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Bradley N 1016 Add Wash Tunnel UPS J ~ s - - • DAm ENGIl~TIEER'rS ~~'~V S~EE~ _ ON MVvRW LOMM nv MAL BLDG. PEA►=,, # -or -F7LE# R94097m Related File # ( ) Date to Revievv 6-20-94 T'~me 10:00 # PRE-APFLICATION DaYe to AA & DIt fiune Date Receivea , 6-2-94 P.roject Name A`DD wASH IVNNEL t7PS No: Lots No.Acres &cb n - Townslrip - Range SITE ADl3RESS BRADZ" N 1016/,N BROADWAY PARCEL # 13531-1402, APPlicant's Name CA1tY GRANT-PPS .i NG Pbone # 206~42:5-5643 . o Ad.dress v 6021 31S'LST NS-TACOMA WA 9_8422 Work # Date Conditi,ons mailed Contact person Phone # FL40D ZONE d NO W S SCHOOL Engineer / Survey°oes ! Architect's Narae P" Coatact Peion, Phoae # 456-2Z05 Date Submitted Descxiption Initials /_b1AGREEMENT T0 PAY TEES OR PRIORIT'SC FEfi COiViPLI'TEs D & COPY Tb ACOOUN'ING ' I /1qNAL PLAT .FEES CONW-LEIM & COPY TO AGOOtTNTING NOT'ICE TO PUBLIC #1 3 4 6 COMFLETED - OR NEEDS TD BE SIGNED DESIGN DEVIAT'ION SUBAffn" ~ /AI,TERATION TO PLAT -13LOCXS & LOTS HBARIIYG EiA'M APPROYED DMMFD-"APPfiALED BBC / PROJECI' _.1PPR0VEP __PENIED U1 I I Qe 5 u.b t- ~ ~ 2 ~ ~ ! T• ~~~a-~ / ~ ~ !1 'h~ ~ ~ I~N 1~la+~T~ P~~ s . ~ a%i.t 4,'e•t,r ~ - ( 'L"-,em ~ ,,t.•b, ~ ~ f6cw.z , A/~•... fr(] . ✓O., , ~ ?/Z 5 / .~i 30• ~ C Ari 4.&j It ~ y NeLpp AJJ t0 Sg ~ L/'ldPL , * , . 4weview;ior w ~ RI3PORT OF 6r10/94 PRB-APPLICATiON CONRgRBNCB 1016 N. Bradtey - United Parcel Servicc Wasb Tuonel ~ NMM I ADDRBS.4 I CI'lY ~ 3T/1TB I ZiP ~ YRONB 1 COlA'ACt' ~ OWNP.ft ~ Oao 8nada. UPS ~ NSS SeveathAve S. ISeattle ~ WA ~ 98108 ~(206) 621-6229 I ~ Stsvc Nepean. UPS 11016 N. Srsdley ~ Spoluae ~ WA ~ 99212 I 92L-2018 COMRACTOR jCaryOno1. PPS 16021 - 31st St. N B. ~ Taoome ~ WA ~ 98422 ~(206) 92S-5643 ( X STA'IE ENVIRONMBNTAL POLICY AGT (SEPA) 'IUe proposal was revieared by the Dwimon of Buildiags for compfiaoce with the State Eavironmeatal Policy Act A thres6old determination is not raquired based on WAC 197-11-800(1)(C). PROlTsCT OVBRVIBW Applfcaat propose.s a 3.000 sq tt. automated wash tuaael 'lbey will install a preasute mtua to the sewer line on Sprague and a gavity maia to lst Applicaat wauld like to beipn constnecuon oa 811194 SUMMARY OF PROPOSgD ocou- 1JNMVM TA" OOmn TRjiB ewRcEL zoMe AcnONIS AT sonmixa nsB sQpr GRavr rnM pr" wwIMIUKvBVoa IPEKWO uisw4oa. I i-z Ize69-sd I Nm Iauhmmnd ~ooo I B-i I m,r Ium Iatyorspcime WS-78W d4MIOM I I I I I I"ea I suNed to I , ~ ~ravwm mviAan pISCUSS[ON'IDPICS (aleritba@ona. sddMom and oorteedaew Eo wd!!on aortr+wr~ PLANNIN6 DBPARTMBNT (456-2205) CONTACr. JIM MILLGARD • Wriuen commeata were prepared 8t a copy grven to the appl[canL • Submit proper tagal descripuon • peariy dlusttato, label & dimensioa ail propcrty finea 8t centerlines of all foadway nghta-of-way • Verify that ao more thaa SORb of thc site ia cov6md with bwldiog footpnnL • No additioi►al parlung ia reqwred. but displaced parking spaces must be repiaad. paved 8t stnped. BAIGiNBERING Jt ROADS (456-3600) CONTACI'. HOB TURNBR • Written eomments were preparcd 8t a copy given to tha applicant ' The truck ataging arca must be paved aad retroRtted for 208 drainage, or burricade area ofE' 8radley Road and no trafricwill beallawed. Contact SCAPCA, 436-4727 for a pawngwaiver HBAI.TH DISTRiCT (324- iS60) CONTACT: JOHN ANICB'1'I'i ' Mr Anicetti was aot present, hawever, antten commenta wore prepared & a copgr givoa to the applicaaL • Conaect to pubiic sewer Contact Bdly Urhausea at Uut►ties Depsrtmeat (456-3604) • Any construction debns must be dlsposed af at a Iicensed disposal sua No on-site buraiag or bunat is authorized. • The Health OisWct wlil release their partion of tha building parmiL FIRB DIS'TitICT NO. 1(928-2462) CONTACT: PAUL CNASB • Mr. Chasa wes nvt preaent at the meeting. tiowever. de caltod with comments stating there are ao additionel fire protectioa tequiremeaia far this project DIVISION OF BUI4DINGS (436-3675) CONTACr. HOBBY STONB ' Wnuan comments aere prepaced 8t a copy given to the applicaat • For iaformation on the Americaas with Disabiiities Act, call 1-800-433-7232 • Submit specif~c mformauon on equipment 8t installaeiaa. • Applicant must comply wit6 Nonresidential Energy Code pnor to cew6cate af oocupaacy. SEEREVSWAQR PERIKrTRELEASEREGi/J4EAEM'8 r ~ PERMIT RELE:ASE REQUIItEMENTS Please submitseven Msets ofrevasedsite, dr2iaV4 andlaadscapeplansplus tbree (3) complete sels vfcaoastruction draa►ings to the Departrirent of Buildings for ackaowldgement And distnbutroa to aU the appropriate ag+eacies Jn order for aU agencies to eqedi'tiouslypror.ass yvur prqJec4 tt is rmportant lhat submittsls mclude aU aecessary drawiags and dacumeats to iasure that reWew of your project is avmpleted in the /east amount of time Dacuments should iacJude. building addres.s and legal desc4tioa of properly. Spokane County's Project Review Coordinator will be Julie Shatto at the Oiv. of Buildings (456-9675). ~ PLANNING I ENGINEPJd HEAL'IH I F7Rfi IBUILDINGS . 4 i'• fJ 1 t ~ Y1 ~ I Buildmg height ia stories & fcet M X 21 I Exterior ugbting/direction of illumination ~ x 31 1 Fence locauan, 6e*ht, & tWe ~ X 41 1 Parking & traffcc circulatioa plaa N N X 51 1 Parking stalls (number, stnping, dimension, cLrectionel arraws) ~ X 61 1 Paviag ~ X ~ X 71 ISetbacks M X I 8 caina e 1an (s~, drywells, calculationa X WD 9 re ate the Qarrcels into 1parcel M X 10 Certificate of Exemption ~ X 111 eement to pay fees & minimum "wrements list X_ 121 .6pproacb permit for access to Bradley X 131 Rocorded r~operty ceed X 141 1 RID Agreement for Bradley X N_ ~ r 151 1 Criiica114iatenals list for entire site x 161 S o1 Ios~ction ~f~ X , 171 1 Barrier-Free Re4uirements (WAC 51-20) X 181 1 Electrical details X 191 ( Ener~,y details/catculatioas & heat lass X 20 H Heating, veatitation & air oonditioning drawinp X 21 Lightieg budgets X 221 1 Plumbwjt detaiLs _X 231 1 Structural drawtnp with wet stamps & cakula 'ons X_ , ~ I-Signatu of Coordinator 00 ~ . Page 1 OFFICE OF ZHE COUN'I'Y ENGINEER SPOKANE COUN'I'Y, k[ASHINGTON Project: UPS Truck Wash Addition Date 6-20-94 Address: N. 1016 Bradley Parcel No: 13531-1402 Ref No. B94097 The County Engineering Department has completed a review of the above referenced project. The following information must be provided in order for us ta proceed with our review. A) For any new hard surface area, for an asphaltic roof, or a roof containing HVAC machinery, a drainage plan for the site shall be prepared in compliance with Spokane County "buidelines for Stormwater Management". At a minimum the plan must contain: 1. Drainage calculations for stormwater volumes generated on site. 2. Calculations for total impervious surfaces contained within the site. 3. Finished grade elevations for structures to be constructed on site. 9. Finished grade elevations at the top and bottom of the 208 swale. 5. A typical cross section of the 208 swale. 6. Calculations to justify the number and type of drywells proposed. 7. Elevation of drywell inlets where applicable. 8. Copy of the proposed landscape plan. B) The subject property is affected by the "Findings and Order" and the "Conditions of Approval" for the following land use action: Final Plat PE-1138 C) The following improvements within adjacent Right of Way are required prior to the release of a building permit: 1. You must submit road and drainage plans for street improvements. These must be prepared by an engineer. Plans must be prepared for the following streets: a. Bradley Road, Typical Roadway Section No. l, Access Standard. All required construction (sidewalk/curbing/paveinent) within the Public Road Right of Way is to be completed prior to the release of a building permit or a financial guaranty in an amount estimated by the County Engineer to cover the cost of construction or improvements shall be filed with the County Engineer. Required plans are to be submitted prior to estimating the amount of the financial guaranty or permit release. . • Page 2 2. As an alternative to the required road improvements the County will accept an RID/CRP agreement "Notice to Public No. 6" on Bradley Road. 3. Please submit a copy of a recorded property deed from the Auditors office for the subject property. Upon receipt of the deed our staff will prepare the RID/CRP agreement. 4. Approach permits must be obtained, after a site plan has been approved, and before the issuance of a building permit, froin the County Engineering Department for any new or improved driveway approaches to the following streets: a. Bradley Road. This includes the existi.ng approaches on 8radley foi which there are no records of approach permits issued. D) Insufficient i.nformation was submitted with the proposal. We are unable to proceed with our review. Uu1e will need the following before we can proceed: 1. Site Plan. 2. Drainage plan as specified. 3. Other information: a. A parking and traffic circulation plan shall be submitted and approved by the Spokane 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. This will pertain to the truck staging area north of the main building which is currently unpaved. E) Utility Condition: Permittee is responsible for arranging for all necessary utility adjustnaents 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 nat be completed until this document is executed. This document is attached to these camments. Please return the completed Agreement to your contact person at the Engineers Department. The applicant or his representative has been given a minimum requirements list. This list is not inclusive of all the requirennents needed but should be used as a mini.mum guideline. Without the "minimwon" requirements the Engineers Department 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 persan at the County Engineering Department is Robert Turner, 456-3600. 4c ~J'QON.r~ Z.~ ~'Oi"tK ~✓7.f' . . _ k14 REVIEW CONlMENTS SPOKANE COUNTY ENGINEER or~ DEVELOPMENT ENGINEERING SERVICES " ,q„ d PROJECT B94097 REVIEWER: Paul Leann c~ijr' PROJECT NAME: UPS WASH TUNNEL DATE: 15 Jul 94 ADDRESS: 1016 N. Bradly REVIEW 1 CoNMENTS Approach Permits are required on all new approaches as well as all t/4e414 approaches that will be altered. Contact Sylvia Lightfoot at the 4 r UPl County Engineer's Department. Approach permits for county roads wlll not be issued until a site plan is approved. A benchmark is required for this project. A benchmark is a physical dwe• zaark or object used as a reference for elevations. This point must C: j be left undisturbed by construction. Please indicate on Site Plan. . The County requires a Spokane County Type 4 drywell lid for drywells sn 208 swales. Specify on the drawings this type of lid. ~ See sheet attached. Show a typical section of a swale. The swale must be sodded and V/0' side slopes should not be steeper than 2:1 for up to 12" in depth. For swales with greater depths use 3:1. The top of the swale should be a minimum 2 in. above the drywell lid. I/PrS4 TJse inlet structure if concentrated flow is utilized. Recommended A.C,rf*tstructure is type 1 inlet. See attached sheet. ~ Provide contours or suffiGient spot elevations to check site ~ grades. One-percent is the minimum requirement without special construction requirements by a licensed enqineer. Show the valley section to the east of the wash tunnel. ~ Clearly show the existing asphalt on the plans and where the runoff drains to. If it drains across new asphalt, please include the eYa.sting in your "208" calculations. Receive approval of the floor drain from County Health Department v ~o do and forward copy. 4~, Right of Way dimensions, from centerline of adjacent roads to property lines should appear on the plans. _ A 1 ~ % I ~ JUL 2 2 't99~4 ~ , SPUKAHL CUUNTY ENGINEfR 410to Property line dimensions of the entire parcel must be shown, not Just the portion being constructed. , An RID Agreement needs to be siqned. The county is writing up the document. If any additional information is needed, you will be ' contacted. All plans subAU.tted to this department are required to have a V/ professional enqineer's stanap or registered architects stamp by state law. Architect stamp must include a signature and date. Professional Engineer stamps must include the current seal and expiration date as well as signature and date. ~ ~ 2 ~ . ~ . DrainaQe Calculations Submittal Project. Urnted Parcel Service - Spokane Center Wash Tunnel Additron Engmeer John Martm, P E (TRA) Date 6/16/94 Narrabve Urnted Parcel Service (UPS) proposes to construct a wash tunnel faality for the washing of package cars and trucks at their facility on Bradley Road in Spokane County The facility wnll consist of a wash tunnef, 22' ade by 150' long, and an adjommg equipment shed, 13' wrde by 105' long The buildings will be roofed with asphalt roofing materials Asphalt concrete pavement mll be constructed around the facdity for the circulabon of vehicles Total impervious surface area for the roofs and pavement is 27,000 square feet Approximately 14,000 squane feet of the proposed wash tunnel srte is cuRentiy paved The UPS site is wthm the aquder sensibve area of Spokane County. The site is underlain by medwm dense to very dense ailuvial sands and gravels Stormwater runoff on the developed portion is directed to catch basins and discharged to drywelis As part of the wash tunnel improvementst UPS proposes to collect the stormwater from the building roofs and surroundmg pavement areas and provide treatment and inflftration through the employment of a grassed perccolation area. A Type B drywell will be instalied to handle overflows The stormwater system has been designed m accondance vnth the "Guidelines for Stormwater Management" {GSWM) of the Spokane County Engineers Office Runoff Treatment Calculations Per Sechon 5- Control of Runoff Quality of the GSWM Generai design equabon V(gpa) = 1/2 inch X 1 ft/12 inch x A(imp) For impervious areas of irregular shape• D x Ws x Ls = 1/2 inch x 1 ft/12 mch x A(imp) D= 4" = 0.33 ft (per GSWM) OFFICIAL PUBIIC DOCUMENT WS = ? SPOKANE COUNTY ENGINEEA'S OFFIf,E Ls = 240' (per sde layout) A(imp) = 27,000 square feet OR G Nk. PROJECT 9 Employmg the fomnula yieids the follovwng. SUBMITTAL # 0 33 ft x Ws x 240' = 1/2 mch x 1 ft/12 mch x 27,000 sf RUURN TO COUNTY ENGINEER Ws = 14 2 ft (say 15) A grassed percolabon area of 15' by 240' will be sufficient to provide appropnate treatment for runoff quality. , } RECFIVED JUN 1 1 1994 1 s'=OKANE aOUNTY ENGINEEA r,,, , Draina4e Desiqn- Per Section 4- Oramage Design of the GSWM The only dramage facility other than the grassed percolabon area is the overfiow drywell Runoff volumes vinil be caiculated per the rationai method to determine if the volume of runoff can be adequtely handled by the one proposed dryweii Drywell, Type B capaaty =1 cfs (per paragraph 4-41) Rabonal method formula• Q= CIA Time of Concentration calculabons Overland flow over paved surface from farthest pomt to percolafion area. 15 ft/sec x 280' = 420 seconds = 7 mmutes Time to 0 4" de th overflow hei ht of drywell) now APequired raint~all to produce 1188 cf from the impervious area 27,000 sf x depth = 1188 cf, depth = 0 044' = 0 52" From rainfall intensity/duration curve for a ten year storm at a 7 minute time of concentration, the rainfall mtensity is 2 2 inches/hr Time for 0 52 mches to fall can be interpotated 0.5272 2 inches/hr = 14 minutes Total bme of concentr°ation = overland fiow bme plus bme to fill percolabon area Tc = 7 minutes + 14 minutes = 21 mmutes From the rainfall intensity chart for a ten year stortn at a 21 mmute bme of ooncentration the intensity (I) = 14 inches/hour Employing the rabonal formula: Q= CIA C = 0.9 (paved areas) I = 1.4 inches/hour A= 27, 000 sf = 0 62 acres Q =09x1.4x0.62=078cfs The proposed Type B drywell has a capaGty of 1 cfs and thus Hnll be able to adequately handle the computed peak fiow of 0 78 cfs 2 EIdGINEE,RING ID : 206-343-9537 JUL 14",94 8: 32 No~ .043 P`. 01 . 00 ~ ~ a ~ ► ~ TRA FaX ftese'cefi►erure "wtngpagrea to: , ~ t ► To: Paul Lennemann ~ Commy: Spokane County Phona: 508 • 456 - 3,600 Fe.x: 509 • 324 - 3478 , From: John Martin Company: TRA ' Phone: 206 - ,224 -4704 Fox: 206 - 343 • 9537 E ' D81e~ 7/14184 Pages lndudlng ihls aover page: g Com,nents: UPS Wash Tunnet •,Civd, Calculations • For Review PnoJect Number. Our'Fi4X Nne Is open 24 hours s day ENGINEERING ID:206-343-9537 JUL 14'94 8:33 N0.003 P.02 . . ~ ~ , ~ ~ UNITED PARCEL SERVtCE - SPOKANE CENTER ~ WASH TUNNEL ADDITION « CIVIL ENGINEERING CALCULATIONS SU6MITTAL e ~ ~ ~ I nf t~~4 v . ~41 ~ . . ~ ~ rpz 4 t+rN~ ~ Er.PItaE$ 2/15/ri ~ ey: rRA EnAineer. John J. Martin, P.E. Date: Juna 30, 1884 1 ENGINEERING ID:206-343-9537 JUL 14'94 8:33 No.003 P.03 DrainaQe Caiculations N,ove: ~ United Paroel Senrice (UPS) proposes to construct a wash tunnel facitlty for the ~ washing ot peckage cars and trucks at their facility on Bradley Road in Spokane ~ Courtty. The faciltty w111 conslst of a wash tunnel, 22' wide by 152' tong, and an adjoining ~ equipment shed, 13' wide by 105' long. The buildings mll be roofed with asphait r roofing rnaterials. Asphalt concrete pavement will be constcucted around the facility for i tlhe Grculation of vehicies. Total impervious surface area for the roofs and pavement is ~ A,840 square feet. Approximatety 14,000 square feet of the proposed wash tunnel , site is cumandy paved. The passenger car perking displaced by the wash tunnel will be replaced by expanding the existing car patking area 20 feet to the north !n addition a truck and trader storege area wil b avad in concen with the wash tunnel project. These two parking areas ~nnll I resuit i 1~250 square feet of new impervious surface The UPS stte is within the aquifer sensifive area of Spokane County. The site is ~ undetfain by medwm dense to very dense alluvial sands and gravels. Stormwater ~ runoff on the developed portion is directed to catch basins and discharged to dryweils. M As part of the wash tunnel improvements, UPS proposes to collect the stornnwater from the buitdinp roots and pavement areas and prowde treatment and infiitration through ' the amployment ot grassed percolation areas (208 swales). Type B drywells will be ~ Instslied to handle overflows The stormwater system has been designed in accordance with the "Guidelines for ~ Stormwater Manegernent" (GSWM) and drainage calculation sheets of the Spokane County Engineers Office. F Project pian reference: Sheets C-1, C•2, and C•3 T Area 1- War T~ei and Adjacent Pavednent B"ff Treatment Calcutationss jG~ Genaral design equation for 208 treatment swates: Q Swale depth x swale area =(imperwous surface area x 0.5) / 12 JOK AMOM~ ~ . impervious surfece area =(120' x 272') (ZE0 s area that will continue to drain to the south to axis~ng drywells} = 28,740 sf Swale depth = 0.5 fL {per County drainage calculaflon sheets} Utilizinv the peneral design equetion: 0.5 ft. x swat6 area = (28,7A0 sf x 0.5) / 12 Swale area * 2g395 st 2 ENGINEERING ID:206-343-9537 JUL 14'94 8:34 No.003 P.04 ~ ~ Swale OesiBn: Select 85 ft. for a swale lengrih to confonn to site layout requirements ; 2,395 sf / 95 f't. = 25 ft. (required swale width) . Provide a 208 swale with bottorm dimensions of 25 ft, x 95 ft. and a depth of 0 5 ft to t me~gre ~ Ce~le~ vadon of an overflow dryweil. S~nrale will be ptanted wrth a"dry grsss seed ~ pe nty specifications. ' Drtpjj.Palcujeti s: Runoff flow calcxilaNons per the retional method. Q= ClA . Time of Conoentration calculations, ~ Time for ovadand itow over paved surface from farthest point to 206 swale• Z fps for 270' s 135 seconds = 2 minutes ~ Time to fill 208 swale area to 0.5 ft, depth (overflow height of drywell): ~ Volume of 208 swate: 25' x 95' x 0.5' =1,188 cf Required reinfali to produce 1,188 cf from the impervious anea• 28,740 sf x depth =1,'186 cf, depth = 0.041' = 0.50" (of rainfall) Design storm rainfall intensity = 3.2 inches/hour (per the Spokane intensity/duraflon curve for e ten year stomn at a Ume of concentration of 2 minutes) E Interpolate time nequired for 0.50 inches of rain to fall as foilows: ~ 0.50" / 3.2 inr.hes/hr = 0.16 hours = 9 mmutes i Total time of oonoentration = time for ovedand flow plus tlme to fiil 208 swale ~ Time of ooncentration = 2 rninutes + 8 minutes =11 minutes . = Employing the radonal formula. Q= CIA C = 0 9 (paved areas) , i= 2.1 inches/hour (per Spokane intensity/durabon curve for a ten year storm with a ~ time of concentration of 11 minutes) A= 28,740 sf = 0.66 acdes ~ Q= 0.9 x 2.1 x 0.66 =1.25 cfs Drywall, Type 8 capacity cfs (per paragraph 4-4.1of GSWM) ~ Two drywells (type 8) %nnll be required to handle #he calculated overtfow peak rate of ~ 1.25 cfs. Area 2- Cat and TrucklTrailer Park,nq Rur~off Treatment Calcu a o s• General design equadon for 208 treatment swales. Swale depth x swale area =Ompervious surface anea x 0.5) / 12 Impennous surfaoe anea =(150' x 475) = 71,250 sf ✓ S1'vale depth = 0.5 ft (per County drainege calculation sheets) 3 ENGINEERING ID:206-343-9537 JUL 14994 8:35 No.003 P.05 ~ Utiffzing the general desiQn equetion• ~ 0.5 fL x swele area =(71,250 sf x 0.5) / 12 Swele erea = 51838 sf u/ Slivele Deslyn: , Select 455 ft. tor a swwale length to conform to site layout requirements 5,938 sf / 455 ft. =13 tt. (required swale wjdth) = say 15 ft for constructability ✓ r Provide 8 208 swale with bottom dimensions of 15 ft x 455 ft. and a depth of 0.5 ft. to the prete elevetion of an overflow drywell Swale wnll be pfanted with a udry grass seed rnbe' per County speaAcetons : Dnwell Celculatia= Runoff flow caicutations per the raUonal method. Q= GIA , Tjme of ConcentreUon catculations: ~ , Time for overland flow over paved surtace from farthest point to 208 swale: 2 fps for 130' m 65 seoonds =1 minutes c ` Time to fiII 208 swate erea to 0.5 ft. depth (overflow height of drywelQ ~ Volume of 208 swale: 15' x 455' x 0.5' = 3,413 cf Required reinfall to produce 3,413 cf from the impervious area• ' 71,250 sf x depth = 3,413 cf, depth = 0.046` = 0.58" (of rainfatn Design storm rainfall intensity = 3 2 inches/hour (per the Spokane mtensity/duration curve for a ten yeer stornn at a bime of concentrabon of 1 mtnutes) Interpolate time required for 0.58 inches of rain to fail as follows: O.fiB" / 3.2 Inches/hr = 018 hours = 11 minutes Total Ume of concentragon = time for overiand fiow plus time to fill 208 swate Time of ooncentration =1 minutes + 11 minutes =12 minutes Ermployinp the rational formula: Q= ClA C = 0.9 (psved areas) I= 2 0 inches/hour (per Spokane intensdy/durabon curve for a ten year storm with a time of voncentrstion of 12 minutes) A= 71,250 sf o 1.64 acres Q= 0.9 x2.0 x 1.64=2.95cfs D eli, Type 8capacity = 1 cfs (per paragraph 4-41 of GSWM) Three drywelis (type B) wili be required to handle the cqiculated overflow peak rate of 2.95 cfs. es 4 REVIEW CONMENTS SPOKANE COUNTY ENGINEER DEVELOPMENT ENGINEERING SERVICES PROJECT B94097 RBVIEWER: Paul Lennemann PROJFCT NAME: UPS WASH TUNNEL DATE : 15 Jul 94 ADDRES3: 1016 N. Bradly REVIEN 1 COmmNT3 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. enchmark is rec~uired for t~iis proj ect . A benchmark is a physical mark or object used as a reference for elevations. This point must be left undisturbed by construction. Please indicate on Site Plan. The County requires a Spokane County Type 4 drywell lid for drywells in 208 swales. Specify on the drawings this type of lid. See sheet attached. Show a typical section of a swale. The swale must be sodded and side slopes should not be steeper than 2:1 for up to 12" in depth. For swales with greater depths use 3:1. The top of the swale should be a mi.nimum 2 in. above the drywell lid. Use inlet structure if cancentrated flow is utilized. Recommended structure is type 1 inlet. See attached sheet. Provide contours or sufficient spot elevations to check site grades. One-percent is the minimum requirement without special construction requirements by a licensed engineer. Show the valley section to the east of the wash tunnel. Clearly show the existing asphalt on the plans and where the runoff drains to. If it drains across new asphalt, please include the existing in your 11208" calculations. Receive approval of the floor drain from Countp Health Department and forward copy. Right of Way dimensions, from centerline of adjacent roads to property lines should appear on the plans. 1 Property 1-ine dimensilons of the entire parcel must be shown, not just the portiorn b'eing constructed. Ari RID Ag`reement needs to be _signed. The ~county is writing up the document. If any additional information is needed, you will be contacted. ~r J 5 2 1 ~ - NOTICE OF TRANSMI TTAL' f ~ ADOt1:SSI ~ . 1'-'nJECl' 11-Q► _ ~ ~ j~ l.~ ` ~.c~ ' .'~/I • a7 ~ I3UStNr.SS NAMi: r 1'AttCL=[. NO /LEGAL Ur.,,SCKII'TION 'it ' 3 5 ~ ~ ~ ? , o a~.- r~RoPoscu us t-, L.c~~ ~ I,, , 2"`Z 0 C nACT. 6~~,--,L4 ,P ` HO • ~_l' _ ~ ~ J~ / eZ~ J l 3 1 REASON FOR TRAIVSMITTAL . _ . _ - - _ ~ PREAPPLICATION CONFFRENCE PRF;CONSTRUCTION OONFFRENC6 OTH i DATE: TIME: JUN' 2 11994 I F _ ' SPOWE COUIdTY ENG1NfER DOCLfMENTS CIRCULATED DLSTRIBUTED TO; ROo -nESCRCPnoN Bun.onNos PLAMMNG ENGMEFRS NFALTH SCAPCA FtRE OlST 0 ornHEit• u.+, . ~ Site Plan (new) reviser ~ ' f( Crif ical Materials I.ist ~ Parking Pian ~w[ Sigoage Ptaa ~ , MY ~ . , . , , • ~l~ rY 1~ Y ~ i~ wM~• ~M• Drainase Plan Drainage t;atculations w M~ ir~ r a~• ~hY4i~r ~ ~wr ♦r ~ Agreement to Pay Fees trrigacion Plan ~ ILandscape Plan ~~r ~ o.y Poomissory Letter *w-~Rww^-~~`~,~~ Y YYYMM~M I/I iM1 ♦ MI »,II~M ~YY d i L~IY~i W~l~ tw7ll mme JTraffic C,rculauon Plan - e t.-......... C i - - r •+e. - Construction Drawings - - ~ ~ ~ ~ - "0 1^~2~~i#♦ f Floor Plan x WE-L~1p4f_l • ~~~L-~--r .X , ?he above itcros hale, beeu l ' rec~~~vrd: ' 1 ~r Date of Transmittal:& Review Cooatinat . OFFI - ~i OFFICE OR G NA. cfff&W& Oy ~ SUBMITTAL 9 ~ .Sl)nArulr Cnuniv Dianim~ (IrQuil(liup' * 1026 Wenrt 8rra~~~~wv As-rirttct NOTICE OF TRANSMITTAL nor~ tl:ss PRoJEcT a I3UStNC.SS NA E PARCEL N() /LEGAL ~ DESCR[PTION ' , ,~~L PnOPOSED U E• ~ "E UD6,41Y ENGINEER CO T~CT. ~ ~'HONE• ) c.-L&, a REASON FOR TRANSMITTAL , PREAPPLIGATIAN CONFERENCE PRECONSTRUCT[ON CONFEREMCE OTHER DATE: TiME , DOCUMENTS CIRCULATED D1STRiBUTED TO: ~ RECO DESCR[PT[ON BUiLDlNGS PLANNINO BNGINEERS HEAI.TH SCAPCA FIRE DIST ~ Ort'HER- tt~, _3;~J&Ee Plan (new rev~ ' v~ +7. <<\ r { . '0' tik.L4~ •i~ ,r ' ~ ' ~~.~}y~ ' `~y ICntical 1V~aterials L~st Parking Ptaa ~ 1, R ~p I~►t pI(~ ~ ~ v7 ~ Jt~ ~ .l*.t? ~ }r V ~A _d ~ f ~ 7 Signage Plan ~ ~ 1 ~~~::~:r; t ~yyy ~ gb Plan Q}~. -R- X+Sr? . ~`Y~.~ i.~ htin , ~4 Qs~{'~i Draioage Pian `y ^c 1 YyY y'• ~ ' ~ ..r5~" Y ~„~~3"~ Drainage Calcula4ons s~~ ~ , > ~ ~ ' K ~ ~r ♦ P r ~ Iw • ♦ ti f A' „i}. t ~ iX fwr Agreement to Pay Fees A~ sx }r y, { } r , Irrig$tion Plan ~ Landscape Plan ~ ~ µ µ.,`y { M. .fif ~ I ~ .....j.~ ~ • F'~"c ~ .a ~''~^`~3~v^~a~ ~d ' . > ~ Y% . ~ ~kti "3• r : : t;as Pconussory Letter M\ 1 I I 1 \ I \ ~ • Landscape Cost Estimata ~A tiA * I Yi. v!~ +..M1 !AA ?'lyV~l MMIM10 ~Wo I' 1 I ~M 1~~ ~~hl M Vt Traffic Circulation Plan . a , ~ Construction Drawiags ~ , - - . a x ~ h.~ ; ~ ~ . ~ , . f . ~ • 1 tY ~ ~ FlooC Plan ~ ?he crbove Items have bowi recoved: . / , 'C~- r Date of Transauttal: ~ CQ ~ Review Coorcltnat . Circulated by Sr~katie Coiutry Diviciun ofBurlrlrrrp * 1026 We-rt Bre,u.,livay At-etiuc ~ SjWane, WA 99260 (509)456-3675 10 ~UN 2 0 1994 . . 3 • vve ~~~r'UKC~M~N 781' ' tiUl:s9 ~ SPLCIAL iYARRMITY DEED Ycl. 422 1645 a3q ~o '!he erauto7c, BURLINGM1 NOR"fliERN INC., a Delaware corporatfon, for and in tonsideration of Ten and no/100 Doliars (a10.00) and other good and valuabie cansideraLion, in haod paid# grants, bargafns, sells, corrveys and confirms to SOUrH SEVEIV7'H CORPORATION, a washington corporation, herainafter called Grantee, the follavfng described seal estate, situated in the County of Spokane, State of Mashingtcu: i Lots l, 2 and 3. Block 3, of the Burlington Northern Parbrater Industrial Park, being a subdivision located in the West Nalf of the Northesst Quarter ({11/2 NE1/4) of Section 13, 'formship 25 North, Range 43 Cast, W.Af., in Spokane Cotmty, State of Washington, according to the recorded plat thereof dated Septomber 18, 1978 on file and recorded under Auditor's No. 7809180310. SUBJECT, however, to all easements, encwabrances and restrictims of rocord. EXCEPTING AND RESERVING, however, unto said Grantor, fts successors and assigns, all coa2, oil, gas, casingltead gas and all ores and miaerals of every kind and nature, axcept sand and graval, underlying the surface of the premises horein conveyod, togeLher with the full right, privilege ~ aad licerjse at any and ali times to expiore, or drill for and y4 to protect, conserve, midna, take, remove and markeL any and ~ al2 sucb products in any manner ahich Nill not damago ~s structures on the surface of ssid premises, provided, however, that 4rantor, by this paragraph, shall not bo entitled to erect any perraenent surface structures and shall noL be entitled to any perzanent use of Lha surface of the preudses and provided further that the use of the surface of the premise.s shali oniy be of a temporary nature and shall not interfere Nith the operation of the business of the Grantee. As s further cons3deration for the premfses herQin conveyed, Grarctee hareby agrees to begin construction on said preadses aithin two (2) years from the date herein, a building of masonry eonstruction containing not less than 50,000 square feet af floor area to be used in the customary business of Grantee. In the event Crantee has not begvn construction of safd bui2ding within the said two (2) year period, Grantor shall have the right, for a period of one (1) year frcm and after tfie expiration of sai8 t+ro (2) year period, to sepurchese said premises for the same considerstion paid by Grsrrteo, plus any costs and expenses (including all costs of constzuction, architocts' fees, permits, etc., and all costs incusred in this conveyance and the re- comeyance) by Grantee, or fair market value of the prenu.ses and any iaprovements, as of October 30, 1978, ahichever fs greater, Canveyarce ~1% 1~~I t t/llr IL Cc ,bn r _ D~N/~~G 'REVE U[ ~ ~ ~ t. ~ ~ w Pa t. j- _ ~ C3 0p VARIANCC # AI'PI.ICAN'I'S NAM!' 0 „it 'f/ JI-atafi&'r I3LDG # ~ ~o -7 -I..t . L u 07HER # MAIL[NG ADDitCSX#°~ ?YA,1A s J 3 , T R 40.3 ~~~y~ G~/ - 4-? PAItCEL # 3/•~ I / y 4 O. IYI4F PHONL - HOMF C~►~Y ROAD NAME Q),rpe- Iel R~• PHONE - WORK-ft"p) 9 x~=,s`y y~ G►''~~ ,4/, t-t 9'Y The followiag documents are needed before the Spokaune Counry Enguteees Department c,an begin processwg your variance or building application as approved. (509) 456-3600 L' AGREENiENT TO PAY FEES have been collected. t-~rRECORDED COPY OF DEED, DEED OF TRUST, contract or conveying mstrumenL These may be obtained from the County A►uditor, 2nd floor of the Courthouse. _ I.EGAL DESCRIPTION of your access easemenL "✓~A LISTIIYG OF NA11ES of mdivcduaLs who will be signing the documents. These individual names I shouid appear a.s the person(s) [egalfy sign thew dame. " - 4~I' : rt /,r You a W9_V e I~1lz o~ ~ L-- A CtTRREN'T ASSESSOR'S MAP which depicts the lvcation of your properry. OWNERSHIP MICRO-RQN. These may be obtaiaed froai the C,ounty Assessors, lst floor, of the Court6ouse, Jefferson entrance, 2nd door on the left. 13e oaressaty documeats will be prepared by the Engiweer"s Department, Right-0f Way Section, upou provtscon of the information noted above. You will be notif'iied when ttie documents are ready for signature. The documents may be sent to you, bowever, IT SHOULD BE NOTED THAT ALI. SIGNATLTRCS MUST BE NOTARIZED. 'Ihe Engineer's Department does bave notanes awa,lable if you choose to sigo the documents at our office. Ptease ca11 when ready Please mad when ready Nouce to Pub4c ~ Right-of-Way COMMEN'I'S ~ L + Right-of-Way Agent Forward to you from fclpftoeea 192 . ~ rl? ~ ~ e • a • Y~F 422 1646 upon giving Crantee writtcn notice of Grantor's intent to repurchase the premfses. Upon the tenc38r of snid consideration to Grantee by Crantor, Grantee shail reconvey title in the seme condition as grented to Grsntee by Grantor, sub3ect, havever, to all existfng improvements and all e$sements reasonably granted to) serve the Premises ruid inprovements. Crantor shall pay all costs and taxes ar►d all recording fees and expenses itt connection with the recanveyance shouicl Grantar elect to exercise this option. . ?fio Crantor for itself and for its successers in interest does by these presents expressly limit the covenonts of ttie deed to thosa herein expressed, and oxcludes all covenants arising or Lo arise by statutory or other inplfcations, and daes lieraby coveaant thet against all persons whomsoever lawfully claim3.ng or to claim by, through or tmder said Grantor and not othen+isc, it will foreve= warrant and defend said described real estate. Dated this 15th day of recember , 1978. BUTtLINCI'0N NOR1f1LRN INC. . . 's y,Ay•.t~ ~ ~ . . . . 94k- ' r co ~11. h ° 11l1f 1` ~ ~i rdsi~ ~S • r ~ ~ ~ ~ • P~~~I~A MA110NAL 111tf ATTCST: DEc 16 1140 M '18 ~ a i,( rr ~ t , Ay. sUOITOR • 54j•ANEv"16vf" *ASM. BY 06--NLAN D °F oui 1 400 As set . Secretary STATC OF M1NNCSOTA ) )ss. COIINTY OF RMLSCY ~ On this 15th day of December ~ 1978, bcfore me personaily appeared J. C. Kenady and F. A. Beminct , ta me known to be Vice President and Asst. Secretary of the corporation that - executed the within and foregoing instrwnent and acknowledged said instrurent to he Lha frca ar:d voluntctry act and deed af said cospor3cion for the uscs anJ purposes therein taentioned and on oath stated that they were authorized to cxccutc the said instrument arid that the scal affixcci is the corporate seal of said cenioration. Iti' WI?NCSS MiE[trOP, I have hereunto set rry 1iand an(f affixed m?• o£ficial seal the day and year first above aritten. ,1- ) . ~ 6AAlLiUMJAU ~ -MbvFii , ~ . 46~ f'•' • 6 .rr• ';`~+~r s..~•_ . a Natnry t, ie in 1nc: Ar the 5tatc ~ ~r~,~ • ~rs'.~v ~x w„R~, of 'finn'esdta, resid3ng at St. Pttul. kt""~rtS'• tt~tlt►t~ h Ln"C~tit~l► rrt !W commisslon etii irea ~s~~r t',,~ ! • . ~ ~ ~YO~ o? ~l s.. /y~ parce! #.~`/.f/, / ~ , 'Y Log In Oate~ • ~ s~ Road Name/No: adu Purpose Preparec By Req By (Land Oev) ~Q. 6 N0_ E TD TjtE PUB~IC Ri0 wAZVER, AGREEHENT AND COVENANTi KNOW ALL MEN BY THESE PRSSENTS, ThBt SOIITH SEVENTH CORPORA►TION, a Washington Corporation, , being the owners ot the followinq deecribed lande in consideration of Mutual eenefite to be hereafter derived do for themaelvee, their heira, qranteea, asslgna and aucceeeo:(e) in interest hereby agree to authorize SpokBne County to place thelr name(s) on a petition for the formation of a Road Improvement Dietrict (RID) by the petition method purauant to Chapter 36.88 RCW, which petition includee the owner(e) progerty, and further not to objeot, by the eiqning oP a ballot, or not to protest to the formatfon of a RID by the reeolution taethod pureuant to Chapter 36.88 RCw, which reeolution includee the owner(e) property. If a RID ie formed by either the petition or reeolutian method, se provided ior in Cbapter 36988 RCW, the owner(s) or succeeaor(e) further agree: (1) that the ianprovemente or construotion contemplated within the proposed RID sre le8eible, (2) that tbe benefite to be derived from the formation of the RZD by the property irtcluded tberein, together with the amount of any County participation, exceede the coet and expenee ot lorcnation of the RID, and (3) that the property within tbe propoeed RID is eufficiently developed. Provided, further, the owner(s) or eucceeeor(e) ehall retain tbe right, as authorized unde: RcW 36.88.090, to object to any aeeeeemant(e) on the property ee a reeult of the irngsovemente called for in conjunction with the formation of a RZD by either the petition or reeolution method under Chapter 36.88 RCW and to appeal to the Superior Covrt the decieion of the 8oard ot Coutsty Commieeionere affirming the final aeeesement roll. It is further aqreed that at eucb time as 8A RID ie cre8ted or any Road improvement Project is eanctioned by Spokane County, the improvemente required (eurb, eidewalk, drainaqe control and paving to exieting pavement) ehall be at the eole expenee of the underaiqned owner, their heire, granteee and aesigns without any monetary participation by Spokane County. The RID waiver contained in thie agreement ehall expire after ten (10) yeare frorn the date of execution below. However, at the expiration date the owner(s) o: successor(e) agree to conetruct the reguired improvementa at their own expeneep pay to Spokane County the then eetimated coet oY the required improvemente to enable the county to camplete the eamel or'furnieh a bond or other eecure metbod suitable to the County, providinq for or eecuring to the County the actual conetruction of the improvemente. - s,- + 1 Lr e • 1 ' The above conditione and covenant apply to the lollowinq described property: Lots 1, 2, and 3, Block 3, of the Burlington Northern Parkwater Industrial Park, being a subdivision located in the West Half of the Northeast Quarter (Wi NEi) of Section 13, Township 25 North, Ranqe 43 East, W. M., situate in the County of Spokane, State of Washington, accordinq to the recorded plat thereof dated September 18, 1978 on file and recorded under Spokane County Auditors No. 7809180310 , These requirements are and shall run with the land and shall be bindinq upon the owners, their heirs, succegsors, or assiqns. (over) il IN WITNE.SS, WHEREOF,7 the undersigned has caused this instrument to be executed on this day of _ 1994 SOUTH'SEVENTH CORPORATION, A WASHINGTON CORPORATION STATE OF WASHINGTON ) COUNTY OF ' ) ss, Ecertify that I knowor have sausfactory evidence that - `is che person who appeared before me, and said person acknowledged that+ (he/she) signed this ;inscrument, on oath stated that (he/she) was authorized to execqte the instrument and acknowledged ,it as che of sotrrx"IsMNTk{CCORPORAT?ON to be ch`e free and voluntary act of such party for the uses,and purposes mentioned in the instrument. Dated: Notary' Public In and for the, State of Washington, residing at tofway\formsVwdeedlkmh ~ ~ i ~ BUILUING PCnMIT CWECKLIST ~~~~f~r`1 }}}~~~j~ PRE= p~, L///. =Y~M i~ V:~:~ 1{~~t~~r,s2"~~~i.r~.~~~ 7 w i n,l$~ r~ r{l ~r~ ~ ~`~Y O ~ Ps ~FIEQUMEQJ COIUfPLF-TED r tSv t~ i,~,'~+Cy~ ~ v2 S f°ti ~`Q~~,y { ~ y 4 r 1 r'~ r r~ • vn..` ~ w~ r ~ } ti~ s ~ ♦ ri~~~~r.riia~ 1~NRGEI~ENfi,v.S ~ t~I4t f5 ~ ~ 3 i r"' s+rd ~ f'~` y'1 1~C 1 ti {f'~ h~ rr ~ r kXS r~ tx rx r ~VN {''t g y~rr S r~#n h S v Z t~ ~4 i~ -RGREEINr=Ni'`f.'S~T(3_PAYFEE9 ' . - . RIGIIT OF WAY DEPAfiTMENT DEED EASEMENTS ANV RID LEGAL DESCRIPTIOtV CIIECK , LETTER FROM SCAPCA RECIPROCAL USE AGREEMEN T s S~)f~ } tiD i ti,p 4 ? fy Y r ~ i)~ r~,F { ? ~ ~~'y♦ G"' Z` ~r'}~ ~ ~ i ti' v~,~T ~i ~~~I j~ r~¢ }Y v r f Y ti~ ~~.'~''a v~}'~ C Y ti~ ~ ~Y■ k 5, y.}~k ~ ~ ~+~"7~S'J~} S~ d {r'> ? Y. ~ t rY S ly`,. . ~ rr' ~i,_ ~ 4i. . } i ~ti~y' Pi. 1 ~ ~V ■T { i ~ ~ .•1 {J~ ~:ti ti L..C ..1M1~~ C~ ~ ,..,.~..~.}..sS~~! • ~iYt Ll{F.J NORTH~RFIDW ~i SCALE ✓ BENCHMARK ROAD NAMES R/W DIMENSIONS ~ PROPERTY UNES ~ SET-ASIDE CRADES %Now 401, STAMP .WWO 0000 • PAVING vow TRAFFIC CIRCUTATION PLAN *VOW o~. APPROACH PERMIT . ` .r rf. v r r 4 r ~ ~ F '~t, n vF1 ~ • ~r ~ ~ r { t. ~ ~i ~ G ~d } { • (aj ~r r tir S v H~, ~ ~y,}~ yv 1„~[ ~ n 5 % SY~ a t ~ w • ~ ~ ~ I ♦ br N i~ 2oV VALIMIATIOW rYarr4r k, ~ ?2 { 4~~ SWALE CROSS-SECTIOIV SPECIAL SOIL TESTS ROOF CONSTRUCTION ✓ = HVAC ON F~OOF 000 IANDSCAPE PLAN (208 CONFUCT) DITCH CALULATIONS BACKWATER CALCUTATIONS GRATE CALCULATIONS PIPE CALCULATIONS RETENTION/DETENTION CALCS 10/50J100 YEAR STORM TR-65 ANALYSIS l NV j,~! i~~`` ~ i Y L` tt w fi ~ , • ~ 4y r~ ~ ~r .,>.i r r r X Z f €f'~ > r$i ~ ti r ~ i+ ~ 7~ir Ji ~ h{y ~ n 1 r a ~y 1 S Y{ ~ {3 rrrr+.~5 f'.S ~ti • f v~' l~y.AV ►6E sHE€`TIRiSTING FOAD) • STAMP OWNEAS SIGNATURE ROAD DRAIIVAGE (SWALES, S tRUCT UfiES, "R" VALUE TESTS NEW R0AD DESIGN BOND MYLAR COUNTY STAMP . 1 ep.otMMuaunsNninsIMErwKI ~ ; ~ • ~ ° ~ . ~ ~ ~ PRE=A,PPLICATION:~ ~ z A~ • . PR,,E,-CONSTRtJC~IC~I~:~, ~ ~ ~ f ~ w+ S L n i i'- `"e~']=-e.a.~ ' ~ u`` i ,{i~'' ~ ~ r ~ ~ J~i1r1~.S 1~~'{ ~~Y~ ` • ` ' ~~sf ~ L l 1 • ' A'a ~ ~ < ~ ^t~ ~i r ~ y ' + . ♦ h" ~Y` ~ Y ~ ~`fd r.M1 ~ ~s{ r~ rF~'h'< <r .f ^X~r~ 'Lk L~.~v~~~ Y'1r. Z! ✓ 1'' ~v. i ,~~+~,e R r µ ' ~i " ' t ° "'~t`~~ F •r~.` o-o ~ ^ t ~ ~ V S yy r.~~ f < v' ~ \ > ~t Y S J 0 1 rY py J J!Yl !'~f~\ ~ L` I~ ~ X~ ~ ~ s ~~~~Yu^ , tfF }Y 4 ~ n{~~a ~h• r'~S~`i} ~ ti rr ~V i~' ~r ~a ~ ~ vY~k ~ n { ~n' %I 't ' ~h71 ~ ~,~,,?.t 'ti ?S h/~~ f t T 42~ 7 iK ~ S~;.`\ n ~~r ~ w f f ~ v Z R ti 1~r~D ~ S FT7~siliM IS!~1 i ,<Y 1 J y{ V~'~ JG S , .l'_- f ,c~>~"^ a~'~G~~+~ ~ > ~F~~^C4 ~ V n`r $,~.y i > f~ ~ i ~ . ~ ~4, rn r b~ . ".'F.'¢_{~vYr F +C ~ iWY » r 'f x y~r}- 4 „~f fF 5 ~(~y}~ h' ~ t} r ~v` ~ 4 4 x ~ kfi T.n r, ~n 7 $~{r ✓ vt ?~+r. { 1 ! rn l. AvDREss : 1 o , oWNER: cLa--Z., 4e-c;;L PHONE: A.DDRES S : !U 16)1,o , BUSINESS NA,ME: C.,L p ~ CONTACT. . C ~,y 6 irANi PHONE•. ^ ADDREss: (~oa ~ 31sr -rp LEGAL DESCRIPTION: 9 DETAILED PROJECT DESCRIPTION: . ..e_ . - ti~~ r wMr ~ ti• ~ ~{rivJ ~ w t ,n ~ ~ r~ vt rvi4' ~ ~f~ '^r YX ?Uvsr A'F' rf ~ Fv + S ~/.}i r T • ~ r!~f~F~ v }r 8S~ ti~$ nT C r h rrn s. 4 ~.r ~r r r ~ ~i'~{ ti..< ~.-F } ~ , ~3`f f r,r ~ ~ ~ `4 ti'~x j `~F ~x~ y'} r{ ~ . fJ. ~ ~ JA`, jf+ .,f ~ f~_ti ~ Sk} xj. ~ ♦ I~~~IL v~tl 11YY' ~~~..~~.'~.v Y .~r•~ , A/ I .t n M11 ~ ' Ir ' I S'!. .}f6i~i'.{} f4 4~4.~ 7t-''~ }+M{~>.1~~,.nr ,~ai~r1'Jr~,.~'.` ~ ,eq~ }'a t~, N .i } ? `Gr ~r~•}' '(¢~U~'ry'+~i~ ? ~ ~F ~ ~n 3~ ♦ r i~G ♦ Y' 5 ~ wv~.f ~ 1 1, } fr} ` 1 i~ 1 p~1 /M~~II~I ~~.vw I'+t p+ - ,~i ~ l1 " ' .k ~ M11 ~J J l 'f Yi 8N ~l JJ ~}~(~N} }VlfJri / y~ AM 0 Y •~,$~r{~~ Y 4'• , ti f ~ ~~.,'tt Y r~}~- .{Frrff'3~~iSi~ r s fr +Y ~S r re ~ r ~ x ~rr ✓~t~ tiZ~i{ ) r~~ a~ ~ ~ ~~~^b r }rr {y ~NV}t e e } 1 ~i~ ~ yy y ti~ ~ ,t~. y ~r~ ~~F r ~n~-0~~,7~,~r~.nny~ ~ W ~ ` r,.s {`•y~¢~rf~ y ~ NL i ~.r i '~y G~% ~.r r~ ~ I ~ r GG~ h~ I r 'r✓ ~ .ti . µ . a ~ l~,~r . tYlr~A08if > .,.~r ef~~fia~1 ACTION: R SCREEN: LEGL USEr--1: SHAT CHANGE-REASON: H- ~ LEGAL DFSCRIPTION , ~ JORISDICTION= 11 ROLL= RE PARCEL= 35131.1402 YEAR= 94 PAGE= 1 LINE DESCRIPTION _ O1- 1 10 BURLINGTON NORTHERN PARKWATER INDUSTRIAL PARK L2 831 02- 03- 04-- 05- 06- ' 07- ; 08= 09- 10- . 11- " 12- 02=*L009 HEADER CHANGE ~ , 1 ~ , ~ ~ ~ I - ~ i w, ~ . ~ . ~ S P O K A N I~ ~ C C7 U N'I' Y OFFiCB OF TI18 COUN'iY ENCINEER • A UIV[SIQN ORTIIE PU81 fC WORKS DEt'AR7MENT Director Ronald C f lormann, P C, County Engineer Dennis M StoI? FdeIVIED AGRC~ 1tM1NT TO 1 1 1~~S ~ ~'AY rJ4y 2 0 ENGINEER'S AGREEMENT NUMaER c 1 r 1994 1wUDC- L-NFORC~ Tiiis agreement between Spokatie County and D Au~Q~ MFNr o ' wltose jnlcrest in ttie project is o wyNQ(- U . BgCni, CIE) is entered into tiiis a oday of O uv%#_ , 19 4L~_. Tliis agreement is applicable to tlie project known as: ~•~~~CQ 1 C 1 ~ "~0.S ~ ~J ~AVI~, ffiRlect ad rT~'bt 1 ~ That the individuals ancl pnrlies named herein as having ati intercst in tlie above clesctibed propetty or project agrce to tlie fotlowing: Reimburse Srokane Cntinty for project revicw and insrection fces as specified in Chapter 9.14 of llte Srokane County Code. The fees will b:, bnsed on Actual salary costs incurred by Spokane Counly for praject reviews ancl / or insilectinns rlus a ten rercent aclministrative cltargc, ancl witl he billed montltly as accnied Any Rnul bjlling amaunts, to include any lote fees or any otlter expcnses incurrecl in the oollcction of an ovcrclue account mtist be raid prior lo tlie County's accentAnce of tlie project for filing. 2. The undersigned agrees that tltese fces are clue and payable uron receipt of tfle billing as srecifiecl ebove. 3. Any invopces nat paic1 witliin 30 days oF Ilie invaice clate will be suiijected !o a tate fee cltarge of l°Io per month (12% rer year) on Ilie unPaicl balance af ttie accotint and any accnied late fee charges. !n addition, If any outstanding bAlance on tlle eeoount for Iliis project is not raicl witftin 30 days of tlte invoice date, no fiirtlter teviews of tlte project doctitnents will be conducted until t1te eniire account balance is raid. Any halanee on tlie aceount for this project not raicl witliin 65 clays of tlte invoice clate may result in tegal action or the initatiAn of otlier collectian rroceclures, incliicling referral ta a collection agency. 11ie Spansor will be tiable fur any ancl all expenses inctirrecl by tlte County fur tlte colleciion of overdue acccnints. 4. The monttily billing sliould be sent lo lhe attentton of: NAME: lbav' ADDRESS: ciTY, sTaTE: Wa Z1P CODE: PIiONE DUAO Coa 1~,~ f~ . I understand tliat faiture to pay iltesc fees may result in dclay in comnletion of appraval of tlle project or other possible sanctions. ❑ If tltis fee agreemcnt is campleted by sameone otlier t1iAn tlle Sronsor (i e., tlle project owner or aprincipnl in tlie firm spunsoring the rroject), sucll as tlle Engilleer clesignfng tlie project, tlien wrttten autliorization frpin tlte Sransar specilicolly atitlioriziiig tlie Agettt to exectite this Fee Agreeiiient is atlac:licd to tllis Fee Agreement. SIGNATURF Dy• . ~ (PRtNT NAME) ItETURN YELLOW CnPY TO SI'10IKANE COUN'I'Y LNGINEERS kV%Rareemon fee 8120A3 ; W tO71 RrAilIIWaV AVP_ SnAI[f1t,p_ WA 992G0 0170 r5({91 A56-3GQ0 f AX (509I 456 4715 I i! ~ , S pC) ~ A N~ ~ O U N T Y 9- OFRCE OF THE COUNTY ENCINBBR • A DM6ION OF THE PUBLIC WORKS DEPAR'I'MEN7' Ronald C Horntann, P B, County Engineer Dennis M Seott, P E. Duector June 23, 1994 Jobn Martin TRA 215 Columbia Seattle WA 98104 fax (206) 343-9537 John, lnclosed are the three items you requested during our phone conversation This is one possibJe seed spec 1f you would Uke other choices, then please let me know Please contact me for answers to other questions you may have Thank you Sin ely Paul Lennemann E ] T Ron Horman P E. County Engineer 1026W Broadway Ave • Spokane, WA 99260-0170 0 (509) 456-3600 FAX (509) 324-3478 TDD (509) 324-3166 N E C O U N T Y iki S OFFICE OF THE COUNTY ENGMEER • A DN15I0N OF THE PUHLtC WORKS DEPARTMBNT Ronald C Hormann, P.E, County Engzneer Denms M Scott, P B, Duertor Dry Grass Seed Mix: Provide fresh, clean, new-crop seed complying with tolerance for purYty and qermination established by the Official Seed Analysts of North America. Provide seed nixture composed of grass species and percentages as follows: 20 % Elka Perennial Rye 20 % Durar Hard Fescue 45 % Covar Sheep/Fescue 15 % Reubens Canadian Bluegrass Provide mixture composed of grass seed and fertilizer in percentages as follows: Grass Seed: 90 LBS. per acre Fertilizer (16-16-16 timed release composition): 300 LBS. per acre All seeding of slopes shall be done in accordance with the WSDOT 1991 Standard Specifications, Section 8-01. Contractor to irriqate seeded areas until seed has germinated and has been accepted by Spokane County. `1026 W Broadway Ave • Spokane, WA 99260-0170 •(5U9) 456-3600 FA?C (509) 324-3478 TDD (509) 324-3166 WWSTRING METHOD (TEN YEAR STORM DEStGfdj RROJECT ARDEN TIME OF COAICEMRATIOIV (minuies) DETENTIaN 8l4SIN DESIGN BASIN gW► REYiEWER Lonrtemertn Tc (ovedarta) Tc (gufto Areas 'C A'C NUMBER OF ORYWELLS PROPOSED QATE 42Jwn-94 1 Single (iyype l) 0 Qoubbe (typo B) Ct= 01fi 1.2 = 0 66288 1.57 0.80 1410456 Tobl Ama (calc )(see H1) 220 Z1 = 0 21461 0 83 017 0107171 Tfrtie olC,onc (cafa) (see Ht) 500 l1(A) = 0 Z2 ~ 0 000 OAO 0 Compa5lbe'C' (ca!c )(see Hi) 0.68 N(A) = 0 B= 0 000 0.00 0 Ti11'1801Conc (111111) $QQ e 0 n° p 000 0.w Q Area (A~~) 220 9= 0 D 00 000 0 C FatEar 069 Tc (A) a 0 00 d a 0 000 0 00 0 ImPeMOis Area (s9 R) 68266 Tatal A Camp `C Volume Provided 208 2113 sorm 9800 L1(B) = 0 Tc (gu) a 0w 2.20 0 89 ouftw (as) 0.3 N(e) = o Tc(A+s) o 0 00 ams •c Factor 1,52 s~e~ = o O=c'ra= 4.83 C= = s Tc(tot.) = 500 Q(es.) a 0 00 $1 02 $3 04 OS o8 iT Tc (B) ~ 00 111E911sty a 318 Tfine Time hftnstty C dev V in V out Storage q e p (flC IIIC YWa ERR (min) (SW) \ MJhr ) (~1 (C+ R) f~ R1 R~ ERR \°1*~/ {A*C~ ~ w "_w~! V ~ ERR ° ~ ~ ~ ~ TC (tabq = Tc (ove~d) t To (gutter) Tc(gu) ~ ERlt 5.00 900 00 318 4 89 1840 9000 1850 Tc (arerland) - q'(L10N!S"0 5)A0 6) Q(esy = ERR a=OtS 5 300 318 4 83 1840 90 1850 U= Length ot Ovetland Fiaw Holding a 0 00 10 600 2.24 340 2366 180 2308 N a Mdlon fazor oi ovwland flow ( 4 tor average gress coveo 1S 900 177 2 69 2692 270 2422 S a everegesbpe oi overland flow 20 1200 145 2.10 2865 360 2505 Tc (gutkr) ° LengW (R)Nelodly (R.Isec )180 25 1500 1.21 1.84 2942 450 2482 8 a 8obm wldtli of guaer or diEeh • 30 1800 104 158 3002 540 2462 Z1 a f mmse of aass Slopa one cf dibch 35 2100 0 81 1.38 3041 es0 2411 Z2 D(nverss of cmss slope Mro of dkh 40 24W 0 82 1.24 3114 7Z0 2394 d n depth of Aow fn guiter (esdmaEs, check esthnate wbh Flo" 45 2700 0 74 112 3147 810 3337 Area = d"8+d"212'(L1+Z2) • 50 3000 088 10.1 3201 900 2301 Welt9dpa14rtet8r aB'd+(1Is111(61Qi(1R1))t1PSln(SbI(122))) 56 3300 0 84 0 87 3304 990 2314 Hydmullc Radlus= R= AmaIWe1Ced PedmeEer ~ ~ 061 0.93 3427 1060 2347 Veloefty a I AMII*R,% 6671e.5 65 3901D 0 60 0.81 3844 1170 2474 Fiaw = Velo=tty'Ama 70 4200 0 58 0 88 3787 1260 2527 n- 0 016 for asphalt 75 45W O.SB O.SS 3911 1350 2561 S aWngftudinaI SIOR9 0j 8{IQ81 80 4OW Qm 080 3943 1440 2503 ss 51oo 052 079 4105 1530 2575 90 5400 0.50 0 78 4115 1620 2555 95 5700 0 48 0 74 4315 1710 265 100 6OW 048 0 13 4445 1800 2845 zzCzCzz2z9CzCtC1C==~-~ zccccccz~_ ~ DRAINAGE POND CALCULATIONS Required gmssy swale pond storegevolume = Impervious Area x.3 inJ 12 (nJR = 2844 cu fL ptovided 2713 cu fL No Good DRYWELL REQUIREMENTS -10 YEAR DESIGtd STCRM Maximum shaiago tequired by Bawsbing = 2845 au R pravlded 3800 w R OKI NUmberend type of OtyWeft Reqtt(red a 1 81rg1e 0 DOUble l • ~ _ - I SWALE CAPACITIES FOAMULA: S~.FT. x 0.5 ~ CU.FT. CAPACITY LENGTH x WIOTH x 0.5 ~ CAPICITY 10 FT. N 10 FT. I ~ 50 CU.FT.~ ~ 10_FT. N 12 FT. ~ 60 CU.FT. 10 FT. ~14 FT. ~ 70 CU.FT. lO, FT. ~16 FT. N a 80 CU.FT. ~ 10 FT. I` 18 FT. I ~ 90 CU. FT . 10 FT. N 20 FT. a_ 100 CU.FT. M # 20 FT. ~ 22 FT. N a 220 CU.FT. 20 FT. ~ 24 FT. N ~ 240 CU.FT. 20 FT. ~ 26 FT._N ~ 260 CU.FT. 20 FT. I 28 FT. 280 CU.FT. 20 F7. ~ 30 FT. 300 CU.FT._ 30 FT. N 32 FT. N Q 480 CU.FT. 30 FT. N 34 FT. N ~ 510, CU.FT. 30 FT. 36 FT, a 540 CU.FT. 30 FT. 38 FT. ~ 570 CU.FT. 30 FT. ~ 44 FT. N m 600 CU.FT.' ~ M ! 40 ' FT , I 42 FT. I a 840 CU. FT . 40 FT. I aa FT. N a 880 CU.FT. 40 ' FT. ~ 46 ,FT . 920 CU. FT . ~ 40'FT. I 48 FT. a 960 CU.FT. 40 1FT . I 50 FT. ~ 1000 CU. FT J , . - - 1 JORAWN 8Y: OATE SOS S(~AL~E OFFICE OF I I- f I 03Ii2 87 I I ~ ~ DESIGNED 8Y: `HORIZONTAL ' SPOKANE COUNTYI 8Y~/,~7VEATICAI, SPOKANJ NFERSOr CHECKEO AT 8Y CKO PP REVTSION I NONE 6-3600 ~ . ~ j _ f 5 1 ~ , CALCL.ATIONS FOR YOUR SI'E i. BUILOING,SIZE - LENGTH W=OTH__,,,.,,.. n ..,,..,.,,SQ.F"f. 2. IMPEAVIOUS AREA #i - 1.ENGTH.,.,,.,.._ WIDTH_,,..,.,,_ Q_,,.._,,,,SG:FT. 3. IMPERVIOUS AREA #2 - LENGTH WIDTH = SG. FT . 4. IMPERVIOUS AAEA 03 - LENGTH_.,,...... WIOTH_,..,..,,_ m _,.,..,.,,SD.FT. 5. IMPEAYi OUS AREA #a - LENGTH wI OTH ° . . . . . SG . FT. 6. IMPEAVIOUS AREA #5 - LENG7H_,,:,,,_,_ WIOTH__, a _,,,,,.,,,SO.FT. ' I TOTAL SO. FT. , I cs x 0.5 m = 12 ~ CU. FT . YOU CAN NOW CALCULATE THE AAEA OF THE BOTTOM OF ~ THE °208° SWALE. YOU MAY USE THE CHART'ON THE LEFT SIOE OF THIS SHEET 70 HELP YOU. fAOM THE CHART THE SIZE OF THE SWAC.E I INTEND TO USE IS: FT, x FT. WHICH = CUBIC FEET CAPCITY NGINEER APPROVEO: DRAINAGE CaL'CULATI'ONS SHEET. OU~Y ENGINEER 2 OF 2 T. ' ~ LANO DEVELOPMENT ` OATE: L _ ~ , _ ~ .i l 1 1 Sl'AEET ,x 20• ~ 50• { 200 x i00.5 100.0 X ' OAIVEMIAY N 100.5 99.4 ~X lO~O~. 0 99.5 x/ , , ~ PAAKING STALLS 99 3 99.3 x- x Joo.s 100.0 - , ~ - ~ - - x~ u't J-2 OOWNSPOUT f 99:5 ~ I,Mwmo" x~ aU ° :o Ha NEW BUIL DING o o~us ar- o ~ N ° FINISHED ELEVATION ~ 100 °ml" p _ cc V' ~X X 99.3 99.3 X 60' 99.5 OOWNSPOUT UNDEVELOPEOAAEA ~ , sso• IMPEAVIOUS 2. ppIVING SURFACES (GRAVEL OR PAYED) SUARE ~ 3. SIOEWALKS _ 4. OTHEA CONCRETE. PAVEDOR COMPACTED SURFACES I ~ ~ ' ~ OAAMN BY: OA7E 50S 03/i2 87 SCALE OFFICE 0 OESIGNEO BY: HoasZOMat. SPOKANE COU'NT ' BM 03/ iV @J NONE 4 I I I ~CHECKEO 8Y: VERTZCAL N. 8li JEFFER~ SPQKANE. WA. {OATEIBACKO 1aPPR ~ AEViSiQN NONE 456-360C ~ , DRATNAGE CALCULATIC"S , . ~ . 1. DRIVEWAY - 90x23=2070 SG. F7. . 2. PARKING STALLS - 20x60=1200 S0. FT. . 3. NEW BUILDING - 30x60mi800 SQ. FT. *TOTAL IMPEAVIOUS SURF'ACE a 5070 SO. FT . O. HON MANY CUBIC FEE7 OF WATEA wILL 8E t3ENERATEO 8Y IMPERYIOUS SUAFACE AREA? A. USE THIS FORMULA: IMPEAVIOUS SURFACE AAEA x 0.5 12 E.XAMPI.E: *(5070 SO. FT . x 0. 5n 2535) 2535 a 213 CU. FT. 12 IMPEAVIOUS SURFACE AAEA WILL GENERATE 21i CU. FT. OF wATEA 0. HOW 1.ARGE SHOULO I MAKE THE DISPOSAL SWALE? A. USE THIS FORMUI.A: SWALE DEPTH x SWALE S0. F'f. a CU. FT. vOLUME OF SWALE t- EXAMPLE: 0.5 x LENGTH x wiOTH OF SWALE a CU. FT, vOLUME OF SWALE W 0.5 x!5 FT, x 30 FT. a 225 CU. FT. VOLUME OF SWALE W m 'NOTE ALL SwALES AAE TO 8E 6 iN. OEEP TH1s EoUaLS~ 0.5 FT. Yt3U WILL HAVE TO DESIGN LENGTH & WIOTH. \ tSEE BACK OF PAGE1 ~ THE CALCULATEO SWALE VOLUME IS 225 CU. f'7.. THE IMPERVIOUS SUAFACE AREA WILL GENEAATE 211 CU. FT.. IN THIS CASE YOU SHOULO SHOW A 25 FT. x 30 FT. SWALE 80TTOM. 20 FT. - r GAATE 4 L ~ m /0' DAYWELL co / 15 FT. ~ 16" DETAIL A i. SPOKANE COUNTY TYPE 'A' OAYWELL M1ILL ACCOMAOATE 5000 SG. FT. OF AAEA. 2. SPOKANE COUNTY TYPE 'B' ORYWEi.L WI1.L ACCOMADATE 55000 SO FT. OF AREA. 3. YOU MUST USE SPOKANE COUNTY STANDAAO TYPE 3 GAATE WITH THE A80VE LISTED ORYWELLS. t YOU MaY OEVELOP DRAiNAGE SwaLES FOR EACH INDiViDUAL AAEa) (OvER) , . -T - SHEET ENGINEER APPROVED: DAaINAGE CALCULATIONS 1 2 sT. COUNTY ENGINEER LAND DEVELOPMENT °F '60 oaTE: - - - - - - - - ~ o . _ _ ENGINEERING ID:206-343-9537 JUL 14'94 8:35 No.003 P.06 ~ • ` ~ ~ ~ • _ t • q:7 • ~~•~•f •+~,~1 ~a I..S~ 1 j', ~ ~ `~~V V'~ ~ i ~ ~ ~w ' r . ~ ~ t • ~ ' el~~~l`yy~T ~~~1~ly~ Y1l~.y'i ti~~~j~~'j 't~~, ~ ~ ~ ~ ~'.f + ~ • ' ~ ~ , 1 , ~ t 1 P ~ + ~ ~ • l i ~ ! Ji,i~ ~ • + ~ '0 ~ , ~ I ; • ~ , ~ ~ ~ ~ .~~,..~1~ 7 Il/f~j~~t~ #W. t1 . ~ ~ • . . , j , . ~ . . ti . ~ ~ ~ . . ~ ~ „ ~ ~ . ~ ~ $ . . ~ . . ~ i ~ , • ~ ' • • ~ ~ ~ ~ ~ • ~ ' • , ~ / t~ ~ t ~ •1 r ~ 1 ~ ~ ~ ~ ` ~ r ♦ ' • • r• r 3 , \'t~ ~ ~ • , i • ~ ~ ~ ~ t ~ ~ ~ y - 1' ~ ~ 1t» , ~ r . • ~ ~ r ~ • a a • C a., ~ ~ • , ~ t • • ~ t f ti 1 • ~ + 1 ~ • ~ . . ~ ~ • ~ , f < < ~ • 1~~'r ; ~ry~ • ~ • ~ ~ ~ r ~ • i ~ ~ F ~ ~ / ♦ S1 ~ ~ • ; ~ ~ • ~ 7 ~ ~ • ~ • ~ i ~ • . . , f ' ~ • . 1 ~ ~ . ' ~ dolp POP ~ 0 i ~d : ~ ~~r l - - - - ° ♦ r ~ i _ - _ ~ N~ ~ ♦ ' ~ ~ ~ ~ ~ . . 0 ~ • ~ td W J V ` W > Z t7 ~ fl • O ~ ~ • ~ i~ H F aw UPS Pro3ect - Design Vehicle 5 L INTOt AV r qt o S ~ 7 ~ , ~ ~ !oa 84 + Q ' ~ iv ~ _ - • 'f f . ~ 0 ~ • •Q ' r O p ~vMA~ ~ ~o~ ~ . , ~i .C1 . ~ • ~a9.:7 ~ O ~P ~ 8.~~ .T ' ` ~ + a ;S 1► Q►ol t M ~ _ - ~ r ~ • ~ ~v~p► > t ~ ~ r v 8 J ~ • ~ •J O ~ i ar [-75 V r ~ AN~ ''~''f ~ ~ ~~i ~ • ..'"'.2)LOJ ~ ~a4• O l 68 -84 ' . \Z6T oe , 14 a ~`j - ~ y ~ 590. 06 . ~r • a s ~ ~ ~•i~ ~ 2j ' , ~ ta I I ZS ~ 07 d .a • c DESmET Q►~ ' l 1*2 dp ~ ID s~ ss se6 Zz ~ T R C~ • ` ' ~ , • ~ ~ , ~ ~•K' + ~c { 49 ' ^ DA ` ~ - - ~ 1 ~O O - - ~ ~I 1 ► ' ~ ~ ~ ` s~ ~ ~j ~9 • ~ ~ ~ t do~ b ~ - - r~.: ~ • • ~ c Ze~,~ ~•~a 0~ P~ - ' ~ , ~ b•y 0 c ~ ~ ~ o ~ / 7 o~ ~ ~ 6 - 5 z ~ . , . - - - _ - ' ~-L ~ ~ _ ' I ~ I • 1;~ a a UNITED PARCEL- SERVICE • SPOKANE CEiVTER, WASH TUNNEL ADDITION, GlVIL ENGINEERING CALCULATIONS SUBMITTAL O f~ Y i ► Vo.~o 24396~ 19'P~ G~ u,~aNAL h ~ EXPIRES 21151P GFF1GlAL PU9LIC OOCUMENT 8y TRA SPOKANE COUNTY ENGINEEA'S OFFICE ~ Engineer John J Marbn, P.E OR; Date June 30,1994 PROJECTi N' SUBMITTAI. # RFTURN 1'0 COUNTY ENGINEER 1 . , ~ Drainaqe Calculations Narrative United Parcel Serorce (UPS) proposes to construct a wash tunnel facility for the washing of package cars and trucks at their facility on Bradfey Road in Spokane Courrty The facility will consist of a wash tunnel, 22' mnde by 152' long, and an adjommg equipment shed, 13' wnde by 105' long The buiidings will be roofed vinth asphalt roofing matenals Asphalt concrete pavement mnll be constructed around the facility for the circulabon of vehicles Total impervious surtace area for the roofs and pavement is 32,640 square feet Approximately 14,000 squar+e feet of the proposed wash tunnel site is currentiy paved The passenger car parlung displaced by the wash tunnel Hnll be replaced by expandmg the exisbng car parlung area 20 feet to the north In addition a truck and trailer storage area wdl be paved in concert mnth the wash tunnel project These finro parlung areas mnll result m 71,250 square feet of new impervious surEace The UPS sde is withm the aquifer sensibve area of Spokane County The site is underlain by medium dense to very dense alluvial sands and gravels Stormwater runoff on the devetoped porbon is directed to catch basms and discharged to drywelis As part of the wash tunnel improvements, UPS proposes to collect the stortnwater from the buildmg roofs and pavement areas and provide treatment and infiltration through the employment of grassed percolation areas (208 swales) Type B drywells will be installed to handle overflows The stormwater system has been designed in accordance wnth the "Guidelines for Stortnwater Management" (GSWM) and drainage calculabon sheets of the Spokane County EnAmeers Office Project plan reference Sheets G1 , G2, and C-3 Area 1- Wash Tunnef and Adjacent Pavement Runoff Treatment Caiculabons. General design equation for 206 tneatment swales Swale depth x swale area =(impervious surface area x 0 5) / 12 Impervious surface area =(120' x 272') - 3,900 sf (area that will conbnue to drain to the south to existing drywelis) = 28,740 sf Slnrale depth = 0 5 ft (per County dramage calculation sheets) Ubiizing the general design equation F?F(%*FIVED 0 5 ft x swale area -(28,740 sf x 0 5) / 12 Swale area = 2,395 sf .1UL 1 9 ~ 1994 I SPOKAWE WUl►tY LYGINEER ~ 1 Swate Design- Select 95 ft. for a swale length to confomn to sde layout requirements 2,395 sf / 95 ft= 25 ft. (required swale mdth) Prowde a 208 swale v+nth bottom dimensions of 25 ft. x 95 ft and a depth of 0.5 ft. to the grate elevation of an overfiow drywell Swale will be planted vwth a°dry grass seed mV per County specifications Drywell Calculabons• Runoff flow calculabons per the rabonal method Q= CIA Time of Concentration calculabons Time for overland flow over paved surface from farthest point to 208 swale 2 fps for 270' = 135 seconds = 2 minutes Time to fill 208 swale area to 0 5 ft depth (overflow height of drywell) Volume of 208 swale 25' x 95' x 0 5' = 1,188 cf Required rainfafi to produce 1,186 cf hrom the impervious area• 28,740 sf x depth =1,168 cf, depth = 0 041' = 0 50" (of rainfall) Design stomn rainfall intensity = 3 2 inches/hour (per the Spokane intensity/durabon curve for a ten year stomn at a bme of concentrahon of 2 mmutes) Interpolate fime required for 0 50 mches of rain to fall as follows 0 50" / 3 2 inches/hr = 016 hours = 9 mmutes Total time of concentration = time for overland flow plus time to fill 208 swale Time of concenbation = 2 minutes + 9 minutes =11 mmutes Employing the rational formula Q= CIA C = 0 9 (paved areas) I= 2 1 mches/hour (per Spokane mtensity/duration cun►e for a ten year storm with a fime of concentrabon of 11 mmutes) A= 28,740 sf = 0 66 ac.res Q=0.9x21x066=125c#s Drywell, Type B capacity =1 cfs (per paragraph 4-4.1 of GSWM) Two drywells (type B) will be reqwred to handle the calculated overflow peak rate of 1 25 cfs Area 2- Car and Truc~clTrailer Parkmq Runoff Tneatment Calculations. General design equaUon for 208 treatment swales. _ Swale depth x swale area =(impervious surface anea x 0 5) / 12 Impervious surface area =(150' x 475') = 71,250 sf Swale depth = 0 5 ft(per County drainage calculaban sheets) 3 0 Ublizmg the generai design equation• 05ft xswalearea=(71~250sfx05)/12 Swale area = 5,938 sf Swale Design. Select 455 ft for a swale length to conform to sde layout requirements 5,938 sf / 455 ft=13 ft. (required swale Hndth) = say 15 ft. for constructabildyr Provide a 208 swale with bottom dimensions of 15 ft x 455 ft and a depth of 0.5 ft to the grate elevabon of an overflow drywell. Swale will be planted with a"dry grass seed mve per County specAcabons Onrwefl Caiculabons Runoff flow calculabons per the rational method• Q= CIA Time of Concentrabon calculations Time for overland flow over paved surface from farthest pomt to 208 swale. 2 fps for 130' = 65 seconds = 1 minutes Time to fiII 208 swale area to 0.5 ft depth (overflow height of drywefl) Volume of 208 swale: 15' x 455' x 0.5' = 39413 cf Required rainfall to produce 3,413 cf from the impervious area- 71,250 sf x depth = 3,413 cf, depth = 0.048' = 0 58" (of rainfall) Design stonn ramfall intensrty = 3 2 mches/hour (per the Spokane intensity/durabon cUnse for a ten year stortn at a time of concentraUon of 1 minutes) Interpolate bme required for 0 58 inches of rain to fall as follows 0.58" / 3.2 mches/hr = 018 hours =11 mmutes Total time of concentration =bme for overiand flow plus time to fill 208 swale Time of concentration = 1 minutes + 11 minutes =12 minutes Employmg the rabonal formula Q= CIA C = 0 9 (paved areas) I= 2 0 incheslhour (per Spokane intensity/duration curve for a ten year storm with a bme of concentrat►on of 12 mmutes) A= 71,250 sf = 1.64 acres 0 =09x2.0 x1.64=285cfs Dryweil, Type 8 capacdy = 1 cfs (per paragraph 4-41 of GSWM) Three drywefis (type B) vmll be required to handle the calculated overtiow peak rate of 2 95 cfs 4 . ' ~ ~.~e~► ~ ~ x'~_7~~ ~ i r + 1 S I ' `~~J,y i~'+~ft~f+~ ~ ~ x ' LS i~r ~ ~ ~ • ~ 1 ) t 2~~ 'i t t ~ ~ '~y~s ~ ~ ~ E' ~ 3 +r r . . . ~ ; ~ ~1 ~ + •,,••N , . • ti ~ ' << f ~ P r ~ ~ + ' • ~ ~ ~i ~ ~ ~ ~ Z ~ ~ ~ t t S ~ • r ~ ~ , ~ ♦ t . 1 t . ~ s ~ Jb , • • 1 ~ ~ ~ • Y j ~ • ~ • ~ ~ ~ ••L t ' ~ ~ • ~ r » ...1 •S ► 1 • ~ ~ . ; ~ • ~ ► ~ ~ ~ ` . t~ ~ L ~ ~ ~ ~ ~ ~ ~ ~ ~ r ~ • _ ~ U v 1 ~ . 1 ti ~1 =1 ~ t~~r; ~ i k f 4 ~ r y = ~ ~ 1 ~ a~ ~ ~ ~ ♦ ~ • { ~~1 • . 7• ~ w~ a ~ ~ i a~~ r11 ` • ♦ , , ~ • ~ , l ~ , f ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ♦ ~ ~ • t ( t ~ ~ ~ ~ • e • t r ~ ~ f { ~ ♦ . i 1 . ` ~ . i ~ \ 1 s ~ f ♦ r` j ~ ~ 4f 1/ - ~ ~ _ ~ _T~ I WOW, # + ~ ~ I ~ Y'I• Q• ~o ~ ~ r .y+ ~ ♦ +p ~ R~ • a ` ~ • . ~ ♦ ~ 1~ ,J ~',~z±„ ~ ~ • ~ ~ ~ M ' W J v iY ~ Z Ci 'a W O~ ~ cr~ r b ~ 11 _ UPS gro3 •ect - 13esi9n Vehicle - - - ~,i I s 1 ~ ~ ~ I ~ru"` i ~ rL - + _ ~ _ 'r$ - ~ - ~+~ir.~w- ~ - _ - ' ~ ~ - -e~~~ - ~'~s._ ' ' ` - v , _ ; ~ .~'r~ ' a - ~L - ~ _ i - - r_fi , • _ . ~t , ' . -!~`,~~t..; ~ ~ s: ~ i~' - • + ~ { * ~ f-' ' - ~ E i~ ! i~ . 9 ~ ~ y ~ ~ - - ' _ ~`~r - ~