT NAME= JIM MC ARTHUR PHONE NUMBER= 509 448 9016
SUILDING SETBACKS: FRONT= 100 LEFT= 160 RIGHT= 160 REAR= 340
gEVIEA INFORMATION
DEPARTMENT REVIEW REQUIREMENT
BUILDING REVIEW COORDINATOR - J LARSON e
coMHErrrs : ~
BIIILDING PLAN REVIEW REQUIRED
~
COMMENTS:
BUILDING ENERGY PLAN REVIEW REQUIRED
COMMENT S :
SEPA REVIE ENVIRONMENTAL REVIEW REQQIRED
COMMENTS: ,
ENGINEER APPROACH/EZOOD PLAIN/DRAINAGE
COMMENT r ~
. s~ %-Y4~ ± S
e
C v ~ ~~e ,
ENGINEER SITE DRAINAGE TO BE REVIEWED
COMMENTS :
HEALTHDIST NEW OR ADDITIONAL WASTE WATER ~Q ~G~~•
~
~
1
.
S P C~ K A N E C O U N T Y
QFFICE OF THE COUNIY ENCINHER • A DNmQN OF TFE PUBLiC WORKS DBPARTMFM'
Ronald C. Hornlann, P E, County Enguteer Dmw M Scott, P.E, Directar
Date: 7 3klut q y
SUBIECT: C EH ntr4I Pi2c Msr
Gentlemen: c,,,,3 oL50,
A review of the road, draunage, or site plan for the above-referenced bwlding permit has
been accomplished. Areas of concern to us are mdicated in red on the attached plan set and
calculations marked "ORIGINAL". Please make the correcrions and resubmit them to the
Bnilding Department in order that the review process may proceed. When the vlans are
resubmrtted, mark all chanees on the revised pruit m color and include the mark-uo.
Please note that the plan set and calculations marked "ORIGINAL" are official pubhc
documents, and must be returned vvitb the revlsed plans and calculations. Review of the
revised plans and calculations wi111 not proceed untll the "ORIGINAL" set is returned 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.
Spok e County Engmeer
.
~ ~4~
Robe Turner, E.LT.
Plans Review Engineer
RECEIVFr)
JUN 9 4 %94
$POKAME W4ivj
1026 W Broadway Ave • Spokane, WA 99260-0170 •(509) 456-3600 FAX (509) 3 43
~
REVIEW CONMENTS
SPOKANE COUNTY ENGINEER
DEVELOPMENT ENGINEERING SERVICES
PR4JECT B94039 REVIEBob Turner
PROJLCT NAME: Central Pre Mix DATE: 9 May 94
ADDRESS: 16310 E. Marietta REVIEW 1
corNxTs
All traveled surfaces are required to be paved unless a paving
waiver has been granted.
Meet all conditions of Binding Site Plan before Building Permit
approval.
Approach Permits are required on all new approaches as well as all
approaches that will be altered. Contact Sylvia Lightfoot at the
County Engineer's Department. Approach permits for county roads
will not be issued until a site plan is approved.
The County requires a Spokane County Type 4 drywell lid for
drywells in 208 swales. Specify on the drawings this type of lid.
A landscape plan is required to ensure there is no conflict with
swale area.
Engineers Stamp must be signed and dated.
DRAINAGE REPORT :
Pronide contours or sufficient spot elevations to check site
grades. One-percent is the minimum requirement without special
construction requirements by a licensed engineer.
1208' Calculations for the site are required for runoff of
asphaltic surfaces (pavement, roofs, etc.) within the Aquifer
Sensitive Area. Show the quantity of asphaltic area, volume
required and provided, swale area required and provided. Check
calcs on basin 3 and 4. In your drainaqe report, list the
description of the areas for your bowstring calcs for basin 9.
Suggest to change the retention pond in basin 4 to a detention
pond. This would discontinue the overflow on the road.
1
Tt?atc A-A 9 -
To T~ r~P r ~rn►~a _ _ i' ' ,f''e
+cl' • Subjett - - -
ltem Coplcs Aate Drk*cEen
- ~
~
Rema& e e rf C-P r
~
~ -C~e 44e9 v' i'P
a uym mVmW Retum mqumcd
❑ For ~au infmmtian Q Ear }vur rmew ❑ . _ = ~
Fmm ~ u ~~~;.-,•~M~Y'
, _
~vm ASSOCtArEs, Ir~C. A PRUF~.SS~O , SHit1iIGES CONSULTING EIRM '~994
OPFICES`IN OREGON, WASHpVCT'ON; CA1.[FORNIA AND ARi7ANA
WFSPrI 10 ~1TAl.DO ~ F n
SPOKANE, WASH[NGTON 99201
~
(509) 3174697 FA)( (509) 327 7345
Ce al Premmix Concrete Company
Dry Mix Faaffity and
Concrete Block Production Plant
16310 E. Man"etta
Drainage Report and Site Plan
DE,A Project #CPMX0008
May 27, 1994
of w~tsyq'b ~~cr
.
p~ A 2s290
~ ~atSTtiQ'ti ~y :
EXP~~t~== ~~.~5~
. ~
Prepared for.
Central Pre-Mix Concrete Company
P.O. Box 3366
Spokane, Washington 99220 OFFICIAL PUBLIC DOCUMENT
'
SPOKANE GOUNTY ENGINEEA'S OFFIEE
ORI
1
PRaECT #
SUBMITTAL 4 ~
RETURN TO COUNTY ENGINEER
I'repared by:
DAVm EvAvs AND-AssociATEs, INcf ~west 110 c~talao
' Spolcane, Washington 99201 MAf ~ 094
J ~
1
~a Y11 l rv '4'K~~1~
lrr:,
~
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TABLE OF CONTENTS
~I'ETVT PAGE
_ Summary 1
Pre-Development Basins.............................. 2-10
~J`~~l1UU
Post=Development Basins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Basin P4STDEV 1 . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . 12-16
~
Basin PaSTDEV 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-22
Basin POSTDEV 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-31
Basin P4S'I'DEV 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-40
Basin POSTDEV 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-50
~
,
O~~y ~l~eli~l~~~ ~ l► ~11
1 ~ f ~ 1 ► , ~ ~ ~ , , ~ , , f- tl 1 . ' l , 1
Ael
d11~ - ~~1 I l it
~ I ~ ~ I ► I ~ l 1 ~ ~ ~ ~ ~ ~ f I i - ~ ~ ' ~l ~ ~ I
114
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I i y I ` ~ ~ ~ ! I _ ~ ! P ► ~ _ ~ '
'o, Locb, !~q~
i - ~ ~ i~ ~ e~ ~ f •1 r p ~ _ t . ~ ~ r d i ~ i , ~ ~ r~ ~l t -
I FI i I ~ ( A
, , 1 ' ° ` ~ ~ ~ ~ ~~~"C . I •A ~ ~1f CJy ~r •3 I;' ~ ~a
~
k -
„ - ~ ~ ~ ~ ~ ~ 0 ~ ~ ~ i I I N ~
d '
~
~ ~
x 1
1
ect
I
t1 e= DAVID ES~ANS`e1~W A~SSOCI~IES. I~C
~ i
. r ~ . , r ~ o ; , s 1 ~ ~ ~ ~ ~ ~ 4~ > } , 1
ry ~ ' ~ 'fr~/~~ / f ~ O C~~~ ~ ~ I ~r ~
• ~ ry ~ ` ~ ~ ~
` a ~ ~ ► ~ ~ ~1 ~ ~ y p ~ i11 a ' ~ 1 ~
4r
• ~3 1 A ~ ~ ~ ~0
, , ~ ' d~~ • ~ ) 1~,~~ '
~ , N
1
~ ~ w ~ c. ~ ~ ~ ~ ` ~ ~ ~ ~ tr
LV
• ~ ' . 1't ~ ~ ~ ~ ~ , r~; ~e , U•TI ~ ' ~ ` u.
j#di
~ ~ ~ ~1 •f µ ~ i 1" ~ ~ o~ ~ , ~ b~ ~ 1 '~w~'~
~ ~ ~~j~ ' ~ ~ ~ I ~ ' t ~ ~ v ~ - ~y ~ 'y ~
r d 1 ~ ~ ?R i
It
t t%~ ~f,~~ t~t " ~ 1, •
! . ~ ~ 1 . ~
~ !
i i ~ ;q ~ ~ ~j t q ~j ~ . 1 ~l ~ ~ t ~ 6 i
ir °S+
dk~~ ~
r
a ~
~ ~ b ~ , • I' ~ ~j~ i
I 1`
~ 1 ~ t . 4 ~ ~ i ~t r~ 1~ I, r~ 1 ~ ~ • ^ ~
I~ / ~ O ` ` + ~ i i~` • ' v ~M ;..~i~~r
g 1
n1 ~
-4
i •30 O
1
r D
d
~ . , ~ d ~ , 70 2
. }
N r +
Q ~ I' ` `r } . F ~ Z
rn
~ r o r r m
. "
~
~
o a „
e ~
~+f + k n ro~4 ~1{ s~ ~yy/~
rn
CO
~ +f
~ { ~ ,`e ~ ~ ~`'f ~ ~ Z JI~.~ 71~r o 1 ~ ~li + \ r
~ ~11, ~ b af s
. .
Garrison Series
T'he GsLrrmn series is made up of somewhat escesmrelr
drnined. gmrells or stony soi1= tliat; formed nnder grass
in glacial outRash nvaed m the upper part mth rolcanic
asli. Tliese soils are on nearlQ level to moderatelr steep
terrnc~es. The anaual,precipitation is iS to ~ inches, nnd
the frost-frea semn is abont 1 i0 dars.
Soils of the Grarrison series are nsed for avanets of
er a
Za-rrisongmvelly loam 0 to 3 cent slopes tGgA;.=~
~ts ~dvm~nant soi~in L e po e i'Oer easc of
the citg of Spokane. bicst slopes are between 2 and 5
percenL IUpre.sentntive profile:
0 W 15 incDes, black, ver9 friable ;ravelly losm. Qrs.nalar
auoetnte t sligbtlr acid.
' iriable rers grnve loa~m L
4 to =Inebes+. ma coa , , anbbl
The surface oolor. ticLen moist, rangres from %vrr dnrL
brown, to blac.k. The testuiv of the surfm laver kgrar-
eUT or verr Mrel]r loam or silt losun. The subsoil range:
in color from darlibrowv to t•elloRish brown. Clar and
lune hare accumulated on the'bort.tom of the pebbles in clie
lower subsoll. The depth Lo tlie gmFel subsirurum ran~~+^es
from 30 tn 53 inclzes. 3s mucli as 10 nercent uf some ui•etts
c;onsrscs of 8ong or Plioebe soils or of other Gai•MSOn soil$
Thi soil is some.chut escesicely drauied and bns mod-
eraLelr rapid per,neabflitz-. IL lio]ds a,Lout 5 inches of
wacer that plants can use. It n ea..ar to irorL Itoots
Pe_necra,r~te to the larer of sand, gravel. and cobblestones.
The fertilitr is mec7ium. Surface runoff is slotr. uad tlie
hazard of erosion is 1iRht.
_4bout 80 nerceaL oTthe acreage is cultirated; the re..ct ss
used for crazin,bt and as fanmsteads or suburbaa lou.
Biost of the acreage is irrgsted. Irri~t*ated areas an used
for orcliard frtuLc and berr,es i cabbage, corn, cantaloaP.
cucambers, celery. and squash =wbeat, oats. and barler:
alfulfa for har; undg~rass for se~ and pastua~e. Dr~•land
areas are usea for ~cheat, bnrley, and native bunch~
There k no d~cultT in the use o# machu~err, but the
Pravel is hard on tiflu:e implemeats. A11 crops eacept
:M!,lboron. a r~esnond to nitroge.n. Some crops respond to
and rhosphorus. ( Capabibtr uiut III.-3 :
Loanny rnage ste: not m awoodle,nd gToup)
Garrison gravelir loam, 5 to 30 percent slopes 1Gg81-
Tlus soil bas a surfACe larer 3 to 3 uicbes thinner than rhat
of Garrison =ravellc loam. 0t0 3 percent slope3. Runoff
is medinm. und the erosion b~ard is moderlce.
This soil is used in much the snme wav as Csarrison
errn't-elly Ioam. 0 io 5 pem.ent slopes. (CapabiLrr vwit
fC'e-3: Loaznc range site; not in a Roodland aroup )
Carrison oerp gravellv loam, 0 to 8 percent slopes
*mBI.-Th3s soil has a thinner. more grare11r surface la-rer
than Gflrrison grnreUc loam, 0 to 3 peroent sloper, nnd
holds les: thnn 5mches of wnter thnt plnnts can use. The
grnFel cnuses extreme Rear on tillnge machiuerc. .4,s
mnch ns j' percenL of some nms conssrs of otlier Garrison
sofls. ( Cnpabilitc uniz Ire-5; Shallow ran-ffe site; not
m n woodland :ronp)
Garrison veU stonr loam, 0 to 20 percent slopes
tGnB;.--Tlus soil holds less thaa 5 mches of Rater that
plaacs cnn use. And it is too ston-r to be cultiraEed. _4:
mnch as 13 peraeot of some areas consists of other Garrison
soils. a.nd as muc,h as : percent is anade up of ggranne
ontcrops. .
This soil i,s used fot,s*razinC. (Capabilitc nnit TD-2:
ShaUon- range site: not in airoodland vranp)
~
WGWoWo
BOWSTRING METHOD C TEhI YEAP ST(]RM DES I GNJ P'ROJECT : CPM XOOO8
DETEPJT I aN BAS I N DES ZGiV EtAS1 hJ: FRET3EU 1
DES T G3NE.r-' OLS(1hl
hlUMPE~' Q~' DF~YWELLS F'f~aF'OSED I?ATE: ~:5-~lay-'~~
4 Single 'tYp 3 I3ouble Ctype gr
Total Area (c81`. a I seF H1) 4 .u2,
Ta.me s,f %.Qnc. EcaIc. l (see H1) *Z-1» 18
Com osite "C"
p _a?c. a tsee HZ) 0.26
Time of Conca tmanl ~1.18
Ar ea (Acr es ) 4. 0 2'
C' Fa►_ t or 0.26
I mp er v ious Ar ea (sq . f t. ) 0
Vo1 ume Pr ~~v z ded 'C~B: 0 st r_~r m: 0
Out #1 ow tc f s`► u
Ar ea ~ G" Factor 1.04
# 1 #2 #3 #4 #5 #6 _
Txme Time Intensity Q dev. V:n Vc. Lt t Storaqe
In#:. Inc.
(m1n. ~ (ser, ) ~in./hr . ) (cfs) E._a. Ft. ~ (cu. rt. ~ ccU. ft.
1 *60) ~ A*i_ *#3 ) r Oiit f ~ ~#,A--*) (#5-#6)
~ • L 2
1 ~ 7~~ • ~C~ 1.39 1.45 i"'9Q~ 0 o ~jl.r" y~.}~
5 300 3. 12 3w ^ 1 1 .J42 9
~
1Cg Enf~ ~...~4 2.33 1 i~~ 1873
C s Soo • w 7.17
.t~...1.~
20 1.::oo 1.45 1 . 1! ; 1 24.425 -4.~5
.",.,5 15sso i. 2* t 1.:01- :~4 3: f~ 2431
-10
1 800 1. 04 1.08 2- 41 4 ~ ,=41 4
%J A..100 1 ty.
4ra y 4 0 0 C). 3.:. 0.35 ~ ~ ~ 5 (2 4-'415
J 7 ~J C.) ()«--'4 c77 - ~~j(:,
4 ~~~CJ
50 3C) 0 0 r~ . 68 L). 71 2427 2427
55 3 ;0 0 C! » 64 C° . ~S «484 0 2484
6ci 30Q0 0« :L~ E.is 623 .t5.5 i17 2558
"
65 y~' 900 0r6t) E~ fF, ` 2703 0 +.f.703
7t7 4 142 00 58 0.60 e-734 0 2794
75 4500 0.56 0.58 ~+87: 0 z87:
80 4800 0.53 0.55 :~824
C➢J ..7 t~~Q C.). Jt 0.54 ~0
54c_'s0 0. 50 0 , 5.-1 3033 0 3 0 323
'~v =~~o
0. 4? 0.51 3125 3 t
100 11000 0.48 o. 30 34 11
~.:Nti~~~.~+.~._..~.~.~.~.'~.~.~~-..~~.'r..~....~~.~..~.r~......~....w«. ~.~.`...ra~~►~......r.~~r
OF AI (VAGE PONL CALCUL AT T ONlS
Feq«ired ~~rassy swale p~.and sL~~r~,Qr~ v~•~.ycme
= Tn1peY,,ious Area : .5 in. / 12- ir « gt. = 0 cu. ffi .
pr-:La,-ded• ci ,Ju. ft.
.
DP", wE! .L N EQ-,cs I PEMENT'S ~EAF; T-i~tE1.3f i =1'OR:,,
Ma-1mum sVoraqe requi. _d b~ BOwS:ri.-L, 1_:.t.
~
~
TTME OF CONi=ENTRATION Cminutes~
T~ (over I and ) Tc (qut t er ) At pas
~ _ /y~Q'~Wrs 3.77 :'5
~.t = ~.1~ ~ L~
Z 1 = 0 oa 08 0.90
LI(A) _ 795 z~. _ 0 1-4004• 0.17 0.15
N (A) _ 0.4 a = c.0 0.00 0.00
S(A) = 0.0069 n = 0 0.00 6, 00
s _ u 0.00 0» Oc:)
To, C A 7 = 21. 18 d - 0 0.00 0. CIt a
Tut a Z A Comp " C`"
L1 t a) _ ~.0 Tc (vu) = 0.00 4 . 00.216
N(B) = 0 Tc tA+B? _ 12
S(B) = 0 Q=C*I*A= 1.45
T,= (tut. ) ~1. la Otest. 0.00::
T~ (B)= 0.0 Intensa.ty 1.39
A
WF' _ E PR
F: _ EEPP
V - EPP
Tc ttotal A - Tc (oveY 1 and ) + Tc tgutter; T-= (ou) - E RR
Tc roverlandy O(est) = ~F.- F
i_t - 0.15
L1 = LenQth of Qver land F1c:iw Holdzig = 0. 00
h! = friction tactcir uF uvzrIand fIaw (.4 f~~° average aY~~~z c_vcr)
S = aver aqe s1 ope or over 1 and f I ow
Tc ( gut t er) - Lenqth %'ft. 7 /Vel os_ z t y * ~ . * s~►: w + , t'~t
? = B~-.ttom wa.dth of gutE:er or ditch
Z1 - inverse xzf =:ross s1 ope one o* M~~tch
- inver~e =~f ~~~^Uss ~l~~p+~ two ~~i~ ~11t=h
,i..r -
d = depth r_-f flow in quitter 'estlmato-, che-_F estim~~~ iv-itFi riciw ►
AI'' ee1 = d*$"''d"2.Ia..*"(Z 1'{"i E )
Wetted per imeter = R*d+(i,/sin (atn (i/Z 1 ))+1 %sir► Latn i"i .f 2~: 'r,
Hydrau,i i: Rad tus _ R = HreaOWetted Pef:meter
Velocity = 1~4E6/n*F?'.6E7*s .S
Flcw = Ve1oclty*Area
n = 0.016 for asphat t
s= lnnqitudinal sln-pe Rlf qutter
l0
WGW0W4WV
BOWSTRI NG METHOD (TEN YEAF STORM DES I GN ) PF;OJECT A r-F'M~ 0008
DETEfVT I ON BAS I!V DES IGhl BAS I IV o F'REDEV~
DES I GNEP OLSOtV
NUMBER OF DRYWELLS FROPQSED DATE: 25--May-94
0 Sxnqle (typ 0 Dauble (type B)
Total Area (ca1 ) tsee H1 I 4.4l
Time of Conc. (calj_.) tsee H1 ) 18.54
crmposYte "C" tca1q=. ) (see H1) 0.25
Time of .'on►-_. (min) 18.54
Area fAcres r 4.41
C' Fac t or 0.25
Impervious Area (sq. ft. ) c;a
Volume F'rovided 208: 0 storm: 0
Out f 1 nw (4_ fs) 0
Ar ea ~ C" Fac t or 1.10
# 1 #3 #4 45 #6
Time Tzme Inbensity G dev. V In VOLtt Storaqe
Inc. Inc.
Cmin. ~ tses_. j (in. r'hr. ) tc fs°► (Ci.., ft. ) 11~'_u. ft.) icu» ft. )
c. # *0"_ta ) (A*C_'*#3) Ct]utf.*#: (#c--#6)
18.54 1112.31421 1.54 1. 7C") 2537 0.00 `5
5 30t~ 3.18 3. ~ 1409 0 1409
C) 6c."~0 ~40 24 2.47 1586 0 1'31 8G
15 900 1, i 7 I.'aW 2353
~3.~'.r^~
y:t~~ 12, 0 0 1.45 1. ~o s5142-3 0 ~.~.jy3
2 5 1500 1 e L 1 1.33 t5 t-16 V .2506
30 1St~C► t.04 1. i ~ .~~#•~8 0
..J..) 1 UU' O s ~ 1 1• ~_?j_~ 2~'vE 0
i'~Ct
4c 1 2. 4 t>0 0.62 0.90 : "J'-1 J
45 21700 0.74 t)• 8L ;_511
0 :..511
5 ti 3(~)Oo 0.68 0.75 _2533 0 ~IS ;3
55 ~,.3 `1tli) i ► , 0.71 A25 9 .°.J l7 .-C ;c
~t} ~6~>t7 x~. 6.L c~. f,7 "675 t3 ~'S7a
65 31300 0 . rC) 0.66 2$30 (7) ia ^l)
70 4.2-00 0.58 0.64 2928 iZ ~'3.?8
75 4500 0.56 0.62 3012 0 3~ ~ 1~1
30 4 ?0t~ 0. S^ 0.58 30 ::b 0 ?O.::6
35 5100 0.57 3141 0 3141
70 5400 0.50 r). SJ 3185 0 3135
'3~ 57~:1C~ 'J . -+9 54
I r~i ~ r 000 0.48 0.53 ►375 0 3375
DP'AI IVAGE PQND CaLCULAT I QlVS
Raquir ed qr assy swal e pond stor age vc-1 ume
= Tmpe~ ~Lr_%us Area .5 in, 0' 1Z zn. ~ t CLi. ft.
p~ I dt-Ad s 0 cu. f t.
7~'!WE'_'_ f=;EQU IRE;''EP,lT' - i? i °aEc-~~' DcS 1611 `~'r3r't'~
~tc1''=-tsjP 1`eqII.t'►=s~~i b~ ~--_.WSt,' ' (^g
~
T I ME OF i;QhlCEIVTRAT I Ohl t minutes t
Tc (overland) Tc (qutter ) Areas
~x
L': - 0.15 ~ _ ~
0 ~
/✓A N Y 4 d41 E~i d.r
Zl = 0 0.00 0.00
L1,A) = 665 Z~ = 0 0.00 0, Oc_)
N(A) _ 0.4 B = 0 0.00 0.00
S(A) = 0.00752 n - 0 0.00 0. 0r_,
s = 0 0.00 0»00
Tc rA) = 18.54 d = 0 0.00 c.. 00,
Total A Comp "C"
Li tB7 = c_l Tc (qu) = 0.00 s. 4I 0.25
N(S) _ 0 Tc( A+B) = 18.54
S(B) u Q=C#I*A= 1.70
Tc (tot. ) 1B.54 Q(est. ) = 0. 00
Tc ~B) = 0.0 Intensity 1.54
~ = V
WP = ERP
P = E~'P
V = ~RP
To: (te:,ta1. ) = Tc (over land) + Tc kqLctter) Tr-(qu) - EF'F
Tc (over 1and ) = rt *(L 1#N/S^G. 5) "0. E► ► Q (est EF'R
Ct = 0.15
L1 = Lenqth of Overland Flow HoYding
hl = g~iction fat:tnr of o\.2r land f' .ow t.4 for avc-r-age qrv~s---
S = averaqe =1 ope of -n-vzr1and f 1c,w
Tc ' Q ld t teY i = i.. e1'i gt h (f ta )/Veloc1 by t f t. .,1sE} c. J J F 0
B = Bottom width of gutter or ditcti
L1 - inverse -.-f cross sIope one c-f ditcri
7'~' = inverse 4f cr~~~~ slope tw~- ot ditch
d = depth ofi flow in gutte,< <est tm..ted pst imc-te w1th FI.:,,'`
F•+r ea m d*4--R-d' d.~ 1+~:' i
Wetted perimeter = Es~d+(1/_znt~yr~1.~~173+1%~Ynt~tr~~lfZ~y ~ ~
HydraLklaC Radic.cs = F' _ ArEa/Wetted F'er1meter
Vel ocity = 1 . 486lr*F .66:*s'.5
F1 ow = Ve1 oca.ty*Area
n = O. O16 for asphal t
s = longitudina]. SlOpe r;f gutter
~
8O4vS1'F' I tvG- ;hETHOD (F.'i FT", EAP S~',3r-'M rvF'Gi'3Ns ~ Pi"tJECi : t= r-'m;y )008
OC-i cNITIONI EtASIh1 DEC-,T=>J FAS?N-. F'FE Dr V '230
DES 113NEP 0I..J,JN!
NJ~~EP Gl= yR'r'WEL.LE F`ROFaSED Dt4TE: l~.}-1'R~~-'~•~r
--.7.mq1 a ~typ el
Totai P; e--i (see Hi 1 :0 73
T:•x~e o# Cz,rc. kca1c. ) (seQ H1) 2•1.83
CzItrposite "C" (cza" c. ) :s4?c- H1 ) ~~.5
!
Time of Conc. lminl 24.93
A,-ea (Acre-=) 3.73
C ' Fa c t o 0.25
Imp-S:~ .~x s r-i r e,. Csq. f~e
VolLtti'te F'%• ,v idec t:~
Cu.t f 1 _ow (c f = ) i5
1
r~rea ~ " F..~~ toY +'r ^
. .
f, 5 ~ o :97
~ .me Trme ?nL- en_i t,• C' dev. V I n V ►_o _tt 5~ _-,r aqe
tsti%. l; . +hr ts) .:L.1.
i .5e ~ t 3 C)
~ 20(11 4, -r l7:e jr,
t ' ) £ 3 . 2 » :4 1 c3.' :
/ tt~ %
' i r~} w~ ~ e. -"J 4 Y ~ ~ 2 J- - "
'd..~ { ~ ~ ~ ~ ~ n : •
.d .r .1 . ♦ ~:s ~ . ~ ~J ."a +w ~..1. ~ -
i 80Ir ~ • ~ G ~ t ~ ~ ~'L ! a1 a. ~
.~L~~ 'A ~
~ 1J -
-1 t.~f ~
,.~_I C)A 4 .j. • ~ ~l ~ d e •S1 A.tZOaL
51 ~E.1 V C) 7.L
R~• K. : ~ ~ a-...6 :
-1 sJ v ♦ ~
% ftjAmf~
r"1 " *1 -%r e.% ~
is r-2v~
~9 fi 0 0. 3: 0, 7;' 33
210 ~r'i _ 0 , ~
r ' ....W ..r J
4 i ~
1= ~.i' C_1 • ` r.) . ' ' ~ 0 ~ ` -1
~
~r J .i v %J ~ ~
7 1?
e= 3
e J e (•S it'
~
Z, y~(
~C CE~..
r
PfUr ~ 1'"11_ :L± T-On;G:
F Mq u it'?: g -'a s'=W--7-_t? p 1_1'i *j SGl;t =....4t't?
- j mi: er ~ 1 t..tu s f~ ea- ♦ • sJ : .-1 r a' 1 r ~ r ~ ~ • " ~ u• { .
•
~ r: ~ ~ ~~'4 ~ j~ ~ M~ '~.J 1 ~ ' ~ x ~ ...~i ° . ♦ •
~
~~•1.~~.~ _..+..~i;-~N~~''~~s " ~ ~ ~ ~1a j ~ r
_ s ~ •
7
I h`!E OF CDlVr~ ENi'RAT ? flN : m 1 nut est
Cc.ier l an J l Tc tgst} ef i
L 12 - 570 110400a~ 3. 73 C
~~.'~C~ . • )
71 = ~ 06
.
'~t6. {')1 • ~J 1,, ~
"ii R r-1 ti = ~ L - r~ „ :t~~ +:1 » _~c:
S(A) _ . Ci i Cl ~ C1, -t^ „ t~0
S ~ 0.0035 00
~ Q ! ~ I ~ • ~ • 23% ~r.v A o (~3 . ~.)I /
+a1 ~ Co mr C.~
- ~
T t.i (..t ) " I A li 1 v .73 • ~...1
14 (LI , rc (a:B, - L Z . 32
%i' A 1.57
t'J t e ~ .:4 • Q1 t OG \i ■ ~ ~ a 5-7
Ic 4 C) t.)o 1 m'+: i?t isity 1. vt~i
A ;2
0
41P - • f .
.
1 r= a i'Z d t: t ~'-t t 'C ? r ~ ' Q ~..1 ~ ~ L •
i r 1~' ..7 1 L. t~ r
T.: e2- d ; rl c! -rN rS .S ~ v S Lr `at
11 I d Fi .:,w ~g
o V P_ - --R r d r T o::t av :k C ? 2'' : s
~ f ~Y r~ .~_.t ~ ~ ~ •3 r~~ s •o'i t? r - a I~ _I t . ~ j 4.
t r LtTi i F- "eng7i I 1 ~ t z ~ e 1%:I c r % f a s
t v C ~ t 4 C ! 'r S !r ir (~1 _ l+ ~ ~ ~1
Z I 510+: : 1:+nC-? Y
1n4'eY -=c- zi ^e I:.rc
-st lm-~t Cz
I 't ♦ ~ 1 s.: ~ •
, ~ 4_ r r- r i e ~i eY r v; ~ ~
!M ~r ~ M ~ 1,►'~ ' ~ • 4 1 ? ~ -f a. - ~
~i ~
f 'i ~U
s l ' c~ t "'t -1 C'i ' ~ . r c.
= r's' 3 i1e't e:
~~~o~r,~Lvy - ~.-~:G.;"~~~ .►~~1°'~'~
w='v'e loci ~c,-'A re a
t
i = nj1 b_ :i . i 1 a» = _ o+'1' e r;L'G t4? f
~o
CD
~ - _ _ a~
17
i - - - • - ~ - - • - .o ~ ~ ~ ~ ~ _ - _ _
~
,
' _ ~ ~ _ ~ ~ _ ' _ _ _ ~ _ ~ ~ _ _ ~I ~
' ~ 4`~X ~ _ ♦7 ~ - .a ~ ~
, • , ~ ~ .
d ~ ~ ~ ~ I ~..~...m
n
44- `
~ _ _ _ • ° ~ ` _ ~ ' _ ~ - -_r_ _ _ ~ _
~
i . •
I~~~ I~ ~~~~~,I~II I l~~[~►1~r~~~e;~~~;
( ` ~ ~ B I i I 3 r
( I I ~ ~ ^ I i i ~ ~ I I ( 1 ! t ! I L 1 4 I I 1 1 ~ V
Y 7, ~ s
'Amp r I I~~~ l~
92
12 " r 1! I~ I I ~ 1!,, I ~ r kl~ ✓ ; , i I -
► a ~ ~rf ~ , i
I 1 ~ I I r~ ~ I ~ I I I~ 1 ~ I 6~, _ I i 1 r ~ ~ I , ~ ~ ► ~ ~ , ; ~ p , . ~ ~ ~ ~a 1 j ~ ~ ~ ~ , ~ I i
L
;~I
' 1 I C -]Op,1r-,/-/ L'
,
~ I I ~ ~ ► ~ i d ~ I : f I 9 V E I I i I i I I
~ j ~ ~ I ' ' 1 , V;
tvo I" I lJ ` ~ ► ~ 1 f ~ u 1 e~~-' ~ ~ _ ~ ; { ~ ~.z' " 1 ~ _ ~ ='''li ~ ~ ~ ► b ; 4 4 ~/j,,°~
~
' t..,le
~
~
~ ' ' - -
Z ' / ` tr
I ~ ~ ~ ~ ~ ~ ~D 1.~~ ~!~.i✓ ~p ~sr ' ( ~ t ~ ~J!~ ~~O` ' = ~ ~ -
l-
ti ' ' ' ~ ~ O_!►ZGL~~ 1 a S.~~ 9r AI !
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F30WSTPI(VG MCTHOD C TEhI YEAR STOPM DES IGM P F'POJECT : CPMX0008
DETEN'I' ; UN BAS I N DES IUIV bAS T fV: FOSTDEV2
DES I GNER OLSON
NUMBER OF ]7P,YWELLS P'f?01='OSEA DATE; :'4-May--94
1 Sinqle ttyp 0 DGUble (type B)
Total Area (Cal c.) (seP H1 ) 0.40
Time of Gonc. tcalc. ) (see Hi) 5.00
Lomposite "C" (!_alc. ) (see H1) 0.62
Time of Conc. (min) 5.00
Area (Acres) 0•4
C' Fact c.,r 0.62
T mp er v i ous Ar ez t sq . F t.> 9488
Vo1ume Frovided 208: 450 ~t. orma 900
Outflow tcfsa 0•3
Ar ea * C" Fact or 0.25
fT 1 TI.t #3 #4 9T5 #6 #7
Time Time Intensity Q dev. V in V-.-jut Storaqe
x!'1c. Inr.
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S ~0 0 C), 79 .13% 1E 90 2 2, 6
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1 z0t.) 1.45 0.36 4G~'l 1 360 1 C~7
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' 65 3900 0.S01 0.15 594 1170 -3?6
70 4200 0.58 0.14 d 1 8 121- 6 0 --6 42'
7; 4500 0.56 0.14 538 1350 -71~
80 4800 i 53 0.13 643 1 440 - -7
85 51 OCa G. 51 0.1 ~ 569 1530 --SAIS i
90 5400 0.50 1;2 631 I.,,: C)
93 5700 0. 49 0„ i : 7 V 4 17 1 t) - ~ 1) 0 E
1 at'+ 0`000 r>. 48 0. 1 ~ 7.Z% 5 1 E30c) - ~ 0 o ~
QF AI NIAGE POND CALCULAT I ONS
R?qui fed gr assy swal e pond st orage voI ! tme
= Tmper~ LC-Lis Area < .5 in. r' 12 in. ~`t. = 395 _I-t. f'. provided. .4c-C." k- 1-t, `t
f WELL i= ~~.UIRE~~IE~l i= - i~+ YEAF PES I+~iv 'TOf~~1
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TIME OF CONCENTRATIQN (minutes)
Tc (c+ver 1 and ) Tc (q ut t er ) Areas "f-"
Ct = 0.15 L2 = 110 s. ~e welk G . o,^-. 0, 43L")
+ 64.1 ~1ZS ~ Pa VoI^ J 0rL2 ~~■`70
L 1 k1'7 ) 70 Z2 = 42.64 ~ 4/I ~ O G OpC. 0.15 0.15
/
N(A) = 0.016 B= 0 0.00 0.00
S f A) = 0. 02'3 n = 0.016 0.00 0.00
S = 0e 0(.)J 9 0.00 0.00
T< (A) = 0.46 d = <h. 1065 j 0.00 0.00
Tot al A Comp "G"
U(B) 0 Tc (q u ) = 1.40 0.40 0. 6~
N(F) _ 0 Tc (A+P) = 0.46
S(B) = 0 Q=C*X*A- 0.7r-j
Tr_(tot.) 5.00 Q(est.) = 0.79
To_ (2) Tntensity 3. 1s
~ = t7 e ~OJv,.~`~
WP
P O a oJ ~..712
V _ I . .^.r I
Tc (tcttal ) = Tc (overland) + Tc (qutter) Ts_ (qu 1,4o
Tc (ovzrland) _ Ct#(L1*N/S``0.5)"0»S) G(est) = 0.79
'~.t = 0. 15
L1 = Lenqth of Overland Flow Noldxnu = ~9.21
h! _fricta.cin factor c-f 4<<erland fjow ~~~ir averztre gr~ss c,--ver#
S =aver aqe sl opE of over 1 and f 1cow
T-_ rgs.itter) = Lenqt-n (ft. )/VelCCrty kttw /se,:. i ~60
9 = Lot'tc►m width ofgutter or d x t :h
_ 1 - ZnYeY'Se of R i'oss Sl=&pE ot"1? ►~f d1tcrl
Z~: = znverse of cross slope two of dl}ch
d = depth ot flow Zn gLttter (est!.m--Ate,, check `stimate with F'.-nwl
Area = ~i+7.~ )
Wetted pL=rimeter = L#d+C ilsin (atiic I/Z1, )+lr :in (atn (1 ','-^))s
Nydraulz► R:adiias = R = Area/Wefited Ferimeter
'.'el ocity = 1 » 486/n*F . f67*s' . 5
F1 ow = Vel ocY ty*Area
n = 0.016 for asphalt
s = 1ongitL«ia.nal s],ope of qutter
/9
BOW5"f PI NG METF±OD P-?c- i Y YEAF' Si JRN iES[ LiN ) PRO..3 FC i- r^31XC,+A-a
DE' ~'v?' : U1v L{A5 4 iE1311IGN B A 1.i - "al : s= U'_3T ~1i=k;
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PQWSTRI NG METHOD (TEN YEAP, STOP.M DESIGEV ) FRtlJECT : CP X uc7OB
DETENT I ON BAS I N DES I rN BAS I N: F'OSTI3EV 3
D►E5 I GNER: OLSON
NUME+EP OF pPYWELLS P'ROPOSED DATE: ~4-May-94
1 Sinql e (typ 0 Double (type P)
Tiatal Area tcalc. I tgee H1I 1.47
TZme of CQnc. Ccalr_. a (see H1 ) 5.00
f_~_►mposite "C" (ca1c. ) (sze H1) 0.64
Time of Con`. (min ) 5.00
Area (Acres ) 1.47857
G' Fact or 0.64
F mp er v i c+us Ar ea (sq. f t, ) 31334.7
Volume Frov i ci ed 2.08: 1414.5 st or m a ~8~9
Out f 11--ow (c f s) 0.3
Ar ea ~ C" Fact or 0.95
#I #.r'_ #3 #4 #5 #6 #7
Time Timz Intensity Q dev. V an Vout Storaqe
Tnc, Inc,
(min. ) +s-ec„ ) iinN /hr. ) 6.fs) kcu. ft, ~ (cu. ft. ) (cu. ft. )
t # 2 *6c > > (A*C*#3) t Out f . *#Z) (#5-#6 )
5.00 %13100. Or: ~e 18 3.03 1216 9Q. !rl0 11 Zi~
~ 300 3.18 3 . 0 ~ 121E 90 1 1.: E
10 E00 2. 2-t 2.13 1496 1so 13116
15 900 1.77 1.68 1688 1413
20 s 1 ~ 4 -51 1.38 1796 360 1423 E
425 1500 1 .211 1 L.15 1844 45S ~ 1 ~a.34 4
3C~ i3C~o 1.04 .`39 1 S8~ ~44:1 1 2''~~
2100 r t. y 1 0.87 3907 6: e( ~ i..^.? i
%Js..
40 2400 0w LJS: t)11 78 1 J51 i ~.ar r 1.~-ornIn
45 700 t). 74 0. 70 19i3 a 1►_s 1163
50 3000 0.6s 0.65 2007 900 1107
JJ .~IJ`.0 ~~f 6). 7~'F ~JM G1 L~~7~ ~"J~~f ~ 1 i.~~i
f ~r ::6~.'~U 6 o 58 ~ 1 ~'3 1 c~fi~.~
65 3900 0.60 0.57 21285 1 170 1115
70 42Cf~.~ 0.58 Ow J3 2374 1264 1t14
75 4500 0.56 0.53 2452 1350 11 G~
3C~ 4~3C~i ~ 0.53 0.St? 4~#7 L 144~7 1 c~~~
8=
5100 0. 5~ 0.49 1 530 1044
'~c. 54r~~~ c~. 5U i~. 4B ~Sit3 1E~C7 ~~8
95 5? (.)o 0.49 0.47 270 5 i f 'a9.'.i
1 ClO 6 i :Qt:) t 1 .48 0.46 i 7e7 18of) 987
Dwa I NAfiE POND I=ALLULAT I DNS
Required qrassy swale pond st-Draqe volume
= Trnpervious Ar=;-:~ x .5 in.l 12 zn.Oft. = i3('16 cu. ft.
P r ov i ded : .~~=-t . ~ Lt . f t .
~38¢
DPYbJELL F.ECf .1 IF'EMENTS - i DE ~ TGN STOF'M
Ihayimum storage requir-ed oy gowstrzna ft.
p~ _p sd e. d. ~
o74
T I HE OF LON~ ENTF;AT I ON (m i nut es )
Tc (over J. and ) Tc (gut t er ) Areas "r"
M
C{i = 0.15 L 2 i ~~'l , ~ ~ S ~ o ^ I `C~~
Z1 - 3 0.13 0. 15 (ve& '
L 1 t R 7 = 45 ZA- = 50 0,53 U. 50 cal-ave
Nc.AJ = 0.016 g= 0 0.09 4. 15 laRdr
S(A) - 0.02956 n = 0.016 0.00 0.00
s = 0.005 0.00 0.00
Tc (A) = 0.35 d = 0.26 Q.oQ 0.00
To+al A Comp
U(B) U Ti_ (qu) = 1.98 1.47 0.64
N(B) = U Tc 0+Et ) = 0.35
S(B) = 4 0=~~# ~~A= 3.01
Tr_ (tot. ) 5.00 Qtest» a= 3.01
Tc (B)= 0.0 Tntensity 12
A= 1.79t4
WP = 13.8245
R = 0.12196
U = 1. 62
T~~ (tc~tal Tr- ce.-iverl~~nd ) + Ti: Egutter) Tc(QU) = 1. 38
Tc (nver].anci) _ Ct*tL1*N/S-`0.57,`0«6) QEestJ = 3,01
rt _ V.15
Li = Lenqth uf Over1ancJ Flow Hcoldina
hJ = friction factor af coverland f] ' ow (.4 for ave~c-Aqe gra5s LL.I•/M-r )
S= averaqe sl cipe ofi ovet' 1at1d f? !w
Ti: (gutter• i = Length < r t. )IVeI,,cr ty t rt. /sca-1r. 1/60
8 = Bottom width oF qot ter or dx tch
Z 1 i n ver se ofcrt~-ss s 1op eon e f ditch
Z~ = a.r,verse of cf oSS sZoRe tWo rif ditcfl
t
d= depth of f 1ow in qutter Cest imatE, check est imate with Flow,
Area = d*B-Fd 1L,'2-jtt Z1+2_122.
Wei:ted perimeter _ B*d+'1 /sin (atn (iJZi))+1! szn (atn (1/Z~
HycJr au1 Lt_ Rad iLis = P= Ar ea/Wet Fed Fer z meter
Uelc4city = 1 . 4E36ln#P`. 667*s°%. 5
F1 rw = Ve1 oci t y*Ar ea
n= 0.016 for asp hal i:
s = longitudinal slope of ctutter
WOWOWowo
a.~
~ 1'` 1 ' 4 ) $
~iOWSTRI N1' ~ METHOD P FIFTY YEAF; STQ~:M DES I~{~I PF:OJECT• . CF M X c~. t~
DETEhIT IL7MI BAS I N DES I R3N BAS I IV : F'OSTDEV 3
DES Z GNEFc : OLSON
NVNigEP OF DF?YWELLS 1'F:OPOSED UATE: A24-May-94
1 Sinqle Ctyp 0 UOuble (type B)
Tot..~l Area (cal c.) c see H ij 1.47
Time of t_onc. (calr. ) (see HI) 5.c.~A
Compnsite "C" (ca3c. ) tsee H1 a 0.64
Time of Conc. (min ) 5.00
Ar (Acr es ) 1.48
C' Factar 0.64
I mper v ious Ar ea 4 sq . f 1: . ti 313^4. 7
Volume Rrovided 1414.5
Out f 1►-tw Ccfs a 0.3
Ar ea * C" Fac tor 0.95
#1 #2 #3 #4 #5 #6 #7
Time Time Intensii-y C dev, W in VOut StoraQc
Inc. Inc.
(mzn.) (sec. ) (a.na /hr. ) <cfsl cC-u. Ft,.l (Cu. ft. ) <<_Lt. ft. 1
(#1*60) (Outf p*#'--) C#5-#6ti
3 k.')t~►. 0 0 4.38 4.36 3-y 5300.00 145~
5 3C~~~ 4.58 4.36 17~~ 9C) 1~61-1
1o 600 3.20 3.04 210237 180 1957
15 9 0~J 4 i 2.35 ~..2, 3 .'i~'JJ 22 ! 0 2085
: 1200 1.98 1.88 ~ 1523. T, 6 0 20': ;
25 1500 tr ~►.*7 1.59 ..P'7 ~ 450 +~`f 0 9 6
30 lL.Io•..• L ."CFJ I r aJ- X..rz"Ti 541J 21 0~
JL) 21 1 "0 1• 3c) 1 r .924 .i 7424 630 2094
`~0 '~0~J 1. 18 1 111.,. ~80 ~ w(.~ -089
45 2, 7 0 0 1.07 1.02 2% E 3 5 5 8I .20 4 3
J 0
3000 1. 00 0.95 l ~ J i 30ti.~ ~ 052
55 3304 0. ~ a 2973 990 1988
60 3600 C)m 87 0. 8v 3065 10a~'J 1985
65 ..J9V Q C1 .a i. 0.78 3123 1170 1 ;-5.3
70 4200 0.30 0.76 3275 1260
75 45C~0 0.77 0 . 73 33~ 1350 20^-
S~ 41300 0.75 0.71 '231 49 E 3 1440 2058
;3.. 5 100 G. 7.. E7 .6'~ ^a1~4 15 ~C~ :034
30 5.100 0.70 0.67 3E65 i62~'~
95 5700 0.63 Ch. 6te 3 B 9 1710 20':39
100 6000 0.~-7 C3. E4 3890 1800 ~090
DPAIIVRGE POND rALCULATIQNS
F'~-*quir~ed grassy swal e pond stor z-ge visl,tme
= Irnpervious Area r. .5 in. I 12 in. -ft. _ 1306 cu. f t.
,:ira= zy/ 3W a 1 e pot1 d y F-~1 -tsnt e or_ -.1 ~ ed ft.
J
v2 9L4
)P`fWELL PEQU I F,EMENT 3 - 50 YP S7ORM
,e F eq;.. .L.- = r~ 1',3. i : s y -2 1 t` Ft.
h? . I m u m st l.~ ~ ~tc
~ ,lr
4 ? 'r"'
ze,
WoWoWoWo
T I ME OF GONCENTRAT I Ohl (m i nut es )
Tc (over Iand ) Tc (gut ter ) Ar eas "r"
Ct = 0.15 L2 = 200 0. 7L 0.90 pa .eri
Z 1 - 3 0.13 L 1 C A > _ 45 Z~ _ 50 0.53 Co. 50 si .°C,
N(A) = o.01b B= 0 0.09 0.13 S(A ) _ 0.02956 n = 0.016 0.00 0.00
s - 0.005 0.00 0.00
Tc (A ) = 0.35 d = 0.298 0.00 0.00
Tot a1 A Comp "r,"
L1(Et) = u Tc (qu) = 1.81 1.47 0.64
N(B) = 0 Tc(A+B) = 0.35
g IB) = t? Q_C{ I *A= 4. 3~
T.: (tot. ) 5.00 a(esto ) _ 4.33
Tc tEc u.00 I n t ens ity 4.58
A - 2. 3v33-306
WF' = 15. 8453
. = 0.1483
V = 1.84
Tc (total ) = Tr- (overland) ♦ Tc (yutter ) Tr- (gu) = 1.82
Tc (►,+verland, = Ct*(Li*N/S`%0.5)r'0-6) n(e=t) _ 4,3%j
Ct = 0.15
L1 = Lpnqth of OVewlan►d F:,jw Holdinc = r. l3
M= fr icL- ion faJ_ tor of ~_verland f 1 ow t.4 for avPrage grass cover >
S = averaae slope ~f over-1 and flow
Tr- (gutter, , = Lenqth r, t t . )/'IP1 ocity (ft, /sec . ) /c0
B _ Bottom widLh of gLittef or ditch
Z1 = 1flVei'se of c1''o5s 5lop►_ GfIE? of dLt:f7
Z L = in ver _e u f cross s 1op e t wo of dir►, h
d= depth uf fl _iw xn gutter (est imatz, check AsL Lmate wa.th F}.,±w l
Ar ea = d*B+d 1~: 2*cZi+Z2)
Wetter perxmeter = Fs*d+r1/sin(atn(l/Z1))+1lslncazn(1/Z`)y)
Hyd ray 1 ic Radi us = P, _Ar ez /Wet t Ed Peri mzt er
Ve1 ocaty = 1. 4a6/n*F;-^. 667*s' .5
Flow = Velor_aty*Area
n = 0.016 for asphalt
s = lonqitLtdinal slope of qLttter
~ ~
WoWOWoW"
BOWSTF: T NU METHOD t TEN YEAR STORM DES i VhJ > PRO.TECT: i_ Fh1X1n008
DETEN7 r t]N BAS I N DES IGN bAS I IV : F'aAD 3
DES T GNEP OLSOfV
NUC1BER Of DRYWELLS FROPUSED LATE: ~5-May-94
0 Singl e(typ 0 Doubl e (type B)
Total Area (calcu) (sPe H1 l 0.14
T i me of Lon c. (ca lca) C see H 1> 5.00
Composite "C" (calc.) (see H1 ) 0. 7E
Txme of Gonc„ (min ) 5.00
Area (AcrAs) 0.14
G' Factor t'.. 76
I mp erv aous Ar ea (sq. f t. ) 473(.)
Vo 1ume Fr~~vxded 2C~B: 1384 st~arm; .-:'~~:3
Outflow tcfs) 0
Ar ea * C" F'act or 0.11
#t #4 #5 #6
Time Time Intensity 0 dev. V zn V out ot~ ~~age
Inc. Inc.
(inin.~ (sec.) (xn./hr.) (cfs) ccu. ft.a (Cu. ft») (cu. fF.)
1*ls0) l I'7*L *#3j) j Ou'L T n *'FFZ'
5• 00 3%y)w 00 3w 1O vJ'T 136 (7)w O= 1 ~ J ~
~ 300 ~ . i8 0.34 136 c, I ;G-
.i 0 6~.' 0 .s . i4 0.24 1 E7 0
15 90c) t . 7 ' r.).t '3 1 69 0
20 z .~01-j 1.45 0. Ls 201 r ► ~r~s }
'in- v 15~at) 1.21 c.►. 13 21 0 6
3c. .L3no 1. 04 0.11 2, 1 t 7-1..
35 210C.) r'_d . 31 c~ . 1 r, ~
i~ J
40 i4 0 ia 0. 8." 0.± t`" 218 0
45 5 22 70 i i 0.74 0. r'j` ,
"~c
50 w000 0.62 (7). ()7 0 ~.J
r
55 3300 0.64 1.1 • 07 .~..d.4.- G
SO 3600 0.61 0.06 c4 2 .11 ;41
r-, 5 3900 0.60 0. 06 ..Sib 0 ~56
70 4200 0.58 0.06 -a-66 a
75 4500 0.56 0.06 2-74 0
o0 4800 0.53 0.06 ..7 7 Q ,~','7
£'4 5 100 0. 5L 0. ciE. 2, 6 a
CA 5400 0. 30 0. 05 ~'~n 0.49 E ~ . c~E
L LcCt 6000 0. 48 0.05 312 1:
DPAX hf AGE FOND CAl.s_ ULAT I QIVS
Pequired qrassy s-wa].e pond storaQe V01 LUne
= 7mpPrvious 4rea x in. ' 12 In. "tt. 1':' _u. f+'.
provxded: 1384 cu. Fz,
L1F°~WE! L F;FQI! : PEl~lL~~lT u- I~ i ~'EAF DC 3T f~N ~~'~F'~.t
~'~c~~ ►i1l.tTi stt'-i"aq2 1''eql.R:~~~ by Sotsi-string = 2, 12
ldedr ..•~'T~ • d
~
TIME OF CONCENTPRTION (minutes)
Tc (averYand) Tc (gutter ) Areas "c"
►;4 = 0.15 L2 _ ~15 0.11 0,90
Z1 = 50 0.03 0.25
L 1 (A ) _ Z 2 _ 4.5 0.00 0.0o
ri (A) = 0.016 B= 0 0.00 0.00
S(A) _ 0.0~ n = 0.016 0.00 0.E:30
s - ~J. c~QB~ ~ 0.00 0.00
Tc tAa = 0.24 d = CO. 103' Cyrb .33 0.00 0.00
Tot al A Comp "C"
Li (B) - 0 Tc (gu) = 3.09 0.14 0.76
N c B) _ 0 Tc c A+8 7 = 0.24
S c e) ~ 0 Q=C*I*A= 0.34
Tr_ (tot. ) 5.00 Ca(est. ) _ 0.34
Tc (B)= 0.0 tntensity 3.18
A = 0. :'8'g095
WP _ 5, E2.58
R = 0n z,
ti' = 1.16
Ct~~tal J= T~= (f tver Iand ) + T~- (gutter~ ) T~~ rqu3
Tc (overI and) _Ct*(Li*N15"0. 5)~0.61 01,Pst 234
rt = 0.15
L1 = Lenqth of Overland Flow Hcildinq
hl = lr i ct ,,tin f z1 tor a l u*,•er I and f 1 ow 1.4 for cvL~ ...~ge qr as= c-=,r Z
S = aver aoe sl ope of ovPr 1and f Iow
'!'c gutter ) = Lenoth "ft. )/Ve1 oct ~ J U':. f se-: , 1/60
B = Pottom width of gufiter nr ditch
Z1 = ioverse of cross slo--ope one oF dzt-r-~
Z12 = inverse of -_i--sss sIope two of Jit•_h
d= depth of f1 ow in gutter fest a.mate. che-=k est xmatE with F1cqw,
;r~ za = d* R+cl` 1+~2'
WettAd p~rimeter = B*d+(i!sxntatntliZ1)a+i/s3ntatnt1/?2z ,ti
Hydraul ic Padi Us = P =Ar ea iWetted Peri met er
Vel ocYty = 1 . 486/n*F°'. 657*s .5
F1 cow = Vel oci ty*Area
n = 0.016 for aspha2 t
s = longitudzna1 s1ope of qutter
~ Cl
WoWOWoWU
B04lSTR hJi3 METHOD t TEN YEAR ST(7RM DESI utV a PF:QJECT c CPM XOOOB
DETENT 10N F AS I N QES IGN PAS I N: UALLEY v
DES I G1VEP OLSON
IVUMBEP, OF DRYWELLS PF;OF'OSED DATE: 25-May-94
0 Sinql e ttvp 4) Dnubl e< type B7
Total Area lcalc. j (see H1) 0.49
Time a f Conc.(ca1 c. ) <see Hi > 5.00
CompUSite "C" (ca1 c. ) (see H1 ) 0.90
Time of Conc. tmin7 5.00
Area (Acres) 0.49
C' Factor 0.90
Impervi~~ouS Area Csq. ft. t 2 1175
UoXume F'r ov i d ed 208: 1384 st ar m: 2943
Ou t f 1ow (cf s) 0
Ar ea * C " Fac tor 0.44
_
# 1 #2 #3 #4 #5 #6
Time Timc Intensxtf Q dev. Uin Vout Storage
Inr. Inc.
(min. ) (sec. ~ c xn. ~'hr. ) C,~ Fs1 ;c!~a ft, ~ Cc~.I. fi. fit. >
e#1*60a E A*C##3.a t Out f.*#2a c#S-#6)
5. 00 300. Uf) 3.18 1.40 564 0.00 564
5 30 C) ""41. 18 1.40 564 3 564
10 Goi..) :.4 E:). 913 693 0 s 1:+3
1 ~ 500 f. .77 0.78 ~'Q
20 1200 1.45 0.64 833 0 833
150c) 1 ~ 2 1 0.53 855 0 855
.'~t7 1 S(16 1.04 0.46 372 < ~ 272
'25 2100 0.131 0. 40 324 c' ~84
40 22 4 0 0 0. 321, ~.1. 3fs 905 b-1 '-3 0 c
45 2' 7 0 0 0.74 0.33 14 Cj 1j ~ 4
5~.+ .d0 Ut~ 6i~ t ~w r,~! 0 .
55 330C') 0.64 0.218 960 Lr 911_o
b0 ~~t~r~.) ri.3 r 6 Z 0 • 2 1~ ~ 936
' 65 3900 0.60 0 . :'S 1059 l~ 10 ..~y'--1
70 4200 0.58 0•26 1100 C.) 1 1CiO
75 4500 0o56 0.25 1137 G i l~7
0. 1~.46 4 11~~
~#8t~~~
85 5100 i 19..i 41 119..~'a
9c1 5400 ta w 50 L.) • ~ 1,,.. 13 t.~ L213
'35 570r) U r 49 0• ..~.~1 i.54 r ~ 1 +.54
t1„Io 6000 0.48 i2,..7a.2 . t1
f}RAI NAGE rOND CALCULAT I QNS
Requir ed qr assy swalE pond storaqe vcl umF
= Imper +/xous Are;.A ; .5 in. / 1~ in,,° Ft. = 886 cu. ~ t .
provzded: 1034 cu. tt.
DR`rWELL. "~«DUt REMENT`3 - 10 ' `E,"Ir DcSi GM 3l'OPM
As%imum ator ~~ge reauired Bowstr :ng
h'1 M ~ = ~
~
PY ~'J , 4 '1 b~~~ w-d
1 • Ai ~ I•
30
TIME OF C0NrENTRATION (minutes)
Tc Cover 1 and r Tc cqutter ) Areas "c"
Ct = 0.15 L2* = 140 0.49 0.9u
Z 1 - 50 0.00 0. UC)
L1 (A) - $o Z2 - 100 0.00 0.00
N(A) = 0.016 B= J 0.00 0.00
S(A) = 0.0131 n = 0.016 0.00 0.00
s - 0.0054 0.00 0.00
Tc (A) = 0.64 d = 0113 0.00 0. uC)
Tot ai A rumR "C"
L1 tB►_ 0 T., tgua = Z. 12 0. 49 0.130
N(B) = U Tc (A+H 0.64
s(a) = 0 Q=C*I*A= 1.40
Tt (t ot 5. ~IO a(est o ) = 1.40
To_ (B) _ 0.0 Intensxty 3.18
A = 1.2675
WF' = 19. 4
I ~
R = Q. 0Sr0
V
T._ Ctotaly= TC fcover 13nd7 + Tc (gutter) Tc (gu)
Tc (overland) _ Ct*(L l*N/S^0, 5)'0. 6j Q(est j= 1~40
'_t = c). 15
Lt = Lenqth of Overland Fiow Ho1dir,q = 4
iV = f r i cti on f act nt- r~of over a+-ic1 f 1 ,.z►w (.4 f ,_,r a+. erayz gr ~s covPr)
S=averaQe s1ope vfi Uverland flow
'f_ gutter~ = Length (ft. )/Ve1cscity Cft./sz+_a;PE0
B = Bottc►tn width of gut ter e+r dltch
Z1 = znver7iE' of c1''o55 ~lope cofiE of ditch
Z;- =:Lnver se of ,,ross slope tuo of ditch
o= depth uf flow in gutter (e`t imafie, check° estimate wi:h F1 -,w)
Area = d*B+d .1'2-*(Z1+Z.')
Wetted per3mei:er = B*d+(2;sinEatnlllZla)+l~sin(atn(Z/'~~11)r
Hydraul ic Radius = R = Area/Wettzd Peri:re4er
Velocity = 1.48E/n*R^.667*s'.5
F1 ow = Velocit/4Ar ea
n = 0.416 for asphalt
s = longitLtdinal sl.ope of gutter
'
( 1~ V;~ l~I I I I I{ 1 l I 1( I' I i I i° I ~ I I,~ I I
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Dace= it i♦99 ~ UJ~ DAVID EVAIIIS AND AMOCIATES. INC.
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L. DAVID EVANS AND ASSOCIATES INC.
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BOWSTR I RlG METHOD (F IFTY YEAR STOF:M DESIGN ) Fi?OJECT : CPM:<K:1008
DETENT I C3N EclIs I N DES IGN BAS I N: P'OSTDE'V 4
DES I GNER: OLSON
NUMBEP OF DRYWELLS ~ROF'OSED DATE: 25-May-94
0 Sinqle Ctyp 2 Double ctype B?
Toltal Are~ (ca? c. ) (see HI ) 7.19
Time of Gonc. (calc. ) csee H1) 21,79
Comp osz t e "Cll ( c alc,) (see N i, ) 0.53
Tlme of Conc. (man ~ 21.79
Rrea (RCYeS) 7.19
C' Far-tor 0.53
I mper v ious Area (sq , fit.) 73050
Vo1 ume Fr ryv ided 3342
Outflow (rfs) _
Area * C" Factc►r 35.81
# 1 4#3 #4 #5 #6 # 7
Time TYme In~~~sity 0 dev. V in Vout Stc-raqe
Incu Int.
(mino g t sectl 7 kin„ /hr. ) f cfs ~ ;cu. tt. ) (cua ffi, ) (`,u. fit» )
i *6a ) (q*r_ *#3 ) ( 0utF. ` 1 (#5-#6 ►
21 ~ 79 1.307. 55 1.87 7.12 1248~ L.615r 10 9QG?7
5 300 4.56 17.46 7C~ 1g 600 6419
10 60t i 3.20 12.20 13808 12100 8608
1~.~3 9~.~0 2.47 9. 4 113J5 1 9555
20 1 ~0 C_1 10'36 7. 55 12137 2400 9737
~s 1500 1. i 6.37 12379 a~:~0C~ `,.^-r
30 18Ci~~ 1.46 5.57 1~~#`~.~ ~E ~~n 989~
2100 1.30 4.96 1i6 1 Co 4i0 (3T 1
4fl 424 0 0 1.18 4.50 1 9 J 4SQ0 7 9?+=J
45 i.il0C,~ 1. ~ -)7 4.08 12 i72-16 54`-1N 74*12*6
50 3000 1.00 3.81 13 13 1 6000 71 ~ i
55 .1.,-:).105,) V N ~ 45 w V ~ 13 123 r~~~lo 65J+.
60 .A'.I60V O• S7 3. .3t- 1341`7 ~.G 00 Gz. 1 ~
65 31900 0.821 3.13 13580 7800 57QS.1
70 4200 0.80 3.05 14164 84170 5764
450(_) 0.77 Z. '34 14513 9 0 0 5513
3f~ 4300 0.75 86 14994 96r 5394
95 Jlt~c) C)e ?4 74 i52 18 10:.00 5018
.4n 5400 0.70 6, 15596 1 r?E300 4796
35 56 c_ic_r C' , S3 2 . 63 16161 11400 4752
[ ~o 6000 0.67 2. . 5 5 16461) 1 2,00o 44EO
DPAI1iArE ROND :ALCULAT I QhIS
Paquired Qrass; sw.--le pond stora~e volume
= Irrparv:Lous kr aza .5 xn. / 1.: 3.,. /rt 4 = 3044 _u. ~i:.
i3r,asa-y sEValta pcind vc-lume prov:.ded - 33421 c f t.
OPYWE12= cE'='UIFENEriITS - "P STOR~'
Ma`,1inl-itT1 St ci' ags? by L-sr_iWS~,' 1f1g - :-4 2r~-'
~
z o~ PG .r c%4
,
G
T IME OF CDNCENTRAT T ON c m i nut es )
Tc (over1 and ) Tc (qutter) Ar eas "c"
Ct = 0.15 L? = 1 55 0.88 0. '3;.)
Z 1 = 4.5 1.49 0.90
L ! ( A ) _ 440 Z 2 _ 50 1.66 0.55
N(A) _ 0.4 P= 0 0.24 0.15
S(A) = c>.c~l n = s:~.~~16 0.25
5 = 0.0089 0.00 0.00
Tc C Fl 13 .~9 d = 0.3188 0.00 0.00
Tota1 A Comp "G"
l.1 (Ft) = 1'"" C► TL tquJ = 1.00 7.19 0.53
N(B) _ 0.4 Tc(A+Et ) _ 20tl 79
S(H) _ 0.005 0=C*I*A= 7.12
Tc(tot. ) 21.73 Q (est . ) Tc (B) = 7.50 Intensity 1.87
A - 2.769511
W1= = 17. 41.::8
0.1591
.-=7
Lr J
Tc To_ duverl andl + T.- tqutter .r TcCgua = 1. 00
Tc coverlandti =Ct*(L.1*N1S^0.5) 0.61 QtPSt) _ 7.12
f + = 0.15
Li = Lenqth oF Overland Flow Nr,idinG = 5 55. - Z
,
M=fr zction f act.->r ofove rlan d f 1.--.w t .4 tor avprage g r a~s ec+vEr,
S _ averaQe s1 ope of o+rer1 and F 1 ow
Tc (gutter ) = Lgrrgti: (ftw i/YA1c-Pxty t Ft. /Gec» 1✓60
B= Bottom width of qLitter ar dl t.:h
Z1 = tntierse of crosr slope onr of ditch
i~ _ in.erse of crojs sI ope two !3T di tch
t
d = depth uf flow in gutEer ;zst zmata. y_heck est xmate wxth FIow,
Arza = d*B+d~~:/2*(Z1+Z2)
Wetter Ferime~er = B*d+(i/sYrt(atn(i/&'l))+l/sintatn(l~~*.-')► ,
Hydrayl i= Rad1us = F. = Area/Wet tPb F'er imeter
, Ve1 acity = 1 » 48S/n-+R" .6G7*s 5
Flow = Velacaty*Area
n = 0.016 foY a5phi alt
s = longitudina1 slope of QLttter
3S
WUWc3W()Wn
HOWSTP, I NG I"IETHOD (F I FTY YEAR STORM DES I UM1 F'ROJECT, rPMX OOO$
DETENT I ON BAS I IV DES IGN gAS Y N: Rt7AD 4
DESIGNEF: QLSON
NUMBEF• OF D~:`tWELLS F~ROPt~SED DATE: ~6-~lay-'~~
0 Szngl e ctyp 2 Aoubl e(type B)
Tota1 Area (r alcw ) tseP Hil 0.20-21
Time of Conc. (calc. ) (see H1) 5.00
Compusite "C" Ccaic. a (see H1 ) 0.79
Tame of Conc. tmin► 5.00
Ar ea t Acres ► 0.2119
1~1 Factot' 0.79
Z mp er vious Ar ea (sq. f t.) 10340
Val ume Fr ov z ded 3342
Out r 1ow (cf s) 2
Area * L" Factor 0.23
?T 1 ~ i '1'1' J 4T YT v #6 1'1' 7
Time T.tme Intensity C dev. Uin Vout 5toragcz-
Znc. tnc-
(m1np ~ (sec. ) (in. /hr „ ) (cfs) icu, ft. ) (cu. f ' ffi . ,
(Out f . ##.Z) '#5-#F ,
- 00 300. 00 4.53 1. C~a ~3~'1 ~►<~~7. r~c~
J 300 4. 58 1.05 4 ..f t
I ti o 60(J ..~.0 • ~ ~ 0.72 v 1 ..,i 1.62 tJIZ -6 7 '
15 3(~0 Z. 4; 0.56 566 1800 --1::34
1200 1.911 O. 4 52 '58'3 : 4 C) 0
1~~~:} 1. r: . 36 G i 1 ~~1t~() -~33'~
.~4) I8t~t~ 1. `'~6 ..►~'r ~avJ ,.~.i64a~.~ -~..:~~iF.~a
aJaJ i",. 10) 1.30 0.3t) 654 4 2' 0 0 -3546
40 2400) 1.13 0 •2- 7 0755 48OC► -41~5
45 2 XT l0 t. d.+" 0.24 685 J~~~~ ~ 5
50 ..~'r(_)00 1. t-Ps C) » 2 .~.3 ~r'>l0~ 1 -,,5 ,f~`~ t
JJ 3300 `.'r i ►0 r 2"$ 1 715 06OC.) -5085
~ 60 .`-.,6~0 IZ►. 2_ 0.20 r'..'~b 742 0 ct -646-4
65 3' 3! 0 0 U.$:= 0.113 75(.) 7$c,~t i -7050
70 4200 0.30 0.18 786 8400 -7614
75 4500 C1. -77 0.18 sio 9000- -S 1 9L►
8o 4800 ryr -75 t). 1 7 84£1 ,~t'.%. -87Sij
$2 5 5100 , " I • ?y 0.16 855 1 0,,..() 0 -9 23 4 4
90 54 00 0. 7(1 0.16 E380 10800
9 15 5760 0.69 0. IE '311 5 11 40(~ - 1;."~435
i ov 6000 0.67 0.15 934 12000 -1 1 6 E
DRAI h1AGE F'QND CaLCULAT t QNS
Pequirad grassy swAla poiid storaqe voIume
= XmperviOus Area .S In. / 1:~ sn. tft, _ 42"1 _~1» Ft.
aw~l~ Pcknd V'.-lume R~~~~dead = "24:. ft,
DRYWE~-L F ~OUT ~EMENITS
Mei,, .TIUff! :tol"' i-gr,e ~ a~l t 1 Y r3; IT.c,'eJSt: Y' i s1g 36
TTME OF C01VCENITR'ATION (m4nutes )
T._ C~~verlanda Tc (~1utt+~r ) Areas
Ct = 0.15 L2 = 430 0 . 2" 4 0.90
Z1 = 4.5 0.05 0.25
Li (A) _ :'0 Z2 _ 50 0.00 ~.i.n0
N(A) = 0.016 B= V 0.00 0.00
S(A) _ o, 02 n = 0.016 0. O« 0.00
5 _ t' 0.00 0.00
Tc tAa = 0.24 d = tJ. 152 0.00 0.00
Total A LomG "L"
U(B) = 0 Tr- (gu) = 4.31 0. ::'3 C►o 73
N(B) = 4 Tc (A+H) _ 0.24
S(B) = 0 Q-i=*I#A= 1.01
Tc itr.tN 1 5.00 Oczst. 1= 1e05
T,_ c ~ n. 00 Intensity 4. 58
A = 0.629564
WR = 8. 30
F. = 0, 0?5
Tc ctotaI ) = Tc (over1 and ) + Tc (gut t er ) Tc(qu 4.31
Tc- (ove~iar:d) = 1_t*(L1*N/S'0,5)^C).61 (2fest ) = 1.,Oc
f:,t = 0.15
L l = Length of t]vPr land F1 ow I-Io1 dliig = 1 1%50 . 3
N- firi~~~ ~-.:.n factor of ovzrland s i.,:;w c. 4 for avera4e qr .asz
S = aver aqe sI ope ot over1 and flow
Tc ~gul:terl = I_ength Ifta )/Veioctty Cft.l3~,..
g= Bol;tom width of gutter or dit•_h
Z2 - a.nvc-rse of r_T'o5s sl;-tpa one :=f ditch
Z:'_ _:Lnv-r-ae of cross ~li.qpa twc, of ditch
d= c!ept~i of f 1ow in gutter (est imate, ch.e,.a estirricafie wa.th F1ow 3
Ar ea = d-~S-1-J'2/2*(Z 1+Z2)
Werter pera.meter =
Hydr..~yl2 c Rad ius = ArPr»~/WP t t E'lj Per .i met er
' V elo(~ ~ ty = 1N "'f 86 / n*f w O 67 *sP h w ..~J
F1 ow = Ve 1 c+cit y*Area
n = 0. 01'c- fnr asFhal t
s = 1onctltudinoZ slope of gutter
37
WcaWOWnWO
FQWSTR I Nlv METHOD (F I FTY YEA~~ STOi?M DE5 I GN ) PF;OJECT: CFMX O()08
DETENT S Ohl BAS I N DES I GN BAS I iV : EAST F'OND
DESI GhJEfi ; OL.SON
NUMPEF4 AF DRYWELLS wRC]POSED DpTE, 2-6-MaY-94
0 Sing3 e Ctyp U DOubl e (type B)
Total Area ~_a1►_. ~ (see Hi ) 2.76
Time of Gonc, tcalc. a (see H1) 13.~g
Gomp os xte " C" (ca1r..) (see H1) 4.25
Time of Conc. (mtn) 13.
Ar ea (Acres ) *21 • 76
C° Factor 0.25
7 mper v i ous Ar ea (sq . ft.~ 0
Vo1 ume Pr ov ided 0
Out flow (c fs) 0
ar ea * C" Factor 0.69
#1 #2 #4 #5 #6 #7
7ime Tame Intensity L dev. V zn V ciut ~tr-tr-age
Inc. Inc.
tm1n. ) (sec. ) (xn, /hr. » (c fs) icu. ft. ~ CCu. f t, ~ tcu. ft. ~
(#1 *503 (~*C*#3 ) (Out t . *#2a (#5-#6)
13 ..='j-----79? .17__ ~ '2.71-1 ~1. S$ 0t~5 0.00 .~0 tt5
t. 30 0 4.58 3.16 2?70 t~ 1270
l o 600 3 . 420 2.21 1775 0 177%-
; 5 900 2.47 1.70 1396 C~ 199c,
r? ~.E71 t..
2t.1 12100 1. 98 1.:37 .<o 10
25 500 1.67 1. 155 A2041 c~ ^,')41
30 1 800 1.46 2 . f~ 1 ^086 0 A-~ a85~Li Z IL 1.30 c'i. 9c> i Z?
4k) 2- 400 1.13 0.81 21 0 J 0 2 . 37 5
45 2700 1 . 0~ 0.74 21,34 0 2 1 4~4
50 300b-) 1. 00 0.63 2 -1..{7
55 ..~?30f 1 (.Z » 9,: 0.63 22Ei p Ci' Z, L, 6 i
' SL~ ~:rf3C~Q r). 8-7 0.60 0 42324
E5 3901) 0. 1312 0.57 2360 0 23€0
?E~ 4A`-1 0 1) 0.80 0.55 '&"1468 0 2468
75 4500 0.77 0.53 22535 0 2535
80 4800 0.75 0.52 '7624 C> ;!6.:.4
85 5100 ~.r . 7Z 0.50 :~b~ ~ : 6G8
9C, 540c7 0.70 Cl . 48 2739 0 '2 7 2 9
95 5 7 C.t0 0.459 0.48 2843 0 -2843
itJ1o EC..)00 0.67 0.46 2899 28913
CRA 1 hIA+aE Pf]ND CAL,rULAT T OMS
P~qui-ed 4rassy swale pond storaQe v~~lume
= Impar-VlOLis Area f. ? n, ; 12 1n. /ft. = t~ cu. f~ .
Graf3:.; =wa1e p~~r~d ~ !me pe~~vided
DF WE'-L PEL-WT EME;WTO - 50 `r F STOPM
Ma• imurri s<<~~ agr~ feq-.~x,-.Pd by FsiDwstra.ng
3~
T I IWE OF CONG,ENTPAT I Ohi C m i nut es a
Tc (over 1and ) Tc ( g utt er ) Ar eas "C"
~
rt = 0.15 L2 = tJ ''a?6 0 . 25
L 1 = 0 0.00 0. oG
L], f A j = 440 Z i= c.0 0.00 0.00
N(A) = 0.4 B = 4 0.00 0.00
S(A) = Ca. C►i n - 4 0.00 0.00
s - 0 0.00 0.00
Tc ( A ) = 13. ~g d = n 0.00 0.00
Total A Comp "C"
L1 (B) _ 0 Tr_ (qu) _ 0.00 ::.76 0.215
N(B) = 0 Tc (A+Et ) = 13. 12119
'J b~~~ ~ 0 1.88
Tc c tt--4t 1 3. 29 g(est.) = 0.00
Tc (8) _ 0.00 Intensity 2. 7 :
p - 0
WF' = EPR
r,.~ = ERP
V = 1E- P P
Tc (tcita1. Tc (over1 and ) + Tc Cgutter- , Ts, (gu CRR
7c (overland) = Ct*(Lt'*N/S~'U.S) ~s~p b~► O(est EPP
Ct = 0.15
L1 = Length of Over 1and F1 ow Ho3, dlng
IV friction fa+_t-or ~f civprland Yl,--vw (.4 f~~r -.A•:er~.~gE grass
S=average sl c+pe oTover 1 and 3}. ow
Tc (gui;ter) = Length tft. tft.lsac-s/160
3 _ Botts_m width of qutter or ditch
21 = invc-,rsp t,f cross s1 ope one -jf J itch
Z? = anver~e of cross slope two rif dztch
d= depth -z-f f? s:,w in qutter (est linate, che►. k esfi xm,=te w1th F? ow)
Area = d*B+d-"L.r I Z*(Z1+Zi)
Wetter perimeter =
Hydr- ay 1io: r adi us =R = Ar ea/We t t zd Fer imet er
' 'lelocity = i 4136/n*P1'. G67-*s1. S
F 1ow = Ue Ioci t y*Ar ea
n = 0.016 for asphalt
s = xongitudxnal sl _►Re Of qLstter
3 9
Wo
Tr ianqular Channel Analysis & Design
Open Channel - Un i form f 1+?w
Wor k sheet Name : CENTRAL FF'EM I X
%ommpn t s UUTTER FLQW PAS I hJ 4 EAST
Solve For Depth
riven Tnput Qata:
Left Side S1 ope. . 50. 00: 1(Ha V)
Right Side Slope. 4. 50. 1 cH: Vi
Manning' s n...... 0.016
f ~Q,sf' Po•~c~
Channel Sl ope 0.0089 ft l ft
Discharge........ 2.93 c fs ~ /.OS f- BL~
CompLted F:esults:
Depth............ ~,,23 ft)
~rl~.~clty. w••• 0 M■ r S 1 Q~
~loW Ar eao u w r ■ n • • 1• 42' sf
Flnw Tnp K1idt1[..r 1.Zr45 1 4
Wet t ed Per isnet er . 1~ . 48 f t
Cr itical Depth. , . 0 .24 ft
Critical Stope ..4 0.0076 ftr ft
FrUude Number 1.07 (tlow is Superr- r it ic<al ~
Open t=h,-Annel Flow ModUle, Verszon 3.4'%S ci:) 1•e91
Haestad Methods, Iiic. ~ ~d Br ctokz1de Rd # Wate+~bur;. Ct 067(-)e
~ I I ~ 1 I f~~ I i
_L 4 ~
I I j i ~c ~
~ C 1 ~ 1 I~ 1 1! i G r t 1
E ~ :1 ~ ~ 1 I 1 ! ! ' ! I ! ! t t 1 ! a 1 ' t ! ~ 1 !
~ ! ( ~ • , ~ i i ~t ,r .1 ! I ~ ` ~ ~ ~ ' ~ ~
i~~ ! d ' ~ i I ! ! ~
~ 1 ~ 4 1 ~ ~ i ~
Li ijr~ ~ i s a ( ' , j ► „ 1 ~ ~ ~f ~ ~ I I I
~►~~II 1 I~ I~I l1 ~~la ~l!
41 ► ~ ~ ~ ~ ~ ~ " t ~ ~ ~ ~ ~ ~ ~ ~ a 0 ~ ~ ~ ~ ~
i o ~ I I k I r-J I~
I I ~ ! ! ~ ~ ~ ' I ~,~~I~~ ~ ~ ~ i i~~ • ' ~ ~ ~ ;
NNO
f!
I I~ I~ ~
'?7 ~ ~~~1 E 7 ► ! ~ .~Q ~
t, c-L
i ~ ~ ~ ~ , ~ ~ , I ~ ~ ~ ° ~ ~ ( a ~ ~ ~ ' ! ~ ~ ' ' ~ ► . -
f f' ;d7
I v I
if ,I,, i 1~5 ~ ~
1;~~--?'I-f~~ Il~tif~l fL ~
F ! ! I I y ~ ~
~~3t~p
~
i ~ I ~ ~ i2v
~
I ~ ~ ~ . ~ ' ; ~ ; I y ' ~ 1 ' ~ ~ I e M ~ ► \ ` ~ ~
~ ~ ~ ~ f! ~ ~ Sr • ~ I ~ ~ ~ ~ E ~ ~ ~ ~ _
► ~ " TD a
e,- I.er~ 3•9
-7
_ , ~ _ ~-r..• t.~~ ~ . _
~ ' I0
► ~
ecc= C! RM r,` > 4-1
~ ,i ~ ~ ~ c~,) ►
DAVID EVANS AND ASSOCiATES. ING
~ M ~---w i ~ ~r---~ ~ w ~
~
~ o
~ ~ . fL~ ~ A~k:.. ts:r tAo- - xs.,. y..v.K.zs ~ ~ y. ,,,,a. . n....
~ -a- - r -
- - - - - - r-~ ~ _ _ _ . ~ _ - • . ~ _ - _..r. _ ~ _ ~ _
_ r _ _ _ _ _ . - _ _ _ •
:
_
r ~ ~ _ ~ '+1`~ ~ • e~.i ~ _
~ ► ; I ~ ► ~ ~ - ~ ~ - ~ - - ~ - _ ~
~ ~ _ _z ' ~ . E ~ ~ _ ~,n►~. -0~~ .
WUWoWoWo
PCIWSTF' I Nt; h1ETHOD ( TEh! YEAF; ST0PM DES I r.,N ) PPOJECT r ~~PMX OGO8
DEf"ENT I ON BAS I hl DEST UI'J HAS I N: F'QSTDEV 5
DES IGlVEF QLSQN
NUMBEP OF DRYWELLS F'P;OPOSED DATE: 25-May-94
1 5inqle ttyp 0 Double (type B)
T►_it al Ar ea (ca 1._ (see H 1) 1.48
Txme of Cot'ic. (calc. ) (see H1 ) 5»00
Composite "C" tcalc. 1 (see M2 ) 0.71
Time of Conc. tmin) 5.00
Ar ea t Acr es ) 1•48
i_' Factr~r 0.71
I mp er v ious Ar ea c sq . f t 36752
Vo1 ume Fr av i ded 208: *A2' 4 6 6 st ar m o 5335
OLttflow (cfs) 0M~
Ar ~ C" Fac tor 1. 05
# 1 43 #4 #5 #6 # i
Time Time Intpnslty Q dev. V tn V out Stor age
Inc. Inc.
('1,i/'1) 'l5E?r_'• 7 ~11-00/h1'M/ ({rf.7) U.U. ftR) `LCLl• 1t■~ kCLtY 4tN ~
(#1#60) ~ A*1..*#3 3 (Out'f. ~#'2) (#5^#6<
~0i_ 300.00 3.18 3.34 1343 3,W). 001
qt7 t~ + ~
5 3~.~~~ v•l 3w~y .3r~' 1 .~.'I i'I' .i
10 600 ~ r .~4 ,.`~~`-J IE5.. 120 141...1 5 90(1 1 ,77 I» 8G 1863 -170 15 333
:0 1.'t~~~ 1e-~5 2.2?f~~ 36~:. 1~
. ►5 1500 1.21 1 . . 7 ."0..736 450 15 F31r
3t) 1800 i.t~4 1. r~89 ~t~78 ~~n I
^S ~ t0 0 C). 31 0.96 2t05 E%-:';O 1.475
40 24W ~r. 8.* 2 4. B6 2255 72- 0 1435
45 - Z 7o 0 0.74 0.78 '2: 178 5 LV i ;6 2
50 3000 o„ 6i3 U.71 i IE;. •~c:•c? 1 =1 ~
55 3300 t:'. 64 00 6-1 1390 1: 'a-.
6` l 2-6 0 V 0.61 0.64 7 22 t $ ~SO 1292
~
' t~5 3`3C~4 Q. f~t~r t=3. 63 ~~....i: 11:'0 13159
70 421 4C► 0. 58 0.61 ~6 c 1 1~60 13611.
75 4500 0.56 0. 5i 2707 1350 1057
t~t~ 48~~0 .5^ 0.56 ~a.~'3 1~~~ 1: 8
a .~.J 5100 0 w ..~.12 0.55 i~.8"7.c'. 1530 13 12
'3(~ ~}(.1t~ 0. 5{~ ; .::8 9 4.~ 16 20 1.~..""t ~
J 5 7 0 0.49 Clw 51 2'387 1710 1 ?
~
100 SA:,000 0.48 0. 50 ?~.~77 t ° 0 C) 1277
DRAINAUE POND CALClJLAT T ON5
PEquired gras-yy swale pond stur age vc~lume
- !.Tperva.ous Ara~ •5 Zna I 12 Zne /fts = 1531 cu, it.
provided: .:u. rt»
(3Pr'14Fl.,~ PEOUI PEc1ENTv - 1 ; ► "AF' DE~ I_Mf ; =Tq.Pfi4
M,a{,xmLrm stor-aae requir=a by Sr.wsVrina - 1~~~ I_1. f+.
Pi I:1 V o J et,.1 F
J: ,.v L.l.t• ~ :
~3
TIME OF ~ON~ENTRATION (minute
Tc f aver 1and 1 Tc ( qut t er ) Ar eas
CV - 0.15 L v'. - 245 R D D~ ow .l 1.I o• )o
Z i - ~E. 5 p.►v, N~ 54` ~3.90
L1 (A 40 Z: = 62.5 6rare !Cf. 15 Q. 50
N(A) = 0.016 H= r) L. a w d scP 0.~0-, 0.15
S(A) - 0. Cii n = 0.016 N-04 u•►a I 0.11 0.25
s - 0.005 o. 00 0.00
Tc C A a = 0.46 d = 0.22223 0.00 0.00
Tota 1 A 4cimp 11 r"
U(B) = 0 1"c Cgu, _ 2.69 1. 48'-- 0.71
N(B) = 0 Tc(A+Et ) _ 0.46
S(B) = 0 Q=C*I*A= 3.34
Tc(fiot 4) 5.00 Otest.) _ 3.34
Tc (S)= 0. G Intensity 3.18
WP = I9» 7`"07
F: = r-Ja iii 1
V = 1 r 5...
Tc (tota1 T►_ (over I"And ) + Tc tauttera T~~ ~qu>_ 6 9
Tc (overland) = Ct*tL1*Rl/S'0. 5f "0.G1 Q(est) _ 3.34
Ct = 0.15
Lz = Length of Over 1 and FI ow Ho1 ding
N = ti°iction fdctor ~~f overland flcow j a4 for- average 9rass =c+•~er)
S=aver aqe sl ope of over 1and f 1ow
Tc cgutfier- Lenqth t fit. a/Ve1oa~it-y rft. /szc.j160
P = Bottctm wxdth Of gutter c►r di tch
i 1 - 1nvf? rFe of iri~~ ~ s], coR P t i ne of d ar,i_ h
-in v er se of cl' os3siope t wo of diFch
d = dept.i~ ._of f I ow in qLtt1-er (est imate, i:hec{: est imate w-L-h FI c+wl
ar ea = d~B-A-cf * t Z? 2 + ~Z j
We:ter1 parirnetar = B*d+t1.,sin(atnk1/Zi)j+1/sinkatn(1/ZZ); y
Mydr atrt? ic Pad iuS _ P _ Area/Wetted r-'-=r jmeter
Vel o,_ z t y = 1. 466 %n*P . 667*s~ .5
F1 -tiw = Vel.::--. it v*Area
n = 0.016 for asphalt
s = longxtudinal s1 ope ofi QuLter
41
WoWoWoWo
BOWSTRI NG METHOD c F I FTY YEAR STDFM DES I uN a PPOJECT : CPMX 4OO8
DETENTION BASIN DESIGN gASIN: POSTDEv 5
DESI GNER: OL50N
NUMBEP OF" DRYWELLS PR(JF'QSED QATE: ~5-May-94
1 Single (typ 6 DocAble ctype P1
Trrt al Ar ea (ca 1c.) i see H I, 1.48
Time of i_onc. (calc. ) (see H1 ) 5.00
Composite "C" (ca1 c. ) (see H1 ) 0.71
Time of Conc, (min) 5.00
Ar ea (Acr es) 1•4$
C' Factnr C ►.71
I mp erv ious Ar ea < sq . f t. 1 36752
VU1 ume Pr ov idesi 246E
Outflow (cfs) 0•3
Ar ea # C" Fac t or 1.05
#1 #3 #4 #5 #C #7
Time Time Inten,ity Qdev. V in VOut Storage
Inc. Inc.
tmin. a (se`. ) (zn. yhr. ) (c fs) r0_Lt. fitd ~ c1- Lt. ft A g(C Lt. ft„ C# i*bC> > (A#i--'*#3 ) ~Outf.~lt-2f(#5--#5 )
5, 00 3cltj. 00 -1a 58 4.81 1932 ' -e 0 . cacl 1 84'
5 300 4.58 4.81 :~Js 130 194t
1/~ 600 3)w 36 ~tiJ51 ac) r 178
c
"~~'-l t ~3' 11
~`~rco a~.. fM 'a c'u r5~=+~ i~ i.
~ J v+J~ l
1200 1'.038 2.08 G706 76C_)
4.'5 1 ~0 ~'0 1.67 1.75 :808 450 4-u5c~
3t=~ 18U~ } 1.46 1. Sv 14 '?~7~
35 100 1. 3c, t.36 3004 63C. 3 7 t
4f.s ~:4QV 1.13 1 • ...~4 .~~>'~O ~w..(' .c~a./~S7
45 2700 1.07 1 • 1.24 ,J 14 i a Z u ...337
..5 icl 3000 1.00 t . 05 .~..~rJ 900 . .35G
55 4J3V0 0.92 v• 97 L 285 990 a..~ J5
, 6 k-, 236 0 0 0.87 0.91 3.'at30 1 OsO : :.:UO
65 3900 0 . 0.86 3444 1170 Z. Z' 74
70 4.0~0 0 0.80 0.84 3612 121 6 0 22 3 5 2
75 4500 0, 77 0.81 371 9 1350 :359
8o 4200 0.75 0.79 3858 1 44t~ '1418
85 5 1 Qu 0 • 72, 0w ~E 3931 1 Jr~.+0 2401
'~r: 54t3C/ C+. ~ ~:a ~'J .73 4 s==~# ` 16
95 570t,, f). G9 0 . 7: 42" 4 L 17 ttj 2, 4 9 1
1 Oc:) 6i it;zt > c~. 67 0.70 42S1 1800 2491 ~ ~ ~AGE POn►D CAL= t.ILATt ONS
Requi red ar assy swal e pond Storage vR:,l ume
= irnper>izous Area .a in. / 1Z inw,*ft. = t531 _Lc. fi;.
~SraS5Y SWa! r' P01-1d vQz[.lw►i►= ~,'~Y'-=w/ Ldo?d f t; .
QPYWFL-I F'EOU I PFt°IEP'!T3 - 50 STDPIh
i-ia .~+4'1 ~ i +_L . f t ,
' S3~< <w
T I ME OF CDNCLc-IVTRAT I OIV t m i nutes 7
Tc Cover1 and 3 Tc (outter ) Areas "c"
Ct = 0.15 L2 = 245 $3oo4 0.18 0,90
zi - ~E. 5 PayisN g 0.84 0. •~o
L1 (A) = J#G Z2 = 62. 5 b Yave 1 0, 15 0.50
N(A) - 0.016 b= U L-A n 1•0. 20 0 . ir5,
S(A) = 0.01 n - 0.016 r( aTNrO ~o, 1 t 0.25
S = 0.005 0.00 0.00
Tc CA9 = 0.46 d = o.255 0.00 0.00
Total A Comp ~~C"
U(B) 0 T: (qu) _ A-» 4b 1.48 0.71
N(B) = 0 TctA+B, = 0.46
S♦ B1 ~ lj OaC*.[ '7EP1= 4.81
Tc(t►r'►tr ) 5•~.,'0 OteSt. ) _ 4.91
Tc CEs i_ 0.00 Intensity 4.58
A = L.~912J613
WF = ,",2. ?0 18
F: _ ~S4 1+7J
V ~ .Y t ~i
Ts_ (total) = Tc (over 1 an(J) + Ti_ (qut; ter) Tc(qu) - 46
Tc (overland) _ ~~t*CL1#i~I~S'~~. ~y~~►a Q(est 1= 4.81
Gt = 0.15
L1 = Lenqth of Ovtr 1 and F13zow Ho1 ding
N = frictitDn fac+,or o_ c;verlanti flow (.4 for aVLI'e1ae grass
S= aver aqe sY ope of over 1and P 1ow
To= tquttet- ) = Leiiqth (fit„ )0Ve1 oc1ty C ft . /sec. 7 /60
R=Bc+ttom width of qutter or dx tch
Z I _ irl ver 5 e iDf cY' oss ,a, a c-(3 e ---1'1 E+ of dd ~:h
Z 2 = 7. n rr eY 5 Z o'C r 1' o5 s s:. opc- tW o of tJL tcf'1
d= depLi- -D: fl,-tw iro guttar (em-stonate, check estimate w1th s='.-:kw;
Area = J,B+df'2/d*o.Z1+Z2,)
Wetter peti irneter = E~*d+e 2os-cn (~atn(Ii`Z)) +ir'sin(A-l,nt?/Z.,-C-,)
Hydray1 ic FadiUs = P=ArPa/Wetted Per imeter
Val nc1ty = i. 486/n*R'`. C6?*s" . 5
F1 ow = Ve1 ~~-ci ~ ~*Ar za
n = 0.010'- f,ar asphalt
s = 1onqatudxnal s1ope oi qutter
WaWGWoWo
' ~ • -
. 8
B0►WSTP I N`j ~1ETHOD c TEN YEAF. STOPh'I DES I HN J FF.t]JECT. C'RMXft . af3
DF_TENT I Ohl BAS I N L7E5 I GN BAS I N: I NLET 5
DESTVNER OLSON
NIUMgEP OF DRYWELLS FPQFfOSED DATE: X-5-May-94
1 Sinqle (tyF a Double (type B)
Tota1 At*ea C►_alc. ) (see H1 ) C_).Cs8
Time of Cc►nc. tcalc, > tsee Hiy 5.00
ComRosite "G" (cal _ a) (see H1 ) 0.90
Time of Oor1r_ . (min, 5.00
Ar ea (Ac r es ) 0.0$
C9 Far t17r 0.90
I mp er vious Ar ea (sq .ft. ) 3500
VOlLcme P'rovided 208: 2466 stiorm: 5335
Outfilow (cfs) 0•3
Ar ea ~ C" Fact cr 0.07
#3 #4 #5 #6 #7
Time Time Intensity Qdev. V ln VOut Storaqe
In_. Int r
(mind ) Cseca 1 cln.fhr. ) icfsJ r1.I-L. ft. ~0tu. ft. ~ tC Lt. fit. ~
1 *60) (A*G*#3 ) (Ouff . ) t #5--#E y
5• 00 300.00 3.18 . ~ 3 , r" G' 3C~ • 00 (c)
'a.f 20r) .I r ~ v r ~ f rJ 9 t 1..' 's., i
10 600 ~.:'4 Or t 6 113 i1; C)
15 90k_) 1.77 0.13 1.118 ~ i a
1.~'. 0~~ 1.45 0.1o 13E► 3Ei ~
Z 5 1500 1.21 0.09 i4(1 450 -35 1 Cs
3V 1200 1.04 S.o• 07 14 Z. 5 4 Q -+r`DE
3.,~s 14:►(:) 0. 91 0.07 1 44 ~ : 0 ) -48C':
4C1 ...4 0 0 0» K" 0. 06 1 48 / 4-~~
45 2" 70 0 0.74 Cy » 05 149 }3 . ~_1 -66l
50 vC)t~j0 0d68 0.05 15` 9CY:1 -748
5 5 3300 . 64 0.05 157 '33(1 -8w~
60 3600 0. C-0 1 0.04 1 6? i o8u --9 "L .
' 6!f 3900 0.60 0.04 173 11 -70 -99r
70 4200 -0. 5@ 0.04 18o 1.'_60 -10g0
75 4500 C). 56 (.1„ 04 136 1350 -1164
8t) 4800 0.04 187 1440 --1 2 5~
85 5100 Cl. 52 o. (y4 195 1530 -I
li\~ 5400 0. 5C% 0.04 198 1620 14~L.:
r
~ .~.1 57~ 1~ ~ E~w 4~.d . L~~t' .~0 a.~J ~ I ~ ~ ~ ~~,.~v
ttit'., 6000 0. 48 0.03 211 1800 -1589
OPAI NAGE POND CALGULAT I ONS
F;eqU irrd gr assy swa2 e pond st or aq~ lume
= t,npprvzous Area -4 .5 sna J l~ .ne ft. = 146 cu. ft.
J:, ryo,ti 1d P_ d e 24f..l.; : Ll . f$.
ZF', WELL F-IECIU' =ZEhENTZ - ~ e7Af=. DES I iSN STQP~t
R~~,i,num storaqe r-=_quira-d by 3ow~-:trcr,q ffi.
4-7
T x ME OF CONCENTRAT I ON (m inut es )
Tc (over 1and ) Tc (gutter ) Areas "c"
t='t = 0.15 Ly = 90 0.08 0. 9o
Z 1 = 0.172 t=► . 00 0.00
L 1 (A ) _ 25 Z 2 _ 54 0. 00 0. Oc'I
N(A) _ 0.016 B= Q 0.00 0.00
S(A) _ 0.0.& n = 0.016 0.40 0.00
s = O 0.00 0.00
Ti_ (A ) = 0. ~8 d = O. 063 0.00 0.00
TotaI A Comp "C"
L1 (B) = 0 Tc (gu) = C). E5 G. 08 0.90
N(B) u Tc(A+B) = 0.28
S(B) 0 Ct-% kI*A= 0..:'~
Tt (tot 5.00 Q(est A ) = 0.213
T._ fBq = 0.0 intensity 3.13
WR - 3.2146
P = 0. (-131 0
V - 2. 30
To_ (to1;a►1 Tc (overl..~nd) + Tc fqutter) TP tgu) - 0,65
Tc (overland) = rt*(L1*N/S^0.5)10.6' (?tEst) _ 0.~3
Ct - 0.15
L1 = Lenqth of Over3 and Flow
N = frictzot1 ~actoi' of oYeFZal1t) tis:+W :.4 ft=1r esvb?{ac.~E' QYasS
S=averaqe s1 ope of over Z and f 1 c►w
Tc (gutter) = Lenqth (f+, )/Uel--x:;.:y Cft. /sec. S'F0
B= Bot t-im width G'C gutter or ditch
74
cro5 s s1 ,.:►p e one c-f ti i t!_ h
zn,/er-se cf ►_ro_s =_l:~pe two _+f dztch
d~ dc-zpth oF flow In qutter (estimate, check e=t Lmate with F.~~iw,
Area = d1'3+d^21-'2*(Z1~Z:
W-etted perimetar = Es*d+t1/san(atn(lM) )+1 o=- in~ UlZ2, > >
H}►cirEttclir- Padiu5 = P = Area/Wetted P'Qrimeter-
Ve1 ~ ocity = 1 . 4SGi n*F:'. 6G7*sf`. 5
' F1 ow = Ve 1 oc ity*Ar ea
n - 4.016 for asphdlt
s = lr=nqxtud2r1a1 slope ofi gutter
~
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6_41
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Circular Channel AnaXysas & Design
S41ved with Manning's Equation
Open Channel - Un X for m f 1 aw
W~~~ k-sheet Narne: CENTRAL PF:EMI X
romment : P'OND 5
Sol ve F--rr Actual Depth
Given Input Dzta:
D i amet er , . . . . . . . . . 1.00 f t
S1 ope . . . . . . . . . . . . . 0.0025 ft 1 ft
Manninq's n..,.... 0.012 Dis~:harge......... ~,7 fs ~1 3.3q ~ S b
f;omput ed Resitl t s:
Depth............. 0.772 fit
Veloc ity. . . . . . 41 fpS
Fl ow Ar ea. . o . . . . . . 0.61) st
Cr itical Depth.... r►. 55 ft
Cr tt ical S1ope.. « . 0.0055 ftlft
PAt'cent Ful • . ■ ■ . • 71 • 83 %
Ful l Capacity. . e.. 1.17-43 cfs
OMAX @. S4I3. . . . . . . . 08 cf s
Froude iUumber 4 . . . . 0.59 -flow zs Subcrit xr-al l
'
Qppn C-hannel F1 ow Module, Vzrsi~~n '.3.4.3 cc, 1'--~03t
Haes+ad Methcds, Inc, # 37 Hrookside r~~ * W&t-=rbcW; . rt 015706
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NOTICE OY TRANSMITTAL
ADDRESS: I ~ I~ ~ PROJECT a:
C M ~.C~ ~ G
BUSINESS NAME: PARCEL NO.ILEGAL
~ ex--}-re:~o Pre, • M,i x, DESCRIPTION:
PROPOSED USE: 15 ( 2` 1 ' P 1
~$1 o c k. -PCad AC--hCn q 1 3,~ ~ c.CONTAC'T: , PHONE:
7`v~n ~~r,p Iti~. 53 L4 --(6- 2-24
REASON FOR TRANSMITTAL
PREAPPLZCATION CONFFR6NCB X PRF,CONSTRUCT[ON CONFFRENCB O?HER:
DATE: TIlVIE: 10 " oc a. m . r ~
DOCUME:NTS CIItCULATED
DISfRiBUTED TO: ~
REW DESCRIPTION BUII.DiN(3S PLANNING ENOINEERS HEAI.TH SCAPCA ME DIST I j.. Ort'H@t:
1
Site Plan (new) (riiised~~ ~ ~ x- ~
Cntccal Matenals List
Parkiag Plan
I sY A M
-
ISignage Plan
~
I.ightiag Plau
r*{._..
Dratnage Plan SF, ~t
~ a a r w
i
2 v
Drainage Calcuiatioas
Agreament to Pay Fees
n x + iy S~ M♦
Imgation Plaa
~ s
I.andscape Plan
Proaussory Letter
~ ~ ' ~
T.Sf1dSC8pe COSi EstII[at8
Tcaffic Circulation Plan
IConstcuctton Drawings
iFioor Plan
I ~
~ a
I I ~ ~
?he crbove items have beere ~ recetved:
.
Date of Tcansnuttal:3 ' I(e Review Coordinator: --i0V1.l1 L-CtS,5~ C-
Circulated by:
Spokcriee Cou►rty Divisiote of Buildrngs * 1026 We-tt Brorulwccy Ave►iae * Spokcrne, WA 99260 ~(509)456-3675
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0 88-21 PHA3E II~ ANO 1HAT PORTION OF ~ ' N ~ N aN N0. 87-17 DESCRI8~0 AS FOt10WS:
• THENCE N,74'S9~50'E., ALON6 1H NORTH 14~
OF BEGiNNiNG; TEI~NCE S.15'QO'14"E.~ ~
~iE EAST UNE OF SAID LOT 14; THENCE - ~HE NORNTEAST CCRNER OF SAID lOT 14;
LOT 14. 1200 50 F~ET' TO ~}1E TRUE POINT ' A
~
g 10 11 , j
400 200 00 ~o 0 2 0 ~ - . ~ ~ 400
0 ~ ^ ~ ~ s M~
, n o r ~ = FEET ~ E 1 240 SCAL
~ . ~ - o 0 ~
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L1= 4 8 ~ OAY OF ~ ~ ~ 12 ,
~ PaRK = ~ 1 ~ . 441. W ~ O SET REBAR W YPC LS.13775 / ~ 0 ~
L = 6.98 6 OAD • ~ 0 1 ~ . ~ ~ ~ ~ OR AS NOTED RAILR , ~ r ,
1 JN 1 9 ~
.R G~- 10 ,
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o~ 13 AL . ~.5.~'. i ~ 9 ~ ~ ~
9 . . + N0. ~7.17 / i . 0 ~ ~ 1 0 ~ • ov
~ ' - • 6 ~ ~ ,
, 6 16 , tl 1 I 1 ' ~ 332-130-100
~ •►r ACCURA Y STATEMENT WAC A ~ 0 H ~ a 6 P . . ~ 5 c~. . . ,-r ~ ~ .
N , 0 t 12 . , 4 / • '2 N ~ 00 ~r~ 1 9 _ S• O• P R ORME~J U51NG A UETZ SET 4 . , 0 ~ Ar THIS SURVEY WAS E F ~ ~ 3 2 , 4
w - , o . / 4• Zfl~ ~ ~ O~ Z ! AND A 100 FOOT CHAIN. Z. 3 A?i0N A SS ~ ~Y 1'OTAL ST , ZE LEVEL. ~ ~ '1 , u HAIN.
i 0 ~ • ~ ~ ~ ,O ~ ti t~'* r E BASED ON THE NATIONAL ~ 3 0 G HORIZONTAL J_~.'~..E~ AR 36 4 2 ~NA r r A ~ S• ~ „ kL
0 0~ C ~ FELTS FIELD. ~i ~ ~ P DETIC SJ'~~.~r ~AUBRATION BASEUNE AT , , ~ , ~ ~a ~ ~ c_o ~ ~ ME h ~ r - ~ ~ 3 .0 - ~ ~ ~ ~ r ~ Q. A 1 ~ C WERE AS PER FIELD.
~ d~ ~ K p~ FlE'~ TRAV~ METHOD5 USEO 3 ~ . ~ ~ / ~ * R ~ t~ ' 14 ~ ► WAC 332-130-090 PART ~
0 o N . o ~ , ~ ~ 5 ~ . ~ 0• 1 . ~ . .1. 0 1 , .
. r 12 ~ G O~ S. . / M , . , C ~ q A ~ 0 .
~ . o~ ~ 0 - 5 1 Z 3~ 5 1 1 - SURVEYOR S CERTIFICATE 2 '0 , c~ 5. 5 _ _
v ~ , ~ ~ ~ ~r ~ .g ~ URV MADE BY M~
~ 5 ~ . THIS MAP CORRECTLY REPRESENTS A S EY ~ ~ Z ~ Z ~o • ~ bR UNDER MY DIRECTION IN CONFORMANCE WtTH THE
3 ~ ~ ~ . ~ e ~ • L- F AT THE ,r' O~ ~ ~ 20 EASEMENT RE . A} RE UIREMENTS OF THE SURVEY RECORDlNG ACT ~ r O ~ Q -
O . 1 , • ~ ~ C~ O ~ ~ P CORPORATION ~ O ~R • REQUEST OF PENTZER DENELOPMENT . g , . . Po . .
~ i ~ P•~ ~ ~ ~ ~ O O ~ 1. 0 p IN MARCH 1994 . ~ , RA► . W ~ . F , . 9 1 ~ , N 0 f
. . , ~ o q~ ~ - , X ~c~► 1 N, . R ~ ~
. ~ d SIGNED ANO SfALED IR 1 " ..1 ~ _ • a~ ~ ~ N. 7 ~ , ~
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~ IMPI~OV~D SITE 8]I AC~S ~
~ ' " " ~ RJTI~taE BTORAGE ' 284 AGREB , BUILDMGB 49.438 8f. Irp4 ACI~B . L
e~py! • PAYING 113,9'f0 8F 399 I1~8 , u n+~e~ m~ue e ; pqRKING pRpylpEp 39 9TALL8
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