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27617 PE-1731 VALLEYVIEW SEP-20-94 TUE 11.05 J. PAUL RAMER & ASSDC, FAk HQ, 5094675252 P,02 euR3 CRLC vL4 7~Do%)-5 OPPICE CA,LCUIATICl+tB ANp DESIGW iz #3 ts 06 0 re ~ 09 MI1tDNK i+lAXIKM ; E.P. PI6t. tRfl![ pIST. CSlRa IS[.BY. CUAB MAV. SLI.ECTED S GLAD8 9TA%. ELEV. EL$V. ~ to I.P. P8OM E.F. (4.5z SIAPE (21 SIAPS ELBV. PPa;:►LF- + noK i - i i iROM I.P. ~ 10f 00 Izaall tI zo! s,a' I m,~ I I ~ Iv+sa jZVZ.-7.8c,1a0z7s, } S. Z' . . 10,3' a02 -1 . 43 ~ . ;kaA-7. 69 I dl t 00 IyOV.88 ze+2-74.rr 10.4' P021. SR 0; 7.~'"71 I . ~ p n. 3 7-70 11+ 60 1 ,I f o.3z~o ~ 1z+00 Izozz.s-o8 2 0.1-7, go~' ~ 20a$.1,~'~ 12,02A.0 1 I f # ~ ~ 1 0. 12.4-50 ro~' 7 o A 0a'-a .40 ~cc~ngk rpj ~ .9o% ~ I3t00 Zvu-I4kvz8.s4f 4•3, p8, 51 ►f A av 19 .20.ZS. (a`~'I I I ~ ~ I , i 13+-50 .1 zorr •z"~avz9 aLo -q~ 3 ` ~ 9•~' ~ 2 0 7-S.q`1 ~ .2 Da`I.za" ~0R 9. i5~ I,9 z J4+00 tpz4-q9 I ~?mq+1 9•T ;019 u aoa 0,15 J4 tsa 1~~~~~Zc,?-q.-7 11 a o3 oi-(0a,L/d 10a4,91 SEP-20-94 TUE 11:05 J. PAUL RAMEA & ASSOC, FAH N4, 5094675262 P.O1 rOcLtA A4oREss: OFFICE LaCArED: P o aax 13779 H. to115 N€WPaar HuY. sPoKAE, va 93Z08 5POKANE, ua 99218 J. PAUt AAMER a ~~~OCIATES, I{1C. C 0 kSUL Tf% a Cjvtii EkG314 EEpS A L AN 1) iilRvlr(7A1 FAx CvvER SNEEr flATE: SE~T z~ . 1~~4 Ta: eoud-rr '061AI-er'p-S , ATTENTI0N: p)L-+- H15Mrr]+tJ6S C I TY I STATE; sPor-A'V6 , Wjq . • FAX LiL1MBCRu '3 i+ ~7418 raUMgER oF PAGEs, INcLva S r,G Tw rS cOvER SHEET : z FRoM: 6►~66 tAtLcF0- FAx HuMaER: (509) 467-5262 ,M~S~age: jQF UrS~17~ LuRr3 GA Gc5 . , 609E ►5 'Wow Ral9D PRoFII-6 GQRD 6 , figo NoT CR6 5 S 54cr~r1 GRAi~~ , , T Et,E V traw' rNCGuD6 D~2QA 1-,J TYP6 B , GuRB • " PTease CDn'&aCC at C5Q(3) 461-5261, shauld $ny DrOblsms accur Mith Cran3mi3310n oF f'Acs1m11e. ~ ~ lti ~uRB CA~cvl~ ra~Al~ ~z~~ ix~an~urrvr~ ~ Q~~i~a c+u.cur.~trio~s ~~szcx~ ~ ~ f~ r~ ~a ~s Kxx~s~m rtax~r~s ~ p r SZ • ~R~ r ~i.'$~ r C~~ ~.~y • ~ C~Y}~ SrA. ELEY. ~L$V. ~ ta S.F. P~At E.P. «.~x SLdP~ (2I SIJ3~8 EI.BV. ' !R~!! a. ~ROIi 8. P. ~ ` 4.~~a+~ ~ ~ ?~~r.3~ ~.7.~`~~ ~ ~ ~o~ ~a ~zoz~~r~l 4a a.~' ~ ~z o` ~ z~z~.37 ~~,~~.,_,$r .7 i 1 ~ ~~-.x~~ ~ ~ ~ - ~,~-y~ ~ 1 ~ ta t s~ {z~~.~.se~ s~z~ s, g. z' ~ rr 8' ~~o,~a. ~S ~~v~~. ~i 7~ , ~ ~ ~~~~d ~ ~t+ a~ $s ~z~z~ ~ ~.sf ~ tr.~' ~ ~z~ ~~i I ~z.~.~3 ~ ~0~~~~7 ~ ~ ~ ~ ~e I~.~~~ I 1 ~ ~ ~r~ s~ a~~•oz~ z~~ sz~ . s • ~ ~r s ' ~ za so ~ ~ z,~, ~ ~r~~7.~3 ~ 3~ ~ ~ ~a ~ I ~,i~~-~• ~ ~ ~ rz+~a ~~azs.os~zpa-r,47~ g-~' i a~. ~ zaz~ ~5 ZQ~s.~4 ~~.~z~i.ug 30 °7e I I 1.~~~ I--~ ~ # I ~ ~ ~~~-Sa ~~z~ 3 ~ ~~za-+s ~ ~v 4' ~ 9- ~ z~zS.~S ~ zo~~-~F~ ~ CF~ L ►~1 I la.~~~~-~• R l f I ~ l3+ao ~Za~8~4~gozB.~ ~ lo ~ ~ ~ ~o~g,~S ~ Z~ZB.$Z ~ S ~.9a`~~-~ ~ ~ ~ ,~~~8. ~9 ~ 3. ~4 90 s3+5v z~~~►•a~~z.~~4 cc~ ~t• 3 ~ ~ ra~ ~ ° ~ zoz~,o~. ~ ~oz9~ Z'~ ao~9 r~ ~ "70 ( I ~ ~ ~ ~ r~~vo 4~~q ~9 I ~z~.~t~ ~ rc~ 3 " z~z~.~~ ~ z~ I ~Q~~. ~ r l ~a I ~ r ~ ~ I - ~ ~ {4~rs~ I~~~;~. ~~Q~,~ 7~ ! ~pz~.73 I ~~~.aa ~ ~ 4 ~ . ~ ~ ~~tov . . ~ ~ ~ I ~ ~ I 4 ~ ~ ~ ~ ~ f ~ ~ # ~ I _ I I ~ i ~ i ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ . I l ~ ~ ~ ~ I I ~ I i ~ ~ ~ ~ ~ . ~ ~ ~ ! I . ~ I ~ ~ I . ~ ~ . ~ I ~ ~ ~ ~ ~ ~ .I ~ I ~ ~ i ~ , . S P C7 ~ ~ 1~4 E~ c> L7 1~F ~ y - , ~ _ - ~ T'[.ANNRNC DEi'e4RTfvtENT 4VALLIS D. HCJ13BAR[7. DIRECTQR ~ ~ i ~~~~IVi MEMCDRANDrUM JUN 0 219~4 Eum. TC]: fi7ivisiora of Engineering and Rva.ds Divisivn of CJdII ities Da►risnon of Building5 _ Spokaae Gvunty Health District F's.re Protectivn District Nv. 1 Cenuai Va11ey School Uistrict Vera Water and Pawer FRQM: Mike Nichvlscrn, Planner I DATE: 7une 2, 1994 SL]BJECT: Rev+iew vfFina,l Plat PE-1731-93 VALLEY VTEW ESTATES Enclvsed find cvpies of the alove referenced final plat. Flease review and forward any cornrnents by June 16,1994. Tf yvu have any quesrians you may contact Mike Nicholson at 456-2245. Th y~ ~ ~ sm Enclasure c: Shamus Reilly, 15815 Easx Valleywa}r, lreradale, WA 99037 9578 WEST 10Z6BJ2C"lAL7WAY AVFNUE • SnOxAtvE, VfTa,sH[NCTON99260-0240 •[5p9] 456-2205 J. Paul Ramer &►o►ssaciates, MnC, ~LE~~ E F~ C3 F~ F~A N S M I TTA L Cansulting Civil Englneers 8 Land S~rrveyors N. 10115 Newport Highway MailingAddress: P.O. Box 18779 oaTE kPT Iaa nro ~331~ Spakane, Washingtan 992~i8-0179 S Phnne [509} 467-5261 ■ FAX 467-5262 qrreNTioN 81 Li- ~A) 6 s TO SPdK,qPi6 CvUpJTy &NGI pj+Eg RS RE VAu..r-Y VIEW E57ATE5 GJ la Z,~,P,0 R D rti/A 1' I}VA 94 GENTLEMEN: WE ARE SENDING YOU ❑ A4tached ❑ Shop drawings ❑ Prints X Plans C] 5amples ❑ Speeifications ❑Copy of Ietter ❑ Change arder 0 CpFIES I DAi'E I RAGES I DESCRIPTIOH ~ I7IrtlR4 ~ z I 5.Cw,99 PLAtJ I I I I I I I I I I I I I I I I I I THESE ARE TRFIMSMITTED as checked beiow. 0 Far appro►ral N For yaur use ~ As requested ❑ For review and comment ❑ REMARKS t- . F ~~~~ivrI~ ~tf- 1 9 x:jA ~ Cv~~F [:rF~ir,;rv i.ur,u~~~ CC]PY `~~J S9GNEa: ff snclasares era not as nvtad, klndly Rutlly us e[ ance ~ . R: aFFICE aF THE COUNTY ENGINEER SPi]KANE CU[]NTY, WASHINGTON TO: Teff Fvrrey, Department of Suildings FRQM: Bi11 Hemmings DA`Y`EE: Qctaber 19, 1994 SUBdECT: B.C.C. resalution # 91-08$2 Implementation Attached are the individual lvt plans far each lot cantaining a swale in VALLEY VIEW EST, plat# P 1731. Flease give the apprapriate lot plan to the individuaGl applying fva' a building permit on Cbe lat, sa they can draw tbeir hause and approacb ta scale on the Iot. We will need this plan, and the cflrrespanding $I000.{}0 cash surety, in tbe fvrm of cash, letter Qf credit, or savings assignment, before we can issue the approacla permit. Also attacbed are the letter af credit and savings assignment forms. Tf you desire, we can meet tv further discuss this new pracess. ky'1~lassign.208 , ~ • "SAMPLE LETTER [)F CREDTT'j " (iJSE BANK LETTERHEAII) „ (BANK RTAME ADDRESS ZZP CODE PHC)NE # AND O"THER INFORNTATIC?N) IRREVaCABLE LETTER C3F CREL7TT AMouNr: $ 1.000.00 No. HENBFiCIJhRY: SI'OKANE COUN1'Y ENGINEERS 1026 W BROADWAY 5PC1K.ANE, WA 99260-0170 SUB.lECT: LOT BLOC:K VALLEY VTEW E5T (Flat) PL.AT # F 1731. {17evelopment} Cienrlemen: We hereby auYhorize our irrevacable Letker of Credit in your favar, and authcrrize yau t4 d'raw vn the (bank), a draft up to one thousand (T]ollars) ($1,000.04), for the account of (devekoper). The draft, drawn under this Letter of Credit, oovers the assurance of campletien of i.nscallatian ❑f storm drainage, drainage swales, sod and flther wvrk as is incidental and related thereCO in accordance with t'he drawings anei specificaticrus as subnutted to and apgroved by ihe 5pokane County Engineer's C]ffice an (date), and is ta be ar,e.ampaFiied by the fsallowing dncuunents: written request by Spakane Cr99unty Engiiieer's Office tv (bank)> at the abaVe addres,s indicating nan-r.ornpletion of all or aay of the abave impaovements and that amount of money required ta comglete such unpanvements. We herelay agrae with the drawer, endorser and bvna fide holder of ti►is draft, negetiated under amd in cocnpliance with the terms of this credit, that said draft sha11 be duly honored upon presenaaaion at the (bank), at any time before eonipletian of the above-described imgrvvements or performance, in which event written notice st►all be giden by Spokane Counly to the bank. (deveIvper) shall be responsi'ble for atry cvst iucurred by the couuty itz excess o€ the amount of security. L7rafts, drawn under tbis Letter of Credit, shall bear on their face the rvvrds I]raran under (bank) (bank address) Credit No. l]ated Bank Name: Br- (autnorized stgnor) kv~assign.208 "AGREE1ViENT" In consideration of the issuance of a building permgt fQr Lot Block . VALLEI' VIEW EST (plat) plat # P 1731 (Developer) has deposited $1,000.00 with Spakane County as security fvr fiuH and faithful per£ormance by Developer respecting certain drainage facilities and sad im acccardance with the drawiugs and speci£ications as submitted to and approved by the Spokane Cvunty Eng%neers C7ffice an (date) 1'99 . Developer hereby a,grees that should such clrainage facilities and sod not be canstructed in accardance with the approved drawings within six months af vccupancy, Spvkaiae County may then use the securixy tv bring these facilities and sod inta canfQrmance therewith. Developer sball he respQnsib[e for any costs incurred by the caunty in exeess vf the amount af security. Spokane County agrees ta return tv Developer any unused funds upon satisfactoxy completion of these facilitres and sod. NAME & ADI7RESS TC] BE RE'F[JItNED TO: (Developer Signature) DA'TiE k~~assign.208 ,t + bSSIGN M E N T Far securit}+ purposes only, (developer) hereby assigns to SPQKANE COCTIVTY, a political subdivision of che State of Washingtmn, the fcallawing: Savings Certificate Nurnber in the face amvunt of $1.000.00 and $e1d in and b}+ Ban,k of , Branch _ (bank address) 'This assigrment is made as securit}+ fnr the fuli and faithful perfarmance try (developer) of certain drainage facilities and sad far LOT HLOCK . VALLEY VIEVN EST (I'lat) Flat # F 1731 in acwrdance with the drawings: and speci6catioas as subuutted to and appraVCd by the Spokane County Engineers,affice on (date) 199 . Any interest henefiis accruing under said savings certificaTe shall remain the property of (developer) 5aid savings certificate to be released ta _ (developer) anp other garty only with the priQr written consent and agreetnent af 5pokane Caunty. PROVIDED, F[JitTHER, the undersigned does hereby authorize _ (bank) ta pay over to Spokane Counry all ar a sufticienc poriion ❑f the inQnies in tha savings certificate reFerenced heraina'boue upon written dvcumentation heing receiVed frQm the Spokane C.ounty Engineer indicating that the purposes frar wfiich the savings certifica#e was assigned have not been fully and faithfully perfarmed ss required and a statement af that amauni of maney which the County Engineer as required and a statemenT af that amannt of maney wbich the C:ounty Engineer deems ne.cessary tca complete such abligatian. Upan receipt af such written documenxation, (developer) hereby auth❑rizes (banlc) ta ralease to 5gokana County that amount of money requested up tn the maucimum amaunt in the savings certificate. _ (developer) shall be responsible for any cc+sts incurred by the r.ounty excess of the amaunt af security. ' DATED this day af .199 9 ~r ~ F f • 1 1_oT 2 g L. 0cK nRA rn►a GF - - ~ EasFMFnrr ~ r2s. oa • ~ - TYPE @ ,pRYWELL YV/ rYPE 4 METAL FI, AME AND ~GRA 7'rE' ' ~ELE'V. 2026.39 4~lt o STA l+15, LFT 25' CURB DRfiP sr~a i# a5.s3 EL. z02s_ss Fc 11 Ls7- 1,4 T 3-d ° ~y m d20' 1 r co . '20$° 5WALE ` d ' 30• ~ EL, 2025.89 ~ B[lILL71NG SETBAClf i - LQ UTILITY E,4SEMENT ''o - ~ - ~ F2JTURE ACQUlSITlON ARE.4 - 95. 70' X 6' S113,EWALIf F► - a ~ , , • ~ VA LLEY + WAY M ov wAur,,~ ~ ~ ~~0030$87 ! ♦ ~s'9!V A L '6 ~E3(?1RES N[]V.19.law J. PAUL RAMER & ASSOC1ATE5. W. _ CN1 E~ AND LANQ SL1R'VE''rC7R5 N. 10115 I+EWFORT HINY., SPCKA?'-E, Vk45i-*4GRON 99208 (509) 467•5251 ; Dayg: OCTOBER JO_ 199st - i r•• - 30 ' L Q T J, BL (JGf~ t ~~le~t Na. 93310 f orawn: GsM - Chocked: sMw VALLEYYJE'W ESTA TES ~ . Fiebd aoak: Sht ~ (!F _ , , • ~.f 3 ~ ~ ~ 20• QRa rA+,aGE E.asEAtEMr Ra,an w,a r , 15-0 PorrD aa rrom BAHJ[ EL. $Op PtiIYD BGTTOM TJC 0.2' A11ED SJDE.~^ rrPe a MFraC FRAAfE d G44ATE ~ '2080 swatF ~ . b EtEV Z025.ss ~ s wa LE sECTr an► SCALE.!' = 5'-0" c7v ~ Syt . 003087 ~a,srlaati° AL ~ EJiPlRE$ NOv 19, 1994 ~ . J. PAU~ ~AME3[ {]c A.7SOL..~ATES. W. CIIL Q<,i4MZS AN] LAND '5URVE1CRS N. 10115 NEWPCR3 HWY., atCKAh*, V~~ 99208 (509) 467 Si61 OCTOBER 10, 1594 Pf~ L~~ NQ. scow a s sHOwrv LOT 1, BL OCK 1 ~ 93310 ; o~arrn: GsM sMH VALLEYVIEW E5TATES ~ FIMO e~o~: Sh# 2 o# 2 • ' 25' ! - ~ ~ W LOT 3 BLOCK I c~ ORA/NAGE r- ~ EASEMENT 126.00• ~CURB OROP ~ Z. I~ STA 2.25 EL. 2027.71 FL L AT 2'-10.. l8' ~ ~ "208" SWALE EL. 2027.21 O 4tii ~ h 00 ~ I 4r p ? Q co 1 J m I~ Z 30 " J I 1/0' ~ c; 1- - a ~m 126.00' N L Q T 25' BLOGK ~ je ~.A.0030887 4 ~ w \ s'ONAL e'1 EXPIRES NOV 19, 1994 ~ J. PAUL RAMER & ASSOCIATES. W. C1VL EWAI'EitS AND LAND SIJRVEIORS N. 10115 NEWPORT HWY., SPOKANE, W45FiINGR0N 99208 (509) 467-5261 ar: OCTOBER /0, 1994 I" = 30• L 0 T 2, BL OCK l Project No. 933/0 Onwn: GSM Qw"sd; SMH VALLEYVIEW ESTA TES F~a eook- ~ Sht ~ of 2 . [ i ~ . 3 ~ ~ fs ~ DIQ+1II1f11GE +6a{SEi1FA1lT 4r RDADWA _ t - fS' PeIYp 80TTOY ~ ~ Sop POAID BoTTOM ci . ~ /C ~ 0.s' ,:i--7Am 31Df3 F r. `Q6~ SWRLE ~q V ~ TYPI CAL SWALE W'IO DRYWELL No r rO scALE OVWAS~j~ ~A ~ AL13Q887 4 Ly~ , 'ONAI. TG1] ~ExPIREB NDV 19, 19,94 ~ J. PAUL RAJNER & ASSCCIATES. W. ~L a<44SM AND LAND SLRVE)CRS N. 10115 NEWPCRT N►vVY., SPCCAI*.Yw%*NGMN 49208 (509) A,67-526i cw,, acraeER oo, 1994 Prcect No. As srao wnr L a" T2,~3L aCK 1 ~ 933! ~ Drmm: G51N cnacksw SMH YA LLEY VIEW ES TA TES F*MSmk: 5ht 2 of 2 , ~ . L'07 4 25' BLOcK I f tAi 18. '~I ~ ~ 126.00' ~ cn ~ - - ~ I- 30' ~ - ~ U I L~4 LU ~ • ~1 ~ 4J 00 Q ~ ico :~208" SWe4LE f- i 73- - ---`EL. 2027.21 zo I• r4* t~ I izs. o o• i; ~ cu~e ~aRaP DRA flVA GE~ iN 5 TA 2+25 N EASEMENT EL. 2027.71 FL L I AT 2'-/o.. LOT BLOG K r 18' ~ `J WASg -ck: Z ~ ~ - 25' 0 0030987 'ONA L. SE7[FIRES NOV 19. 1994 ~ J. PAUL RAMER & ASSOCIATES, W. avIL 8%r~~ AND LAND suRVEKM , N. 10115 NEwPORT HwY., sPOcANE. V*6F*4GTC)N 9920e (509) a67-5261 DCT(3BER 10, 1994 Pro~.'ct No. , g~. = 30' L I~ T 3, 9L L')l:'f~'i 1 ~ 9.~.310 '.w~,: ~sM ~i Chm*eo: SMH ~+',4LLEY11lEH~ ~STA TES , FOW awk- Sht ~ vf 2 4 ~ a F ~ f 3 ~ a [JRAIlMRG6 EASEHFIVF liOAGWA 16' PU,hfD B07TtlY ~ SDo IPONII Oo T TOM /c ~ ax AND SJGf9 ~ VaS- SWAtE ~ 0 ~ TYP«AL SWALF W/O IJRYWELL Nt]T TO SCALE ~ Og wAS~r ~ ~0 00 ~s97 QrsrIleR~ ONA L ~ ExPFfiEB N[]V 19. 1994 ~ J. PAUL RA1vlER & ►4S5CKATES. W. CNL a<4-EE5 ANC LANO SURNFCRS N. 1101I5 NEWPORT HWY., SFCSANE. WeSH*4G!t7N 99*2Q8 (509) d67-5261 oCrcrBER 10, 1994 Project No. , scaw as sNOwrv L OT3, BL OCK 1 93310 ofmm: GsM „ cz,mckecr sMH VALLEYVIEW ESTATES Fwlbd Sht 2 af 2 _ ~ . 25' , . ' LOT 5 Is' i DRA/NAGE EASEMENT sm 126.00' ~ CURB DROP ~J "'~STA 3+85 ~ EL. 2029.05 FL ~ l A T 3'-9., L~- SWALE I /e' EL. 2028.55 UZI m W ~ tu Vf ~ O O ~ O H' W ~ O m Z ~ I Op ~ O ~ ;I ~ . QO ~I 30' I - 126.00' ~s• Lo,r 3 - - BLOC;K ~ - - 25 - Op WA/y~HG+ « 00308 ~ Qls TBA~~ ONAL E~G tl EXPIAE3 NOV 19, 1994 ~ [ . J. PAUL RAMER & ASSOCIATES. W. avL ErC4WRS nr+D u►ND suRVEYOfts N. 10115 NEWPORT HWY., SPOKANE, WASFiING10N 99208 (509) 467-5261 D.W. OCTOBER /O, 19940 • ' SCS". i" = 30• LOT 4, BLOCK l Project No. 93310 Drawn: GSM Ctwx*od: SMH VQLLEYY/EW ESTA TES FieM Book• Sllt ~ of 2 Y 3 ~ ~ 1 s ~ oRAdNAGE EASEMEIYT RaADWA' I$" PAHD 8D TTaif ~ 1NK EL. roo POwv ea TTaw o /C ~ag` AAil) 31+DE37 f r d "208' SWALE ~ 0 ` TrP«AL swALE wIo DRrWELL N47T TO SCALE Vy vV WASFje! ~AV~ P ~ 0[i30367 +H~, ~[7l5 T'sq~ ~SfoNAL B~ ~ ExPIRES NaV 19. 1994 J. PAUL RAhllER & ASSOCIATES. W. CvL E~~~ ANa LAW sLRv"D66 N. 10115 NEWPCR1" HW'Y.. SPCICAf%E, V4k9*4GK)N 99Zf7S (509) 467-5261 acroeER io, 1994 ~ro~e~t Na. as sNVwN LOT 4, BLOCfC 1 9,3310 ~GS,sMN VALLEY1I1EW ESTATE,~ ~ Fow emit: Sht 2 v# ; . . . . I _ 25' ~ I ~ LOT 6' ~ 126.00' 30 /o• I Z ~ CURB DROP LLJ STA 3.85 W ~ ~EL. 2029.05 FL Q Q I I AT 3'-9.. a ~ ~ Z ~I m 0 m "708" SWALE_ W EL. 2028.55 I • ~ Q . ~ v~ 126. 00' ~ (S) OT 4, DRAlNAGE ~ . ~ L EASEMENT gl.oCK r ~~OQ NASy~ ~l ~ 23' , N P 00308 G~ a ~ ~~OIsrEa~° Nn~, ~EXPIiiEB NOV 10. 1004 ~ J. PAUL RAMER & ASSOCIATES. W. QVL ENGNEfRS AND UND SUR1/E`+VttS N. 10115 NEWPORT HWY., SPOKAtE, W4,%*4G-a4 99208 (509) A67-5261 psW OeTOBER /0, 1994 scam. /11 = 30' LOT 5, BLOCK I Project No. 933/0 Dranm: LAC CtmLk6d• SMH VALLEYVIEW ESTA TES Field Book• Sllt ~ Of 2 t r f ~ t ~ le' nRAiNAsE EAsEmEh r RoADwA' ~ . - ' f3'PO1Vp OOT7Olf _ ~ t►rK Et. soo PvNa e0 TraAO ~ /C . aj' AAiG SIQE9 r' _ L Pa v ~ • ~ 0200 - swALE - ~ . Q ~ TYP1CAL SWALE WIO DRYWELL NOY TO SCALE ~ av WAS~f~ ~ D ~ w4V~c ~(71sTS~~ 'aN AL $1 EXR4RE3'N4V 19, 1944 ~ - J. PAL]L RAtvlER & ASSOCIATES. t<. CvI. R4CWH35 AW LAW sUtveX-'ts N. 10115 r"PCRr HwY., SPCcaNE. V*&*CRDf4 99208 (509) 4,67-5261 ocra~ER 10, 1994 Prclect Na. scubw a s sHo wrv LOT5, rBL C] CK 1 9331 0 ' Onmn' SMH Va LLEYVJEYV ESTATE.5' ~ Fsma &mk: Sht 2 at 2 , . ~ . ' ' CURB OROP TYPE A DRYWELL STA 1+16.18 ALKI W/ TYPE 4 METAL E A~ 6 FL A VE + + 1 FRAME AND GRA TE EL. 2030.96 ~ STa 1.04, RT 25 "208" SWALE ~EL. 2030.46 N , - ` o UT/L/TY EASEMENT i , ~ r ~ DRA/NAGE Ni 2' ~ EASEMENT L-- i ~ BUILDING SETBACK . . I ~ Y ~W I ,Q ~:WE - O cri ~Q LU cr) zo " Z O~Do J ~ j I~ m ~ 30' ~ i ~ ro• : r ( ~ ' 126.00, Z c ' Q L0T 7 ~ W BLOCK 25' 9`i ~ 0030887 Q ~w ~Q/3T8R~ J.~ ss'ONAL LF-XPIRES NOV 19. 1964 ' J. PAUL RAMER & ASSOCIATES. W. CIVL EWA4H6 ArO LAND SIJRVE1bR5 N. 10115 rEWPORT HWY., SPUKAPE, We►SHNC'TON 99208 (509) 467-5261 _ ar: oCTOBER !0. 1994 Project tvo. 933/0 I•• - 30 • , L 0 T 7, BL OCK I . °r""": GSM sMH VALLEYVIEW ESTA TES a~.~°' Sht ~ of 2 - y FiNd Book' ~ ~ y r - L~il ~ 4 ao,DRaIn►aae e,sseMENr ~RFCADwA!^ ~ IS• Porva sertoN J16- sDD P @G TTO]!1 B,AI4NC FLFV AllCII 3 TJC 0.20' T3PE 4 AtETiiL . FRAAfE 4 ORATI d;, ~ ~ ` . ~ ' 2'g8^ S4YAtE ~ q ELEv 2030.46 ~ - " .f ~ . ;.o ro.~, , - TYPE A I7RYlMaL TYPICAL SWALE $EC7`ION SCALE.• ~ op WwSlyt . •,Q 0030887 ~ ~tl 4b#5T~ 'QN A L ~ E]iPlRES NC]Y 18, 1994 J. PAUL RAMER & A.SSCKIATES. W. {1111. R<4*S6 AW LANO aLVEMM N. 10115 NEWP'CR'T FiWY., SPr(At+E,'r*&-*VGA0N 99Z48 (509) 467-5261 oew ncToaER 10, rssa Pr~ ect N~. As SHe W~► L~a r 7, BLv cK i i93310 ofew: GSnr vaLLFYvIEw EsrArFs chockw SMH F'seo aook: Sht 2 Df 2 25• f I ~-oT ~v 18` ~ PLOCK "208M SwALE aRa INAGE TYpE 8 DRYWELL EL• 2023•89 E'ASEMEAIT W/ T YPE 4 +ME TAL FRAME AAFD Gf?tl TE 20• 15I.20' ,ELEV. 2026.39 STA 1+15. RT 25° ~ ~a N i i ~ / • Z U ❑ ci C[1RB DROP srA 1t05.63 ~ EL. 2C726.89 FL ! A 7~ 3=0.. • 2a' • ~ Li3 9 30' • m l.~! 10' I ~ _ . BEJlL D ING SETBAGft • - . ~ . ~ 4` ~ ~ ~ ~ urrL i rr EAsEMEnrr P, izp _FuruRF AcOU►srr►oN aREa Z - - 115.5 7' - - -~-.~r' s' SIDEWAL!'t r , 0 4 ~ ti r t ~/A r y ^ Y 1~1 LLE~Fy WA 1 J D 0030807 ~rsTaa~ ~'ahAL E~ 1EXPIAIEs Nov 19, 1994 ~ J. PAUL RAMER & ASSOClATES. W. (3YL EW4NEERS At+D LANE7 SLRVE1bRS N. 10115 h1EWPGRT NWY., SP01CAr%E, V*SH94GRON 992U8 (5(]9) A67•5261 a.,~. ocraeER ia, 1994 LO7' 1, BL O+CK 2 Projec# No. - 30' 93310 c7rawn: GSM . Chtdcsd: 5MH VA+L LEYV«W E.J TATES . F+~d Book' S~1t ~ ~ . r ~ . ' 3 e a 20' DRA IAG4GE E,ASEAfEIYT ROanwAr 15' PorvD Bo rroM a,aW a. sov PO►va aa rrvM TJC . 0-2' ,t-7A1Y0 SIl7E3 r,.p~ 4 MErAt FRaAlE 6 GRAT r . M. . , ,.,1,. -14 r "2000 'rQwALf d _ ~ ELEV 2025.sg S■T~/ALE SELr~w! ! Y ~ rrON • SCALE: _ 5.-0" $op WASJy~~ ~ ~a oo~87 ~ IS T`-A4'9 C)NAL B ExPiAES fVOV 19- 1904 ~ J. PAUL RAMER & ASSOCATF.S. NC. cNt 8<4,fffd AW LAW stWMM N. 101I5 A*V►IPM HW Y., SPC#CAte. VN49ilN00N 99M8 {509~ d67 526i acrOaFR 10. 1994 Project Na. scow As sHowN L OT l, BL 4CK 2 93310 , Dnmn: ssM sMN 4►'ALLEYVfEW ESTA TES ~'~ew ecak- sht 2 Qf 2 I ~ l - ° 25' . • ~ LpT 3 BLpCK 2 I ORA/NA6E ~ EASEMENT CURB DROP STA 2.95 r~ 151.11' EL. 2028.30 FL 1 AT 2'-ll" , • 18~ . "208" SWALE EL 2027.80 I I I ~ I ~ ~ y p 2~ ~ _ Q y~ Y b `Z m WI ' o J ;i Z W ~I o ~ I j ~ N ,30' ' 10' ~ 151.20' " 18' L-OT I ~op ~►~s~y~~ 25, BLOGK 2 a~ , 1 4 .4r ~°013Taf$~ ONAL _EXPIRES NOV 19, 199a 1 1 ~ J. PAUL RAMER & ASSOCIATES. W. CIVL EhGiNEERS APO LAND SURVElORS N. 10115 P-EWPORT HWY., SPOKAPE, W4SHNVGRON 99208 (509) 467-5261 ocroeER /o, 1994 Project No. s=". i"= 30- LOT 2, BLOCK 2 93310 Checlod: SMH VALLEYV/EW ESTA TES I FiMd Book• Sht , Of 2 ~ . ~ ~ . ~ 18'DRAIIMaGE EASEafEAIT ~ . IiOADWA; ra' Parrp Ba rrOM ~ m i~QD POAO SO TTO/i a i~ ax• i{~f elAfD 91QE9 ~ ~ ,3'1 ~ a ` TYPICAL 51►YALE Wr'❑ DRYWEZL NOT TO SGALE o? wAsVf4- ~ W • I ! -#~0030891$O 'ONAL ~ E}[P4RE5 NOV 19, 19" J. PAUL RAMER & ASSOCIATES. 1<. CvL R<44MZS AND uNo SMEYORS N. 101I5 IVEWPGRT HwY., SPOCAhF. 992Ii8 (509) A67-5261 aCroeER io. 1994 Praj+ect Na. as Sko w,v L O T 2, BL OCIf 2 9.3310 Dnmn: G5lLf SMFI VQ LLE YVIE W EJ TATES ~,s,d 5ht 2 at 2 1 r . ' . 25' Lor 4 ~s• gLOCK 2 ~ l5/.05' . ~ c,IlO' ~ _ i 30' cic ~I 2 ~ ZI yl U, , m O W ~ I~ y0 CURB DROP ~ JI ~ STA 2+95 ~ N 00 EL. 2028.30 FL I AT 2'-ll" ~ m . "208" SWALE EL. 2027.80 ~ 151.11' '~-DRA/NAGE EASEMENT /s• LOT 2 . Z~ BLpCK 2 04 NASy~ ~ J 25' ~e . ~ . c 1 m~. ot ♦ 00~ ~OtSTB `P'ONAL B~ EXPIRE8 NOV 19. 1go* ~ J. PAUL RAMER & ASSOCIATES. W. CNL EW,44:86 ArD LAND SURbEYOR5 N. 10115 NEWPORT HWY., SPOKAi,E, W45HItVGTON 99208 (509) 467-5261 aa: OCTOBER 10, 1994 PfOj@Ct N0. , Scaie: P• = 30• LOT 3, BLOCK 2 93310 orawn: GSM Chm*ed. SMH VALLEYV/EW ESTA TES FiNd Book: Sht ' Of ~ 3 ~ cc 1B~DRA/NAGE EASEIIEHT ROADWA7 lS'POMD 80T70Y . . ~ m INK EL, $OO PONO 80 T TOM d ~C • AMO 910ES y . . . _ " '70/' 9WALE ` M 0 ~ TYPICAL SWALE W/0 DRYWELL AfoT TO SCALE ~ op w~sy~ 0030887 FQISTBAe~ ONAL ~ EXPIRES NOV 19, 1994 ~ . J. PAUI RAMER & ASSOGATES. INC. QVL &C44BM AND LAND SURVElURS N. 10115 ~*WPORT HWY., SPCCKAt*, WeSFi1NC'TCN 99208 (509) d67-5261 osw OCTOBER 10, 1994 Project No. • AS SHOWN L0T 3, BLOCK 2 93310 Ontwn: ~ GS pgckod.SMH VALLEYY/EW ESTA TES i Fie1d Bppk• Sht 2 of 2 ~ • ~ LU 25' ~ - - ~ L4T 5 t~ 1s' ~ - s~o~K 2 DRA /NA 6E EASEMENT CURB OROP 15I.00' \r5,~ , , STA 4+65 EL. 2029.73 FL d l AT 2'41" "208" SWALE ~ 18' EL. 2029.23 Z Q - ~ m Z y 2 ~ Q ~ I O ~ J J ? 130, , ~ m~ _ X , !0' " 151.05' " L.OT 3 `B Lp C K 2 ~ oQ a~syi 2s• _ ~v : - 003082887 QIsrsRO ONAL ENv1 EXPIRE3 NOV 19, 1~p4 . ~ J. PAUL RAMER & AS50ClATES. INC. (7VL ENGNEERS APO LAND SUR'VENIM ' N. 10115 ~EWPORT HWY., SPOKAPE, W4%ir07N 99208 (509) 467-5261 !paye. OCTOBER 10, 1994 Project No. . 30' LOT 4, BLOCK 2 93310 0rawn: GSM Cr-eaed. sMH VALLEYV/EW ESTA TES I Fio1d Book; S~'lt / Of ~ . 3 ~ cc 1 B'ORA/NAGF EASEl1ENT . ~ . ROADWA fS'POND BOTTOY _ . ~ ~ INK a, SOO POMD Ba T TOY o /C • 0.4' ~ / AAfO S/DES , . 3:~ ~ ' "?08' lWACE M 0 ~ TYPICAL SWALE W/0 ORYWELL NOT TO SCALE ~ OQ WA9N 00`30887 ~QISTBR~' ~SS'ONAL E~G ' ~ EXPIRES NOV 19.1994 J. PAUL RAMER & ASSOCIATFS. W. aV1. BMG44EM ANQ LANO SiJRYEhORS N. 10115 NEWPCnT HWY., SpCKAPE, WkSi*GRCN 99248 (509) 467-5261 a~. OCTOBER /0, 1994 Pf0 2Ct N0. AS SHOWN L 0 T 4, BL OCK 2 j93310 G Checkw. SMH VALLEYV/EW ESTA TES Fie1a Book• Sht 2 Of 2 ° _ , • ~ 25. L(] T E ~ ~ BLorK ~ ~ ~ 150.94' ra•' 30, i i zi ~wI C ~ I ~w•s ' O 7Z u~ CURB DROP : STA 4+65 ~ ao Z) EL 2029.73 FL ! A T 2 =1!" V .,208" SWALrE EL. 2029.23 151.00" DRA fN,4 GE EASEMENT ~ ~_OT 4 ~MLA&" qL Q + K -t A;~`' 4 Z p 25' ' ~Is~~'~ ~ ~~`~lo11fAL ~~~t ~ E]iPiFiES FiOY 1 9. 1994 ~ = J. PAUL RAMER & A5SCC1ATES. W. - ClwL AND L4Nf3 5LlRVEI'ORS N. 10113 KWFORT NWY., 5i'C]ICAtlE. YASFM%IGFCM 99208 (509) 467-5251 ; oaft: ocrOeER rv. 1994 Praject Nv. 30• LOT S, rB'LOCIt 2 93310 Gsm SMH VALLEYV1EW ES7a TES Fioid ewk: 5ht ~ Qt 2 ~ r ~ • • ~ ~ ~ fB~DRAINAGE EASEkENT ROAD WA' I3' PqMD 90T7UY ~ IAK IL. rnQ Pvnro So rroM ~ AM slGES . ~ , • 3'r r{- , u • ~ '2Q0' SWA1.9 a ` TYPlCAL SWALE W/a Df?YWELL nror ra scatE wAS,yr ~cA W , ► ` 0030087 IsTSR~' ~n'vNAL EXP1RES NOV 19, 1994 ~ J. PAU L R A MER & ASSCCATES. 1<. crvL EtCP406 AW LAW suRvMM N. 10115 NEVHPCRT FfW Y., 5P(XA?,E. WNSHNGMN 99248 (509) 467-5261 acraaFR io. 1994 Pro eci Na. AS SHDWN LOfi 5,BL DCIC 2 ~ 933J0" Dmrre: GSM a,.ckee: sMN VAL.LEYV 1 EW ESTA TES ~'+*e eook- Sht 2 ofi 2 n, . uM p f_,A r TED Ci1R9 Dh'OP STA 3+3l3 EL. 2a30.9'3 1 A T 3'-6 TYPE A DRYWELL I W/ TYPE 4 METAL + ~4 L _ ►4 V ~RA,wF ,a N~ ~RArE EL. 2434.75 aa . STA 3+2[]. RT 25' ~ 1.3o.5J' 3• - - ~l17JLITY EASEMENT - _ _~,21:. 4J ~ ~ ~ ~ ~.~„2v8" swaLE ~ Df?A 1WAGE ~ EL. 2030.25 p BlJILDING SETBACK EASEMENT i . _ . . . . co ~ Z ❑ O I ~1 , 30' P f ~ ~I IQ' I Q r~ ~ I] ~l 150.94' ~ ~ LOT 5 ~ v~ Lp ~ K 0~ ~s is • ~ ~.t o ,~8003M7 25• QrsTBa AL ~E7iPlAES Ne]V ta. 1 954 ~ ` J. PAUL RAMER & ASSOCIATES. W. av~ EWAAEERS AND u{MO SLItvExORS M. 10115 ll~CWP+ORi HWY.. SKXANE, V^-~TGN 99208 (5479) 467-5261 Date: OC7'OBER ta, 1994 Pro'ect No. ~ 9~~j~ 3(?' rLQT s, BL~QCK 2 Oftwn GSM Cropaed: SMH V14LLEYVIFW ESrA TES , Fs.+e Bocsk: S~"1t ~ o~ 2 • • 'r • +s ti 44 ~ 4 ~ 20' DRA1HAGE FaSE1MEAl'r 7` ~lfCAOWA?' ~ !3' P4ND 90TTOAI . ~ 9OG POAV BOTTnM dgAW ELFY aAW~I~S r~E ¢ a~rat +~JC + 0.20' ~ ~AA1E d +6ft~l n A ~ ~ v. . 3.1 '2Oa" SWALE o ~ EL. 2030.25 Q - • ~ ~ ~ ` - , .v.~: • , ~ - TYPE p ARx4ELL TYPICAL SWALE SECT1OIV ' sc.aLE: - 3 -Q' wAs~j~~~ - ►.r ~o 41030887Q~ ~+h DIST'~R 7, C rk"'~ tp.~jdNAL ~E}(p} f;Eg NC~V 19. 1994 ~ J. PAUL RAMER & ASSOCIATES. W. Cva e<44MM AW tAW sJvYM ' N. 10115 NEWPCRT FiWY., 5PCC,41<-. W~~ 992t8 (509) a67-S2bi ocraBFR ra, rssa Pro ect No. a s sNO wu L c~ T 6, BL f) CIC 2 ~ 93~ 1~' Ormm: GSM chaiub0: 5MN VQ LLEYVIEW E3 T,4 rgS ; F+~+a eoo~c- S~lt vf ~ ; . Valley Viibw Estates , ~ r~~~i ~ • • _ ►v ? q L 1 ARAER-~ _ - - _ _ _ • r~'. 3:~' ' ~ ~ ~r ~ . °s nA' r~Qh ~ ~ Q. 9 • S~I DG E 0 Nt~~06 z d i ~•r.a 15 F Ir~ r~ e,,,• ~ ROACD:r►►Y HVE. - 13 , • - --~,d;---- _ ~ ~ - Fire ' - ~ 4 a= h • ~ r q , ~ as~rCS F s~~,F.c'r St[]t1oF] ~ ~ `'-C hc~oI . ~ . ~ ~ ' • - 3 p ~ J 'f • ~ ? ~ ~~L~ .r~ ' • N Z ~ ~ ~ r hrAi~►- , v- r` .~~w~ AV~~ ~ J ~ ~ ■ ~ ~ ~ s PRAG.+E rnr u a ' ~C• M. 5 r: F' ~ P R R GO~ ` _ ~ _ ~ rr= ~r~- _ ~ _ _ - - ~ • " ~.a--~-' : 2M CF y , ~ u .o- . ~ . A , . . . ~ ~ ~ 4 r~ . •Ki` arl ~ T1Y ~ ~ 8R`i) GE tl? ' 6 Ty A'JE ~y . ' . ' . ~ ` ' n , ses raaa 73 ~ 5 5200 4300 3700 3100 23170 1500 600 17 N800 ~ ~ ` ~ { ` ~i\ i~E`~ } a ~ ' ~ 1 1 A W ~ ~ L~a . • ~ Z ~ } ~.$t r a ~ 7 W~u~_I ~ llnuk E 31nLic ti CS ~ ~ c, i,y i ~ n E % ~ V crcl,; n~~~11; s• J [v rVwJ - - ur ' Jv O ' .i~ A4r,~7Rl1i~- I I ~ Q p su n. ~r.,.~.. _ ,i~, • ~ R1~ hc Mt d ' , 1,11®R Y13 ~ •;w+ " - ~ r.: . ,v ip~ var ~y ~ 6ufiaae s ~ Ilal r~ fl ~°eA ll rur vt B v ~ ~ u,nr~ ,6s . Sun h Nxrly L)Awtl pwt ~ 8cze ~ N •r4 °WP~; n~n ~ y 8 t ~I C.M. ~ `•I ~ ~ ~ ~ C) O7 1~ 71- 1 c~ ~ r-• a } ~ ~ a ~ J~IJ Iluma $ rq i L~ i•S r4 s,~ ' ~ ~~y Pi~„ I~li'n.•re~ FT yll ~ ~ St [ i Ics f ~ 'Jum ~ 1S yyrou.~• ~ h tsi..9 ~ a ~ pu tl:wv ~i; xpag P F1 ~l I 1 9 ~ ~ ; ~S ~1 c1~ ~ •R\+\Y2~+r m ~ nnkYin ~ ~ fx~iJ is ~ ~ i 4F I p~ i ~ ' ~ i . r • ~ ~ ~ S}Il~ ' w4 .y 4 Q , ~,h._-p^ ~ ~r 3~ ~ /~YS1~rl ~ 3pCRptli S G 5L BBed Be5 r~ ~ ~ ~ r SPC3KAIVE VA►Ll.EY FIRE DEPARTMENT Spokane CQUnty Ftre Drstrict J 10319 EASi SPFtAGUE AVE • SPC7KANE, WA 99206r3616 •(509) 428-1700 • FF,7C (509) 892-4125 R. Ppt Numphries Chlef RECEi V,ED NQV 17 1997 SPO►GIVE GoUN~EIYGINEEA November 14, 1997 B1.1l Jph375 Spckane County Engineer W 1026 Brcaadway Spokane. WA 99260 RE: Raad Name Change fvr Riley Way/Valley View Estates aear Mr. Johns : The Sp❑kane Valley fire Department wauld request that the road name "Ril.ey Way„ be changed t❑ fiimberlane t9 assure quick response fram the emergency agencies. RiBey Way phoraet ica l ly saunds 1ike Ry ley Lane of f af N. Campbell Rd. This creates a great risk that a delay could occur in the emergency dispatch of Palice, Fire sar AmYsulanCe. This proposed name change wfll not impact existing addresses. Ryley Lane is an existing road with several residents, but Riley Way has not rieen built yet. Thanks for yaur cvnsideration in this matter, Sincerely, Paul Chase Fire Marshal FCf sa encivsure: _ • ° OS't;t y♦o V' w1~~i l~: ~'t. •i;• •~ni•'v • i: •o~ y~. ~ . . . . _ , .v~~.i:~:':.~;: . •f-'•~~• •''c~• •Al~ SV.~ 'Q_ .7YtM•~..~''' . . , . . : • : , . ..~it . .r•^,•' 1~r• , 4.` . . . . . • ~ - . y ; ~ 1~ ~~i "r~ t~ . 4~~ ~ ' ~ . ' • ::~j. . • ~l! : . • , t ;~~~r{ ''i;•~' AV, ~ . . . • ' . ~ . ' ft\ ~1 f~~:' ~:R~ ~...C'~ il:v.: r ~v~ i. ~ '•Y :1~ ~ ' 1 ; '~,~;"'.r.. ~ •j' •~4~ : 1 ~ .1'~' 1 '':~1 ' `i : y • ~ • ,i . . l' rrtA1.~~•Sl~. 1 .1 7a it•.•l~tS~' .i' • • ' . . ~ . ~ r~( 4~ i , ,i~ 'ti .n ~ t;~~K"~~:~v~`.^•:~~~.; ~~4' ' . . ,:i.• .r~'e:~ , G. ~ ~ ~ ' , • , . ' ' , • . ' ' .i•'~:•. •},.,•sy' :t ,k:' ~;i'.' ;,o•'^'•~;~'~: t,, .,;I;~ ~•.:~~~i . . . . . . . . . r ' ~ • c~~ ,t •:..`'r,: " . '..'~i: : _ -El /2 OF TRA.G~7'~.~22:.:OF. .;VERA:~;~-~:~.;:,.. ~ . ~ . . • ~ ~ . .Y.. : . •..-:.t.. :r.:.:... : • . . . . . ` ~ ~W.M: . . ~ ~ ~ : POlZTlON -OF. SWl /4 . 0~'.-~SECT'.~C1N713;,;;T'2~SN;; :R44 L~;: ~ . - ~ . . . .•f. ` ..r~. ~ . . . . t:;~. ~4 , • . , , S~°OI~'ANE ~ CO U11~~T..~''.~! ~%VAS'IY~NGTON:~ ° ~ ° . . ~ ~ ( . . • ~ : a . ~ , : . : . _ ~ ; , . , . . . . SCALE ; ~-~sp . : . . . . . ~ ~ ~ ~ ~ ~ ~ . . . . . . . - : . . . . . . . . . , ; . . . . . : ~ ~ ~ : ~ . . . . . . ~ ~ . ~ , . . , . . . ~ . . ~ ~ . . . . ~ . , ~ . ~ ~ . . . . ~ . ~ . . ~ " ' . . -i I , ~ . DEOICAt'~I~ON.: ' ' ~ ' . ' 't . , : . . ~ ~ ; . ' ~ ~ . . . . . > ' : ~ ~ . . ' ~ ~ . , ~ : . , . • . . • ~ 8E (T•KNOWN; BY,'.•THESE31'RE . SENTS•~.that' SHAMUS J. REILLY -and, 'PA . : • • • ~ ' - . WASHINGTON 'MUTU11L •`SAVINGS BANK, a Washington' corporation,~:•h lands shorrti hereori• as..'YALI.EY V 1EW _ESTATES be i ng lega'l l y- descr • ~ ~ ~ The-East•'half•of;•Tract 22.6f •VERA,=bs;~pe~ plat ~ther•eof''rec• _ • • ~ - . ~ . . . ALKI 6 MDORE . ' • ' ~ ' ' ~ ' ' " FND BENT SP/KE SI 4U8LC'.,In the Counfy of !;pokane, ;Sta.te•:of' Washingtori.•; . 0.6' BELOW ROAO ~ . ' ~ : ~ ~ ~ . • • . • . . . . • . _ ' • , ' . . , , • . _ • • 't' , ' ' a• . . . . • . • . ~ • ' • ' . ~ ' ~ • • : • • ~ ~ ~ 1~., Side:*•:,yard''::-and.••"rear,, 'yerd setb6cks • shal I ~~be•,•'-tletermin ' ' . . . , . requested~ `Lnle.s. tFiesa: set6acks.'are~.- specificai,ly _draf ~ • , ~ ~ ~ ' ~ ~ • • ' •:Indicated on ;tliis-%plat, may ~bc' var'ied f~om,, f f• proper--zon . • ~ . • , :.E• • . ' . ~ • . _ . . , . , , , , . . . . . . . ~ . . . . ~ •t:. . - - ~ • ~ ~ ' ~ 2.' ~ Utt 1 ity~.~ easeinents .~shown~ on`°'tfie;-herein•• ~desc~ibed'~~plat ~ ' • ~ ~ ~ ~ • , ~ ~ ~ _ ~ . . ut i 1 i ty,'compa~nie's ';~~for ''construct ion,.; reconstruct ion; , ma ' • ~ • " ' • • ~ ~togethe~•tiith','the-~~~igl~t'~.to• inspect•:'~a1d•-utilTties-;and . . ~ . , tliat may.,interfcre:'wltli'-'the:.const'ruction•,, .`maintenance an, ' I • ' ' . • • : ! , 11.. ti wY. ' ' " : ~ ~ ~ . • . • . • • ~ ~ '3~. The :publ ic',wat' r::`.Yys~t~cm,:,'.,pursUanT,- fo.'.the:'•VaYet~...P'lan ;'a ~ . • ..~r'authorittcs';:;tlie..,.:l.oca'I,- flre'.-.p~bt'cct~ton •'dTstrTct;!:Cour ~ , ' • ~ • ~ , • ; purv~Yor',:.~,shal l~ be ~:instal•led. Ni thin'~,~this arid,tl~e' • • . • ' . • ~ . ~ ~ ' ~ ~ dome?tic "water.,•'serviceai.wel~l 'as f.irq*•protectlo~~•to,:e ~ ~ • . ' ' , _ ' . ~ , ' ' ~ . ' • ~ • prlor.••to.~issuanCe,'of .a bui Idiri"g'.permi•f.•for.•'e0ch:.lot:: ' ~ . . ~ , - (i,J . - ' • . • • ; • ' : ' ; ~ ; ~ r , ~ , ~ . ~ , ~ • • • W;'I. . • . ~ • ' : , •Use"of~p~r~ivate`itel'Is'and•++ater.~rsys~tems' Ts•~prohi~btted.:::-;:' , . , c MAP PAGE 4513 ZO\E G-8 04-29-97 ; . E 17100 E 75500 AA1S510N I LN--16 - ~s~ t ~ • ~ ` SF~~KANE RIVER ~ rv-t 4 x 4 ~ . 7 ~ ~ J N t-R~"~~ y - ~ `i 07a01069 362 ~ 0 (991068 3624 ~ ~ 3626 ' 1067 '-3627 .3618 .3619:620 . ~v-aD 3623 , :3821 3622 F,~~EWAY I - ~ p 1',fi17 3616 gRpADWVAY BRC]A1~WAY 3 ■ 4 ■ ■ , ~ 01072 ~ ] f}73 ~ 15] 3 L) *3446 ' 1074 ~ O ~ ' 2287 0 ~ ~ • RDA❑ 1~C3r fv--5 307t ~22$8 Ihf YET :x ALKI ~ ~ . I Z' , ' 1477 1$31 z c~ • • 190] -i 0 o ~ u- 108D ' 11ALLEYWAY 107, II r 107$ 1076 VALLEYWAY .1{]75 N-4 3408 • 01900 ~ ~H13(❑id CT. ~ ~ z 1653 V) 3407 3335 J ■ MAIA! y p, ~ N-2 ~ 3594 " 3195 ~ $ a- 3793 • 2041 2040 z ~ ; o • 3192 0 7654, w ~ Q 2434 ~ z ~ 3191 3196 2042 ~ • • 3203 }~1VEF~5119E ~ 2208.rAGLES ~~24]9. ~3~~ ~ 7~i58 1083 3190 2043 • 2798 2377 1082 ~ 1087 N-0 rn . . • SPRAGUE • . • SPRAGUE .3321 . _ ~ j ' ' ' ■ • ~ p . ■ . . • ~ ~ E 15500 E 16304 E 1710~ ~ MAp PAGE - 5529 ZO\E C-l 0 03-08-95 \ LINCQLN RpAD 1tit-$0 ~ ~ . ~ - ~ ty n Z ¢ p 0 • . m -.AL oopn.u N-7Z DISTRICT . . 320; wEDGEwooD w I ~ r ~ ~ *32t14 ~ hl--64 ~ CRESTwpDD E7RIVE - ~ . I , ; MAlLE3dG ADORE53: OFFICE Li0G1TEON. Po avx Isrrn N 10115 NewROar Hvvr SPOIVrNE. VtifASHINGTON 99208 SPDIG4NE, WRSHINGTON 992iB PHONE (509) 467-5281 FA7C (509) 487-5262 J. PAUL RAMER & ASSnCIATES, INC, CDNSI,ILTINC, C1V[L ENGINEERS & LAR10 SURVEt"OR$ WASHINGTON • 1DAHp - MDNTANA NEVADA • CALIFpRN1A t]REGC3M 1PY't7]eC:t Na. 9'3310 MaI'Ch 28, 1994 nrainage Stttdy for Valley view Estates Portion of SW1/4 of Sectian 13, T25N, R44E, W.M. 5pokane Cvunty, Washington V~ Prepared for: snamus Reiiiy E. 15815 Valley Way Veradale, WA 99437 Phone. 244-6$10 9t ~v 'Pp Cryi` ~CJ1vA3.. ~ E)f PkREE; N:3-v18. 1994 RECEIVED JU Fy 0 1 1994 SPQIiANE COUNT1' ENGiiVEER _ • . 0~ PROJLCT ANL] SITE UESCRIPTIOPT The proposed pTat vf Walley View Estat+es is a 13 l.at sangle family residential plat tv ae constz-ucted on approximately 4.83 acres in east Spakane Caunty. The site is situated on the narth side vf Valley Way and west of Moare Street in the SW1/4 vf 5ectian 13, T25N, R44E, W.M. Sg]ak3riB CDL1I3ty. The propased site is generally fl.at with the terrain sloping tv the south. The slapes on ths site run between ❑.5$ and 2*. The soil in this area is gerierally camprised of Garrison gravelly 1Qam (GgA). This sail is excessively drained and has rapid permeatrility. 5urface run-off is slvw and the hazard vf soil erosian is slYght. . . . ~ _ ~ ~ 17'\ MLTHDD OF MANAGEMEHT The PrvPased Plat of ValleY View Estates has tworsePa_rate basins cr+eate by the planned internal raad. Al1 starmwater will rennaa n san-si ecause the improvements to Alki Avenue as well as the widening of Valley Way. A low pvint in the westerly sectian vf Alki Avenue will allow a"20$" swale and type A dx-ywell to cflntrol svme run-vff frrsm the northerm sectian of the sitei which 3.s mastly imperFrivus area from ths improvement of Alki Avenue. The rest vf the on-site starmwatex wa,l.l run sauth and be collected in trav "20$" swal.es with type B d ells, vne on either side of the proposed ew ~ internal road. An tarmwater created fram the impravemen f Valley Way will also flow t❑ these two swales and be collected there. oavelopment of this plat should have litt3e or no effect on the drainage flow pattern in the area. ~ - sPnMANE COUN7r, wASHsNGTOrv - s}-sEE1 NUM[ , I ~ . ~r- , ~ , _ . __~-r, - ~ _ ~:AgA - - f a ~~j~. ~ • P5A .i s GgA ~ y a c . r~,~ I e r . , ~j G$13 n f CAfYA'L •,.es~ `i _ . . ~i . Trerif-woW ~ • Ji . ' ~ _..r'~¢ ~m~~~• • ` + _ ~ N ~ ' lTY F~.~l~. ~ ~ ~ ~ YLL'1~ '~C~ -tY'I• • ~ ti L~. _ ~ • , y • ~ _ • _ : ~ - _ ~ f , ` ` .~r ~ k~ 'p~l~•°~`--~y-~' ~ON iGnB p CrFrc"~_ , • ~ 4.j ~ • ~ 'i ~ ~ . ~ m~[~~' . NpRTFiERM . . ~ C !JX ~ vxt~., 9 k.' iL, t~+~~~ i~~ • !s PsA .e3 2 t '•,..aa- s~__ 'yc'.. ~W~« ~ ~ ~ ! 'r~ ■ t ~ ' ~G 1U11111 ~ _ ~ . : ' r~~ ~~y , , , - - + - _ . . - . -:u~~~ r Fas`i~ r^S ~ '4 ~ ;S IS 4i I~ ~ ~ 4 ~~+'.,~'~9. • ~ L G&~q ~ ~ • • - ' ~ ' I I1 II ! ~ 11~i ~ n R01~"ng ii`"r~ u'~r a - •_....r ° 3 i r i ~r': _ / o ~ ~ r = . . i I ~ . ~"osc % II [i ; . . . . ~ . . 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MItiE :)fcag,cal 5uryey , 5 - Q ~ - 7~ FEET ~ n 1d00 2 3~ 4~ ~ ~ 3° ~ ~ eUrr.ai►vc sETsacx AND ORAINAGrEASEAiElY7 Lllilr 132.Ot7' 0 30' ~ DRaF -STA l.D~ 8 rLE 8P5. 9 f I ~ -W8• ~ ELE SO'2 ° ~ J ~ r FYPF 8 DRYwELt r w/ Tl'FE 4 AiFr►4 FRA ELF 2023.7 STp BU1LAlAfG SE78ACNf" L1HF . E Ps' 7 ~ 30 _ ARAIkAG ~ EA5~A1~A1T ~ . ~ a• FUruRE AcQu►srt,vx ARFa / . iv• ft",w ►0r.7o' ~ DFrrIcaraax VALLEY WAY .t SWAI-E A~-B ~ ~ i ~ BUiLarnrG sFtaacrc AND DRAl1WA6E EASE'AfENT LINF YaL_ • ~ 14520' d A!~op .O) ELEY Df6.99 ~ 208' S EI.E~V D" TYPE 0 DftYwELL ~ . . . . . . . wi TrPE 4 AIEr J Ps• ~ euItDrNG sEra.ac►r crrvF FRaMF i ELFV sa srA a r ~ ` ao• • DRAIAIAGE EASFAfENT ~ ~r ~r''. . . . . . . _ . . . ' . . 9` FUTfIRE ACQ11IS1TION AR,EA in • ~ IQ' R/W dEDlCAT10H ~ i VALLEY 1N'AY + - S WA L EE ,8`14 ~ ~ I rrPE a ARrwELL wl ra%PF 4 MErar. I F'RAM£ JIND GRATf i EaEV gaao.ss sr,a ►#aa;R T 28' ALK1 sLIWA a ,.°,s,°, A YE1'V[lE E~ Pa3~ Roaawar ~ ~ ' -208- sw~otF ~ EtEV ta~. g~•"` BfJi.D1NG SETBACK LiN a GE EASE+~~NT ' L . . . . . , ~ ~ - 0 v ~ q, a ~ ~ ~ . 4 . - ~ 132.oo' SWaLE C : - ~ SWALf A & B w a 30' rpRA1NdGE ,EI15E11FWT d' . RaADIYA Y ta • PoND Ba rroM ~ G TrwF 4 M-ErAt ~ E FRAAtE S GRA'r ' E~,~ ~ •i r. ~3 • r. ~r H,. ..nr•;j~ 'f08" S1Y ~ ELEV 2 _ r ci L~ 1~1 ' j~ S'OD oR SR PO so ~-ra~r s~~s , C'M C=~ , . _y ~=L. FO11 i TrPE B D+arwE.L • I ti ~ SW14LE C a RO' DRRINAGE EASFMEIYT cr s-) a RaADiVAY ~ 1s' POAfD BaT7Q+►1 ~ 900 QR ~ND 4, 6GTTQ►f~MD SiGPES rrrE s MErAt ~ FRAME ~ cRu rE T vo8. .^1w14'L+F ~ iL ELEV 2089.79 q ~ ~ ?~aL `rr ri snti ' , TYPE A GRYWFLL I rrPE 4 MErAL FRA1LlF 8 GRATF ~ MOJ4 TA R IN PLACF . GR,d SSEQ SW'ALE , 3 3 ~ C:~ MORTLYftEC1 ~ AflJUSTMFNT • ` ~ 2'-0" RlIVGS . I- - ~ 4 ; • ~ ~ 4" CaNCRE7E SLA8 (SE~ N~T N E ~J 2°a 2°/v ✓ . ~ ~ _ y- : ' . ,y 6' : + , ~ IL-• Y-~. o a'' ~ ~ ~ 67~n~v' F 1 ~ ~ . + v Y,~~ l7n l" _ 3 " WA$1-IED NATUl4AL ~ • , , ' , " GRA VEL 8A CffF7LL (SEE IIIQ TE B V l U e. p~aa+ iQ . „ J $FEPAGE f'L?R75' ~ • ° ~ ~ •e F~l~RIC LfIYFR r~ca •4545 ~vR ~r~~v v ~aM v ~s, ~4PF'{,'QVED EQU1V'~#L~°NT < <; . . ~ ~ i~ , • . ~S~f'' d • ~ •'.4 ~ ; ;-'-E .4" + ` ~i • 'trer ~ . a,I,^.• J' ~ LINl3fsT[I,RBEf1 sOlL ~EATERAL NOTES: 1. GRAYEL HACKF'TLL QUAN= FQR DAYR'EI1.. 'ffYPE "A" - 30 CUBIC YARDS MNIMUM 142 TDM5 2. ODNCR£'IE SLAB 51-IAI.I. BE CLAS5 301)0 ODN{RETE. 3. AU1UMAEN7' BIACKS SHAI.L BE CEMFNT QDNCRE3E 4. PRECA.S`I' RISER MAY HE USED II►1 00MBdNA`IION V47TH UR iH T1BU OF AI7]USMC BU)CKS. ~R YMELL - J ~~E ~AlE: 1° ~ 2'-0„ ~ Y rt- rrPe 4 MEraL FRAAE S GRA T'E MORrAR w PLAcF GRASSED SwALE 1~. l' • ~ ~ ~•4• rr. r~~l+, ! I~a I+i I ( •4' r' 3 , . ,~nRraRED • ApJUSTA~ENT • ~ ftINGS C I I~, r 4"' CDNCRE7E SL AB 2% Z IS,~F NOTE • ~ : . iL • ~ • . . . ` . o~ + ~ ~ ~ ~•a ; `..y • ,s ~ ~ ~4 ~ d ~ r~, . 1, E F ~ ~ y4 v~~ Ea 4q ! ~ P'~ • i~ ~ ~ ~ V [a ai p~y,-y a ► • y Y / ~ ~ ~ ~ Op iJ L t L i • "yy•V 9L V ~ SEEiPaGE . . w ~ a` fp ~ Pdl4 T5 a ~ `6 ~ • ca ~ ~ c. zj d ti t a es v ' ~ ' I ~ L • Y .i t l I • ~,i'k ' ^~I r• _ 3 W4 SHF~ NA TU11A L GF?A G'EL 8A CFCFIL L rsEE nrOrE 0 o`re 4~ 1 ' i E~ `NW s d J~ ~/Y ~ I s^~ 1 FAl9RfC LdNFR 12" AMOCD •4545 OR MrN ,d PPROVED EQUIYALENT •~~.'c ~ r!' f~ C ' p 4• • tv -f• : ° ~ :t :'a' v'~ Z:l+~ r~ • riyr.(' - ~'aE!'41LR4Lr NC1 TES: ~ LWDlSTURBFD 5alL ~ 1. G'FiAVEL BACKFiLL ❑llANTT1`Y FOR pRl'WEL1. T'YPE "B" -+4{3 CUBFC YARDS h3INIML9A+i+'S6 T(}NS 2 CDNCRETE ST.ABS SHAL.L HE CLASS 30DO CONCR.E'f'~ ~RY"LL -TYPE FPB rr SCAI..E 1' ~ 2'-O" 3. AD7L]MMNI' BLUCKS SfiAI.L HE C:E►+iEl+FY' Cf?NCRET'E 4. PRECAST RiSER M11Y 8'E L15EI] [N COMB[NAMON WIT"H OR Ih 'i3E[3 L]F AI?TL?S`I'ING SLACK5 5. SPECiAL HACKFiLL MATERUA.I. PDR DRY%'ELLS SHALL OD1"iSlST [3F WASHFD GRA►1EL CFRADED FRC1M 1" TC1 3" - 'WITH A MA?C1Ml9M OF 5% PAS.+[NG THE U.S ~O 200 SCitEFA1, J4S MFASLIREI? 8YWE1GHT, AMAX]MUM OF 10% QF THE AGGFlEGATE, A5 MEA.5L1RF.R 8Y yVEIGHT, klAY BE , ' CRUSHEf] OR FRACMRED RaCK. 'fliE RF.MAIN[NG 9096 ' . SHALL 8E NA'[~J3ULLY 0(]L~JRRtNG UNFRACfURM MA'[ERLAL . QWSTRING METHVD (TEN YEAR STQRM DESTGN) PROJECT: 93314 ETENTIdN BASIN DESIGN BASIN: A DESIGNER: G. MILLER NUMBER dF DRYNTELLS PROPOSED DATE. 15-AprR94 +D 51ng1e (type A ) I I3vuble (tyPe B) Total Area (calc.) 1.86 (see following sheet) Time of Gonc. (calc.) 12.69 {see f❑llawing sheet} Camposite "C" (calc.) 0.43 (see fvllowing sheet) Time of C❑nc. (min ) 12.69 Area ( Acre$ ) 1.86 C' Factox' 0.43 • . Impea-v3ous Area (sq . f t.) 13800 Voltme Prvvided 208: 575 $tvrm: 875 Outflaw ( efs ) 1 Area * C" Factar 0.81 iF 1 tr 2 TF •3 '!'l4 "R 5 7T 6 47 7 Time Time Intensity ~ dev. V in V out 5tivrage Inc. Inc. (min.) {sec.) (in./hr.) (Gfs) {cu. ft.) (cu. ft.) (cu. ft.) (#1*60) (A*C*#s) (autf.*#z) (#5-#6) 12.69 761.35 1.99 1.60 1636 761.35 875 5 300 3.18 2.57 1032 300 732 10 600 , 2.24 1.81 1453 500 853 15 900 1.77 1.43 1655 900 755 20 1240 1.45 1.17 1707 1200 507 25 1500 1.21 0.98 1717 1500 217 30 1800 1.04 0.84 1728 ' 1800 -72 35 2100 0.91 0.73 1732 2100 -368 40 2400 0.82 0.66 1759 2400 -641 45 2700 74 0.60 1767 2700 -933 - 5{] 3000 ❑.68 0.55 1788 3000 R1212 55 330(] 0.64 0.52 1838 3300 -1452 60 3500 0.61 0.49 1900 3600 -1700 65 3900 0.60 0.48 2014 3900 -1886 70 4200 0.58 0.47 2087 4200 -2113 75 4500 0.56 0.45 2151 4500 -2349 80 4800 0.53 43 2164 4800 -2636 85 5100 0.52 0.42 2249 5100 -2851 90 5400 0.50 0.40 2283 5480 -3117 95 5700 ❑.49 ❑.4D 2356 5700 -3344 100 6000 0.48 0.39 2424 6000 -3575 F g v 0 ~ 1 77 RAYNAGE POND CALCULATIQNS Required grassy swale pond storage volume ~ Impex-vious Area x.5 in./ 12 in,/ft. = 575 cu. ft. pxvvi ded : 575 cu. f t. DRYW'EUL RE¢LIIREMENZ'S - 10 YEAR DESIGN STORM Maximum storage required by HQwstring= 875 cu. ft. prvvided : 875 cu. f t. Depth vf storage swale = 0.76 ft ~ Nunber and type of ❑rywells FtequaLred ~ 0 5ingle 1 nauble TIP►IE ❑fi CONCENTRATION (minutes ) Tc (overland) Tc (gutter) ct ~ 0.15 L2 = 460 Zi - 1 LIcAy = 140 z2 = 50 N(A) - 0.4 H ~ 0 5(A) = 0.005 n = 0.016 s = 0.008 Tc (A) _ $.23 d = 4.19 si(a) = 0 Tc (9u) = 4.45 a(B) _ 0.4 Tc(A+H) = 8.23 S(B) - 0.15 _ TC(tot.) = 12.69 Tc ( B ) _ 0.0 Intensity 1.99 Areas p*C A = 0.92[]55 WP ~ 9.7706 A 0.00 ❑.Z, 0 R= 0.0942 B 0.28 ❑,90 0.252 V = 1.72 c 0.12 0.80 0.096 Tc(3u) - 4.46 ❑ 1.14 0.15 0,171 Q[est) = 1.5$ E 0.32 ❑.9O 0.288 0.00 0.00 0 Hvlding ~ 16.39 0.00 0.00 0 Total A Cvmp "C" 1.86 0.43 Q=C*I*A= 1.60 o(est. ) = 1.58 A: q sq ft undevelaped meadows/pastureland B: 12,250 sq ft existing and proposed structures A:SSunixlg 7 nEw hOmeS at 1,750 $q ft PaCh 5,227 sq ft existing and prvposed drives and walks Assuming 20 wide cirives and walks far 7 hvmes D: 49,658 sq f't existing anc3 propased grassed lawn areas_ Assuming frvnt and r-ear grass yards an 7 homes E: 13,800 sq f t proposed rQadway I.,_ IOWSTRING M£THOD (TEN YEAR STQRM DESIGN) PRDJECT: 93310 IETE°NTIflN HASTN ❑ESIGN HASIH: H DESIGNER: G. MILLER NUMBER DF DRYWELLS Pfi4Pp5ED I7ATE. 15-Apr-94 0 Single (type A) 1 Double (type B) Total Area (calc.) 2,12 (see follawing sheet) Time of Conc. (calc. ) 12.79 (see follvwing sheet ) Cvmprsite "C" (calo.) 0.40 (see follawing sheet) Tiane oi Canc.(min ) 12.79 Area (Acres ) 2.12 • C' Factor 0.40 - Impervious Area (sq. ft. ) 16990 Vvlume Pravided ZQB: 725 starm: 975 C7utflvw (cfs ) 1 Area * G" Factor 0.86 n~=~ae=caa=acs~s=acc=arsa=.ca~aaaaacaca~ccc.-ea.-~~~~asc.c=~:~~.r...~r~~.~~~=_.° = 1t1 tpG #3 774 'R5 #6 Time Tirne Intensity ~ dev. V in V out Stprage rnc. Inc. (min. ) (sec. ) (in,/hr. ) (c£s) (cu. ft. ) (cu, ft. ) (cu, ft. ) (#1*60) (A*C*#3) (Dutf.*#2) (#5-#6) 12.79 767.26 1.98 1.69 • 1740 767.26 972 5 300 3.18 2.72 1094 300 794 10 600 2.24 1.92 1541 600 941 15 900 1.77 1.51 1758 900 858 20 120[] 1.45 1.24 1812 1200 612 25 1500 1.21 1.04 1623 1500 323 30 1800 1.04 0.89 1834 1800 34 35 2100 0.91 0.78 1838 2100 -262 40 2400 0.82 0.70 1867 2400 -533 45 2700 ❑.74 0.63 1874 2700 -826 - 50 3000 0.68 0.58 1897 3000 -1103 55 3300 0.64 0.55 1950 3300 -1350 60 3600 0.61 0.52 2015 3600 -1585 65 3900 0.6[} 0.51 2136 3900 -1764 70 4200 0.58 ❑.5Q 2213 4200 F1987 75 4500 0.56 0.48 2281 4500 -2219 80 48[]0 0.53 0.45 2295 4800 -2505 85 5100 0.52 ❑.44 2385 5100 -2715 90 5400 0.50 0.43 2421 5400 -2979 - 95 5700 [].49 (].42 2499 5700 -3201 . 100 6000 0.48 0.41 2571 6000 -3429 ~U r~ ~ iRAI~1AGE FQND CALCULATIOI~S Required grassy swale pond stcarage volurrrEe = xmperwivus Area x, 5 in. / 12 in.,Jft. = 708 cu. ft. pravided: 725 cu. ft. DHYfinTELL FtEQLIIREM$T+IT$ - 10 YEAR I]E$If,;N STORM Maximum storage required by 8owstring= 972 cu. ft. provitied: 975 cu. ft. Laepth o€ storage swale = 0.67 ft Number and type of Dry%wells Required = 0 5ingle Z bouble TIME OF +CC}NCEIdTRATYpN (mix7utes ) Tc (overlana) Tc (gutter) Ct = 0.15 L2 = 450 Z1 - 1. Ll(A) = 145 zz = 50 N(A) _ 0.4 e = a S(A) 0.005 n = 0.016 S = 0.008 TC (A) = 8.40 d = ❑.20 ,1(B) = ❑ Tc (gu) _ 4.38 a(B) - 0.4 Tc(A+H) = 8,40 5(H) = 0.15 Tc(tDt.) = 12.79 Tc (H) s 0.0 Tntensity 1.98 Areas "C" A*C A = 0.9696375 WP = 10.0277 A 0.00 0.25 0 R = 0.0967 B 0.24 0.90 0,216 V = 1.75 c 0,10 [].$fJ ❑.Q8 Tc(gu) = 4.38 m 1.39 ❑.15 0.2085 Q(est) = 1.70 E 0.39 0.90 0.351 ❑.p0 0.00 Q Hvlding ~ 16.39 0.00 ❑.a0 ❑ Tatal A Comp "C" 2.12 [}.4Q Q=G*I*A= 1.69 West.) = 1.70 A: p sq ft undeveloped mead❑ws/pastureland B: 10,500 sq ft existing and proposed structures Assumnig 5 new hames at 1,750 sq ft each 4,356 sq ft exa.sting ancl proposed driVes and walks Assuming 20 wide drives and walks far 6homes D: 60,548 sq ft existing and proposed grassed lawn areas Assuming front and rear° grass yards on 6 homes ~ E: 16,990 sq ft proposed rfladway r- OWSTRING METHdO (TEN YEAR STQRM DESIGN) PRaJECT: 93310 ETENTIQN SASIH DESIGN BASIN: C DESIGNER: G. MILLER NUMBER DF DRYWELLS PRQPOSED nATE: 15-Apr-94 1 Single (type A) a Doub3e (type B) Tvtal Area ( calc. ) 0.21 (see follawing sheet) Time Qf Ccanc. ( calc. ) 5.00 (see following sheet ) Comp❑site "C" (calc.) 0.40 (see following sheet) Time of Conc. (min) 5.00 Area (Acres) 0.21 C' Factar 0.40 Impervi❑us Area {sq. ft.} 3060 Volume Frowided 208: 135 storm: 202 Dutflow { cfs } 0.3 Area * C" Factar 0.08 aa===~a=~sac~~oaaccc=~cca=~aa~aa~~=aaa=c~~=~c~~~~ta~~~~=~~===cm=scaa~a f11 ft2 i1'3 #4 1} 1 #6 7t ■ Time Tiane Intensity Q dev, V in 'L7' out Storaye Inc. Inc. {min,. } (sec. ) (in./hr. ) [cfs) (cu. ft. ) (cu. ft. ) (cu. ft. ) {#1*60) (A*C*#3) (outf.*#2) (#5-#6) 5.00 300.00 3.18 0.27 1,07 94.80 17 5 300 3.18 0.27 1[]7 90 17 10 600 2.24 0.19 132 180 -48 15 900 1.77 0.15 149 270 -121 20 1200 1.45 0.12 159 360 -201 25 1500 1.21 0.10 163 450 -287 39 1800 1.04 0.09 166 540 P374 35 2100 0.91 0.08 168 630 -462 40 2400 0.82 0.07 172 720 -548 45 2700 0.74 0.06 174 81o a535 50 3000 68 0.06 177 900 -723 55 3300 0.64 0.05 183 990 -807 60 3600 0.61 0.05 190 1080 -890 65 3900 0.60 0.05 202 1170 -968 70 4200 0.58 0.05 210 1250 -1050 75 450(} 0.56 0.05 216 1350 -1134 $D 4800 ❑.53 0.04 218 1440 -1222 85 5100 0.52 0.04 227 1530 -1343 90 5400 0.50 0.04 231 1620 -1389 . 95 5700 0.49 a4 239 1710 -1471 _ 100 6000 0.48 0.04 246 1800 -1554 - - 1-7- (9) ,RAIrrAcE FoNra eALcULATIONS Required grassy swale pvnd stvrage vvlume = Impervious Area x,5 in.] 12 in./ft. = -128 cu. ft. provided: 135 cu. ft. DRkWELL REQ[IIREMENTS - 10 YEAR DESIGAi 5T❑RM Maximum stvrage required by Bvwrstring= 17 cu. ft. pravided: 202 cu. ft. Depth af storage swale = 0.75 £t Number and type of Drywells Required = 1 Single 0 i7auble TIME ❑F CC7NCENTRATI+QN ( minutes ) Tc (averland) Tc (gutter) Ct ~ 0.35 L2 = 80 Z1 - 1 ~l(A) = 35 z2 = 5(] N(A) = 0.4 B 0 S(A) _ ❑.005 n = 0.016 s = 0.008 Tc (A) = 3.58 d = 0.10 ,1(e) = Q Tc (gu} = 1.21 N(B) - 0.4 Tc(Afa) = 3.58 S(B) = 0.15 fic(tot.) = 5.00 me (H) ~ 0.0 Intensity 3.18 Are3S „cir A*L` A = 0.244902 WP ~ 5.0396 A 0.00 0.25 0 R= 0.04$6 S fl. L30 0.90 0 V= 1.11 C 0.00 0.80 0 Tc(gu) = 1.21 R ❑.14 0.15 0.021 Q(est) a 0.27 E 0.07 0.90 0.063 0.00 0.00 a HoAding = 2.85 ❑.0Q (].0❑ C? Total A Cvmp "C" 0.21 0.40 . Q=C*s*A= 0.27 Q(est. ) = 0.27 A: 0 sq ft undeeesaped meadvwsrpasture3.and B: 0 sq ft existing and proposed stxuctures Assuming ❑ new hmmss at 1,750 sq ft each . 0 sq ft existing and proposed drives and walks Assuming 20 wide drives and walks far I hvme n: 6,098 sq ft existing and proposed grassed 1.awn areas , Assuming frant and xear grass yards an 1 home - E: 3,060 sq ft proposed roadway ~ CURB DRQ,F AND INII,ET CALC[ILAfi?aH'S PQ= ~OA i y• J C+~ ~y CQ1 s CLlr'b DI'Dp Low Point 2$ Cross Slope from Figure 1, 1-$, capaci,ty/ft at low pai 6 fs / ft L{re+q. .g . 5 = 2.75 ft. * Provide cur'b drop @ 3' -(J'(S) " GGZ. Q=1.35 cfs Curb Drop Low Point 2% Cross Slope fram Figure 1, pag 18, capacity♦ft at lti7w poi 0.35 cfs / ft L( req. ,3 0. _6 = 3.75 ft. * Prvvir3e urb rop @ V-Q(6) Ca3. Q=0.99 cfs Curb Drop Law Point 2% Cross Slvpe - from Figure 1, page 18, capacity/ft at low pai 0.36 cts / ft " L(req.) = .9 / 0,36 _ 2.75f ~ * Provide curt~ draP @ 3' ~ ~ ~ t.~ r~ _ ■ ;R_ b I.0 ~ z to 4 ~i e a .e 6 10 2 .A 4 ~ 9 F= ' . L6 .7 f" 1.6 e Z 7.5, ~ ~ . O . ~ a yl~~ ~i.o• W 6.0 n' = 9 ' . N 1.0 L6 ~ .s 6 .e xx~'~`,~ Z •e z , s.s •6 ~.01 a ~ p 1 J . / O -.6 ` a•3~ W ~ U. ~i- W 2 . ° . ` o ' z ! .S ? 3.5 W _ ; I'l;.' a W p i ` 0 W .08 t I . i J Q .3 i • 4' O .2S U. .06 ~ ~ W ~ ~ . ~ °o .o, 3 .25 1 i w 4- 6. j ~ ¢ 0 = 2.s . .z ' a F .2 ! a } .oz - o ~ ~ LL. i aa r . ° 2 a o .is c~ .oii .1s cr ; L . ' , MT, ~ .~a.+:• '•1f. - N CURB 1.6 0,1 e, C LOCAL QEPNESSIOK l°) ~ I ~ NOMOGRAPH FOR CAPACiTY OF CURB ~ ~ .t t.2 ~ OPENING INLETS AT LOW POINTS IREOU Of pUB WASK NG 6N, O.C. . ~ VISION TWO, FIGURE; ~ . R . ' ~ . lr 1 -?0- ~ v , OflfLDlNG SE76ACK ANR • • tlRA1NAGE EASEAlENT 1.lN£ ~ a.-. 38' 14:5.20' •,ti C1JftF ORDP ~ 1 I 9TI3 d+ ELE P 6" 8 ~ r ~~v ~ ~.J rr,~F e ,~Rr~rEC~ w~ ~r►~E 4~r I 2s• euir.arNG sErs~ac~r ~,l►r~ ~R~ ~a 2o~a. STA s9' 3t7' S~11t~lIT ~E)A ~ A~ . aFvrvRE ~ncaurslria,v aR~► r~a.~~• ' 4 sn' R!W DFDlCA71CiH VALLEY WAIY + - qq ~ 00308 ~ ~ QISl'FR4' 4f ~ ~ ~ I ~11 ~ D oLps'lUAPA L S JU11 0 1 190 ExPIAES N[]V iQ, Tii~ ~ ~ SPMIE 12 ~ J. P►4UL RAMER & ASSC3CaATES. INC. eIaIL ENGir~~ERS aNo LANa SuRvEYORs N. 10115 NE11VPQRT HWY., SPOKANE, WASHING'fC)N 99208 (549) 467-5251 Date Mgt?cN 28. 1994 . . t~ Project Na. 933 I~] 5eake• LOT I B LOCK 2 Drawn• GSM Checked 5M" VALLEY V IEVV ESTATES Field BoQk: _ Sf]t ~ ❑f ~ ceffoROWs 154751 y n . w ~ ~ . 30• DrrA INa sE FAsEMFxr , N f a,I' ►aOA " QwA Y 23'PoNa eorrOM , ~ ~ T►'PE 4 AIFTaL FRAIK~ ~ G1iA T ~ " ~ .r : r . 'N. 3J r~ sr~• ~•'ii- r.Pa* 1 1208, AWAL-E ~ ~'r.E go" o ~ n o ~'s'°_"~ • ' s~oa o~r Popm ~ ~ rraM srors _ • - s.; • ~l~ . 1 , C= C= C= - .ti . • rrpE 3 DRrwELC r WA 4yr 0038687 S'pd'~1YAL ~ EJiPtREB iVOV 19,1M J. PAUL R A MER & ASSOCIATES. INC. CIVIL ENGINEERS AfdD LAN❑ SLlRVEYORS N. 10115 NEWPC}RT HWY, SPOKANE, WASHINGTON 99248 (509) 467-5261 nate MARcrr 2a. 1994 • so• Project No. 933 10 scale LQT I BL+~CK C oraw~, GsM cheCked SMN VALLEY V1EW ESTATES Field B0c]h Sht ~ at ~ R:~ v ~ BU►LnrNG sEraacx ,anrD nRArwAOF eAseMENr LInrF , r32. vv • a 30. ClIRB DRDP " ~a• -STI{ELEVI+0 3. - • ~ 8~.89 8- N a E v 2 o .a }J ~ Z ~ ~ Trw~ a oRrw,~a O FRA~ ~ 4 ~r c • e 9IpiPPIYG S€TBaCiK LIN£ E7.E ~02~. 23' STA p.7" 2 ~ 3~, , , ' DRAINAGL~ ~ EASrEMENF c? in 3' FtlT11RE ACqU!Sl TlON ,ARFA ~ 101. TD' - - p I0' R/%+ DFDICATION VALLEY WAY - - - + m 09 rV'A~~'Fyr ~ ~4' ~G• ' r •d [~13~1881 ~ ~ ~ ~ _ (ED ~~grSTBg~~ ~ J+' . ry ~OA1AL ~~o V'~ Y t ExPIRE3 NvV 19, 1994 ~ SPOME cm4ty EwliqgEg J. Pie►UL RAMER & ASSOCIATES. INC. CNIL ENG1NEERS AhiD LAND SUR11EYOR5 N. 10115 NEWPGRT HW''Y., SPOKANE, WASHINGTON 99208 (509) 467-526I Dace• MARcH za, rss¢ . = 30~ Project No 933 10 Scalg; arawn- 6sm L QT I 8LOC K I che~ked: sMH 1J►4LLEY VIE1N E5TATES Fiefd Boak: SI'~!f ~ D~ ~ ~ • ; . . ~ ~ ~ - :!O' GRA]N'AGE £ASE11fEMT 9-} 13DADWAY ~ _ PJ' POND PQTTaM ~ G f f ~ TYPSE' 4 METAL FRAME ; GRATF~~~ '3,'1 ► ~ n ~ re r, er et~.n~s•.F''r ' b. 7 `~j'~ ~ EL~ a ~r~ C ~a oR po)ND - i ~ ,1 aorrak Awm sr,aEs J ~o~ - • . ~ ~ ' rrp,e 0 DRYw~LL ~ $o~ ~A44'~,1, . r ~ vt~ 003080 ~S,ONAL ~ E][PIRFS AkQV 119, 1904 }M J. PaUL RAIv1ER & ASSOCIATES. INC. CIVIL ENGiNEER5 AN❑ LAND 5L1RVE'fQRS N 10115 NEWPQRT HWY, SPDiCAhIE, WASHINGT9N 99208 (509) 467-5261 Date M,dRGN 28. 1934 ProjeCt No SLale f" • 30' LOT I G~LOCKI ~~3 C]rawn G5M CheCked 'MW aALLEY V IEW ESTATES FsefdSaOk Jrlt 2 {3f 2 ~ • E f TYPE A ORYiVELL 1Y! TYPE 4 METAL ~ FRAAfE AND GRA TE ELE1V 203023 srA r.as. RT 26, 1 ! ~ cvRS r~RaP ALIIRf1 ~sra r.1ses ~ ~I~~1~1~ J~ EL,EY 8031.82 ROADWA 1' t%-' . k 208' '.r"IYAtE y ~ . ELEV 2059.79 5' rs- BVlLDfIYi+ SETBACK LIME l7RA 5B EASrEIYEMY - , . ~ 3 NN ~ f ~ .m ~ _au ~ ,o a m > ~ ~ . ~ 30• a 0 - a 132.00. ~ 4il WA 0030887 ❑lST6'p-~ S`F'vA1AL . . - - ~ - . J, rLacPIREs Nov r Q. 1994 , J. PAul RaMER & ,assoCiATEs: iNc.. ~~~SCJ~~~ ~ CaVIL EN~INEEE't`i AT~ID LA~9b SL1Ri1E'YC)RS 1d 10115 NEWPQRT HWY, SFQKANE. WASHINGTC7N 99208 (549) 467-5261 aate 41'°RcH 28, 199¢ Praject No. 93310 5cake- I" a 30' LOT 7 BLaCK I [7rawn• GSM Cfsecked SMH VALLEY Y iEW ESTATES Field BoAk. ~J~1t I ~ G'FpDitON'$ 154751 - ~M J 1 F l ~ W ZE W 20' DRIJ INI1 PiF EI{.SE111ENf RQ11D MT!{ r ~ rS• PonP ecrrrQx ~ SOD C?!7 ' P01Vp 1 4'~ Bt?TTOM lifp SLDPzS rrPE 41 MErnL L ~ FRAAW s ro►UrE . •I 1 A • r ~ ~ J - CYV. SWALG Q i. ELCY 2029.79 0 0 0 „ : ~ . rnte , rrpi ,a ORrwFLL. ~ wns ~0039887 ~ .n GrsTa4 • • raAl A L S ~ ~F-1(PIHfB NaV 19, 1994 J. PAUL RAMER & ASSDCIATES. INC. C1VIt ENGINEERS AND LAND SLJRVEYQRS N. 10115 NEWPORT HWY, $POCRNE. WASHIh1GfC]N 99208 (509) 467-5241 ❑s4e MARCN 28. 1994 rs . ~o• F'roiect Na 933 10 ~81e LOT 7 BLOCK I Drawn GsM Checkea 5MH yALLEY VIEW ESfiA~~~ Fiskd Baok Shx 2 Of ~ SPC]KANE CDLINTY ENC3INEERS STOPRING 51GFT DISTANCEGALCULATIC]NS ❑aie: 19-.ku1-94 SAG VERTICAL CIJRVE Ret+iew 1 Reviewer; Parry Prcrject P1731 Rroject name: Vslley Vie►y Estatea Terrain• x Flat (Generel land slops 0% to 856) RalEing (Ganeral land slope > 8%to 7596) f Mauntairos (General I and slope > 1596) RE7AQ TYPE• lJrbanl5u burban 5erni - rursllRu ral Puhhc IPublic x L4ca1 Acoasa Lacal Acceas Arterial A[7T<100 Co9lector i DO a ADT>400 Secandary MaJor County ArteriW ADTE 4fl0 PfiSI8tB 400 C ADTC750 F_xtensfon ta 8 or fewer lets ADT> 750 Traot"X" Private Extensian tv B or fewer lats Tract'V Road name• Timbedane PVB statron° 0f75 Length vf Vertit a] aanie provided: 150 Design Spead. 30 Min Stvppmg 5ight Distance: 200 Entering slope (GI, -2.00 Exiting ^alvpe (G2, . 0.84 JG2-G1 J= R= 2.84 Ghec3s S>L: L1 = 2S -((400+3 55)1A} L1 ~ 12 6761 R$quirad minimum cvnre length' 12-6761 Check S<L• Curvs provided is AdequeRe L2 = A{5**2~I(400+3,5S) L2 = 103.273 ,ran,+7-11,vuS93 5PC?KANE COtJNf'Y ENG1NEER5 STaPPINCi SIGFifi [71STANCE CALCUU4TIDNS Dats: 19-,ki1-94 SftG VE6iTICAL CURVE Fkeaiew I ReViewer: Parry Prvject P1731 Project name. Valley View Estates Tercain, x Flst (General land slope 896 tn 8%) Ra1ling ([3enerd land slope > to 1596) f Mountains (Generakland slope a15%) RCIAQ dYPE. U rhan] Su hv►barr Se mf - ru ral f Rursi Publie Rubkic x Lvca! Acceas Locsl Access Arteriad AL7T< 100 Collectar 10DaAQTa400 Seoondary Major Gounty Arterial ACiT<4i30 Prnvata 400c A@7t75Q Ext$nsian to 8 or fewerlo#s AQT'750 Yract"X' Private Extens3pn ta B vr fewer aots Tract'x' Road name. Tmbedaraa RV! stsbcn: 8+38 Length vf vertical uanve provided: 50 Qesign 5peed• 30 Min. Stopping SigM Distsnce. 200 Erotering slope (G1, 96): 0.84 Exiting 5lope (G2, 2.00 1 G2-G1 I= A= 1.16 Chack S>L. L1 = 23 -{(40a+3 5S)IA} L1 = -548.2$ mots° usa min cunre length = 0 Reyuired minimurn nurve length• 0 Check S< L. Cutve prowded is Adequate L2 = A(S**2)1(400+3,55) L2 = 42.18ti+8 .n.-vMvnuS93 Fi1e name is 1731V3.COR FILE NAME: 1731V3.COR DATE: 7/19/1994 Z7ERTIGAL CURVE Station E1€:vation PI Station 112.50 PZ Eleuation 2031.55 Entry Grade -0.9000OW Exit Grade 0.80000%- Length 125.00 PC 0+50.00 2032.11 0+75 . (30 2031.93 1+00 , f}{} 2031.83 1+25.00 2431.$2 1+54.00 2431.89 PT 1+75 . 00 2032.05 Hagh/Law point is: 4,4. 1+16 .18 2031.81 1+27.25 21731.82~ 1+50. fl0 2D31. 89~ 1+30 . D0 2031.83 2+25 . 00 2032.62 VERTICAL CURVE Station E1EVation PI Station 212.50 PI Elevation 2032.35 Ent ry Grade 0. 8 0 000% Exit Grade -0.85000% Length 75.00 PC 1+75 . 0a 2032 . 05 1+80. a0 2032.09 1+90. 00 2032.15 2+00.00 2032.18~ 2+10 . n0 2032.20 ~ 2+20. C]CJ 2032.1 g~ 2+30. OQ 2032.16 2+40 , OQ 2032.11 PT 2+50,00 2032.43 High/Lpw pvint is: 2+11.36 2032.20 2+23. 28 2032 .18 SPOKRNE COllAfT1T ENGINEERS STOPPING SIGHT pl'STARICE CALCLlLATIONS ❑ate. 95-Ju1-94 5AG VERFfCAL CURVE Rsview#. 1 Reviewer; Parry Projact #:P1731 Rroject n$me: Vslley V'iew Estates Terrain • x Flat (GenerW land slope 096 to 896) Fiolling (Genersl land sfepe a8%tv 15%) f Muuntains {C3onatalland slope > 15%} R[}AD IYPE: UrbanlSu bur4an Semi -rurallFiu ral Pu61ic Puhlic x Loca1 Access Locel Access Artetial ADTe 104 Collector 100sA0T>4(]0 Secondary Major Caunty Arterial ADT<40[Y Prroate 400 <AQTc750 Ectensivn ta 8 or fewer lats AOT5750 Tract •X• Private EctensVan tQ 8 or fewer lats Trset `7(` Fioad neme: Alki PVI statian. t+ 125 Langth of vertical curve provided. 125 ❑esign 5peed- 30 Min. 5topping Sight Distanee: 200 Entenng slvpe {t31, -0.90 F.xiting Slope (G2, ' 0.80 I G2-G1 I= A= 1.7 Check S>L° L1 = 2S -{{4043f3.5S)fA} L1 F -247 06 nate• use min curae length = Ct Required rrFinimum airve length. a Check 5cL• Curvs prowded i$ Adsquate L2 = A(S*"2)1{400+3.55} L2 = $B.$1B2 wuwvzvnUga3 File nam2 is 1731v2.COR FILE NP,ME: 1731V2.CQR DATE: 7/19/1994 VER'I'ICAL CT.7RVE Statfan Elev3tion PI 5tation 638 . 00 PI Elevation 2031.55 Entry Grade 4.84000% Exit Grade 2. 00000% Length 50.00 PC 6+13.00 2031.34 £+20.00 2031.40 6+30.00 2431.52 6+40. 0fl 2031.65 6+50, 00 2031 .81 6+60.00 2031.99 PT 6+63 , 00 2032.05 6+38.00 2031.£2 6+18.00 2031.38 6+15.28 2031.36 5+14.72 2031.35 File namc is 1731V1 . GOR FILE NAN1E: 1731V1.COR DATE: 7J19J1994 VERTICAL CLTRVE Station Elevativn PI Statiori 75 . 00 PI Elevatican 2026.81 Entry Grade -2. flfl0Q0n Exit Grade 0.84000% Length 150.00 PC 0+00.00 2028.31 0+25.00 2027.$7 0+50 . DO 2027.55 0+75,00 2027.34 1+00. 00 2027.26 1+25.00 2027.29 PT 1+50.00 2027.44 High/Law p4int is : 1+05.63 2027.25 (}+60 . QQ 2027.45 0+90.00 2027.28 0+50. 40 2027 . 45 0+59.50 2027.45 5P0lCANE CC7UNT1' ENGINEERS STOPPING SIGH'T 015TA#VCE CALCULATI(7N5 Date• 19-.ki1-94 CREST VERTlCAL CL7RVE RaVfew a4~• 1 RaWlewer Pacry Prajeot #-P1731 Project name. Yalley Yiew Est$tes 'ferrain x Flat (C3eneral land slope 0R6 ta 8%) Rolling {Genera] land slope > 896 to 15%) f Maun3ains (GenetW 9and slope > 15%) RDAD 1YPE: Ur6an/5u 6urhan S$mi - rurellRu ral Publi❑ Puhlic x LocelAccess Local Access Arteri W A❑'F< 100 Collector 100a AE}T>400 Secondery Majar County Ar#arfal ADT<400 Privste 400a ADTa750 F,actension to B pr fewsrlsats A07>750 7rac!'.[' Prnaats Ectension to 8 or fewer lots Traet'X' Raad name. ,Afki PVI statian• 2+125 Length ofvertical CLt1AB pTUVId9d: 75 Dezign Spsed• 30 Min. 5tapping 5ight Distance: 200 Entering sloqe (G1, 080 Exiting Slaps {G2, 96}' -0 85 1 G2-G1 I _ A= 1.65 Chsck 8>L• L1 =2$-[13291A] L1 = -405.45 nate. uae mirr curve length Requirsd rninimum cxan+e length. 0 Check S<L. Curoe pevvided is Adaquate L2 = A(S*"2)11329 L2 = 49.6614 tieurc2.1/Aug93 ' i SIIBMITTAL CHECICLIST PROJECT # ~~~31 REVIEW # ~REV YEWER : DATE. 19 'T ly 94 PROJECT : kupi ~Il 04 bT~~~5 PR(]JECT S PQNSOR : lWo OrAmr 1144 " TEL # PROJECT BNGINEER (Road & Drainage Pl ans ) oma,HWZPJ TEL # PRQJBC'FT SURVEYDR (Plat) TEL # GMEFtAL ITSbSS YE5 NO N/A l 3. Tlae $100.00 fee for plat review has been paid to ' Spokane Caunty far this submittal 2. An agreement to pay fees has been submitted ta Development Engineering Services f 3. The fee agreement has Taeen signed by the praject crwner or a principal flf the developer's firm. If signed by an agent o~ the ownerf written authorizatiQn from the awner is attached to the fee agreement ,1r 4. Review fee accaunt is current (no invoices over 30 days outstanding) ~ 5. I have noted the plans in, plans out dates an the pink sheet in the file ~ 6. If the praject is a mobile home park, were the plans reviewed by Planni.ng? 7. 2cppies nf the pians were submitted r ; 8. 2copies af the calculations were submitted J 9. The plans are on 24" x 351" sheets GIIV'ER&i, ITM45 [cont' d) J 10. The calculations are bound together ~ 11. The plans and calculations are stamped and signed lay a Professianal Engineer ,I12. The developer has signed and appraved the road and drainage plans 13. Are there any confZicts between the proposed drainfields and any drainage ditches on the plat 14. Bowstring calculations by develraper are in tMe file fQr thiS review. 15. vertical curve stopping sighti distance calculatians by develaper are in file for this review 16. Hvri.zontal & vertical alignment sigh't da.stance ca].culations by develager are in file for this review 17. The engineer/develDper has pravided evidence ❑f coordinaCian with the electric utility servicing the project 18a. The fi1.e cc+ntains a Spokane County Sectivn Mag r 18b. The file contains a Spakane County Assessors's MaP ~ 18c. fihe file contains an aerial phvto of the groposed project area ~ 18d. The file eontains a corrected p~~liminary caf the final plat map 19. The groject is located in urban boundary area 20. The proj ect is lvcated in the Aqraifer Sens3tive Area , 21. The project plan name matches the plat name ~ 22. Is the entire project lacated outside of an ~ identified Flood Plain Area? i e ~ 23. Ys the entire prvj ect is located autsir3e af an ~ identifaed Starinwater Management Prvblem Area? CICI intv3 . 0]Aug93 Z, GFNERAL ITEMS ( CoAt' d) 24. List any design deviatimn requests and their status: 25. Locate the F'indings ans3 Order far the praject and 1 ist any rznrasual cargdit i.ons : 'uA4 - O` PIIPJ 2J7' .~2- kzd ie*w M'jk*~ -f-,JA4 ~ ~ ~ ~4 uaz . ~ ' 23. Backcheck of previvus cQmrnents completed 24. All previous commerats adequately addressed ck1iatu3.0,fAug93 3 FIELI] REVIFW 1. Field investigation trip made on 2. Repvrt completed and put inta file on 3. Are there any existing utilities on the praject site? (Overhead pawer, fire hydrants, etc. ) If yes, describe. 4. Are the drainage kaasins vn the graund the sanns as thase that are presented in the drainage report? 5. Are there any drainage channels directed taward property"? 5. Are there any drainage channels directing water through the property? 7. Do County raads cut off drainage as per drainage calculatians? 8. Yf there are culverts under county raads, does the flow g❑ away fram ❑r toward the project? 9. What kind of ground cQVer exists? 10. DesGribe any existing channe1 cvnditions: 11. Describe channel cross sectivn; 12. Existing Curb Type: ckla-eCV3 O,IAug93 4 RC7AD PIANS 1. List any raads that rnust be designed and constructed an the project. RfJAD REQ'D WIDTFi I]ESIGN MTA]f.AMAX. STOPPING SIGI3T MIN. CURVE NAME CLASS. PAVED RIW TERRAII+T SPEEL] GRADE I)ISTANCE HORIZ. VERT. . 4b -0,~~~ ~.-15 715 ¢0 2. Planning canditions require submission of a ~ landscape plan. (NQTE: usually associated with PL]D' s ) ~ 3. T have checked the landscape plan against the ~ road and starm drainage design and there are the follvwing conflicts: 4. The following road plans have a bearing an the design of roads fior this prvj ect and a copy is in the file: 5. I have sent an „R" value and percolation test request ta the Construction Sectian with soYls infarmation and a layaut ❑f the prcaj ect. "R" value test request to Designer (date). cklistv3.0/Aug53 5 ROAI3 PLANS {COI1+t' d} ~ 5. Ts the bench mark shvwn on the plans? ativning eqtiations sMvwn? . ~ 8. Is stationing correcC (south to north, west to east, reading left to right on the plan)? ~ 9. Are exisCing utilities shown an the plans (ar an inforrrnatian cvpy of the 11t3l1t fplanS submitted)? 10. Are proposed utilities shown on the plans (car an e informativn copy af the utility plans submitted)? --tZ• 11. Does the note "Any canflicting utiTitaes sha11 be relacated prior ta construction of rcaads or drainage facilities." aPPear ❑n the plans? 12. STREET WII`JENING 12a. Are curb design sheets provided far widening of existing streets? 12b. Daes the curb design confoam to Spokane Caunty Standards of section crass slope [Between 2% and 4.5%] ? 12c, Is there a street cross section shown for widening existing streets? 12d. I]aes the ~ropased new width match the width required in the Findings and C]rder? 12e. The cxoss-sectian shows. existing R/'W pragosed R/W future setaside 12f. 100' (min.) pavement taper i.nto praject is shown (1) There is adequaCe R,IW for the taper to extend frptn the new paving width tv existing gavement. {2} There is inadequate R/W for the tager to extend fram the new paving width to existing gavement; taper extends fram existing paving to R/W. 12g. Length vf pavement taper out vf project meets : YdS2 = 60 f ar design speeds s 40 mph WS for design speeds a 45 mph ~ f t. min. taper length appxaved by County ~ Traff ic Engirieer 12h. Transition frvm end of curb to existing paving is shawn (curb should nose dawn in 1211) ck1istv3,0,1RU993 6 ROAD PLANS ( cant' d) 12i. A 411-wide, white painted fagline at 12" frvm the edge of paving is indicated (tapers vr tangents) 12j. Are the curb grades above the caunty minimum of 0. 8°s? ~ 12k. If curb grades are belaw Q.$s, has a special nate been added which requires a licensed land surveyor ta verify that the curb fvrms are at the cvrrect plan grade priQr tv cvnstructivn? 13. NEW STREETS 13a. I7DeS the groposed al ignmerat meet SpDkane County Standards? vertical slopes uert ical curve l ength ~ hvriz[rntal curve radius i intersectian separation ~ 150' on local access4cdy M-f-I ~ i 300' on arterials 13b. The plans shvw the typical cross section frrr streets ~ 13c. Does the grvpvsed street width match the Findings anci Order? 13d. The crass-sectivn shvws: ~ existing R,IW prapvsed R/W future setaside . 13e. Dves the typical section an the plans meet ~ Spokane County Road Standards? cross slope is shown ~ cross slape is within standards ~"13EM To 9w QIcrass slope is correct when checked vn profile 1;K 13f. Curb type: s'hown proper type for the rvad c1assificatiQn meets Spokane County Road Standards far curbs withirn the public right-Qf-way cansistent with the curb type in the general area ~ 13g. Are the curb grades abave the county minimurrl of 4.8%~? ckliatv3.4]Au993 7 ROAn PI.ANS (Gant' d) ~13h. If curb grades are below 0.8%, has a special note been added which requares a licensed land surreyor ta verify that the curla €orms are at the correct plan grade privr to canstructian? 14. Has an "fR"' value test been performed for each SGil group? "[Gz 14a. The pavement section is adequate fvr the R-value and Traffic Index far the road type ~ 15. Locatiorns where water is intended t❑ flflw through an inlet mr curb cut are at the l.ow paint in vert ical curve / 16. S IGNAGE PTo,,,eN r/ 16a. Stop signs are shown for all streets wh.ich intersect an arteriarl (Check with Gaunty Traffic Erigi.neer if there is a question) 16b. Street name signs are shown at all intersecting streets ~ 16c. Is there a need for barriers at the end of dead end streets? 16d. Is there a need for other special signing? (Check with the County Traffic Engineer) ~ 17. Has the Fire District approved all prapvsed private road turnarflunds that are substandard according to auz Spakane Cvunty Road Standards? 18. C[7RS RETQRNS 18a. Are BCR, MCR, and ECR statiflnstelevatians on curb re turns shawn en the pl an? ~ in the prafile? 1~74631'44 ~A~e the curb return elevativns carrect? A 18c. Is there pasitive drainage from the raad intersection to the MCR? ~ 18d. Gurb return radius rneets County 5tandard aninimum of 201 (to back af curb for rol].ed/wedge curbs, to face for vertical curb faee types) 18e. SCR, MG'R, and ECR elevations are set to allaw drainage f rflm the centexlirae tv the cuxbline ckli st`Y3 . 0 /Aug93 8 . + ROAD PLANS (cant' d) ~ 18f. BCR, MCR, and ECR elevaticans are set s❑ that the sugerelevation hetween the intersection and the curbline is kranked pxogerly far right-hand turns into an3 aut of the intersection roads (the road slvpes from the intersection down to the f lowline) ~18f . $CR, MCR, and ECR Glezratidns at integSeCti.ans without stop sign contrvl are set sa that the superelevation between the intersection and Che curbline does not exceed: (ref. AASHTO) 1O0 {flat terrain} 8%- (rollang iterrain) 6%; (rnauntairaaus terrain) 1 19. CUL-nE-SACS 19a. The cul-de-sac grades (tap vf curb) meet craunty cul-de-sac standards (1% cnin.) 19b. The cul-de-sac curb is shvwn in profile ~ 20. INTERSECTIQNS 20a. Do the intersections meet the 2a grade requirements? ~ 20b. Wheelchair ramps are provided at intersections with sidewalks 20c. If there is a change o£ direction at the wheelchair ramps, are the ramps ariented s❑ that: a 5'x5" pad is provided at the top of the ramp? the required 5' x5' landing zone at the bottQm of the rannp is located i.nside of a line drawn 1' inside a line extended between tkre curb faces of the adj oinang street at in'terseCtions? any drainage structures are lacated ❑utside of the landing zone? 20d. The intersection hflrizQntal sight distance 50 analysis shows that sight triangle encrDachment 40 on private prvperty is 2' vr less 21. Is there a need for slope easements? 22. Is there a need for erosgon protection? ck1iatv3.0/Aug53 9 R{?Ati] PI.ANS [cOnt' d) 23. DRIVEWAYS 23a. Can a driveway slope ❑f 8s car less lae maintained betureen the edge vf pavement and the right-of- way? 23b. Can a driveway s3ope af 12W ❑r Zess be maintained between the ri.ght-of-way and the building setlaaek linc:? ckl i stV3 . 0]Nag93 10 PR~INAGE gLANS 1. Has a plat map been submitted which shvws lot dimensions, street widths, etc.? ' 2. Was a rnap with contours sp❑t ~ / . i ele-vatimns sulamitted to properly determine i drainage basans? 3. Were all existing drainage courses shown? 4. Were all the proposed drainage courses shawn? 5. Were Hydrologic calculations submitted for each basin? (Sowstring if area s10 acres, SCS TR-55 if area a 10 acres ) affsite (50-yr storm if uaidevelaped, 10-yr storm if developed) Dnsite (1t}-yr storm) Q for entire area Q for raads rnly INFILTRATION POND ~ Actual pond valume provided DET=IC7N P[}l+iD i Release to pipe system: i ~ contain 50-yr developed . i reiease at 50-yr pre-developed .v i ~ secondary overflow to pipe in -ccsntrol i structure fvr 100-yr developed i emergency overflow weir for 100-yr developed ~ sump priar t❑ outlet to contral structure ; 1' min. freeboard grassed sides/floQr for publicly-maintained i ponds sprinkler system far public1y-maintained ponds ; Retained an site, n❑ drywell: i cvntain 100-yr develaped emergency overflmw far 100-yr develvpaed i i i ~ ZOS SWALES 208 swale flaor area, volume requirements 208 swal.e f1oQr area prvvaded 208 swale vvlume provided cklaetv3 9/Aug93 1 ~ DItAINAGE PLANS (cont' d) a IINI3ERGRQUND GRAVEL GALLLRIES ~ ~ ~ 1. .3 voi.d r~tia for gravel free space volume a,s used i ~ i 2. Perc rate fram field test is used tQ develog i outflow rate i i 3. 10-yr event volume is contained entirely i undergraund i 4. 104-yr event volume is ccrntained by a cornbination i af undergraund storage and above grvund storage ~ up ta £3" depth i 5. 100-yr event volume is cantained by a cambination i af underground stmrage and above graund storage i exceeding 8" depth 5a, Sail mixture is specif ied for water degth in pond i exceeding g„ i i i 6. Entire gallery is wrapped in filter fabric coNVErANcE Cnnveyance - pipes ditches _ gutter flow depth is less than gutter height Backwater - pipes, ditch2s Headwater - culverts ~ Curb drop/cexrb inlets on grade (f ig 16), sump (f ig 17) Grates - sump (fig 15), cantinuous grade (f ig 16) Riprap - stone gradation, pad d3mensions 7. Sails type is "pre-approved" (Garrisan, etc.,} ~ for drywells without percolation tests ~ 8, T]ves the drainage repvrt identify the SCS soil graups f❑r the project area and for the gropoaed roaas t❑ be built in the project area? ; 9. The drainage design maintains sheet fZaw pattierns ~ in natural WaCercvurses i ~ ~ 10. The drainage design maintains existing sheet flvw gatterns withQut concentrating flvws i l c3clist+r3 S]/Aug93 DRAYNACE PIANS ( cont' d) 11. Does the entire glat lie vutside of designated ; 1(}(}-year Fl❑od Plain Area? ~ i i 12. Does the enti,re plat lie vuts ide af Zone "B°of ~ the designated Flood Plain Area? 13. Is the max. street gonding in any gart vf a Zane "H" less than 1'? 14. Does the plat contain appropriate language limiting the lowermost vpening in a structure 1vCated in aZane "B" to nat less trian Z' above the lowest ggad e1evativn? 15. The drainage concept is compatible with planning Commission recluirements. 16. The difference between present and futuxe flvws is retained on the site. ~ INLE'TS ~ 3. The inlets shown are within the stream flow. i' 2. Inlets are shown on the law side ❑f a road or at the low point af a vert ical Curve 3. Cuarb type inlets are shavan at sags and are properly sized. Perimeter daes not include the side of the grate against the curb face f a3.1 grate types 7. ~~rimeter is divided 3ay 2 far calculations where no curh apening (Type 1) is provided. Area = clear area =2 far Type 1 grates7 ~ 4. There are nv long curves with flat grades which pose a problem. e 5. The centerline road statians, vffseCs, and invert ! elevatians for all inlets are shown vn: e i / p3ans prvfile. ~ 6. Grate type is shawn on the plan and rs acceptable. (5pakane Cvunty Standard inlets i.n cvunty ROW, an private graperty vther inlet type may be specified) ('Type 1: D-2; Type 2: D-4) 7. A detail drawing of the grate/curb installation is shflwn rrn the plans and includes tYne 211 depressian and transitions as per caunty standards for grates that are located within cvunty RaW, or referenced tv SCRS std. detail D-S cklsetv3 afAug93 13 DRAINAGE PLANS (coat'd) ~ 8. A curb cut detail is shown on the plans with the f new caunty back drag with transitions and a 21" depressifln for curb cuts inside county RoW, or referenced to SGRS std. detail B-15 ~ 9. The plans shows accegtable curb cut details and grate details for installations whach lie within private road easements. I~ 10. If inlets are in a gravel xoad or a dirt ditch a f 6' x6` A.C. apron is shvwn around the inlet. ~ 11. Catch basin or special manhale details are shown ~ ar a standard drawing is specified. 1 12. Gritical low points in the drainage systern have ~ been provided with overflow easements. 2(} 8 S@fTALE SYSTSMS t` 1. Is the swa1e lvcated vutside a future set aside area? See Findings ana Order far where setasides are required. ~ 2. The swale bvttom and sides haue sad Qr grass turf $pecified. ~ 3. Swale side slapes do nat exceed a 3:1 side slQpe. (A 2;1 side slope is allcawed if swale depth is less than 12" deep. Shauld vnly be all.vwed where constrained by obstacles) I 4. If depth Qf water from bvttmm to drywell rim is between 6 and 8 inchesf soil mixture has been specified which meets Spokane Caunty Guidelines. p1 5. I]rell i s: Yo ated within 8 feet of the curb line, ax i i a maintenance access route and easement are i ~ Arovided 6. Drywell stationing is staggered fram the inlet by at least 4' ~ 7. Multiple drywells are located more than 30° {center-center} apart ckla stv3 . 0 /Aug93 14 DRAINAGE PIANS (COnt' d) 8. Sail type is apprapriate for drywells (perc rate ~ a 721" /Y'1r) ~ if not: i i _ 8a. averflvw from a swale at a low pQint will be ~ directed away from building pads by i an identified easement over impraved ground i an existing natural drainage channel cQVered by ~ an easement 1Aftj AW5 9. Drywe11 lacation dves not conflict with underground utilities. ! 10. Drywell tyge is specified. 11. nrywell grate type is specified (TYPe 3-std. ~ detail D-7) ~ 12. Dryvaell grate elevatian is: below the invert at the curb inlet between 611 and 6" abave the swale floor eleuation ~ 13. Does the note: "'Wrap the drywell with a filter fabric (.Amaco 4545 or equivalent)" aPpear vn tne plans? ~ 14. Swale flvvr elevatian is : specified ~ between 6" and S'T below the drywell grate ~ elevation at least 6" belaw the normal gutter flowline at the curb inlet for swale withaut a dryweil at ].east 8" below the normal gutter flflwline at the curb inlet for swale with a drywell ~ 15. Swale floor ~ dimensians are shcrwn ~ ' minimumr area is showra i ~ the area matches the require3 area frora the 208 calculativn for imperviaus areas. ~ 16. Easements for the 208. are shown on the drainage plans are shvwn fln the subdivision plat i f are af adequate size t❑ contain at least 51" ' freeboard alaove the max. water surface elevation i ~ i for the design starm ' are tied to the lat corners. 17. The side of the swale that is the furthest distance from the street should have atop of swale elevatian that is higher than the highest water level of the swale. ck1iatv3.6/Au953 15 DR&aINAGE PLANS I cvnt' d? 18. 'i°he invert at the curb inlet is at or above the max. raaGer surface elevation for the design storm ~ 19. Filter fabric is specified frar the gravel envelvpe around the drywell is specified between the drywell and the grave3 i , i ~ envelvpe installation specification is adequate, 20. Irrigation gl.an fc~r County-mainta3ned 208 swales r ~ Lot plans submitted on 208 LOT PLANS qdl 1. Lot pIans are reqnaired; submitted ran ~ 2. The 208 lot plans sh❑w: the lot number, bAock number, subdivisivn name, date drawn, scale, and north arrow. dimensivns ta lot cnrners drainage easemerats setback requirements swale tloor elevation XP.GN4 ~ swale floor dimensionsj rim elevation if drywells are present- curb cut statian, affset, inv+ert and,-'length) any drainage ditches , shows depth f r❑m the tcap of th-e curb``) j an attached cross section of the swale or ditch ~ 3. Lvt plans have been stam,ped by a professional engineer an all pages ~ 4. Lot plans are of sufficient scale to maximize the lflt size t❑ the 8 1/2" ~11'" paper size. [Drawings rnay be on plain whate paper] 5. 208 lot plans were approved Qn C]T,VERTS AND PIPE SYSTEMS 4 1. The raad culverts are at the law pvints of stream ' f1ow. 2. The headwater was caleulated far culvert entrances and as under 2 diameters for cu3verts under 18" in diameter and 1.5 diarneters for culverts greater than 18". 3. There is a miniFnum of 1211 of cvver for a1l culverts and starnt sewer pipes ck1i8Cv3.0(AUq93 16 DlaAINAG$ PLANS (cant' d) -j- 4. The designer has prflvided a letter from the pipe manufacturer certifying that the intended pipe is SLllt.c'1r]l~.' for CoVer ZESS tr2aTl 3' [PVC], 2' (CMP1 RCP), 1' {HDPE/AnS) ar the engineer has provided trench detai].s for upgrar3ed pipe bedding for these areas 5. The minimum velvcity withYn the gipe system is 4 feet pex second at design flaw in a'backwater canditian. (Note: The Cvunty Engineer may permit lawer uelvciCies) 6. The backwater calculations show a xninimum freeKrraard o£ 0.75 feet for each catch basin nr manhole. 7. "i"he rninimunn culvert and gipe slape is 0.5s and all pipes meet gr exceed this standard. 8. A11 angle points in the starm sewer 5y5tEiTl have suitable access such as a manhale for cleaning. 9. At locations where twca different pipe sizes enter the same marihale the 0.8 diameter goints of each p3pe are at trie same elevation. (Note: Exception all❑wed for drvp manholes) 10. Is there any downsizing vf pipes in a systems of piges that are 1811 in diameter and smaller. , 11. There as a downsizing of pipes in the amvunt ❑f 3" for a minimum of lflfl feet in a pipe system tYrat corrtains pipes that over 18" in diameter. 12. Al1 pipes in the pipe system are 12 11 and 3 arger as per Spvkane Caunty Standards; (10" pipe that is allowed for connectivn raf inlets ta catcYi basins Qr drywells, if the 1ength daes not exceed 44 LF and the velvcity is at least 4 fps). 13. A11 starm sewer pipes are located a minimum 4f 5 feet from a rear or side property xine and have adequate easements for maintenance. i 14. Ynlets on the same slope are located s❑ that the ~ maximum ►aidth of spread for the gutter flow does i not exceed 6' (from curb f ace for 'Iype ° A" or i "B", f rom back ❑f curb for Type "R„ ) 15. The plans and prafil'es show all culvert pipe types, stativns, affsets, lengths, and inverts ck1istv3.0/Fwg93 17 . . I)IdAINAGE FLANS (cont" d) l 16. Pipe materials meet county standards for systems that lie raithin county ROW. [Note; The type af pipe in private systems may be as specified by the design engineer] ~ 17, The culverts shown are pragerly stativned €rQm centerline statiotaing. 18. Does the drainage system canfiguration avaid canflicts with underground utilities? 19. Is there a need for energy dissipatian an any of the culvert outlets shown on the plans? zQ . Is there a need for xa.p rap ar4und the culvert Qutlet at any Qf the culverts as proposed ❑n the drainage plans. 21. The rig rap that is shown for the drainage plans is adequate for the Culverts where erosion is a concern and the engineer has submitted acceptable rip rap design calculatians. 22. P3pe anchors age shown for pipe grades greater than 15 t. 23. There are n❑ instances where water is trapped against a fill with no culvert shown. 24. Prafiles and crass sectians are shown on the plans for all prcaposed channels and ditches. 25. aitches with eroding velacities have a proper l.ining for erosion protection. 26. Water will properly flow fram an existing or proposed dlitch on ta the pavement as proposed on the drainage plans. 27. Where the ditch grnfile gasses fram cut tD fi1l the flow has been properly disposed ❑f . cklietv3 QfAug93 18 i , EAL2 y S 1. Adequate drainage easements a_re shvwn fvr maintenance af drainage ditches or gi,pe systems. 2. i'here are easements grvposed ar existing for natural channels whiGh cross the proper'ty. 3. An easement was provided where street drainage was diverted onto private property. 4. The perpetual mainCenance of private systems has properly been gravided far. 5. The maintenance of drainage systems within 5pokane County ROW has been properly provided for. 6. Apprapriate drainage language has been prDvider~ 2~ AtyA/" by the reviewing engineer tv the surveyor and]or engineer wha is involved with the platting work. i 7. Pre-existing drainage easements ora this parceZ ' are not affected lay this plat i J i ; J 8, Overflaw easements are prvvided frvm swales/ponds ~ lvcated in 1ow pvints MI S CELLANEC]U5 1. QC check vf review cvmpleted ( daC.e ) (init. ) ~ 2. Bond qaantities for drainage item calculated {r3ate) 4 inYt. } ~ 3. Vert ' c~al curve sight distance w❑rksheets done (datd) (init.) 4. V~rtic ~1 vpve geometry ~rQrksheets done l (dat ) {init,} ~ 5. Drainage vvlume worksheets done (date) (init.) 6. Stamped road myYars tQ Perteit Tech. (Sylvaa/Suzanne) 7. Stamped 1.❑t plans tv Admin. Asst. (Sandy) ckli~Cv3•40Aug93 19 , ~ , 3 S P C) A iv E ~ C] LF N'T Y OFFTCE oF THE CC]UNTY EIVCINEER ■ A DIVSSId11 DF THE IIsUBLIC WORKS DEFARTMENT Ronald C. Hormann, P E., Cvunty Engineer Denn9s M. Scatk, P.E.. Dirertnr 3uly 20, 1994 S teve Hars@n, F. E. Ramer & Associates , SUBJECT: P1731 - Valley Vierp Esta€es Lst ReView Gentlamen: A review of the road and drainage plans far this project has been accvmplished. Areas of cvncern tv us are xndicated in red vn the attached prinrs. Please make the cvrrectiQns and resubmit thern tv this vffice in order that the review prvicess rnay proceeci. W'hen the mlans are resubmitted. rnark all_ chanees an the revised nrint in color. In additivn, ple.ase prvvide an infvrnnativn copy of any utiliry pians far this proj'ect. If yQU haVe aI]y qlleStIa11S ab[lllt thiS ~evleW, please cvntact us at 456-3600. Thanic yau. Very truly yours, Rvnald C. Hvrmann, P. E. Spokane Caunty Engineer ~ Edw+arrd J. Parry, Tr., P.E. + P1an5 Review Engineer enels: Flans (Z set) Calculataors (1 copY) 208 Lot Plans (1 set) Cnmments (7 pages) cc./rvject ~tle reviawer (cornment.s an1Y) 1026 W. Broadsvay rtive. • Spakane. WA 99260-0170 •(SQg) 456-3600 FA.;C, (509} 324-3478 T'LDIJ {509} 324-3165 ~ONEvEENTS SPVKANE CDUNTY DNISIQIV 0F ENGINEERING 8c RQADS 1026 VV' BROADWAY, SPOI£ANE WA 99260-0710 PHDNE (509)456-3600 FAX (5(]9)324-347$ REVIEW 1 REVTEWER: Ed Parrv PROJECT p1731 I3ATE: 20 lulv 94 ~~OJIECT NAME: V31leV V 1eW E5taCe5 GEIVERAL 1. An informatian cogy of the utility plans is needed 2. Has this project been conrdsnated with the electric utilit}+ serving the site? 3. R-aaiue test resuits (rninimum of 1 per svil type) are needed PLANS 5heet 1 of 1 1. Tndicate start paint for Va11ey Way stativning 2. Cvvrdsnate raad name vuith plat map 3. I'ravide street name sign at intersectian with t11ki 4. Prvvide Fire District approval of turnaround on Alki 5. Confirm that interseetion on Valley 'VVay has adequate separatian frvm inaersection of VaIley Vv'ayJMvare ea the east 6. Tndicate glock # fvr lots 7. Prcavide "No Outlet" sign at L,ot III.oc 2, BIack 2 lvt line 8. Cvordinate rvad width dimension (18' tv curb) an plan view with rvad section detail (20' to back of curb) 9. i1abel symhvl as "Curb Drvp" 10. Tndicate curb drop lengths REVTEW C[~NIMEN'd`S Page 2 of 8 20 Ju1y 94 FRCkTECT # P1731 REYIEW # I 11. LT profile: a. Show profile as tap vf curb b. CQOrdinate prvfile etevations with raad sectian detail - top af curb = CL -.OS' 12. GL profile: Nn comm~nts at this time 13. R'T grofile: a. SFaaw prof ~e as top of curb b. Coordinate prvfile elevations with rQad section decail - tap vf curb = CL -.05' 14. Road sectivn a. Covrdinate crass-slvpe & TIC elevativrjs with profiIes b. Minimum pavemerit section is 2" ACP 1 12" Rack until R-Value tesrs are subrnitted, and pawernent sectinn is caiculated 15. S wale section a. lyQte nFQr S`w[Lles nAn & nBn n b. Floor and sides are tv be sodded c. Nvte that bank elevation = TIC + 0,2' d. Cvardinate dianensians tfl drywell CL with caIlouts; 8' maJC. frvm curb e. Note deprh fram TJC 16. Swale A plan detail a. Coordinate swaie flaar elevation (2052.22) with gutter elevation at curb drvp (20`"16.89) b. Coordinate swale flvvr elevation (2052.22) with drywe1l grate elevation (2025.72) c. Coordinate swale offset callaut with swaie section dimensions d. Coordinate easement limits with view an raad plan, and with Basin Map 17. Swale B glan detail a. Covrdinate swale flavr elevation (2052.22) with gutter elevation at curh drop (2026.89) h. Cvordinate swaIe flvvr elevation (2052.22) wirh drywell grate elevation (2025.72) c. Cavrdinate swale affset callouc with swale section dirazensivns d. Coardinate easement limits with Bassn Map 1$. Dryland seed mixlfertilizer: Thas shvuid be cvardinated with the lvcal offce vf either the Svil Conserwativn Seraice ar the Corservation District far seed type, fertlikzer mix & appIicatian rate R►EYEEW COMAMNTS Fage 3 af 8 20 July 94 FR[).TECT # P1931 REVEEixV # 1 5heet 2 af 2 1. A1ki Road l. Note MICR elevativns 2. Nate stazt paVinglend paving stations 3. Coordinate road names with Plat map 4. Nate curb drop length 5. L'T prvfile: Nvt needed if not built as part of this project fi. CL prvfiie: a. Coardinate 1+ 16 callout with placement vn prvfile b. Covrdinate 1+25 caIlaut with piacement on profle c. Note "S.I. Timberlane° at 1+75 7. RT prafile: a. Shvw as top of curb profile b. EIevatian indicated at 1 +27 CR. is actuaily the CL elevation on the vertical curve; FL _CL - 0.38' c. EIeVativn indieated at 2+23 CR is actually the CL elevativn on the verticai curve; FL = CL - 0.38' 8. Rvad sectivn: a. Cvardinate crass-siope & T1C elevativns with prvfiles b. Minimunn pavement section is 2" ACP 112" Rack until R-Vaiue tesrs are submitted, and pavement sectivn is calculated 9. Swaie section a. IVate "For swale „C" " b. Floor and sides are to be sadded c. Nvte that banic elevativn = TlC +0.2' d. Coardinate dimensierns to drywell CL with callauts; 8' max. frcam curb e. Nate depth from TJC REVIIEW C(7MNENT5 Page 4 vf $ 20 July 94 PR9.TECT # P1731 REVIIEVV # 1 ff. ~atlev vvay 1. Indicate MCR elevativns 2. Show sidewalk ramps 3. Sidewalk canfgurativm needs to comply with SCRS; typically wraps to CR or aplatf'vran axea is prflvided 4. Provide a manimurn 110' pauement taper inbound to tlae site {taper length -n 10 x width of added pavement} 5. Coordinate with the Cvunry Traffic Engineer vn the rrtinimum taper length tv he provided outbaund from the site 6. Coordinate road names with the plat map 7. Add note: "Fvr curh grades less than 0.8 % (0.008 ftlft), a Wash ington S tate-I icensed Prvfessxonal Land Surveyvr shall verify that the curb forrns are at the correct plan grade prior to placement of curb material," 8. Prvvide stativning tics 9. Coordinate I1.5' dimensian on existing pavement with 11.5' dimensian vn raad sectivn. Is the existing pavemerat really 11.5' wide? 143. Nofie "start taper" and "end taper" stations 11. Profile: a. Shaw as t4p of curb prafile b. Coordinate stativning vn spot callouts with plan & profile srationing; does stativning start at 1 +Qa ar 10+00? c. Provide curb grade calc sheets d. Indicat~ existing cvntours at new curb profile location REV'iEVV C[]NMENT5 Page 5 vf $ 20 July 94 PRO.lECT # P1731 REVTIEW # 1 12. Road sectian a. Caordinate 11.5' dimension vusth 11.5' dimension fvr existing pavernent on road plan vieva+ b. Indicate existing R'W c. Indicate future setaside d. Tyge B curbs are required on CoIIector Arterials e. Minimum pavement sectie+n is 2" ACP 112" Rock until R-value tests are submitted, and pavernent sectivn is calculated f. 20' paving width shauld be measured to toe o£ eurb CALCULATIONS l. Page nurrsbering wauld tre helpfui 2. Page 2 a. This project has mare than tvvv basins - look at yvur basin map b. Nvt all the raad runoff stays on the site; covrdinate with the road plans and the basin map. Need tv address w+hether or nvt any vffsite drainage facilities are adequate fat the flvw fram this site, both on Alki and Valley Way c. Need ta address florus from back af lvts to Friske Additivn on the east and tca the unpiatted tFaCC on khe WeSt d. Haw can fivws on Valley Way (west of A1k1) run uphill? Coordinate with the rvaci plans 3. Page 5: Basin Map a. ProWide contours on szte, and far envugh crff the site tv determine drainage patterns. U.S.G.S. tvpv is nvt adequate by itself fvr this szte b. Clear1y define the Tr . path, tv anciude length and slape of overland and channsl flaw cvmpanents c. Conrdinate basin limits with road plans & prvfiles. How can water run uphili vra the western pvrtion vf Valfey Way and on the eastern pvrtion of A1ki? d. Address vVerland flows onto Friske Additivn and onta unplatted tract e. Coordinate drainage easements with views on rvad plans f. Hvw are slQpes far each basin calculated? 4. Page b: a. Covrdinate swale floar elevaiivn (2052.22) with gutter elevatian at curb drop (2026,89) b. Coordina[e swaie flvvr elevativn {2052.22} with dryweli grate e1eVativn (2025.72) c. Cvvrdinate drywell vffset callout with swale sectivn dimensivns d. Coordinate swale configuration & identification with vierv on road plan, and with Basin 1VTap e. Indicate curb drop lengrh f. Cavrdinate drywell cailout (28' R'I') with plans (28' GT} REVTEW COMNEIYTS Page 6 vf ~ Julp 94 PRO.TECT # P1731 REV1OEVV # 1 5. Page 7: a. Coordinate swate flvar elevation (2052.22) vvith gutcer elevation at curb drop (2026.89) b. Coordinate swale flvvr elevation (2052.22) with dtyrvell grate elevation (2025.72) c, Coordinate drywell offset calivut with swale section dimensivns d. Coordinate swale canfigurativn $c identificatian ►ayith view on rpad p1an, and with Basin Map e. IP1diCate C111b dPop l@rigth 6. Page 8: a. Indicate curb drvp length b. Coordinate curb drop callout with plans c. Coordinate swa1e canfiguration with view on rvad plan, and with Basin Map 7. Page 9: a. Flaor and sades are to be sadded b. Note that barik elevativn _T1C + 0.2' c. Coordinate dimensions tv drywell CL with callouts; 8' max, from curb d. Nvte depth frvm `I'IC 8. Pages 13, 15, 17: Our analysis af the a~tual valume provided far both starm runoff and 20$ indicates that chese swales are aversized by aconsiderable faGtor; your analysis needs to consider that the total volume developed in the swale is limited by the vverflvw elewativn (at the curb drmp). Downsizirig Chese swales could prvvyde enough frvntage to ailow acGess to Timberlane Rvad, irstead of Valley Way. PrvVide calcs indicating the actuai volumes prQvided €or both stvrm runoff and 208 contrQl. 9. P'age 18: a. Indicate where these inlets are Ivcated (raad name, 5t3L1Dn, LT or RT) b. Indicate curb drQp lengths on pians e. Size inlets for greater af from bvwstring warksheets for total basin, ar for Q,,.,k from rvads an1 y, at T,, = 5mi nutes 2Q$ LOT PLANS Lot r, Blvrk I l. Coordinate swale flvor ele►rativn rwith curh drop elevation 2. Coordinate swale flQVr elevatian wi[h grate eieuation 3. Indicate curb drop iength 4. Coordinate swale floor cvnfiguration with rvad plans R,EYUE'W CCIMNIENTS Page 7 of 8 20 July 94 PRO.FECT # P1731 REYUEW # 1 5. Coordinate swale easement cvnf guration with road plans 6. Indicate depth frvm TIC Nvte banIt elevation = TIC + 0.2' 8. Coordinate dimensions to drywell CL with railouCs; mauc. frvm curb 9. Flvor and sides are tv be svdded li}. Coordinate dryweil callaut (2$' R"i') with plans (28' LT''j Lnt 7, Block 1 1. Indicate curb drvp length 2. Coordinate swale #lonr configuration vvith road plans 3. Coordinate swaie ea.sement cvnfiguratian with rvad plans 4. Indicate depth fram TIC 5. Note bank elevatian = TIC + 0.2' 6. Coordinate dimensions to drywelI CL with callouts; S' max. frvrn curb 7. Flvvr and sides are to be svdded Lot 1, Blvck 2 1. Coordinate swale flvor elevacion wit.h curb drvp elevativn 2. Coordinate swale tlvor eleuation with grate elevatian 3. Tndicate curb drop lengch 4. Coordinate swale flovr canfiguration with road plans 5. Coordinate swale easennent coniguratian with rvad plans 6. Indicate depth from TIC RIEVIEW COMNENTS Page 8 af 8 24 Juiy 94 Plti)JECT # P1731 REVIEW # 1 7. Nvte bank elevatian = TIC + 0.2' 8. Cvordinar,e dimensians to dryweli CL vvith callouts; 8' max. frvnn eurb 9. Floor and sides are tfl be svdded ~ h11ETHQJ (TEN 1'EAR STSJFN CE5fGN) PRf17ECT: VN_LEY VIEW ESTi Rl`E5 T1ME CFCONCENTRATION (rninutesJ 3R51N [3E9GN BAS1N BA551R11 REVIEI+VER: 1M-Fi 7c (vverland} Tc (gafiar) Arsas flF'dWB_L5 F'RCJPOSED QATE 9-22-94 oSngle (rype A) a Caouble (type B) ct= o is L2 = aas 0.28 090 m1C.) {SeBH1} 208 Zi = 9 03 1.80 0.15 .1~caic.) {see Hi } 1283 Li (A) = yao 72 = sa 0.00 ❑.aa '(raic.) (see ~-M) 026 NO) = 04 B= o 000 p.ao (min) 12.83 S(A) = 0.0039 n= 0018 0.00 000 2.08 5= 00084 OAO 000 023 Tc (A) _ 8.pa d= 0158 000 000 'ea 5ed(sq. 13760 7M1 R Comp 208, 577 srom 877 Li (S) = o Tc (9u) = a as 2.08 0.25 1 N (13) = o Tc(A+Ej) = 808 tQ 048 ~ f~} = o Q-L'I•A= 1.03 12.83 Q(esL) ~ 1.03 #2 #3 #4 #5 #8 #7 Fc (13) = ❑ D IrRenslty = 1.87 Tlme Intens6ty Q dev. V In V out 'Stcrage R= 0.66192 Inc. N1F = 8.4057 (SeC.) (in 11hr.) [cF5) (cu ft) (CU ft ) (esr it ) R= 00787 _ (#1-60) (p1'C-#3) (QuCF*#2] (#5 -#fi) V = 1.58 TC (tola€} = 7c (avwland) + Tc {guCier'} Tcl~qu) = 4 75 12.83 76980 1 97 0.94 974 - 76980 204 Tc G'fveff2f1 ( d) = cr*{La*Nys^o.5}^o.sl - 4[esQ = 1 oa C[ - d 1 5 5 300 318 1 52 812 300 312 L1 = Length of CIAw'1and FI[7YY+r Hddng = i5 s5 10 sflO 2.24 1.07 862 Bod 282 N =1riclon factr of ove'Fand ftaw (.4 fo' a►E'age grass CavW) 15 900 1 77 D 85 88$ 900 84 5= dVer8gB SlClpe Of OVBfiBf}d floN 20 aaaa 1 as 069 1014 izaca -aae Tc (gu°tta) = Length (ft)il/elocfty (Ftfssc.)/60 25 1500 A 21 ❑ 58 1020 1500 -48U 9= 8omm w{dtl1 pf gutW Q dltrh 30 1800 1 04 0.50 1028 1800 -774 Z1 = ifNer'Se Of crD5s &lape 4nB Df ditch 35 2100 091 0 44 1028 2100 -1072 Z2 = Inverse of amss slQpet+no Qf dilch db 2400 082 039 1044 2406 -7358 d= ctepth of flow i n gutter (estlrrfiate, [~'iHqC pgSlmaTg yfth Flary} 45 2700 074 035 1049 2700 -I651 Meff - d''B+d^2/2"(2I +Z2J sa aooo 0.68 0.33 1001 savo -1939 WeTtedperlmater =B*d+ (iJsln(aSn(11Z13) #I fs1n(atn(1/'Z2))) 55 3301} 0.84 4.31 1091 3300 -2209 hlyckauffe Fiadus = R= Araa/INetied f'erimetar SO 3800 0.81 0.29 1127 3600 -2473 Veladty = 1.486/n*F1^BER*s^5 85 3900 0.60 O.29 1195 3900 -2705 Flow = 1JelpClty"qrsa 70 4200 0 58 0.28 1238 4200 -2862 n= 0 A18 for asphalt 75 4500 056 027 1278 4500 -3224 5- Ipr3gi'huctrial Slqpg d gumr 8p 4800 0 53 0.25 1283 4800 P3517 85 5900 0 52 0 25 1334 5100 tr3788 80 5400 050 024 1354 5400 p4048 95 5700 0 49 0 23 1398 5700 -4302 100 6000 0 46 023 1438 BOOp -4582 3PD CA-GLIAI"dO1tG Rsqtlred grasay srrals pmd stiaage vdume = Imp"ous Arm x.5 in ,f 12 in.fit. = 573 Cu ft pfOAdBd: 577 Cu ft OKI Ql11FiEMEIVT5 -10 Y'ERR DES1G{+1 STQFIM Nkammum stQage requfred by Bowstring = 312 cu ft qrcxlded; a77 ru ft C]kCl Numher and type d Drywells F9equlred = 0 5ingle 1 DaubCe Q~uick 'TR-55 Ver sion. 5.46 5IN: F'aqe i F;et Lir n F"r equenr_ y: 50 year s TR--55 TABUL_AR HYDROGRAPH METHQD Ty+pe 11. Dxstribution G24 hr. flurat inrr ~torm? Y t_tl'~E~Cj: i19-`rr~ ,^~'3i'' Wat er she~d i ~e: i ~8N~r~l~l . MOP Hydr oqr ~ph f ale: C: \POhIDPACF'\FC'G029. H4'IJ 5o YEA1~ STORM Input Parameters Us~~ to Cc-mpLtte Hydrogr a}ah ;;<-:<: Subarea AREA C1V Tc Tt F'recipa t RuncRf f Ia/p_-_ f7escr apt aon (acres') chrsy fhr%"a ( an ) ~ C inr inputlused 1.94. 50 55.0 r 0. ;;o 43. 00 2, , 4 0 y o. o7 I.~8 .50 * 7rave1 t zme fr~.~m s~ibarea c~ut faI t'~ ~~~*m,~c-sate ~ratershed ~=ztt fi~a3. l p-Dint._.~.....~_w I SLibarea where Ltser spec i f fed interpol at ir,n between Ia/p tabl es. Total art-a = 194.50 acres or 0.3039 sq. mi F'eak d i scharge = _ F F r > Ctifl}PLlt@d' MiIdYf1L`c`ltia=iflS of IfRpLlt PaYclftletP.Y -""a ~°•`t'4:~ Inp►xt Va1 ues Rc-Linded VAIiAes Ia/p Subarea 'fc a~ Tt Tc ~ Tt Tnterpc,lated Ia/p Descr iptaon (hr ) (hr ) (hr ) thr a (YesI'No) Messages 0.'>5 o, 00 0.30 4;f. 00 No iw.omputed Ialp ;.5 * Travel time from SLibarea out fal I tin composate watershed out fa11 point. Q;_dA,=iz TR-55 Ver~ion: 5.46 5lN: F'age 2 Ret i..tr n Fr equency: 50 year s TF;-55 TABULAR HYDRQGRAF'H METFfCID Type iI. I7istributaon (24 hr. Duratir,n 5torm) FxecutE..aCI: 09-26--1994 10: 303i Wat er shed f i1 e: ~--1 C. :\F'LNDPAC~~\P0c}029 . MOP Hydrrgraph f i 1e: C':'1PONDPACK\F'C=0Ca29. HYd 50 YEAF' STC7RM iPr > Summary of 5ubarea Times to F~eaF; :A<: F'~ak Dxscharqe at `Cim~ to F~eal: at Ccemposi.~e Outfa11 Composite Out fal l Suiaarea kiw #s) (hrs) 6 12.3 Composite WatersFroed ~ 12.3 Os.iick nTP-55 Versaon: 5.46 S/N: F'aqe 3 Return Fr~quency: 50 years TR-55 TRBL1f_AF? HYDROGRAPH I"fETHOD Type II. Distrihutaon (24 hr. Dl_S Y at1 ol'i StC-Y Tf3 ) EY:ei_'uted: 09"""26""'1994 10: 36: ~."ri Water shed fi. le: r C: 0PpNDPACK\P00c729 MOP Hydr c{qr aph fi 1 e: C-',: \F'QNDF'AC.ftOF'0C3029. HY~ 50 YEAR STCJRM Ct,mprPEsxte Hydrogr~aph aummary (c fs) -----__e------------------_.....w_------------------____--...-_..___-_------------___-_- subarea 11.0 11.3 11,6 11.9 12.0 12.1 12.2 12.0 12o4 I7~scr iption ihr hr hr hr hr hr hr hr hr 0 t_) o c'a 0 1 ; 6 ~ TotaA [cfs) i x t i 0 c7 t7 1 3 6 6 Subarea 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 Deser ipt xon hr hr hr hr hr hr hr hr hr 5 4 3 .3 '.-r 2 i 2 2 2 Tc-tal (r= fs] 5 4 3 3 i 2 .c' G 2 SLibarea 14.0 14.3 14.6 15.0 15.5 16.0 16w s 17.0 17.5 Descr ipt xon Ftr hr hr hr hr hr hr hr hr 2 1 1 1 i 1 1 1 1 rota1 rcfs3 2 1 f 1 1 1 t 1 l 5ubar e a 1 e. 0 19.0 20.0 22.0 26.0 Descr ipt a,on hr hr hr hr hr -----------_r___-___--_____------------------_____...mW__...-----......--______-----_--__ 7. 1 f 1 C) Trttal Ecfs► 1 1 1 1 C) Quic4° TR-55 Versiona 5.46 S1N: Pagt- 4 F?eturn FreqL3ency= 50 yre~.~rs TR°-55 1"A1F3llf_Ar' HY17f<'C]GI?RF="H METHOD Type Ii. Dastratautic-rt (24 hr. IDua°atiun ~torm) Exea iited: 09-26-1 ~94 10: 3G: 32 Water shed f i le: rw : \PONDPAi--K\Fo(:)()29 . MOP Hy~rc~qr apFa f i1 e: > C: \F'[]IVDF'AGF:'1 F'C)CaCri°9. HYD 50 YEAR STORM Tirne Flow Txme F1ow Chrs) (c fs) (hrs) ((:fs) T1.0 0 14.8 1 11.1 Ca 14.9 f, 11.2 0 15.0 1. 11.3 0 1,e~'i. f. 11.4 15.2 1 11.5 C) 15.3 1 11.6 sa 15.4 E 11.7 C) 15.5 1 ii.a i) 15.6 1 11.9 i) 15.7 1 12.0 c=~ 15.$ 1 12.1 1 15.~'~ 1 12.2 ? 16.0 A 12.3 ~ 1611 1 12.4 O 16.2 1 1-2.5 5 16....~ 1 12.6 4 16.4 1 12.7 3 16. S 1 12.8 u 16.6 1 1:'.9 2 16.7 1 13.0 2 1G.e f 13.1 2 16.9 1 133. 2 2 17.C) 1 13.3 2 17.1 1 13.4 2 17a2 1 13.5 17.3 1 13.6 2 17.4 1 13.7 2 17.5 1 13.2 2 17.6 1 1i.~"~ i 17.7 1 14.t1 2 17.8 1 14.1 2 17.9 1 14.2 1 18. C) 1 14.3 f. 18.1. 3 14.4 1 18,2 1 14.5 1 18.3 f 14.6 1 18.4 f 14.7 1 18.5 1 Q±atcE: TP-°55 VersYon: 5.46 SI'N: Pape 5 F'etLtrn Frequent:,y: 50 yearc TP-- a5 7ABUl...AP HYDF',OF.aRAF'H MFTHC?13 Type I I. I3 i~tri. bi.rt i c+n (24 hr. Tlurat ion Storm) EYeC I.Ated: 09.^'26'.' 19`34 10: ,.76. 3L Watershed f x 1 e: ; C: 'e P0NDPACKAPc=r0029 . MOF° Hydrvgraph f ale: : C.: \PClfV3~3i'iRC.K'\P{1Ci029. H'Y17 5t) YF_AP S1°ORM Txme F lc-w Time F3.c-w (hrs) Ccfs7 (hrs) Cc fs) 18.6 t 22.4 I 18 . 7 22.5 1 18.8 1 22.6 1 1e. J 1 22.7 i t9. t7 I 22.e 1 19.1 1 ~2. 9 1 1 'El. 2 ! 23.0 1 19.3 1 23.1 i 19.4 1 23.2 I 3.9.5 1 23.3 f 19.6 1 23s 4 t 19.7 J 23.5 1 19. C] t 23.6 1 19.9 1 23.7 a 20.0 1 23.8 1 i+J a 1 1 23.9 1 :i[) . 2 1 24. i 1 Cr 20.3 1 24.1 0 . 20.4 i ?4.2 i] .G. 0Y5 1 24.3 Ly 20.6 1 24.4 0 20.7 1 24.5 Cr 20.6 I 24.6 C) 20.9 i 24.7 C) 21.0 f. 24. E3 i ~ 21.1 b. 24.9 21.2 1 25.0 ts 21.3 1 25.1 0 21.4 1 :5.2 0 21.5 1 25.3 C1 21.6 1 25.4 0 21.7 1 25.5 Cp 21.8 1 25.6 0 21.9 1 25.7 C) 22.0 ~ 23.8 Q:f 22.1 1 25.9 C) 22.2 1 22.3 1 CIRCULAR CHANNEL AIdALYSIS CRITICAL DEPTH CQMPUTATION Flaw Rate (cubic feet per second) 7 Manning's Rcsughness Caefficient (n-value) ,024 Channel Diameter (feet) 1.5 RESULTS GRITICAL DEPTH (FEET) 1.02 Critical Slope (feet per faat) 0.0231 Flow Velocity {feet per secand) 5.45 Fraude Num}aer 1.000 Velocity Head (feet) 0.46 Energy Head (feet) 1.48 Crass-Sectianal Area vf Flow (square feet) 1.29 Top Width af Flow (feet) 1.44 Press Return to repeat this vperation, or Esc ta return to Main Menu CIRCULAR CHANNEL ANA,LYSIS N4RMAL DEPTH CC]MPUTATION Flow Rate (cubic feet per second) 7 Channel Bottom Slape (feet per favt) .Of Manning's Roughness Caefficient (n-dalue) .424 Channel Diameter (feet) 1.5 REST,7LTS NORMAL ❑EPTH (FEET) 0.75 Flow Velocity (feet per second) 7.90 F'rvude Numher 1.811 Uelocity Head (feet) 0.97 Energy Head [ feet ] 1.72 Cross-Sectional Area af Flow (square feet) 0.89 Tap Width af Flow (feet) 1.50 Press Return to repeat this operativn, or Esc to return to Main Menu INLET N[MBER 1C LENGTH 3.0 STATION 1+16. T9TAL PEAK DISCHARGE = 0.27 (cfs) GLTTTER SLOPE = 0.0084 FT J' FT PAVEMENT CItOSS SL(]PE = 0.0200 FT/FT SPREAD W W/T SW SWrSX Eo a S°W 5E 4.58 1.5 0.33 0.0200 1.0 0.65 2.0 0.111 0.093 XXXXXXXXXX CLfiRB I1dLET QN A GQNTINUDUS GRADE XXXXXXXXXX REQCTIREL? LENG'FH ( f t) = 4.1 EFFI CY ENCY= 0.90 CFS INTERCEPTEQ= 0.24 CF5 CARRYdVER= 0.03 _ _ _.__t.......... INLET NUMBER 1C LENGTT3 4.0 STATION 1+15 TOTAL PEAK DISCHARGE = 0.27 (cfs) GUTTER 5L❑PE W0.0084 FT/FT PAVEMEHT CROSS SLOPE = 0.0200 FT/FT SFRE,AD 'W inl`tT SW SW/SX Eo a S' W SE 4.58 1.5 0.33 0.0200 1.0 0.65 2.0 0.111 0.093 XXXXXXxXXX CLTRB INLET D1V NCQNTIN[7(]US GRADE XXXXliXXXXX REQUIREp LENGTH (ft) = 4.1 EFFICIENCY= 1.00 CFS INTERCEpTEI]= 0.27 CFS CARRYQVER= 0❑ ---------------------~_v_~_v_..,v____--------------------___------------------- INLET NUMBER 1C LENGTH 3.5 STATION 1+16 TOTAL PEAK DISCHARGE = 0.27 (Cfs) G[]TTER SLOPE = 0.0084 FT/ FT PAVEI4IENT GROSS SLOPE 0.0200 FT,f FT SPREAD W W/'a' Sw SW/5X E❑ a S' W SE 4.58 1.5 0.33 0.02E70 1.4 0.65 2.0 0.111 0.093 XXXXXXXXXX CURB INLET ON ACQNTINUQ[1S GFdAL7E XXX~XXXXXX REQi]IRET3 LEIVGTH (ft) = 4.1 EFFICIENCY= 0.97 CF5 IPITERCEPTED= 0.26 CFS CARRYaVER= 0.01 TNLET N[]NI$ER 1C LENGTH 1.0 STATION 1+16 TOTAL PEAK DISCHARGE = 0.27 (cfs) GUTTER SLOPE _0.0084 FT1FT PAVEMENT CR45S SLOPE _0.0200 FT/FT sPREAD w wtT sw swtSX Eo a s►w sE 4.58 1.5 0.33 0.0200 1.0 0.65 2.0 0.111 0,093 XXXXXXXXXX CURB INLET ON A CONTINUOUS GRADE XXXXXXXXXX REQUIRED LENGTH (ft) = 4.1 EFFICIENCY= 0.39 CFS INTERCEPTED= 0.11 CFS CARRYQVER= 0.15 Press any key ta continue INLET NUMBER 1C LENGTH 2.0 STATYQN 1+16 TDTAL PEAK DISCHARGE ~ 0.27 (cfs) GLTTTER SLOFE =0. 0084 FT/FT PAVIIMENT CROSS SLOPE = 0.0200 FTAFT SFREAD w WiT SW SW/5X Eo a S'W SE 4.58 1.5 0.33 0.0200 1.0 0.65 2.0 0.111 0.093 XXXXX?fXXXX CURH INL,ET ClN A C[]N'I'INUOUS GRADE XXXXXXXXXX REQUIRED LENGTH (ft) = 4,1 EFFICIEIdCY- 0.70 CFS IN'T'ERCEPTED= 0.19 CFS CARRYC3VER= 0.08 Press any key tv cvn+tinue FNLET NUMHER lA LENGTH 3.8 STATION 3f$5 TOTAL PEAK DYSCHARGE = 0.67 (ef5) GUTTER SLOPE = 4.0084 FT1FT PAVEMENT CRO55 SLQPE = 0.0200 FT/FT spREAD w wfT sw sw,sx Eo a s'w SE 6.44 1.5 0.23 0.0200 1.0 4.51 2,0 0.111 0.076 XXXXXXXxXK CURS INLET ON A CDNTINUQUS GRADE XXXXXXXXxX REQUIRED LENGTH {ft} = 6.8 EFFICIENCY= 0,77 CFS TNTERCEPTEd= 0.51 CFS CARRYOVER= 0.16 Press any key ta continue FRflJECT P 1731 HEC12 Version: V2.91 Run Date: ❑9-23-1994 INLET NUMBER 1A LENG'Y'H 3.8 STATI[?N 3+85 ~ TvTAL PEAK DTSCI-dARGE ~ 0.67 (cfs) GUTTER SLpPE = 0.0084 FI"/FT PAVEMENT CFtD55 SLC?PE = 0.0200 FTjF'T 5F'READ W WfT SW SW1SX Eo a S'IW SE 6.44 1.5 0.23 0.0200 1.0 0.51 2.0 0.111 0.076 XXXXXXXXXX CCTRB INLET +(3N A CC?NTINiIOUS GRADE XXXXXXXXXlC REQUIRED LENGTH {ft} - 6.8 EFFICIEIdCY= 0.77 CFS INTERCEPTEI}= 0.51 CFS CARRYLlVER= 0.16 INLET N'UMSER 2P, LENG"I`N 2.8 STp,"['TON 2+25 TaTAL PEAK DISCHARGE = 0.60 (cfs) GUTTER SLt7PE = 0.0084 F'I"/FT PAVEMENT CRC7S5 SLOPE _ 0.0200 FT fFT SFREAI] 'W W f T SW SW] 5x Eo a S' W 5E 6.18 1.5 0.24 0.0200 1.0 0.52 2.0 0.111 0.078 ]fJfXXXXXXXX CLTRS INLET QN A CpNTIN[]OUS GRADE XXXXXXXXXX REQiJIRED LENGTH (ft) _ 6.4 EFFICIEIdCY= 0.64 CFS INTERCEPTED= 0.38 CFS CARRYaV'ER= 0.22 INLET NUM$ER 3A LENGTH 2.8 STATION 1+06 T4TAL PEAK DISCHARGE = 1.31 {Cfs} GUTTER SLOPE = 0.0084 FTfFT PAVEMENT CRO55 SLOPE _0.0200 FT/FT SPREAD AT A SLOPE OF .00$ (ft./ft.) AN❑ 1.31 (Cfs) IS 8.28 (ft.) XXXKXXXXXX CURB INLET IN A S[JMP XXXXXXXXXX P EFFEC. LENG'I'H (ft) = 5.53 H (ft) = 0.500 DEPTH aF wATER (ft) _ 0,22 sPREAD (ft) = 10.98 Press any key t❑ aontinue T__--------_--_------_~-_---- IN]GET NUMBER 3A LE1dGTIi 2.8 S'I'ATION 1+06 TaTAL PEAR ❑ISCHARGE _ 1,31 {cfs} GUTTER SLOPE _0,0084 FT/F'T PAVEMEN'I` CROSS SLOPE _ 0.0200 F"'I'/FT s~READ AT A SLOPE ❑F .oaa (ft./ft.) ANa 1.31 (cfs) zs 8.28 (ft.) XXX.fXXXXXX CURB INLET IAI A SCTMP 3CXX]ilCXXXXX P EFFEC. LENG'TH (ft) ~ 5.53 H (ft) = 0.500 ❑EPTH (]F WATER (f t ) = 0.22 SPREAU (f t ) = 10.98 BOhNS79h1G 11►ETHOD (TEN'YEM 57CJFM DESEGV) PAQIEC;T; VW_LEY ViEIN E51`AE5 T1ilAE OF CONLENTRATION [minutes) DETEN-11OlV 8AS1N DES.'.aRl 8ASIN: BAS1N FJ REVIEWER• wHH rc (werland) re (guua-) Ireas C. NUTA13ER OF DRYV1iB-L5 PRQPOSED EJfilE. 9-26-94 0 5ingle (rype A) t Double Oype F3) Ct = o is L2 = iao 024 090 Total Area ([aIc )(see Hy) 2.42 Z1 = r o.iG o so Tlme rf CortC, (calC ) (se9 1-11) 18,67 Li (A) = 385 72 = 50 1.38 0.15 Compoafte ^C' (calc.) (see M) 037 NV9 = 04 B= o 039 090 TitT1B d CtXTTC. ((Illfl) 1138 $(A) _ 00033 n= 0016 030 0,15 Area (AQes) 242 s= 0.008 000 0 00 C FeciDr 0,37 Tc (A) _ 1737 d= a ia 000 000 Irn perviousArea (sq ft) 14160 Tolat A Gomp'C Vcfume Prwfcied 208: 735 Sh7f7n' 1360 L1 (EI) = 0 TC (9u) = 1 31 2 42 0.37 Oufflow (cfs) t N(B) = o Tc(Ak8) = 17,37 Area * C' Fa= 090 5(B) = o q=C'I*A= 1.38 = = = = = = = ___er___________________ TC(M,) = 18.87 Q(esty= 1.37 #1 #2 #3 #A #5 #8 #7 TC (B) = o Iflt@fisfty = 1 53 `fime Tima Iritensliy 0 dev, V In V out S[o'age q~ 0.8262 Inr- Inc WP = 9.2584 (min ) (sec y [n {hr ) (cfs) (cu. tt.) (cu. it.) (cu, ft.) R v m.assa (#1 *60) WCk#3l (OuGitr#2) (#5-46) V ~ 1.88 Tc {4nlaIJ ~'fc (cnwland) + Tc (gi'ttg') TG(9u) ~ 1 31 11 38 e82 so 2.11 1.89 1729 68280 1046 Tc {wEffiando @ cr(L1*NVS ^os)^o.s) a[ssg = i 37 Ct = 0 15 5 300 318 2 85 1145 300 845 L1 = Le°tgih Cf Ckerland Fl[7+Y Hddng ~ 4 83 14 800 2 24 2.01 1813 80a 1013 N= fricticn Faclur of ovErland Flow (A FQ average grass mve') 15 800 1 77 1.58 1794 86d 884 5= ava age slope ef wirlarid fla+r 20 1200 j as 1.30 i ess 1200 ass Tc (gutta°) = Length (°t )/Velacl[yr (ftJsac.)I&] 25 1500 121 1.08 1877 1500 377 B= Bottom rvfdth of g" rs ditch 30 1800 1 04 0.93 1892 1800 92 Z1 = IrNers9 of o'osS 51op9 one of rSlich 35 2100 091 0.81 1800 2100 -200 Z2 = fnVBr59 4f crOSS 510pe SVa+d Of [1Gich 40 aaoa 082 0.73 1933 2400 -467 d= depth of florrvin gutter- {esnrnata, chsdk esumate with Flow} 45 2700 0.74 Q.BB 1543 2700 -757 _ Afea-=-L3'`3#d~2R*(ZI #Z2) - ~ sQ 3000 068 0.81 1888 3040 -1032 WeMd perimetBr = B*d+(ifsln(atn(1/Zi))+ 1 /sin(api(1fZ2))) 55 3300 064 0.57 2024 3300 -1278 HydratlflC Flacll1S = R= AfeB/WSttOd PerIffleter B[Y 3800 061 6.55 2093 3800 -1507 VBIOCify = 1.488/f1}R'° .687*5-5 66 3800 060 ❑ 54 2220 3900 -1680 FlOw = VBi DClly'`RfEa 70 4240 ❑ S9 U.52 2362 4200 -1898 n= aA1 Bfor aSpP'aI t 75 4500 056 0.50 2373 4500 -2127 5= Ipflgitilai{'iSl SICipBOF g" BD 4800 053 0 47 2388 4800 -2412 85 5100 0 52 047 2483 5100 -2817 90 5400 050 0 45 2522 5400 -2878 95 5700 0 48 0 44 2608 5700 -3097 100 8006 0413 0 43 2679 6000 - 3321 ---°°--e---------------•-----.__ _ _ DFIRINACE FUF+D CA-CLLATIQ]VS Rsqulred gassy swaf e pmd st3rage vdume = Imparvinus Area x.6 In.1 12 in /Ft = 590 cu, Yt prcwided: 735 cu, fC pCI DFiYWEL-L FEQUiRBAENTS - t(➢ YEAR DE5IGN STOfiAA Na)dmvm sicrage requlred 6y Borvstring = iOaB cu ft pravlded: 1380 cu, FL Q{! 119umher and'rype e6 Drywells Raqufred = 0 9ngfa 1Dtiub1e L, REVEEM■ ~ONPdE1r 1 S sPoxArvE couNTY DiVT5ION {)F ENGINEER.IAiG & ROADS 1026 W BRC3ADWAY, SPDKANE WA 99260-0710 PHONE (509)456-3600 FAX (509)324-3478 REVIEW ~ REti'IEWER: F,d Parrv PRC3JECT P1731 T)ATE: 20 ]ulv 94 PRC3TECT NANIE: Va11eV View Estates {GENERAL '4 i. An infarmativn copy of the utility plans is needei w41&tt-gs►~-rP- P&&q l- °~2 Has this project been coordinated with the electric utiiity serving the sit.e? rE5 ~ 3. R-value test results (mir~imum of 1 per soil type) are needed w~ d a~~ ~n► `-f~Fa S t'1~[j 779-9~ a~ e5 PLAN5 ShCEt 1 Uf 1 '12'tvordinate road name with plat map 3~rovide street name sign at intersection with Alki oop 4. Prowide Fire Qistrict approval of turnaround on Alki 5. Confirm that intersection on Valley Way ha.s adequate separation from intersection of Valley WaylMovre tv the east 7 .,,~fi. Indicate Blv+ck # for Iots ~f,.~P -7. Provide "Na Outlet" sign at Lot 1iLcat Z, BIock 2 lat 1ine V)01". Covrdinate soad width dimersian (18' tv curb) on plan view with road section deta,il (20' tv back af curb) V P. [abel sytnbul as "Curb Drvp" 40. Tndicate curb drvp lengihs REVIEW CCINIl►vENTS Page 2 af 8 20 July 94 PROJECT # P1731 • REVIEW # 1 11. LT profile: 1 a. Shvw profile as tap of curb Nb. Gvordinate profile elevations va+ith raad sect'ron detail - tvp vf curb = CL -.05' 12. CL profile: Nn camments at this time 13. RT prrafile: a. Shaw profile as top of curb ~b. Coordinate prvfile eleVations vs+ith road section detail - tap of curb = CL -.05' 14. Road sectivn ~ a. Cavrdinate cross-slope &TIC eleVatians with profles b. Minimurte pavertaent sectivn is 2" ACP 1 12" Rock until R-vaiue tests are submitted, and pauement sectian is calculated 15. Swale sectivn `,a. Nvte "For swales "A" & "8" " \b. Flovr and sides are to be sodded ~`c. Note that barik elevation = TOC +0.2' 'd. Coordinate dimensions to drywell CL with callvuts; maac, frvm curb '-,e. Nvte depth frvm T'IC 16. Swale A plan detail ~ a. Cvvrdinate swale flvor elevation (2052.22) with gutter elevation at curb drvp (2026.89) °b. Cvardinate swale flvvr elevation (2052.22) with drywell grate elevation {2025.72} `=c. Coardinate swale offset callout with swale sectivn dimensians ~d. Coordinate easement limits with view an road plan, and with Basin Map 17. Swale B plan detail '-,a. Ccordinate swale flvvr elevation (2052.22) with gutter elevation at eurb drop (2026.89) b. Cvordinate swale floor elevation (2052.22) with drywell grate elevation (2025.72) ~ c. Cvordinate swale vffset callaut with swale section dimensians ~'Nd. Goordinate easement lirnits with gasin Map ~ 18. Dryland seed mixffertilizer: 'I'his shvuld be caordinated with the lvr,al office af either the 5oi1 Conservatian Service or the Canser►ration Uistrict for seed type, fertilizer anix & applicativn rate REVIEW C4MNMNTS Page 3 of 8 20 July 94 PIt(?JECT # P1731 REVIEW # 1 aheet 2 af 2 1. AlM [toad ~ I. Note 1VICR eler+ations \2. Note start pavinglend paving stations \3. Cvvrdinate road names with Flat map ~ 4. Note curb drop length `5. LT prafile: Not needeci Qf nat built as part of this project b. CL prof le: a. Goardinate 1+ 16 callout with placement vn profile b. Goardinate 1+25 callout wzth plaretnent vn prof le 1+ 1 z, S c. Nvte "S.I. 'i'imberlane" at 1 +75 7. RT profiPe: N a. Show as tvp vf curb profile -i b. Elevatiari indir,ated at 1+27 CR is actually the CL elevatian vn the vertical curve; FL = CL - 0,38' -4 c. L1eVation indicated at 2+23 CR is actually the CL elevation on the verticaP crarwe; FL = CL - 0.38' 8. Ruad section: '4 a. Cvordinate cross-slope & TIC elevativns with profiles -4 b. Minimum pavement sectivn is 2" ACP 1 12" Rvck until R-value tests are submitted, and pavernent section is calculated 9. Swale se.ction ~ a. 1Vote "For ~~~le nCn n ~ b. Floor and sides are tv he sodded '-j c. Nvte that bank elevativn = TIC + 0.2' d. Coordinate dimensioris tv drywell CL v4rith callvuts; S' rnax. from curb -4 e. Note deptn Frvm TIC REVIEW CQNIlVTENTS Page 4 vf 8 24 July 94 PRO.IECT # P1731 REVIIEW # 1 H. Valley Way `"v 1. Tndicate MCR elevations 2. Show sidewalk ramps 3. Sidewalk cflnfgurativn needs to cvmply with SCRS; typically vvraps to CR vr a platfurnn area is pravided 4. Provide a minin-bum, 110' paVement tager inbound to the site (taper length = 10 x w'rdth of added pavement) S. Caordinate with the County Traffic Engineer an the minimum taper length to be provided outbvund from the site `w 6. Cvmrdinate road names with the P1at map -4 7. Add nvte: "For curb grades less than 0.8% (0.008 ftlft), a Washingtvn State-licensed Prafessional L,and Surveyor shall derify that the curb forms are at the carreck plan grade prior to plac+ement of curb material. " 8. Provide stationing tics 9. Cnordinate 11.5' dimensivn on existing pavement with 11.5' dimersion ,ora ruad sectivn. Ts the existing pavement really 1 1.5' wide? 10. IVote "start taper° and °end taper" stativrs 11. Prof le: ',~J a. Shorv as tvp vf curb prof 1e -4 b. Coordinate statianing vn spat ca1lvuts with plan & profile stativning; does stativning start at 1 +0O or 10+00? v c. ProVide curb grade calc sheets -t d. Indicate existing contours at new curb profile lvcation ItEVEEW C(7NMENTS Page S af $ 20 J'uly 94 PRQJECT # P1731 REVIEW # 1 , 12. Raad sectivn J a. Coordinate 11.5' dimenslon with 11,5' dimensian for existing pavement on road plan view -q b. Indicate existing RlW y c. Indicate future setas'rde --j d. Type S curbs are required on Gvllectvr Arterzals i~ e. Minimum pavement section is 2" ACP ,1 12" Rock until R-value tests are submit[ed, and pavement secCivn is caiculated f. 20' paving widCh shouid be measured to tae af curb CALCULATTUNS ~.1. Page nurpebering wauld be helpful ",-,12. Page 2 a. This praject has mare than twv basins -loak at ynvr basin map b. Not a11 the road runvff stays on the site; covrdinate with the road pians and the basin map. Need to address whether ox nvt any vffsite drainage facilicies are adequate far the flvw frvm this site, bvth crn Alki and Valley Way c. Iiieed to address flvws frvm bac& of lots tv Friske Addition on the east and to the unplatted tract on the west vx"Hvw can flvws vn Valley Way (west of Alki) run uphili? Coordinate with the rraad plans 3. Page 5:. Basin Map ~FrvVide cvntours on site, and far encaugh off the syte ta determine drainage patterns. U.S.G.S. tvpv is nvC adequat.e by itself fpr this site V,r'. Glearly define the TC path, tv inclrade length and slope vf vverland aMd channel flvw Compvnents v,d' Coordinate basin limits with road plans & prafiles. HVw can water run uphill on the western pvrtion of Valley Way and on the eastern pcartivn vf Alki? CiL-bI9449"d. Address overland flvws ❑ntv Friske Additian and onta unpiatt,ed tract Aqrs6r+. r5 ,,e. Coordinate drainage easemenfis with uiews on rvad plans How are siopes for each basin caIculate.d? 4. Page 6: a. Coordinate swale floor elevation {2052.22} with gutter eleuativn at curb drop (2026.89) 6. Coordinate swale flnor elevativn (2052.22) wdth drywell grate elevativn (2625.72) /c. Coordinate drywell affset callout with sw+ale secti4n dimensivns d. Coordinate swale canfigurafiion c4c. identification with vievv on road plan, and with Basin Map e. rndicate curb drvp length f. Coordinate drywell callout (28' RT) with plans (28' LT) REYIEW CONIMMNTS Page G of S 20 July 94 - PRf)JECT # P1731 " TtEVEEW # 1 ~ 5. Page 7: ~ a. Cvordinat.e swale floor elevation (2052. 22) with gutter elevation at curb drop (2026.89) b. Caordinate swale flaor elevation {2052.22} with tiryweid grate elevation (2025.72) c. Coordinate drywell offset callaut with swale section dimensions d. Cvordinate swale configurativn & identification with uieva vn road p1an, and with Basin Map e. Indir.ate curb drap length 6. Page 8: a. Indicat.e curb drop lengt'h b. Ccordinate curb drvp callout with plans c. CvQrdinate swale configuratiQn with view on rvad plan, and with Basin Map 7. Page 9: ,,,'a. Flavr and sides are to he sadded ,,,,-b. Nvte that hank elevation = TJC + 0.2' ✓c. Covrdinate dirnensivns tv drywell CL with callvuts; 8' max. frvrn curb i/d. Nate depth from TIC 8. Pages 13, 15, 17: Qur analysis vf the actual aolume grvvided fvr bvth sCorrn runvff and 208 indicates that these swalts are oversized by a considerable factvr; yvur analysss needs tv cvnsider that the total valume develapel in the swale is iimited by the averflnw elevation (at the curb drvp). Dawnsizing these swales could provide enough frontage to allow acce-ss to Timberlane Rvad, instead vf Ualley Way. P'rvvide catcs inddcating tlae actual volumes provided far both starm runvff and 208 cantrol. 9. Page 18: a. Tndicate where these inlets are located (raad name, stativn, LT vx RT) pfr)e,pr h. Indieate curb drop lengths on plans c. Size inlets fvr greater vf Qp, from bvwstring warksheets for tvtal basin, or for (?g, k fram roads only, at T,; = 5 minutes 208 Lf}T PLANS Lot 1, Block I . Coordinate swiade flvor elevation with curb drvp elevation ~ 2. Coordinate svvale £lovr elevation with grate elevation 3. Indicate curb drop lengih 4. Coordinate svvale floor confrgurativn vaith rvad pians REVIEEW C[)MMENT5 Page 7 vf 8 20 July 94 PROJECT # P1731 REVEEW # 1 5. Coordinate swale easement cvnfiguratian rvith road plans 6. Indicace depth fram 3'1C 7. Note bank ele►ration _ TIC + 0.2' , 8. Coordinate dimensivns tv drywell Cti vvith callouts; S' rnax. from curb 9. Flcror and sides are to be svdded 10. Coordinate drywell callout (28' RT) with plans (28' L'T) Lot 7, Black 1 1. Tndicate curb dxop length 2. Coordinate swale flaor canfigurativn vyith rvad p1ans 3. Coordinate swale easement confguration with rvad plans 4. Imdicate dePth frarn TIC 5. NQce bank elevatian = TIC +0.2' ~ fi. Coordinate dimensavrjs ta drywell CI, wrth callauts; S' max. frorn curb 7. Flovr and sides are to be solded Lot 1, Block 2 1. Coordinate swale floor elevativn with curb drvp e1eVatian 2. Coordinate swale flvvr elevativn with grate elevation 3. indicate curb drop length 4. Coordinate swale flaar cvnfiguratian with road plans 5. Coordinate swale easement configuration with road plans f. Indicate depth frvm TIC REVTEW Cf7XMIENTS Page $ of $ 20 July 94 PROJECT # P1731 REVEEW # 1 7. Nate bank elevativn =TIC + 0.2' 8. Covrdinate dirnensiQrds to drywell CL wit}tt callvuts; 8' max. from curh 9. Flvor and sides are to be svdded _ qe r~ MAIL{F1G ADQRESS: DFFICE LOCATIdN- ('Q B6M 18779 N 10015 NEYYPdRT HWY BPOKANE. WASH3NGTCIN 99208 SPOlUANE. WASHINGTpN 99258 PHOhIE (5D3) 4675281 Pd]S (509) 467-5282 .1~. PAUL RAMER & A5SC3CIATES, INC. CONSULTfNG CIVIL ENGINEERS & LAIVD Sl1RVIEYORS N1ASFiINGTC)W + fORHO • MONZYINA NEVAQR • CRLIFDRNPA QREGON Prvject No. 93310 March 28, 1994 arainage Study for Val1ey View Estates Portion of 5W1,14 0f Sectian 13, T25N, R44E, W.M. 5pokane Go►.1nty, W3ShingtC]R P_repared far: Shamus Reilly E. 15$15 Va11ey Way Veradal.e, WA, 99037 Phone: 244-5810 ~ ~v~s•~; ~'Y ` f 6?'• C"~ 'jAr ' ! "I t'UBLfGL?C]CUrulttVff •~~arwF ('i xLINTYENGENE£R'S OFftCIL ~ E7dRIRES i4J►~ tr3. 19~4 ~ ~RIGI11i i I l~ JAf 'S~ i L`1=,;~ dO CQUNi YENIG1NEE;-~ ~ PRQJECT AI+D SITE I1LSL`RIPTION Th~ propoged plat of Vailey View Estates is a 13 Ivt sing2e family resitiential plat ta be canstructed on apprvximateiy 4.83 acres in east 5pakane Cvunty. The site is situated an the nvrth side af Va1ley Way and west of NPovre Street in th€: Sini1/4 af 5ect3on 13, T25N, R44E, W.M. Spakane Caunty. The propased site is generally fZat with the te_rrain sl.oping to the sauth. The slvpes on the site run between 0.5$ and 2%. The soil in this area is generally cQmpri.sed af Garrison gra~~lly loam (GgA). This sozl is excessiveIy drained and has rapid permeability. 5urfa~e run-vff is slaw and the hazarri of soil erosion is slight. ~ ~ METHflI] dF MA1+FAGEA'IENT The proposed pl.at of Valley View Estates has two main basins created by the pZanned internal rvad and twa smaller basins containing Alki Avenue. Most stormwater will remai,n on-site because the improvements tv Alki Avenue as well as the widening of Vall.ey Way. A low point f.n the westerly section of Alki Avenue will allow a"2❑8" swale and type A drywell to contral svme run-off froan the northern section of the site, which is mostly imperviaus area frvm the imgrovement of Alki Avenue. A small "208" swale wili al,sa collect most run-off from the east end of A,1.ki AVenue before it leaves the site. Z`he rest of the on-site storanwater will run south and be callected in "208" swales along the sides of Timherlane Street with the last twa swales having type B drywell.s, ane on either side of the propased Timberlane Street. Mvst stormwater created frvm the improvements of VaYley Way will also flow to these two swales and be Gallected there. The remaining amvunt will cvntinue t❑ £1ow dawn Valley Way aZvng the side of the raad, as it did befare the improvements. This annaunt is far less than what flvws alvng VaTley Way under existing conditivns. Develvprnerat of this plat shauld have little ar no effect Qn the drainage flow pattern in the area. ~ SPOKANE COUNTY, WASfd1NGT0N - 5E-iFF7 NuME PsA Chur V - ~ • ~ F . : ' . s . . G8a ca nra c ~,4, . Trentwoi ~ y. ~ - d•R ` ~y.y~"'. ~ ' F.JY~- . . • T~ .F JI` o ~s. 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I 2457 .2013 o 'r e R ~ ~ . • AYE y~.i 8 q 45 E ~10' 34 ,:~'T ~ ' , e: • • • ' 85' :-fFREEMA~N] ~ R 44 E s9oaM FEET I1 FaEEMb~v s~rE n 484 12 30" as79 a s f~,adrFr~~o ~a ~r ~ SCALE o 1 24000 ~ rai~ , )logeca! Survey ~ , - ~ t~ ~ ~ ~ aavo ~~ti ~ ~ ~ ~ l. so~ a . , r~~ nwFrRE ~ INSTALZ TYPE B DRYWELL . 3'_ f ~ ~i 25' 40-s P°' ~ SWALE A DETAIL. SWALF $ DETAIL scaLE' r 30• sc,aLE: ry , ae• ~s• ~ •4 I+`~~ h 3 m ~ 13' I ~ ~ 1s • I ` ~ I ;n h y 'L ►8~ f~•~ ~ ~ SWALE A9 E DETAIL SWALE F dG DETA JL SCALE; I" - 30' sCAtf,• r" r 30' - rNsraLL rYpf .a oRrwEtL - r a ar• °~1 27'~ I 23- I - ~ SWALE H DETAIL SULL' r- w ao• SIWALE C DETAIL SGA'Le': r" $ 20• , ~ -a ZO' QIQ,4111G4GE EA.Ye1M#mr W PanD 30 rTaM . ~ ~ EL, sao PoND Bo m,w rrp~ ~ ~rac q .,~.2` ~ r A1~ s►GES FR.aKE a cRAr ~ - ~ I } !V i r. s fs 1.r• nJr- 1 "208m SWA[.E a ELEY 2025.99 wo tiQOe.. , H SWALE SEL TION 'ti r~rs ' $CA"LE.' f" a 5'-0" ~C~►4 S wACFS "A ~ ~ ~S" s~ ~Era ~ ~rH s pacs 3t ~ ~ ►s' DRA►nMsE EAsEMEHr ►tOAn wA•r ►5' POka BaTrow , . ~ ~ Or EL, Sva PaNO ara rTar o ANo sragS ` ~ '2a00 swAzE ~ c ~ TYP1CA L SWALE W/O DR Y WEL L nrOr rv scACE w ~ aa• oRarNAGE EasFMEvr ~ 71 ~ • RiAAD wAr ' . I3' PDND 84 TTOAf r soo Pon no T Tam ry ' ~ $AAGIC ELIEY ,AAffl~! ~ '~E 4 AIETJt[~ p1~ . TJC • p.?0' FRAME 4 GRATE . 3;1 ~ • • ' ' ' '208' SW,4LE g ~ ELEV 2030.46 Wc~°• • ~ t y o ~ 4 ~ d cm o ...•:~e. ' ~ ■ ~ 1 TYPE A DR1'1l~ELL 5EE OE7AIL TFfJ9 PAGE TYP1CaL ~WALE SE'CTIOIV ! SWALE C 1 s~~LF-- . 5'_0- 1 . T ?"PE 4 ME TA L FRAMF 8 GRA TE MQRTAR IN PLACE , GRA 55EC1 5 WQLE • • y~~flli rA~. .ll~~r9lF13I••~1 VI all~el~,+ ~ ~ I o ~ ` A f,. 11t1~i1.eli.• J.r/.r • a. f4•6,.A1 I/pP MUf?TAREA ~ . AL]JtJS TMENT 2•_{}" ~ • R!lVGS 4„ CC3NCRETE S'LAB ~ 2% ; 2 % (SfE NO TE 21 , : ~ ~ a p ? _ : ~ I - . ~ a~ s ~ 1 ~ 1 ~ 1 • ~1~i ~3IIFw7!-TGL Nh! TL/R{1L . a GRp vFL BA CxFrL L I ~ d! ~ . ~ry (SEF 1WdTE d - •i - ~~`v - ~ w I ° ~ ►6i g`.. ~ SFEP/Q [7E ~I a • -1 *r ~ e~ti PORTS • ~ .e FLI~~i'!C LINER g ~ AI~fl~~p r4545+ ~D1~J7 i9~1lN u ' ~ I • V ~~~ISkjYGId E'Y41 V1YLENT [ ,7 • . e c . 4 ■ ~ ~ r' ~ !c i I.! ' ■ - y~ ~ • ~ ~ • • + i ~ J •±i r~-~°. ~ f~ a d' r ~/~~rni"r`~ 1~11~'~"rr,r~ --•~'j..~ - ` - uNDls rU148ED sOII .~'rv~~ERAL-NOTES: i. cRAVF-G ~~~LL QuANrm FoR aRrwELL TYPE "A° - 30 cvBFC YARDS MNrMUM 142 TvNs 2. OQNLRETE 5LAH 5HALL BE CLA55 3000 CANCRETE. 3. ADTUSTl1EN'1' BLDCKS SH,ALL BE CEMEN`i' ODNCRETF-. 4. PHEGLST R,YS£Ft MAY BE USF..II IN DDNiBINI'l'~~7ION V4'TI-i [3R IN T.IEU UF ►+►p7iJSIINC, gLDCK,S. DR Y►YELL ^ ! ~~E "A 11 SCAU. IM = 21Z^I~ 7 6 TYPF 4 AEFAL FRAME i GR++4 7"E 141QRTAR PN PLAGiE ~ _ ~ _ • ` GRASSED SWAL E ..~:...I,.i~r~r..,e.~n i ~ 1, ra, ~ n.l+~ I +i.l sI tir',r•,t~,~,.~4 ~ ~ • r , + _ +4laR TARED , • AD.IUSTMENT 2' -O" RIWGS 4° GDNCRETE SLaB ~ rsEE nra rE a~ J.A ~ ~ ~ ~ ~ y I-• ~ ao~~,o ~ o~; ~ • _ +i • ~ vF~~yrt ~ ~ „ ~p r~a V - V I"a ~ ry ~p p~ r, v~a,v o a ~ °~d • 4 i L.~.~ e~ t• S 0 ,J Y F - J • . ~ 4'•, o Q ` " ` . e p . u ~ • ~ • ~ v ~ a ~ ~ F f ° ` ~ SFEPAGE . PaRrS 1 ~ L • L L~'~ s ~ b L' c' S ~ I 4-~ ~ i r 3" FF',p 5F[ED N,4 TUr?AL GHA YEL BACKflL L PSEE NiD TE d l u ` •t ' . - o d e' f o s~ ❑ I f f 1 u 4 FABRrc trNFR Gr ' ~ AM4)CQ •4545 014 aPPROYED EQtJlYAZEAIT ■ ~ c~ ~ : ° ~ o ' ~ a ; r, ~ N ~ as: GENERAL NOTES: ~ unraIsrcrRBED so1L ~ l. GRaVEL s►~CKFILL vuANTffY FoR r~RYWELL T"fPE "B" - 44 CUk3iC YAFl.pS MTN[ML]M156TC]te'S 2, i7C)NCREI'E SLABS SHALL BE CLA55 30DO {7ONCFtEIE YTVELL ! TYPE lfB SCALE 1' ~ 2'_0• 3. AnruMarrr BLocxs SHu.L aE CEMEN°r CoNCRETE 4. F'RECA53" RiSER MAY BE [}5ED IN CQl►+IDlNA'i'1DAI WITI3 OR IN UEL8 DF ADy[]S'i'[NG BLOCKS 5. SPECLAI. BACKFILL MATEAfA.T, FOR bRYR"ELLS 513ALL ODNStST OF WASHEi] GRA°VEL GRADFD FRDM 3" "I'0 3" WZIM A l1+[AXI'MUM UF 5% FA55TNC3 THE U.S. NO. 200 SCREFIN, AS MEALSUREQ F1Y W£iGHT. A'MA7CIMUM OF 10% OF THE AGGREGA'iE, AS MF.A.SURED BY WF-IGHT, MAY BE CFtUS}ED OR FRACTC3itED RdCIC 7'HE EtFJMAINiN[i 9096 $HALL 88 NATURA[.[.Y DCCURRflNG UNFRACRlRED MAT'ERSAL. 0 7OWSTRING METHOD {TEN YEAR STORM ❑ESIGN} PROJECT: 93310 iETENTION HASYN DESIGN HASIN: AWA*-, DESIGNER: G. MILLER NUMBER DF ORYWELLS PROPOSED DATE: ❑9-Aug-94 0 Single (type A) I DQUble (type B) Total Area (calc.) 1.86 {see fvilvwing sheet} Time flf Conc. (calc.) 12.29 {ses fvllawing sheet} Compasite "C" (calc.) 0.43 (see £ollowing sheet) Time of Cvnc.( min) 12 . 29 plwt~ A,rea ( Acres ) 1.86 C' F8ctoz` 0 . 43 ~ a Tmperrious Area { sq . f t . } 137 6 f Vvlume FravAded 208: 57 storm: 877 Qutflow (cfs) 1 Area * C" Factar 0.$1 #1 #2 #3 #4 #5 #fi #7 Time Time Intensity Q dev. V in v out Starage Inc. Inc. (min.) (sec.) (in./nr,) {cfs) (cu. ft.) [cu. ft.) (cu. ft.) (#I*60) (A*c*#3) (Outf.*#2) (#5-#6) 12.29 737.60 2.02 1.63 1615 737.60 877 5 300 3.18 2.57 1032 300 732 10 600 2.24 1.81 1453 600 853 15 900 1.77 1.43 1644 900 744 20 1200 1.45 1.17 1698 1200 498 25 1500 1.21 ❑.9$ 1710 1500 210 30 i$❑o 1.04 0.84 1721 iao❑ -79 35 2100 0.91 0.73 1726 2100 -374 40 2400 0.82 0,66 1754 2400 -646 45 2700 0.74 0.60 1762 2700 - -938 50 3000 0.68 0.55 1784 3000 -1216 55 3300 0.64 0.52 1834 3300 -1466 60 360[] 0.61 0.49 1896 3600 -1704 65 3900 0.60 ❑.48 2010 3900 -1890 70 4200 0.58 ❑ . 47 2083 4200 -21 1°7 75 4500 0.56 ❑.45 2147 4500 -2353 80 4800 0.53 0.43 2160 4800 .-2640 85 5100 0.52 0.42 2245 5100 -2855 90 5400 ❑.50 0.40 2280 5400 -3120 95 5700 0.49 0.40 2353 5700 -3347 100 6000 0.48 ❑.39 2421 6000 -3579 r1 iRAIAiAGE F{DA6D CALCllLATIONS Required grassy swale pQrad starage volume = 3mpervious Area x.'S in. / 12 in. rft. = 573 cu. ft. prQVided: 577 cu. ft. DRYWELL REQCIIREMEN7rS - 10 YEAR DESI+GN STQRM Maximum st+orage required by Bawstring= 877 cu. ft. proVidedt 877 cu. ft. Qepth vf starage swale = 0.76 ft Number and type of Drywells Required = 0 Single T Double TIME ❑F GCJNCENTRATION ( minutes ) Tc (owerTand) Tc (gutter) ct = ❑ . i5 L2 = 445 - ~ r~I(~,) ~zfl ~ Z2 _ 50-'-. N(A) T 0.4 ~ B _ 0 S(A) - 0.0039 n = 0.016~--' S = 0.0084 TC (A) ; 8.08 a = 0.19 11 (B) _ 0 Tc (gu) - 4.21 .1(B) - ❑.4 Tc(A+B) = 8.08 S(B) - ❑.15 Tc(tDt.) _ 12.29 Tc (B) = 0.0 Intensity 2.02 Areas "C" _ A*C A = 0.92055 WF = 9.7706 A 0.00 0.25~ 0 R = 0.0942 H @. 24$ IA ~ . 30 0.252 V = 1.76 C Cl.9.R 0.096 Tc(gu} _ 4.21 n w'rf& 0 a.I5 -a4 0.171 Q(est) = 1.52 • E 0.32 0.90 0.288 0.0[] 0.00 0 Hvlding = 15.85 0.00 0.00 Q TvtaZ A Cdmp "C" / ~ ~ffi6) Q=c*I*A= 1.63 CPV West.) = 1.62 A: C] sq ft undeveloped meadaws/pastureland B: 12,250 sq ft existing and proposed structures Assuming 7 new homes at 1,750 sq ft each . 5,227 sty ft existing and prvposed dra.ves and raalks Assuming 20 wide d_riVes and walks for 7 homes Q: 49,658 sq ft ex3sting and praposed grassed lawn areas Assuming frvnt and reare grass yards on 7 hvmes E: 13,8{]0 sq ft propased raadway e IOWSTRING METHOD {TEN YEAR STORM gESIGN} pRdJECT_ 93310 IETENTION BASIN DESIGN 13ASIN: OHO DESZGNER: G. MILLER MTMHER OF DRYWELLS PFttOPOSED DATE: 09-Aug-94 0 5ingle (type A) I I]ouble (type H) Total Area (calc.) 2.12 {see fallowing shest} Time of Conc, (calc.) 18.69 (see following sheet) Compasite "C" (cal,c . ) 0.40 (see f❑I.lowing sheet ) Time o£ COnc. ( min ) 18.69 Area (Acres) 2,12 ~ C' Factor ❑ . 40 ~PA.1 1 ~ ~ Imper`vious Area (sq. ft. ) T4~5a !3'~~Q~ Volume Prvvided 20$: 63 s~orm: 45 Out£law (cfs) 1 Area * C" Factor ❑.86 #1 #2 #3• ^#4~ ~#g~ Time Time Iratensity Q dev. V in V aut Storage InC. Inc. {min.} (sec.) (in./hr.) {cfs} {cu. £t.} (cu. ft.) [cu. ft.) (#1*60) cA*c*#3ti (Outf.*#z) (#5-#6) 18. 69 1121.34 1.53 1.31 1972 ^1121. 34~ ~850 ~ 5 300 3.18 2.72 .1094 300 - .794 10 600 2.24 1.92 1541 600 941 , 15 900 1.77 1.51 1826 900 926 - 20 1200 1.45 1.24 1962 1200 762 25 7.500 1.21 1.04 1947 1500 447 30 18D0 1.04 0.89 1941 1800 141 35 2100 0.91 0.78 1932 2100 -168 40 2400 0.82 0.70 1951 2400 -449 45 2700 0.74 0.63 1951 2700 -349 50 3000 0.68 0.58 1967 3000 -1033 55 3300 0.64 0.55 2016 3300 -1284 60 360[] 0.51 0.52 2078 3600 -1522 65 39[]0 0.60 51 2198 3900 -1702 70 4200 0.58 0.50 2273 4200 -1927 75 4500 0.56 0.48 2339 4500 -2151 8(} 4800 4.53 e.45 2349 480(] -2451 85 ,5100 0.52 0.44 2438 5100 -2662 90 5400 (].5(] 0.43 2473 5440 -2927 95 5700 0.49 0.42 2549 5700 -3151 IQD 6000 0.48 0.41 2620 6000 T33$0 iRAINAcE POND GALCULAT$ONS Required grassy swale pvnd storage volume ~ Impervivus Area x.5 in./ 12 in./ft. = 590 cu. ft. provided: 637 cu. ft. DRYWELL REQUIREMENTS - 10 YEAR QESIGN STORM Maximum starage reguired bx Bawstring= 941 cu. ft. pravidsd: 945 cu. £t. Depth of storage swale = 0.74 ft Number and type af Drywalls Required = 0 Single I Dauble TIME 0F COKCENTRATIqN (minutes) Tc {overland} Tc (gutter) Ct = 0.15 L2 = 130 Zl _ I L1(A) = 395 Z2 = 50 N(A) _ ❑.4 13 _ 0 S(A) = 0.0033 n = 0.016 s = 0.008 Tc (A) = 17.37 d - 0.18 .I(a) - Q TG (gu) - 1.32 _1(B) = 0.4 Tc(A+B) = 17.37 5(H) = 0.15 Tc[ tot. ] = 18.69 Tc (B) = 0.0 Intensity 1.53 Areas "C" _ A*G A = 0.7988895 WP = 9.1021 P, 0.00 0.25 ❑ R = 0.0878 S 0.24 0.90 0.216 V= 1.64 c v.i❑ 0.80 0.08 Tc(gu) = 1.32 n 1.39 0.15 0,2085 1.31 E 0.39f 0,90 0.351 0.00 0.00 a Holaing = 4.63 a.o❑ ❑.aa o Totai A cQmp „C„ 2.12 0.40 4=C*z*A, 1.31 West.) = 1.31 A: Q sq ft undevelaped meadows/pastureland H; 10,500 sq ft existing and groposed structures Assurnnig 5 new homes at 1,750 sq ft each 4,356 sq ft existing and proposed drives and walks Assuming 20 wide drives and walks fer 6 hames D; 60,548 sq ft existing and proposed grassed lawn areas Assuming frvnt and rear grass yards on fihomes E: 16,990 sq ft propased rQadway 3 611/ C7W5"!'RYNG METHCi❑ (TEN YEAR STORM ❑ESIGN ) PRi7,7ECT: 93310 ETENTI(7N HA5IN DESIGN BASIN: SrA.) QES IGNER . G. MILLER NUMBER C3£' d7RYWELLS PFtOPOSE❑ DAT'E; 09-Aug-94 1 single (type A) 0 Double (typa B) Total Area (ca1c. ) 0.21 (see foliowing slaeet) Time vf Conc. (calc.) 5.00 (see follawing sheet) Compasite "C" (calc.) ❑.4Q (see tollowing sheet) ~ ~ Time o£ Gonc. (min) 5.00 Area ( Acres ) 0.21 C.'3 G' Factvr 0.40 ~ ~ --Impervious Area (sq. ft.) ?ZGD ~ J~ Vc~lume Prouided 208: 90 storm: 135 Outflow (cfs) (].3 Area * C" Factar 0.0$ #1 #2 #3 #4 #5 #fa #7 Time Time Intensity Q dev. V in V out Starage Inc. Inc. (min.) (sec.) (in.]hr.) [cts) (cu. ft.) (cu. ft.) (cu. ft.) (#1*60) (A*C*#3) (Outf.*#2) (#5-#6) 5.00 300.00 3.18 0.27 1477 90.00 17 . 5 300 3,18 0.27 iaa 90 i? 10 500 2.24 0.19 132 180 -48 15 900 1.77 0.15 149 270 -121 20 1200 1.45 12 159 360 -201 25 1500 1.21 0.10 163 450 -287 30 1800 1.04 a9 156 540 -374 35 2100 ❑.91 0.08 168 630 -462 40 2400 0.82 0.07 172 720 -548 u 45 2700 0.74 ❑.06 174 810 =636 - 50 3000 [].68 0.06 177 900 -723 55 3300 0.64 0.05 183 990 -807 60 3600 0.61 0.05 190 1(]80 -890 65 3900 0.60 0.05 202 1170 -968 70 4200 0.58 0.05 210 1250 -1050 75 4500 0.56 0.05 216 1350 -1134 80 4800 ❑.53 0.04 218 1440 -1222 85 5100 0.52 0.04 227 1530 -1303 90 5400 0.50 0.04 231 1620 -1389 95 5700 , ❑.44 0.(}4 239 1710 -1471 100 6000 0.48 0.04 246 1800 -1554 -----------------------------------------~._~~,~.__~~r__------------~--_...~ W '-L~ G1~ `RAINAGE PC]ND CALCULP►TIO1+E5 Requxred grassy swa1e pond storage volume ~ Impervious Area x .5 in. / 12 in. /ft. = 90 cu. ft. prvvided : 90 eu. f't. DRYWELL REQLIIF{EMENTS - 10 YEAR I]ESI[gN STQ~ ~z,5U3Pz5P Maximum storage requfred by 8awstring= 17 cu. ft. provided: 135 cu. ft. I3epth af storage swal0 ~ 0.75 ft Number and ty,ae ❑f Drywells^Required = 1 Single 0 Double TTME QF GpNCENTRATIQN {minutes} Ta ( vvez'land ) Tc (gutter ) Ct = ❑.15 L2 _ ~d5 Zl - .1 LlcAs = 61ftt Zz = 50 N(A) = 0.4 B = ❑ S(A) = 0.008 • ra~.^ n = 0.016 s = 0.008 Tc (A) = 1.47 d = (].10 i1(B) = Tc (gu) = 1.58 (B) _ ❑.4 Tc(A+B) = 1.47 5(H) - 0.15 , Tc( tvt . ) ~ 5.00 Tc (B) = 0.0 xntensity 3.18 Areas ,ocii A*C _ A = 0.244942 WP = 5.0396 A 0.00 0.25 0 R = 0.0486 B 00 ❑.90 ❑ V = I.11 C 0.00 0.80❑ Tc(gu) = ~..58 D ,q.I4 ~ {}.021 Q{est} = 0.27 E 0. ~l7 . ac, ;pW1,900.063 0.00 4.00 Q Holding = 3,74 0.00 0.00 Q Tvtal A Camp "C" 4~~41~ 10 W.410 Q=c*i*A= 0.27 01a~ Q[eSt.) ~ 0.27 A; Q sq ft undeveloped meadows/pasturaland B: 0 sq ft existing and proposed structures Assuming Dnew homes at 1,750 sq ft each . . 0 sq ft existing and proposed drives and wa].ks Assuming 20 wide drives and walks fDr I home 1]: 6,098 sq ft existing and proposed grassed lawn areas Assuming frant and rear gI'Fl55 yards on 1 home E: 3,060 sq ft proposed roadway & QWSTRING METHOD (TEN YEP►R STORM dESIGN) PRVJECT: 93310 ETENTYQN BASYN DE$IGN HASIN: 0d DESIGNER: G. MILLER H[IMSER QF BRYWELLS PROPOSED DATE: 09-Aug-94 ❑ Single (type A) 0 nouble (type B) Tatal Area (calc.) 0.13 (see fvllowing sheet) Time ❑f Conc. (calc.) 5.00 (see fallawing sheet) Camposite "C" (calc.) 0.50 (see fvllowing sheet) Time of Cona. (min) 5.00 Area (Acres) 0.13 C' Factar 0.50 Imperviaus Area (sq. ft.) 2520 Vaiume Provided 208; 105 stvrm: 190 Outflaw {c£s} D Area * C" Factor 0.06 #1 #2 #3 #4 #5 #6 #7 Time Time Intensity Q dev. V in V aut Starage InC. Ync. {min.} (sec.) (in./hr.) {cfs} (cu. ft.) {cu. £t.} (cu. ft.) {#1*60) (A*C*#3) (outf.*#2) (#5-#6) 5.00 300.00 3.18 8.21 82 0.00 82 5 300 3.18 0.21 82 0 sa 10 600 2.24 0.14 101 ❑ 101 15 900 1.77 0.11 114 ❑ 114 20 1200 1.45 0.09 122 0 122 25 1500 1.21 0.08 125 0 125 30 1800 1.04 ❑.07 128 v 128 35 2100 0.91 4.06 129 0 129 40 2400 82 0.05 132 0 132 . 45 2700 0.74 0.05 134 0 134 ~ 5(} 3000 0.68 ❑.Q4 135 0 136 55 330[] 0.64 0.04 140 fl 140 60 3600 0.61 ❑.04 146 ❑ 146 65 3900 ❑.6a 0.04 155 a 155 70 4200 0.58 0.04 161 o 161 75 4500 0.56 0.04 166 o 166 a❑ 4800 0.53 0.03 168 o . 168 85 5100 0.52 0.03 174 0 174 90 5400 0.50 0,03 177 0 177 95 5700 0.49 0.03 183 0 183 100 6000 0.48 0.03 189 0 184 _ __»____~~~~~W~~~~~~~~~~~----------------------=-=---------------------- f7 ~ -~FtAIP+fAGE ParrD cALcUrATxa~S 1-4~ Required grassy swale pond starage volume = Impsrvious P►rea x.5 in, / 12 in. /ft. = 105 Gu. ft. prova.ded: 105 cu. ft. DRYWELL REQUIREMENTS - 10 YEAR DESIC;N STC]RM Maximum storage required by Bowstring= 189 cu. ft. ~ prmviaea: 190 cu. ft. ❑epth af starage swale = 0.90 ft Number and type Qf ❑rywells Required = j-* Single + 0 Doubl.e TIME OF COIVCE3dTRATIQIV (minutes ) L- Tc (overland) Tc (gutter) Gt = 0.15 L2 = 140 Zl - 1 L1(A) = 10 z2 = 50 N(A) _ 0.4 13 = 0 5(A) = 0.008 n = ❑.0lfi s - 0.008 Tc (A) ~ 1.47 d = 0,89 l1,{H} = 0 Tc (gu) = 2.25 --'(13) - 0.4 Tc(A+B) = 1.47 S(B) = 0.15 Tc{ tQt . } = 5.00 TG (B) = 0.0 IntenSity 3.18 Areas „+C" A*C v A = 0.2019855 ' [nTP = 4.5768 A 0.00 0.25 a R = 0.0441 B 0.00 0.90 ❑ V= 1.04 C 0.00 0.80 v Tc(gu) W 2.25 D 0.07 ❑.15 ❑.Qi❑5 Q(est) = 0.21 E 0.06 0.90 ❑.054 0.00 0.00 0 Holding = 4.99 0.00 0.00 0 Total A comp "C„ 0.13 0.5t] Q=C*I*A= 0.21 ok 4(est.) ~ ❑.21 A: ❑ sq ft undevelvped meadows/pastureland H: 0 sq ft existang and proposed structures Assumisag 0 new homes at 1,750 sq ft each , Q sq ft existing and praposed drives and walks Assuming 20 wide drives and walks for 1 home D: 3,049 sq ft existing and prvpvsed grassed lawn areas Assuming frant and rear grass yards on 1 hame E: 2,520 sq ft prvpvsed roadway 6D CuiqB DROP 619LCUGATroIJ5 Ia - STA 3+85 Timberlane +Gutter E1, = 2029.05 - 2" depressian "208" Flaor El. _ 2028.55 Gutter SZape = 0.84% Area flawing t❑ curb drap = 0.76 AC % ❑f total area = 41% Q = 0.41 x 1.63 = 0.67 CFS estimate d of comQasition sect.ion using 16.67% crass slope ~ d = [(n. x Q)1C0.56 x z x ysa?1 d= U0.014 x 0.67)I[0.56 x 6.00 x NC],0084)] _ 0.27 FT CapaCsty/FT = ❑.18 CFS/FT (figure 2a) L(req. ) _ 671❑.18 = 3.72 F'T Therefore, prDVide one curb drap @ 31-9" 2a - ST'A 2+25 Timberlane Gutter E1. = 2027.71 - 2" depression "208" Flavr E1. = 2027.21 GLitteT SlopE = L} . S4% . Area flowing tv curb drop =0.51 AC - $ af total area = 27$ Q= 0.27 ac 1.63 = 0.44 CFS estimate d of compvsition section using 16.67$ cross slope ~ d = L(ri x 4)1(0.56 x z x Vso)] - ~ d= [(0.014 x❑.44}/{0.56 x 5.00 xNO.O084)] = 0.23 FT capacity/FT = 0.16 CFS/FT (figure 2a) L{req.} _ 0,44/0.16 = 2.75 FT Therefflre, pravide ane curb drop @ 2' -10" 3a - 5ta 1+06 Timberlane Gutter E1. 2026.89 ' "208" Flvor El. _ 2025.89 Lor,v Point Q = 1.63 CF5 use cusb drop w/ Capacity/Ft = 0.60 f rom f igura 3a L (req) = 1.63/0.60 = 2.72 FT Therefore, provide one curh drop @ 21-I0" ~0 1b - 5TA 4+65 Timberlane Gutter E1. = 2029.73 - 2" depression "208" Flaor E1. = 2029.23 Guttar Slvpe = ❑.84% Rrea flvwing t❑ curb drvp = 0.55 AC * of tota1 area = 26% Q = 0.26 x 1.53 = 0.40 Ck'S estimate d of compositian section using 16.67% crass sl.ope ~ d = [(n x Q)I(+D.Sfi x z x ISn)] d = [(0.014 x 0.40)J{0.56 x 6.00 x 10.0084}] = 0.22 FT capacity/FT = 0.14 CFS/FT (£igure 2a) L(req. ) = ❑.4C]/0.14 = 2.86 FT Therefore, pravide ane curb drvp @ 21-11" 2b - STA 2+95 Timberlane Gutter E1. = 202$.30 - 2" degressian "208" Floor El. = 2027.80 Gutter Slape = 0.84* Area flaraing ta curb drop = d, 55_ AC $ vf total area = 26$ ~ = ❑.26 x 1.53 = 0.40 CF'S estimate d of compasition seation using 1 6. 67* crvss slope ~ d= [(n X 4)f(0.56 x z xISo)] d = L[0.014 x 0.40)I(0.56 x 6.00 x ~0.0084)] = 0.22 FT capacity/FT = 0.14 CF 5,1FT (figure 2a ) L{req.} = 0.40/0.14 = 2.86 FT Therefare, prvvide Qne curb drop @2' -11" . 3b - 5ta l+pfi Timberlane Gutter El. 2e26.89 "20$" Floor El. = 2025.89 Low Point Q = 1.53 CFS use curb drap w/ Capacity/Ft = 0.60 from figure 3a L {req} = 1.53/0.60 = 2.55 FT There€oxe, provide one curb drop @ 2' -8" j.,Tt ok,.cbk gaQf;eA lc - Sta 1+16 Alki Avenue Gutter Ei. 2031.46 „208°° Floor El. = 2030.46 Low Pvint Q = 0.27 eFs use curb drvp wi' Cagacity/Ft =0. 37 frvm figure 3a L( req 0. Z"7/v . 37 = 0.73 FT Therefore, gravide one curb drop @ 1'_p" ld - 5`I'A 3+25 AI.ki Avenue Gutter El, a 2031.03 - 2" depress3on n 2Q8" F1Qt]r El. = 2030.53 GlltteX' SZOpE'. = 0.84% Area flowing ta curU drap = 0.13 AC % af tatal area = 100* 9= 1.00 x 0.21 =0. 21 CF5 estimate d af composition section using 16.67% Gross slope ~ d = [{n x Q}I{0.56 x z x NSo}j a= H0.014 x 0.21)!(0.56 x 5.00 x 10.1000)] = 0.17 FT Cag3city{FT = 0.12 CFSIFT (figuTe 2a) L( req. ) = fl. 21/[3.12 = 1.75 FT Therefare, provide one curb drop @ 1 ' -1 C7 " ~ - C]EPTH ❑F FLQW - y - FEET ~ Ot DZ 03 04 03 06 08 .10 2 3 .4 .S .b .7 s9 1.4 t I.C ~ 0. ~ T~ 4_ G T-t, 77 44 ~ 1 I .3 f ~ ~ , ` !F ~ 1 I° f I ifii l-f-~~~~. I ~ ~ I ~ pa• ~ i_4 L ~ ~ I i E I I I I I ati/ ~I I~ T!! i 1.~a ~ ~ ~ ~ ~ -f • ~ ~.08 i • , ~ ,as J-! L ~ r- I , \ .05 -7_E I f I p4 ga s fl ' ; ` I I I I I~ ~ I I~ in ~3k5CHARGE PE~" F~]fi7T ~?F 4- 6 LENGTH QF Cl~RB OPENING INL,i'S WHEN lNTERCEPTING .s wth ~ i0a°/o OF GUYTER F4.OW - - + 4 -1 (b) P+4RTiaL INTERCEPTION RATIfl FOR INLETS OF LENGTM LESS T~iAN L ~ a i~~~~-H~~i--•.z ~00 I ~ .05 06 .08 .10 .S 4 .'J A .6 LO lif:oure L/La CL1PACITY OF CURB OPENING 1AlLETS flN CONTINtJOUS GRADE FIGURE 16 - fSilA1LIHG ADDRESS: ❑FFICE LOCATIOH: Pp BpX l8379 N 10115 NEWPOFiT HWY SF'ClKAPiE, W45MING70N 99208 SPOKIlHE, WASHINGTpN 99218 PHONE {509) 497-57$1 FdIX 467-5262 ^ J. PAU'L R►4MER & A5SOCrATEs, ING. CQNSl1LTENG CNIt ENGINEERS & LANp SURYEYDRS WASHINC,MN • IDAHi3 • MOHTl1NA !dE'VRQA • CALIF6RPlIA ❑REGON PraJect Na. 93310 March 28, 1994 Drainage Study for Valley View Estates Partivn ❑f 5W1/4 of Section 13, x25N, R44E, W.M. Spokane Caunty, Washington Prepared fvr: , 5harnus Reilly E. 15$15 Valley Way Veradale, WA 99037 Phane: 244-5810 ~ ~wAs P.O.~$R7 ~ w 0,e• ~ /()IV A L ~NT ~ t"tiFrir~~L P~?BLfG ~U{~} ~ ExP1RCS Nt]V 1g, 11294 ~ OKA14E COL~NTY E~~~EK5 OFF4CE ORI~I~~L . ,'RJ.~EC T ~ ~ SU6P,+i1i`f AL tt RETGFiN TO COUNi YENGI'NEE~- PROJECT ANH SIT'E DESCRIpTIOh The propased plat of Valley View Estates is a13 lot single family residential plat to be constructed on approximately 4.83 acres in east Spokane Caunty. The site is situated on the north side ❑f Valley Way and west of Mv❑ra Street in the SW1/4 vf Section 13, T25N, R44E, W.M. 5pokane County. The proposed site is generally flat with the terrain sloping to the sauth. The slopes an the site run between 0.5% and 2t. The soil in this area is generally comprised of GarrisQn graveliy lvarn (GgA). This soil is excessively drained and has rapid permeahility. Surface run-off is slaw and the hazard ❑f soil erosivn is slight. . ~ METHi}I) (}F MANAGEMENT The praQosed plat v€ Valley View Estates has twv main basins created by the planned internal rflad and two smaller basiras containing Alki Avenue. Mvst stormwater will remain vn-site because the imprpvements t❑ Alki Avenue as weAl as the widening of Valley Way. A, law point in the westerly section of Alki Avenue W will alZow a"2a8" swale and type A drywell ta cvntrol some arun-off frvm the narthern section ❑f the site, which is mostly imperviaus area from the imprvwement of Albsi Avenue. A small "2Q8'° s►aale raill also collect mast run-aff fram the east end of Alki Avenue before it leaves the site. The rest of the vn-site stornwater will run south and be callected in. "208" swales along the siaes of Timberlane Street wit:h the last trarv swales having type B drywells, ❑ne on either side ❑f the proposed Timberlane Street. Most starmwater ereated from the improvements of Va1Xey Way will also flow to these twa swaZes and be callected there. The remainiaag amount will continue ta flow dawn Valley Way alQng the side of the rvad, as it r3id before the impxavements. This amvunt is far less than wt'iat flows alang Valley Way under existing canditians. Development of this plat should have little ❑r no effect ❑n the daeainage flow pattern in the area. ~ SPQIiAPJE COUNTY, WA5111NGTON - S!-1rEl- NUML , ~ ~ }„xt • - ~ ` • ¢ • G$A ~:o.• Geg i. . cAnrae. ~ TI'eritwoOI - ~ ~ ` ~`~~p-~ -~.a~ee•'-. s*~ - - . ~ - _ 7C'=. i......p. . ~ i'~ d ~ ~ ~j:" yI ~ ~ ~ 9 4• ~ r ,a°. • r •~w 1 LTr: 1 .r ~ y~ ~ _ - _ ` ~ ~ ~ : ~ - -aacrFrc p ~ I e ax ~ nrvsrNEr~ . ~•7r~yb..~,, M:~ " f M _ • ~ ~et e.~ rSA lr. : . 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' " ; II _ ;l - ~f,y~'! r`~~. 12300 I ' . d - . : ° 1~• ~ i, ~ •l.fr' ~yr~}. $nk ~~senamla i p.HS :j~•~' ~i ave ~k_~. " ~ ~ ~ - , =r~,~; 6eb ~T ,E, ~ d091 1 „-2081 ~ " ' • t i v3s~.s~f~~ I , ~ `7 1C, t3 ~ , ` ~ ~ - ~f ' a •~l ~ r f F~9 ~ ' } ~ ~ ~ 6 . ~ y ~ i • 1 1.~ _ • M ~ t 1 ` _ , - . ' f'~ - " ~ ! • l~ ~ /~s_ ''i •'r ,i ' l~~- ~ ' ~n " • i ~ `'L'~.;~. ~ ~ • • ; 4I~ ~ u3k, • ~ -f r u- 1,~ , ~ V~ f ` o 9 y, t I ~k _ r~ ~ µ h + - ' ~r . . y 'Hfad:~T-~ ~ - 2 ' ~u 37 f _ ~Terrac- i View ~ ~ • an,~a ~ l~ii1 T _ - "c_.~ y- 30 I r . , ~R_ j ~ "a► ~ ~ ~ i ~'2arr+ _ - ~i J. ~2 s'~ P.~ _ • , i.-~Meli t26e ~ • ~ , ~ , ~ ! ~•~L..~ ~ ~ ~ J '4I ' • a'9 r ~ f ~ ~'38a r 23~ - .-..f-"~g p ~ ~'~F:'•~A 4 i ~ R ~ •f.~~r - . . 9 ~e'{ • i ~ : I' 1• • , ~ z - : , • = g r ~ i A 'n m e ~ : . ~ ( ~ ~ • ~ a , ; , w - ir n y `'aaC ~ :Xc~" . ' ~ . ~ c t - i_ ~ n, ry r +y, ~y t7- ~Y -s ~ r ~ ~ BM yy ~ ,BN 2227 ~ . z ..Y~ e• ~ , , l ~ . ~~~f ao~3 • . . ~ . I afl5o W 2013 ~ • _ , • Av~ • ow •tobd_- L• ,r.+ . ~ ~ ~ ~..atp~:_ r' _ : ~ ` 4~~ • rf • I .~f ~ 1-36 'J~g ~~~~a 1Y • ~ . ~~y~~~l ~1-a ~,s' , ~ :,s. F12EE~hf.ANI . R44E R 45E 10: 3~ G ~ ■$4 12' 30 .`&5 2579 rr sw ~~917 O[3t] i EEF FREEVIAAN B MI ~ FAIRF7£L❑ 31 MI ~ SCALE 124 000 . M1LE rl¢grcal 5urvey ' ° ' - • i ~ ' - ~ ~ sam vEEr soua ~ ~0 ~ ~ 1 l _ 1000 0 INsraLL rrPE a DRrwEI,L ~ ro ;P 25- 25' ff I o 4 ID' ~r SWALE A DETAIL ~ S'WALrE' B DETAIL SCALF- P a 30' SCALE i r 30' . 3"~, rs• _1i rs' . I h . ~ 13• ~i. ~L r.~_ rs, ° ie-is•' 40 j. ~ sWALE D a FDETa rL SWAtE ,F 9 6 DETAlL SCALF-- 1' • 30' SC,4tE: f` • 30' - INSrALL T}'PJE A DRYWiELL - 25` 13 ~ ~ 0 3 t ~ ! a 2,1' aI ~ °a ~ 23' ~ . SWALE H DETAIL SG4LE, Pr . Za• 3r ~E C D+ETiQ IL SCALE: 1' -v ZD' ~r.J 20• DRArnr~GE EAsEMENr RoAD wA• POHa aarroM . St?D Pe7ND BOTTpM TYPE 4 METAL i}-Z' I~ I't1AfD SI@ES FRAME s GRAT ~ , • , . ~ . , . , ~ - '209" SWALE EL,EY 2029,89 ~ ~ A - SWALE SECTlON , scaLE.- 1" . 5•_0-' FQR SWALE.S A'~ d 9~ 5E,6 ~ET ~!L ~H1S PAGE ~ \ CC 1 B, DRAJhAGF EA5EMENT ROAfAWA7 15,0 POrll17 @CiTTfJY F . ~ m .SQD POA(D BD TTOY I AAW gJDES ' • ~ s ■ * • . i ~IL A '200' SWALE ~ ~ ~ TYAICAL SWALE WIO DRYW~LL ma r rv sr.AtE ~ ~ 2o' DRAIWAGE EAsEALcYT r rroAA) wA r~ , rs• Pa►fD aarroM ° saa PaND Oo rrQU N~ ~ 9AIlN~ ,ELEV AAED 1 B ~E 4 ,~TAt . rJC . 0.20' FRAME t GRA Ti \ ■14 I i 1. A HP "~iI 1209' S1YALf ;I EEV 203~. fS -t • ~ ~ ~ +"A!►i n ' ~ TYPE A DIiYW%7-L SEE QETAf1. Tii13 PAGE TYPJCAL SWALE SECT1ON r SWALE C 1 scALF: r~ • 5'-o" 4 . ~ rrPE 4 MEr,aL FRAMF & GRA TE ~ MaR TAR IN F'LACE . GRASSED SW,4LF 1 ~ I tt ~ I ` A i ~ j, I~. ~ ..r,..~. r!•.i~~lr~ri,~ Id/ • ~ rv,n.~A~ l~oi ~ 3 ~ 4 t 3 MQRT14RED , ~ . AAJUSTMENT ~i 2.-0.' ~ ■ J41NC'S 14 - CDNCR,ETF 5LAB - ~ (SEE NDTf Z ~ 2 % 2% ~ . - • . . . - - 'y . f~ ~ d . . . ~ • ` ' . ' , { ! f/,• ~ '4 •0 Q ~ ,I ~ ~ y 6~ i' • I I ~ S [J~~`. .L W +p 7 J ~6I r 1 s~ r + I~ e v ~ ~ ~ f 3WASHED hlA T2Jf?LIL GRA VEL BACICFILL rsFF No rE d v ~ p o e p d• ~ I`~ t L,L I c~ o. ,p vnd i~ • ~ ~ 1 5EE~'p GE • ` ~ P~C]R T5 s~ L`~ d FABRIC L1NFf~ M!N ~3MD~Q P4545 +~R APPRD~dED E(]L!lVALEIVT { . ~ , ia ~ r:• . - a"•r~ C 1 y' 6 i 44 ~.7 t • ~3'~ ~ d _ r ~ ~ uNDIs rvReED sOrL ~ GENER4L NC)TES: a. GRAvvEL $ACfcFIa.L ()vAN-rrI-r Fv~ ~RYWErs. TYPE "A" - 30 CUBIC YARbS WI+FIMIIM 142 'PQNS 2- CUNCRETE SL,Aa SH3ALL BE CLASS 3000 CX}NCRETE, 3. ADIllS'T'MENT BIACKS SFHAI..L BE {EME3fI' OQNCR.ETE. 4. PRECASl' RdSER MAY BE USEL) IN CO1VBINATIDN WMi C)R [N UEU (]F AD]f[JSTZNG BLDCK.i. ~R YRELL - TYPE iiA lr SCALE: . 2'-0„ ~ TYPF 4 METAI. FRAME 8 GRA TE MDR TAR W P[. A GE ~ _ ° GRA55ED SWALE •r. ~~li, I h f ti/ lL r,~•~~~,l~~rq ~ ~ 3 . - MORrAREa ADJusrMFnrr ■ 2'-0° i711VGS 4 * v 4" CDNCRETf StA6 i~ 2% • f 2% ~ (SFE N0 TE Z ~ - - . ~ e r_ + .t r .~r' . ■ ~ r • _ r„~ ~ ~ c. ~ y o • y ~ I 1 n r. v J OJ ~ { ~ G 1 0 o a • 4_. ~ ~ y u~, ~ ,s• 6 P ~ ` k 1 ' ~ F . ~ 7SEPAGE . P014 T5 0 I y Q.tl ' . w ~ ~ 7 ° N ~ ~ _ • k 4 • . 6 L4'~e ~ ~ ia - I ~ f, L ~ N J L 1 1" - 3" W/35f-!,E!'J l1I,4 TtJRAL i • 1 GR,4VEL BACfCFlLL I ` fSEE NOTE 0 ~ V... V 1• • . { ~ ~ d FABRlC LlAIER AMOCO r4545 OR ~ ~ , F~' . , ~ ~ ~ , • ' , ~ . M!N APPRDVED EQUIVALEIYT Jl 'r ~ i ~ ~ ~ Q • GENERt4.L NOTES: ~ UNDlSTURBED SDiL ~ GRAYEL SACKFILL QUANTITY FOR DRYWEI.L TYPE - 40 £VBIC YAFtDS MLLNIMIJMISfi TONS 2. CONCRETE SLA.BS SFiALL HE L`LA55 3000 GL]NCRETE DR YIYELL - T LPE „B r~ SCALE 1" ■ 2'-0" 3. Afl1[.15"IMENT SIACICS SHALL BE CEMENT C]NCRETF. 4. PRECA4T R1aER MAY BE uSF-i7 [N C4N4SINAMDN 1VTIN OR IN IIEU UF A0JU5'i'[NG 81ACKS 5. SPECiAI. BACK.FfI..L MA'FEAIAL. FUR DftYwEl..,I 55 5'F3f1I.i.. OONSIS[' OF WA5HEL] GRAVEL {3i{.ADEb FROM 1'TO 3" VYT'IFi' A hRAXIMUM ❑F 546 PASSI'NQ T"HE U.S. N4. 200 SCRF.FN, IU5 MEASUREH Bl' WF.IGH1'. A MA7CiML111+1 OF I091a iDF ',THE AOS3REGATE. A5 [v[FASUAEU 8Y WEiG}fiT, MAY BE CRI)5HEA OR FRACRJREf] ROC1L M REA+LATNTNG 9096 $'FU.'Ld. 8E NA'fURA.4LY OCCURR[NCr L1NfR11CZURED MATERIAL. 0 "IQWSTRING METHQD (TEN YEAR STORM DESIGN) PRQJECT: 93310 ,ETENTIaN BASIN AESIGN HASIN: A DE52GNER: G. MILLER NUMBER OF QRYinIELLS PROPaSED DATE. 09-Aug-94 0 5ingle (type A) 1 I]ouble (type B) Tatal Area (calc.) 1.86 (see £ollawing sheet) Tame of C'onc. (calc.) 12.29 (see foZlowing sheet) Camgasite "C" { Calc. } 0.43 (see following sheet) Time of Coric.{min } 12.29 Area ( Acres ) 1.86 C r F3Ctot' 0.43 Impervious Area (sq. ft. ) 13760' Volume PrQVided 208: 577 storm: 877 []utflow { cfs } I P►rea * C" Factor 0.81 #1 #2 #3 #4 #5 #6 #7 Time Time Intensity Q dev. V in V out 5tvrage Ync. Inc. (min.) (sec.) (in./rir.) (cfs) (cu. ft.) {cu. ft.) (cu, ft.) (#1*60) (A*G*#3) (Outf.*#2) (#5-#+5) 12.29 737.60 2.02 1.63 1615 737.60 877 5 300 3.15 2.57 1032 300 732 iQ 600 2.24 1.81 i453 600 853 15 900 1.77 1.43 1644 900 744 20 iz❑v 1.45 1.17 164$ 1200 498 25 1500 1.21 0.98 1710 1500 210 30 1800 1.04 (].84 1721 1800 =79 35 2100 0.91 0.73 1726 2100 -374 40 2400 0.82 0. 66 1754 2400 -646 45 2700 0.74 0.60 1752 2700 -938 50 3000 0.68 0.55 1784 3000 -1216 55 3300 0.64 0.52 1834 3300 -1466 60 3600 0.61 ❑,49 1896 3600 -1704 55 3900 0.60 0.48 201,0 3900 -1890 70 420{] 0.58 0.47 2083 4200 -2117 75 4500 0.56 0.45 2147 4540 -2353 80 4800 0.53 0.43 2150 4800 -2640 85 5100 0.52 0.42 2245 5100 -2855 90 5400 0.50 0.40 2280 5400 -3120 95 5700 0.49 0.4(] 2353 5700 -3347 100 6000 0.48 0.39 2421 6000 -3579 IRAINAGE PC]ND CALCULATIONS Required grassy swale pand starage valume = Impervious Area x .5 in.] 12 in./ft. = 573 cu. ft. prvvided: 577 cu. ft. QRYWELL hEQUIREMENTS - 1[] YEAR DESIGN STC}RM Maxzmum storage required hy Hmwstring= 877 cu. ft. provided: 877 cu. ft. nepth ❑f storage swale = 0.76 ft Number anc3 type af Drywells Required = 0 Single 1 ]]auble TIME OF CC]I+iCENTR.AT iON ( rninutes ) TC (vverland ) Tc (gutter) et = 0.15 La 445 z l - I Li(A) = 120 zz = 50 N(A) = ❑.4 e o S(A) = 0,0039 n = 0.016 s = 0.0084 Tc (A) = 8,08 d = (].19 ,I(8) = v Tc (gu) = 4.21 .:(B) - 0.4 Tc(A+B) = 8.0$ S(B) _ 0.15 Tc[tot.] = 12.29 Tc ( B ) = 0.0 Intensity 2.02 Areas "tC" A*C A = 0.92055 WP = 9.7706 A 0.(}0 0.25 Q R= 0.0942 8 0.28 ❑.90 0.252 V = 1.76 C 0.12 0.8E7 0.096 Tc(gu) = 4.21 ❑ 1.14 ❑,15 0.171 Q(est) = 1.62 E 0.32 0.90 fl, 28$ 0.00 0.00 9 Holding = 15.85 0.00 0.00 n Tatal A Comp "C" 1.86 0.43 Q=C*I*A= 1.63 Q(est.) = 1.62 A: 0 sq ft undeveloped meadaws/pastureland B: 12,250 sq ft existing and proposed structures Assuming 7 new homes at 1,750 sq ft each . 5,227 sq ft existing and prvposed drives and walks Assuming 20 wide drives and walks frar 7 hvmes D: 49,558 sq ft existzng and proposed grassed lawn areas Assuming front and rear grass yards on 7 homes E: 13,890 sq ft garaposed roadway e 3OWSTRING METHOU (TEN YEAR STORM DESIGN) FRQJECT: 93310 DETENTTaN BA53N DESIGN HASIN: B DESIGNER: G. MILLER NUMHER OF DRYWELLS PRdPOSEa DATE: 09-Aug-94 0 Single (type A) 1 Dauhle (type s) Tatal Area {cale.} 2.12 (see follawing sheet) Time af Cvnc. (calc.) 18.69 (see faZlawing sheet) Gamposite °C" (calc.) 0.40 {see falZawing sheet} Time of Canc. (min) 18.69 Area (Acres) 2.12 C' Factor 0.40 Impervivus Area {sq. ft.} 14160 Volume Prov3ded 208: 637 storm: 945 Outflow {cfs} I Area * C" Factor 0.86 #i #2 #3 #4 ^#5 #6 #7i Time Time Intensity Q dev. Vin V out 5tarage Inc. znc. (min.) (sec.) (in./hr.) (cfs) (cu. ft.) (cu. ft.) (cu. ft.) (#1*60) fA*C*#3) (outf.*#2) (#5-#6) 18.E9- 1121.34 1.53 1.31 1972_^r1121.34 ~y850 5 300 3.18 2.72 1094- 304 794 1[] 600 2.24 1.92 1541 600 941 15 900 1.77 1.51 1826 900 926 20 12[]0 1.45 1.24 1962 12[]0 762 25 1500 1.21 1.04 1347 1500 447 30 18(]0 1.04 0.89 1941 1800 141 35 2100 0.91 0.78 1932 2100 -168 40 2400 0.82 0.70 1951 2400 -449 45 2700 0.74 0.63 1951 = 2700 -749 50 3000 0.68 0.58 1967 3000 -1033 55 3300 0.54 0.55 2016 3300 -1284 60 3600 ❑.6i 0.52 2078 3600 -1522 65 3900 ❑.6a 0.51 2198 3900 -1702 70 4200 0.58 0.50 2273 4200 -1927 75 4500 0,56 ❑.48 2339 4500 -2161 80 4800 0.53 0.45 2349 4800 `-2451 85 5104 0.52 {].44 2438 5100 -2662 90 5400 0.50 0.43 2473 5400 -2927 95 5700 0.49 0.42 2549 5700 -3151 100 6000 (].48 0.41 2620 6000 -3380 I~ ',RAINAGE POND CALCLILATZ{]NS Required grassy swale pond storage volume = Tmperva.ous Area x .5 in. / 12 3.n . / f t. = 590 cu. ft. proaided: 637 cu. ft. DFtYVdELL RE¢[JIREMENTS -10 YEAR I3E5IGN STORM Maximum st❑rage required by 8awstring= 941 cu. ft. provided: 945 cu. ft. Depth of storage swal.e = 0.74 f t Number and type af Dx-ywell.s Required = ❑ 5ingle i aoubie TzME OF coN~~~TRATioN ( minutes ) Tc (averland) Tc (gutter) Ct = 0.15 L2 = 130 Z1 - 1 L}.(A) = 395 z2 = 50 N(A) = 0.4 B = ❑ S(A) _ 0.0033 n = 0.016 s = 0.008 Tc (A) = 17.37 d = 0.18 ~1(B) = Q Tc (gu) = 1.32 i(H) 0.4 Tc(A+B) = 17.37 S(B) - ❑,I5 TC{ tot. } = 18 . 69 'Fc (a) = 0.0 Intensity 1.53 A,reas - 'iC" A*C A = ❑.7988895 ' WP ~ 9.1021 A 0.00 0.25 0 R = 0.0878 B 0.24 0.90 0.216 V = 1.64 C 0.10 0.8[] 0,08 Tc(gu) = 1.32 n 1.39 0.15 0.2085 Q{est) = 1.31 E 0.39 0.90 ❑.351 0.00 0.00 Q Hvlding = . 4.63 0.00 ❑.fl❑ 0 Tatal A Comp "C" 2.12 0.40 Q=c*z*A= 1.31 Q(est.) = 1.31 A: 0 sq ft undeveloped meadows/pastureland B: 10,500 sq ft existing and prvpvsed structures Assumnig 5 new favmes at 1,750 sq ft each 4,356 sq ft existing and propased drives and walks Assuming 20 wide drives and walks for 6 homes D: 60, 548 sq ft existing and proppsed grassed iawn areas Assu3n3ng front and rear grass yards an 6 homes E: I6,990 sq ft proposed roadway 0 IOWSTRING METHOD (TEN YEAR STaE7M ❑ESIGN) PRQJECT: 93310 iETENTIDN BASIN DESIGN BASIN: C DESIGNER: G. MILLER NUMBER vF ❑RYWELLs PRvPasEa DATE: 09-Aug-94 1 5ingle (type A) Q❑ou)ale (type H) Tatal Area {calc.} ❑.21 (see fvllawing sheet) Time of Conc. {calc.} 5.40 (see following sheat) Cvmpasite "C" (calc.) 0.40 (see following sheet) T3me r f Conc.(mira ) 5.00 Area (A,cres) 0.21 C' Factvr 0,40 Impervious Area (sq. ft.) 2160 Valume Provided 208: 90 sto_rm: 135 Outflaw (cfs) ❑.3 Area * C" Factor ❑ . 08 #1 #Z #3 #4 #5 #fi #7 Time Time Intensity Q dev. Vin V aut Starage Inc. Inc. (min.) [sec.) (in./hr.) (cfs) {cu. ft.} {cu. ft.} (cu. ft.) (#1*60) (A*C*#3 ) (dutf . *#2) ( #5-#G ) 5.00 300.00 3.18 0.27 107 90.00 17 5 300 3.18 0.27 107 _90 17 10 600 2.24 0.19 132 180 -48 15 900 1.77 [].15 149 270 -121 20 1200 1.45 0.12 159 360 -201 25 150[] 1.21 0.10 163 45{] -287 30 1800 1.04 0.09 lfas 540 -374 35 2100 0.91 0.08 168 630 -462 40 2400 0.82 0.07 172 720 -548 45 270[] 0.74 0.06 174 81-0 -636 50 3000 0.68 0,06 177 300 -723 55 3300 0.64 0.05 183 990 -807 60 3600 0.61 0.05 190 1080 -890 65 3900 0.60 0.05 202 1170 -968 70 4200 0.58 0.05 ziv 1260 -1050 75 4500 0.56 0.05 216 1350 -1134 so 4800 0.53 0.04 218 1440 -1222 85 5100 0.52 0.04 227 1530 -1303 90 5400 0.50 0.04 231 1620 -1389 95 570(} 0.49 0.04 239 1710 y1471 100 5000 0.48 0.04 246 1800 -1554 ~ RAINP,GE POND CALCLILA,TI(3N5 Ftequired grassy-swale pond storage valume = Imper°crious Area x.5 in.,i 12 in./ft. = 90 cu. ft. proaided: 90 cu. ft. DRYWELL RE4[IIREMEN'I'S - 10 YEAR DESIGI+1 STQRM Maximum stvrage required by Bawstring= 17 cu. ft. provides3: 135 cu. ft. Depth o£ starage swale = 0.75 ft Ait.mber and type af Dr°ywe11s Requix'ed = 1. Single 0 Double TIME OF CQNCENTRATION (minutes) Tc (overland) Tc ( gutter ) ct = 0.15 L2 = 105 ZI - 1 Lx(A) = iQ zz = 50 N(A) - 0.4 B _ 0 S(A) = 0.008 n = ❑.016 s = 0.408 Tc (A) _ 1.47 d = ❑.1{] 13.(8) = ❑ Tc {gu} y 1.58 '(B) _ ❑.4 Tc(A+B) = 1.47 S(B) = 0.15 Tc(tot.) = 5.00 Tc { B } = 0. fl Intensity 3.18 AreaS ,1cfi p,*C A _ 2449aZ iATP = 5.0396 R 0.00 0.25 0 R = 0.0486 B 0.00 0.90 9 V = 1.11 C 0.00 0.80 0 Tc(gu) = 1.58 D ❑.].4 0.15 0.021 Q{est} = 0.27 E 0.07 0.90 0.063 0.00 ❑ . (3a ❑ Halding = 3.74 0.00 a.C}(] d Tot al A Comp "C " 0.21 0.40 Q-C*I*A= 0.27 Q( est. ) Y 0.27 A: a sq ft undevel.oped meadorasIpastureland H: ❑ sq ft existing and proposed structures Assuming 0 new Yromes at 1,750 sq ft each . . 0 sq ft existing and progvsed drives and walks Assuming 20 wide drives and walks fvr 1 hvme 6,098 sq ft exiating and praposed grassed lawn areas Assu.rnirag frvnt and rear grass yards on Z hvme E: 3,060 sq ft prvpased reaadway D pWSTRING METHOD (TEN YEAR STORM DESIGH) PROJECT: 93310 ETENTI❑N BASIN DESIGN BASIN: D DESIGNER: G. MILLER HUNlBER ❑F DRYWELLS PROPOSED DATE: 09-Aug-94 ❑ Single (type A) a Double {type H} Tatal Arsa (ealc.) 0.13 (see fallawing sheet) Time of Ganc. (ca1c.) 5.00 (see fo11Qwing sheet) Cnmpvsite "C" (calc.) 0.50 (see £o1lvwing sheet) Time of Conc. (min) 5.00 Area (Acres) 0.13 C' Factar 0.50 ~ Impervious Area (sq. ft.) 2520 Volume Provided 208: 105 stvrm: 190 Outflvw (cfs) ❑ Area * C" Factvr 0.46 #1 #2 #3 #4 #5 #6 #7 Time Time Intensity Q aev. V in V out 5torage Inc. Inc. (min.) (sec.) [in./hr.) [cfs) (cu. ft.) (cu. ft,) (cu. ft.) [ #1*60) (A*C*#3 ) (Outf. *#2 ) (#5-#6) 5.00 300.00 3.18 (].21 82 ❑.0p 82 5 300 3.1$ 0.21 $2 C] $2 10 600 2.24 0.14 101 ❑ 101 15 900 1.77 11 114 0 114 20 1200 1.45 0.09 122 d 122 25 1500 1.21 0.08 125 Q 125 30 1800 1.04 0.07 128 0 128 35 2100 0.91 0.06 129 ❑ 129 40 2400 0.82 0.05 132 a 132 45 2700 0.74 0.05 134 0 - 134 50 3000 0.68 0.04 136 0 136 55 3300 0.64 0.04 140 0 140 fie 3600 o.fl 0.04 145 0 146 65 3900 0.60 0.04 155 ❑ 155 70 4200 ❑.58 0.04 161 0 161 75 4500 0.56 0.04 166 o 166 sa 4$00 0.53 0.03 168 a _ 168 85 5100 0.52 0.03 174 a 174 90 5400 0.50 0.03 177 ❑ 177 95 5700 0.49 0.03 183 ❑ 183 100 6000 0.48 0.03 189 0 189 RAINACE POND CALG[FLATIDidS Requires3 grass~ swale pond storage valume ~ Imperviaus Area x, 5 in.1 12 in. {ft. = 145 cu. ft. prnvi.ded : 105 cu. f t. DRYWELL REQUIREMENTS - 10 YEAR ❑£SIGN STORNI Maximum storage required by Bflwstring= 189 cu. ft. provided: 190 cu. ft. Depth af starage swale = 0.90 ft Number and type vf-Drywells Required = 0 5ingle 0 Dauble TIME QF CQNCENTRATIDN ( minutes ) TG ( Overland ) Tc ( gutter ) ct = 0.15 L2 _ 140 zZ = I LI(A) = 10 Z2 = rQ N(A) - 0.4 H = 0 S(A) - 0.00$ n = 0.016 s - ❑.008 Tc (A) = 1.47 d = ❑.{]9 ,1(B) _ ❑ Tc (gu) = 2.25 --(B) - 0.4 TC(,A+B) = 1.47 S(B) = 0.15 Tc(tot. ) ~ 5.00 TC (H) - 0.0 Intensity 3.1$ Areas "C" A*G A = ❑.2d19855 WP = 4.5768 A 0.00 4.25 0 R = ❑.0441 B 0.00 9 Q fl V = 1.04 C 0.(}0 ❑.S0 0 Tc(gu) = 2.25 I] 0.07 0.15 0.0105 West} = 0.21 E 0.06 0.90 4.054 ❑.0D ❑,00 0 Holding = 4,99 0.00 ❑.[}a Q Total A Cvmp "C" ❑.13 C].5CI Q=C*T*A= 0.21 Q{est. } = 0.21 A: ❑ sq ft undevelvped meadows/pasturel.and B: 0 sq ft existing and prapased structures Assumang 0 new hflmes at 1,750 sg ft each . ❑ sq ft existing and proQosed drives and walks Assuming 20 wide drives and walks fvr 1 hvme D: 3,049 sq ft exista,ng and propased grassed lawn areas Assuming frorat and rear grass yards on 1 tnome E: 2,520 sq ft propdsed raadway 2 L4uga QRoP 6,9t-cL)t-R-nonJ5 la - STA 3+$5 Timberlane Gutter El. = 2029.05 - Z" depressivn "208" Floor E1. = 202$.55 Gutter Sl,ape = 0. $4% Area flawing ta curb drop = 0.76 AG t vf tvtal area = 41% Q = 0.41 x 1.63 = 0.67 CFS estimate d of compositi.on section using 16 . fi7$ cross slape ~ a= C(n x Q)I(0.56 X z xNSo)] d= [{0.014 x 0.6711(0.56 x 6.00 x10,0a$4)] = 0.27 FT . capacity/FT = 0.18 CFS/FT (figure 2a) L( req. ) = 0. 57E0.18 = 3.72 FT Therefore, pro❑ide Qne curb drop @ 3'-9" 2a - STA 2+25 Tim]berlane Gutter El. = 2027.71 - Z" depression "2{}8" Floor EI. = 2027.21 Gutter 5lope = 0.84% Area flowing to curb drop = 0.51 AC . % of total area = 27$ Q = 0.27 x 1.63 = 0.44 CF5 estimate d❑f composition section using 16.67% crnss slope ~ d= C(n X Q)l(0.56 x z x VSo)1 d = [(0.014 x 0.44)/C0.56 X 6.00 x Va.0084s] = ❑.23 FT capacity/FT T 0.16 CFS /'FT (figure 2a) L(req. ) _ [].44/0.16 = 2.75 FT Therefore, provide orae curb drop @2'-10" 3a - Sta 1+06 Timberlasze Gutter El. 2026.89 ' "205" Flavr EI. = 2025.89 Law Point 0 = 1.63 CFS use Gurb drop w/ CapacitylFt = 0.60 from figura 3a L (req ) = 1. 53,10 . 6d = 2.72 FT Therefare, provide ane curb drop @ 2'-10" 0 lb - STA 4+65 Timberlane Gutter El. = 2029.73 - 2" depression 11208" Flovr El. = 2029.23 Gutter SgaQe = 0.84* Area flowing ta curb drap = 0.55 AC $ of tatal area = 26# Q= 0.26 x1.53 = 0.40 CFS estimate d Qf compasition section using 16.67% cross slflpe ~ d= [(n XQ)I(Q.5b x a x~So)j d= [(0.014 x❑.40)/(0.56 x 6.00 x10.0084)] = 0.22 FT capacity/FT = 0.14 GFS/FT (figure 2a) L(req- ) = C]. 4C]10.14 = 2.86 FT Therefore, grovide ane curb drop @2'-11" 2b s ST,A 2+95 Timberlane Gutter ET. _ 2028.30 - 2" r3epressian "20$" Flovr El. = 2027.80 Gutter Slape _ 0.84% Area f lawing tv -GUrb drvp =0.55 AC - % of t❑tal area = 264 Q= 0,26 x1.53 = 0.40 CFS estimate d af compositian section using 15.67t cross slope ~ d = [(n x Q)/(p.SC x z xISv)I d = L(0.014 x 0.40)/(0.56 as 5.00 x10.0084)] = 0.22 FT capacity/FT = 0.14 CFS/FT (figure 2a ) L(req.) = ❑.4Q1Q.14 = 2.$6 FT Therefflre, provide ane curb drvp @ 21-11" 3b - Sta 1+06 Titnherlane Gutter E1. 2026,$9 "208" Floor El. = 2025.89 ' Lpw Point Q = 1.53 CFS use curb drop w/ Capacity]Ft = 0.60 from figure 3a L { req 1. 5310. 60 = 2.55 FT Therefare, prvvide vne curb drap @ 2'-8" 0 iG - sta 1+16 Alki Avenue Gutter El. 2031.46 "208" F1Qor E1. = 2030.46 Lout Point Q _ 0.27 CFS • use curb drap w1 CapacitylFt = 0.37 fram figure 3a L (req) _ ❑.27/D.37 = ❑.73 F"T Therefore, prowide one curb drvp @ k " -p" ld - SZ°A 3+25 Alki Avenue Gutter El. = 2031.03 - 2" depression "208" Floar El. = 2030.53 Gutter Slope = ❑,84% A,rea flawing t❑ crarb drvp - 0.13 AG % of total area = 100* 0 = 1.00 x 0.21 = 0.21 GFS estimate d Qf campasition section using 15.67% crass slape ~ d = [(n x Q)I(0.56 x z x tiso)l ~ a= U0.014 x0.21)1(0.56 x 6.00 x 10.1000)] = 0.17 FT capacity jFT 12 CFS/FT (f igtaz'e 2a ) L(req.) = 0.21/0.12 = 1.75 FT ` Therefore, pr'ovide one curb drop @ 1'-10" ` Q DEPTH OF FLQW - y - FEET ~ ,01 aa 03 .Os as 06 oe .10 .a .a s .s .s .7 .a 9 1.0 ~ , • 1_ _ 1_ I ; I i . 1-° ~ ~.4- G t 7T"i ~ ~ ~ ~ ! 1~ o I I ~ ~Tr TI ~ ~ a ~ I +-C L q ~ ~ o~ • .,c ~ ~ g ~ g ♦'4 a V I~~ ' ~ ~ ~ I 'h, L9 1~ i, r i 1 i j'.~7a ~ ~ ' ~ ~ i .06 -os 04 03 ~t7 ~ ~ 1 ~ ~i I 1 I I ! I 1 l 1 I i ~ ox c l~I ~ E ~ • I~I t I~ ~ I I 1 I ~ ZLL I ~ I I I I ~ I I~~ i ~ I ~ p , . 03 llrl_~ 10 I I I ~ ~ { a ) DISCMARGE PER FD❑7 OF ~ + (3/v f~ LENGTH qF CURB QPENING INLETa WHEN 1NTERCEPTING 3 100 °Ia OF GUTTER FLL31Ai . Q (b) PARTiAL INT€RCEPTION 0/ l ~ ~ I Y ~tATIO FDR ~fNLETS OF ~ . LENCTH LESS THAN L(3 ,o i 1 ~ e 1,I I , : i I [ l I .[]S 06 .08 .1i} 2 .3 .4 .3 A .8 IA u r- Z6 L/La CAPACrrY vF cvRB QPENING INLETs ON CDNTTNUOUS GRADE FIGURE 16 - MAILING AD[3RES5• O'FF3CE Lf7CAt10N• FJo BQX 1$i79 N 10115 PlEWPQFiT HVYY ~ SPQkANE. WASHIHGit]N 992119 SP(]KAME. WASNfNG7C7N 99216 PHQPIE (5Q9) 457-5261 FAX (509) 4675262 J. PAUL RAN[ER & A5SDC1ATES, INC. C[7NSULTfNG CfVIL EHGINEERS & LANa St1RaEYORS WR$lilN[;TpN • IRAHO • M(lN7ANR NEVA{!A • CALBFClRNIA 6REGflN Praject No. 93310 March 28, 1994 Draa.nage Study for Valley View Estates Partivn Qf 5WI/4 C}f 5eCt3.0Y1 l3r T2$Nr gi44£, W.M. Spokane County, Washingtc+n Prepared for: Shamus Reilly E. 15815 Valley Way ' V'eradale, WA 99037 Phone : 244- 6 81 0 OFFfGIAY PLhXIC D[3C4.1MENT ~1 - wA s - ~ ~..t,,f~ ~ 5P[}KANE CULINIY ENGffrlEER${'liFFiCE k ~i 1~ ~JI IPAL ~ PRL,IECT 4 ~ SBMlTTAL 4 • ! ~ i7n: sf$R7 r~ 'r ~ 0~`~1STsa 1-40 RETUAHTO CiVNTY FfwLaINEEF! RECEIVED FxFE~~~ iiOv t9, tv94 ~ - aU N 0 1 1294 - sPo~~ COUNTr ENGINEER 0 PROJECT ANIa SIT'E DESGR3PTI{3N Ttte prop[3sed plat of Valley View Estates is a 13 lat single family residential plat ta be ccanstructed on apprvximately 4.83 acres in east 5pokane County. The site is situated on the narth side of Valley Way and west of Moore Street in the 5W1/4 of 5ection 13r TZSAf, R44E, W.M. Spmkane Cvursty. The propasea site is generally fiat with the terrain slaping tv the svuth. The slopes vn the site run between 0 .5% and 2%. The soil in this area is genera].ly comprised af Garrisan gravelly iQam (GgA). This svil is excessively drained and has raQid permeability. Surface run-aff is slaw and the hazard of soil, erosion is slight. 02" METH[]D OF M,ANAGEMENT ~ The prvpvsed plat of Valley Vxew Estates has t~ao separate hasins reated by ths planried internal rvad. A11 stormwater will remai -site because the irnprovee,ments to Alki Avenue as wel,l as the widening of Valley Way. A low point in the westerly section of Alki Avenue wil1 allow a"2a8" 5wale and type A dryweXl ta control svme run-off from ttae nvrthern sectian af the site, which is mostly imperviaus area frvm the imprvvement of Alki Avenue. The rest of the on-site staranwater wi11 run south and be Collected in twv "20$" swales with type B drywells, one an either side Qf the propvsed new anternal soad. AnAtmrmwater created from tlhoomprovements af Valley Way will alsa flow t❑ these twv swales and be callected thera. L7evelapment of thi,s plat shauld have little vr nQ effect on the drainage flpw pattern in the area. ~ - SPOKAPVC COCJNIY, VvASfiINGTON - 5f-{EEZ NUME . 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I a ~,a E R d5E 10" - , • 485 f~R~~nr~sre~ ~ ? g90 Do0 F EE7 FREEMAN 8 M1 sgq 12' 30 2579 rr sw Farxpje[D sa Mi SCALE 1 24 000 >Mil-E , ° a1QgIca4 SurveY ]i%~4 ?of7Q 3~ 1000 50W C~ -70~D fEET _ y i r ~ I 8111C(]!NG SETBACIC Allll7 DRAllitlYGE EA&EMEHT LtAtE 132.00' 0 a 'JD• ~ Qla, ARDP -STA f►a ~ ELE'4+ f1P . 9 ~JPBP q~ ~ ro TYPE F DRYWELt ~r F iYt Tl'PE 4 AiETAL D . ~ "RAME C7 . -.s E4E Fr.7 . BIJftD11YG SET@A GK L INE I 25' STA 0. ~ ~ 30' _ QRAINA F ~ E'ASEAf~ 7 ~f 'L . . . _ . . - • - - - s'FurenaF acoe►rsIrIoH AREa , r io1.TO• ~ 10• Rfw AEGrGAtI0N ~ - VA'LLEY W AY + ~ ^A CSWALE . ~r euItorwO aErsAcK aMt+ ~ DtaAinrAsE E,esEaFNr tIKF ~ • 143.P0' ~ i ~ • ►oB8' ~ - °a 1 2s' c PRaP ~ I SFA I#OAA~ E1.EV B$B 9 ~A a ,ELEY•; PP ~ m 6A ~ ~ ~ O ~ DRrw~,~a ~ i . . . . . ~ . wi rr~~ ~ ~r / $s• ~ aurLarHS sFrea crr Lin►E FRAM EL . J: '~i~ 3d~' STA ~ 1?R►iTNAGF EASEMENT 1° ar~, . ~ 1 . ~ :f .F11T!/fiE AGf,r1I1SlTlON AREA in ' 115.57' 0 !R?' FJW LrEDIC,dTIDN ' r VALLEY WAY + - SWaLE ,10 ~ _ ~ ~ rYPE a DRrwEC.t w/ rrPf 4 MErAt I FRAA1E AAll? GRATE 1 Ei'EY 2030" srA 1008. R7' 28° ~ ~~g1°~°e'~" r~ VENUE ELE'N 203l.9P ROADi4'A Y ~~r.~q • v ' 1208• swatE s, EtEv 2o29.r9 ADIRAIMAGE ta• i ButaDrrrG sErae~a~c cIn►E EasEE . . . . I ~ a ~ J a ~ a " a y ~ ~ . C • 30, 1."~2.00' SWALE C - ~ 3-r ~ J WoQ' L,L A & B Y ~ JO' pR{YfN►4GF FASr+SfENT ROAAWAY _ 23' P,oNa BOTTOIV ~ ~ TYPE 4 METAL ~ FRAIKE 4 GhiA T ~ • 5• • i• R! NI• • •elf+~ ~ -foA ~ ;L ELFV 38 p ~ ei S'GD 0 Pt71O sraT're7 e o ~ , ' ~C-= c . T'YPE 6 ARYIyELL • } ti ~ J W14LE C sn ti, W Pp' PRAIAtAGE EASEMENT ROADWAY ~ 13' PL1ND 8fl T TRAr I~ ~ 4' BaT f ~ SL CPlf Tl'PE 4 11FTAL ~ FRAAE & 6Rr6 TE . '200' S1vAtE ~ i. EZE N 2028.79 D ~ ~s o ~ p o P iPPaif . • i i ►pelF : . rrPF A uRrwEr.r. ~ TYPE 4 MFTAL Fl4AME 8 GRA TE I IV1OR TpR IN F"L A CE , ~ GRASSEfl SWALE ~ ~~1f' ~~Y►i' r rKl ~I ~l+~ ~ o ~ ~ • ~~._,~~_~~f...~. ~ra ~ 3 ARED „F MORT ADJL►57M~NT 2,_ 0.. RINGS E ~LAB . , ~ n~ 2% ~ r • ~ ' ~ 4•: 6' ~ ~ ~ ~!F vo'" ,yv`•s ~r3 ~ •d , ` ~•I d ~t ~ ~'~'r.' ~ ~ c ~ y~ 3" WASI-fED NA7~C1R,4L ~ ' , " GRA VEL BA CKF1LL 1` ' I • o a a y~Q ry (~dC~rE i►' i1 I {a • ~ 4 j L o ~ I L1 a• p U, ~y i,G ~ r Lv J^EEf Q C7E +tf1 , ~ PQ14 TS ~~49R1C LINEF7 ,dMOCU P4545 C?f? v ti. i.a w ~ M1N AP~R~1 VFD EQUIVALENT e ~ ` [ ; • ■ . t ~ 1e 1 ' ■ . . i i_. e ~ i• r yi i Q' r ~+UNDISTLIRBED SQ1L ~ GENERAL NCaTES; 1. GRAVEL SACKFILL QUAM'TTY FDR E3AYWELL 'fYPE "A," - 30 CLIBIC YARDS M3NIMUM 1 42 TONS 2. CONCRETE 51AB SHAT..L BE. CLAS5 3000 QONCRETE. 3. 11DJUST'lVEENT BLOCXS SkiAI.L BE CEMFNT C30NGRETF. 4. pRECAST RISER MAY BE USEI] I1v OaMIDINA310N V4TM OR IW L.TEU C3F ADJJL]STWG HLaQKS. ~R YWELL - T}rPE r~A" F~.ALE. Y i 2f-0" l~ u ! ~ rrPF 4 MErAL FRAAE i GRJlTE I ~ AIaR TAR lN P'L ACE GRIISSEA SWALE T■~7 rn ~/ARQ~/ 7 dirRG~r1J■~r }~i~r,7~~ 7lfIL7~ P • _ 2.°0.. ftIMGS r ~ 4" CONCRET`E SLAB iy 2~,~ 2% ~J ISFE NOTE 21 • f . : s • ~ . y .a .t ~ ~ _i ~ -h ~ a - ~ ~ ~ • ~ r Y G(!y~ 0 v 30 ~ aAC7 • I'A. ''Er ~o~ Gwi,+..i]c,~, ~ y~ d 1,~ } ' ~F Y ti~~ 4 UO • ■ s pJ ~ y I ~ c. ~v 0 036 G ~ , F ~ I•[ ~a~ 4 ~ r ~ 7¢ o~r u . p'. u~ a tl a • • ~ ~ k • n ~ u ~ ! e 4a Aj!r ~ G S~E~M'NL ;Y POR T5 G ~ F' a r V.V ~ C " p i • ~ V 1 r s'yir ! ~ , ~ ` ` J f.. ~ ~ ~ ~ SHED MATUR.+Q r ~'7 RA VEL BA 4 KFI4 L rsEE rra TE a v k u ` . • -~4 _ f ~ 4 v ,,I F ~ ~ ~ ~ u W . a f ~ I I i ~ Y k' u FABR1C L!N'FR AMt]CD •4545 OR PPRDVED rE~QLlIVl.iLENT _a M!N ~4 ~ • . ~ ~ - i - ° ~ ~ ~~:c ~ • ~ ~ r! a. ' o ~r ~ .•9 ~ ~~~,a GENERAL NOTES: LWDjs rUaaFn soIL ~ 1. G'RAV'EL SACKFILL QUAMZ'Ilr FOR DRYWELL T1'PE "B" - 40 C[.IBIG YA1t.D5 MINFMUM156 TUN5 2. C]DNCREfE 5LAS5 5HA1.L13E CLASS 3000 CONCRETE ~ELL - TYPE 'fB ►r $CALE 1" ~ 2'-0. 3. ADJUMENT BiACKs SHALLL BE CEMENT CDNCRE`i'E 4 PRECAn RlSER MAY HE USED [N COMBINA7'lClN WITH OR IN I1`ELl OF AI?I'1]5T'iNG S1ACY.S 5. SPECLkL $ACKFILL ML4TERLAT. FOR DRYV►'ELLS SF3AI.L _ C(3ht5i5l' GF VI+ASHFID GRAVEL GRADF.3) FRC1M 1" TO 3" WYTH A MA,X3MUM OF S% PAS5INf3 T7°!E U.5 NQ. 200 5CR'EFlrf, a,S MEASUitELD SY WEIGHT, A MAXIMUM OF 10% . pFIME AOGREGATE, AS MEASUAEG 8Y WESGH'C, hRAY BE . CRL1SHED flR F6UCTUREI] RC1CK. 7'HE RF.MA3'N[NG 9096 - ~ StiALL SL' NATJRALLY OCCURRING UNFiU1CTURM MA'TEERIAL. j 4L ~ ! 7 _ DWSTRING METHDD (TEN YEAR STVRM DESFGN) FRQJEGT. 93310 ETENTIQN BASIN DESYGN BASIN: A DESIGNER: G. MILLER NUMBER DF DRYWELLS PROPQSED QATE: 15-Apr-94 ❑ 5ingle (type A) 1 aouble (type B) Tvta1 Area (calc.) 1,86 (see follflwing sheet) Time of Conc. (calc.) 12.69 (see foll❑wing sheet) Compasite "C" (calc.) 0.43 (see fvl1owing sheet) Time vf Cflnc. (min) 12.69 Area (Acres) 2.86 C' Factar • 0.43 zmperviaus Area (sq. ft.) 13800 Volume Qravided 208: 575 stom-rn: 875 Qutflaw (cfs) 1 Area * C" Factor 0.81 #1 #2 #3 #4 #5 #6 #7 Time Time Iratensity Q dew. N in V out Starage Inc. Inc. (min,) (sec.) {in./hr.) (cfs) (cu. ft.) (cu. ft.) (cu. ft.) (#1*60) (A*c*#3) (Dutf.*#?) (#5-#6) 12.69 761.35 1.99 1.60 1635 761.35 875 5 300 3.18 2.57 1032 300 732 1{] 5[]0 2.24 1.81 1453 600 853 15 900 1.77 1,43 1655 900 755 20 1200 1.45 1.17 1707 1200 507 25 1500 1.21 0.98 1717 1500 217 30 1800 1.04 0.84 1728 1800 P72 35 2100 - 0.91 0.73 1732 2100 -368 40 2400 ❑.82 0.65 1759 2400 -641 45 2700 0.74 0.60 1767 2700 -933 50 3000 ❑.6$ 0.55 1788 3000 -1212 55 3300 0.64 0.52 1838 3300 -1462 60 3600 0.61 0.49 1900 3600 Y1700 65 3900 0.60 0.45 2014 3900 -1886 70 4200 ❑.58 0.47 2087 4200 -2113 75 4500 0.56 0.45 2151 4500 -2349 80 4800 0.53 0.43 2154 4800 -2636 85 5100 ❑.52 0.42 2249 5100 -2851 90 5400 ❑.5Q 0.40 2283 5400 -3117 95 5700 _ ❑.49 0.40 2355 5700 -3344 100 6000 0.48 0.39 2424 6000 -3576 ~ ~ RAINAGE P❑NR CALG[]LATIONS Required grassy swale p❑nd storage vv1ume = Impervxvus Area x .5 im. / 12 in. /ft. = 575 Cu. ft. prDvided: 575 vu. ft. DRYWELL REQ[]IREMENTS - 10 YEAR DESIGAT 5TC?RM Maximum storage required by Bowstring= 875 cu. ft. grovided: 875 cu. ft. aepth of storage swale = 4.76 ft Number and tXpe of Drywells Required _ ❑ Single 1 Qauble TIME vF COIdCEN'I'RATIQN ( ma.nnstes ) Tc {overland} Tc (gutter) Ct = 0.15 L2 = 460 ZI - 1 Ll(A) - 140 zz = 50 N(A) - 0.4 B = o S(A) = 0.005 n = 0.016 s = 0.008 Tc (A) = 8.23 d - 0.19 ,1 (H) = 0 Tc (gu) = 4.46 A(B) _ 0.4 TC(A+B) = 8.23 S(H) = 0.15 . Tc(tot.) = 12.69 Tc (H) ~ 0.0 Intensity 1.99 Areas liC„ A*C A = 0.92055 WP ~ 9.7706 A 0.00 0.25 v R= 0.0942 B 0.28 0.90 0.252 V _ 1.72 C 0.12 ❑.80 ❑.096 Tc(gu) = 4,46 p 1.14 0.15 0.171 Q{est) = 1.58 E 0.32 0.90 0.28$ 0.00 ❑.9D 0 Holding = 16.39 0.00 ❑.0D 0 TOtal A LC]I[1p re Cri 1.$6 0.43 Q=C*I*A= 1.60 Q(est.) 1.58 A: Q sq ft undeveloped meadows/pastiureland B; 12,250 sq ft exista.ng and proposed structures Assuming 7 new homes at 1,750 sq ft each ;F 5.227 sq £t existing and prapvsed drives and walks Assuming 20 wide drives and walks for 7 homes D: 49,65 8 sq £t existing and praposed graased lawn areas Assuming front and rear grass yards on 7 hflmes E: 13,800 sq ft proposed raadway 1 .f _ iOwSTRING METHOD {TEN YEAR STORM DESIGN} PROJECT: 93310 IETENTION BA$XN DESIGN BASIN: g QESIGNER: G. MTLLER NUMBER aF DRYWELLS PROPOSED QATE: 15-Apr-94 Q Single (type A) 1 Double (type B) Tata1 Area (ealc.) 2.12 (see following sheet) Time of Canc. (calc.) 12.79 (see fallawing sheet) Camposit+e "C„ (calc.) 0.40 (see following shes~) Time of CQnc, (min) 12.79 Rrea (Acres) 2.12 C' Factvr° 0.40 Impervivus Area (sq. tt.) 16990 Volume Provided 208: 725 storm; 975 ❑utflow (cfs) 1 Asea * C" Factt]5C 0.86 #1 #2 #3 #4 #i #5 #7 Time Time Intensity Q dev. V in V out Stprage InC. Inc, (min. ) (sec. ) (in./hr. ) (cfs) (Gu. ft. ) (cu. ft. ) (c►a. ft. ) t #1*5Q ) [ A*C*#3 ) (Outf. *#2 ) { #5-#6} 12.79 767.26 1.98 1.69 1740 767.26 972 5 300 3.18 2.72 1094 390 794 10 600 2.24 1.92 1541 faQD 941 15 900 1.77 1.51 1758 900 858 20 1200 1.45 1.24 1812 1200 612 25 1500 1.21 1.04 1823 1500 323 30 1800 1.04 0.89 1834 1800 34 35 2100 0.91 0.78 1838 2100 -262 40 2400 0.82 0.70 1867 2400 -533 45 2700 0.74 0.63 1874 2700 -826 50 3000 0.68 0.58 1897 3000 -1103 55 3300 ❑.64 0.55 3950 3300 -1350 60 3600 0.61 0.52 2015 3500 -1585 65 3900 0.60 0.51 2136 3900 -1764 70 4200 ❑.58 ❑.50 2213 4200 -1987 75 4500 0.56 0.48 2281 4500 -2219 8Cl 4800 0.53 0.45 2295 4BDf3 -2505 85 5100 0.52 0.44 2385 5100 -2715 90 5400 0.50 0.43 2421 5400 -2979 95 5700 0.49 0.42 2499 5700 -3201 100 600[] 0.48 ❑ . 41 2571 6000 -3429 _ 09 iRAI1►iAG£ POND CALCULA'PIONS FCequired grassy swale pnnd storage vvlume ~ Impervinus Area x.5 in. /12 in. /ft. G 708 cu. ft. prvvided: 725 cu. ft. I]RYWELL REQL)IREMENTS - 10 YEAR DESIGN STDRM Maximum starage required by Bowstring= 972 cu. ft. prvvided: 975 cu. ft. l7epth of starage swale _ 0.67 ft Number and type of orywells Required = C] 5ingle 1 Dauble TIME OF CONCENTRATYC]N { mitnutes } Tc (vverland) Tc (gutter) Ct = 0.15 L2 v 460 tii - i L1(A) = 145 Z2 = 50 N(A) 0.4 B ~ ❑ ' S(A) - 0.005 n = 0.016 s = ❑.0[}8 Tc {A} ~ 8.40 d = 0.20 ,1(B) ^ 0 Tc (gu) = 4.38 N(B) = 0.4 Tc(A+B) - 8.40 5(B) = 0.15 Tc ( tvt . ) = 12 . 79 Tc (B) = p.❑ Intensxty 1.98 Areas ,iG" A*C A = 0.9696375 WP ~ 10.0277 A - 0.00 ❑.25 0 R = 0.0967 B 0.24 0.90 0.216 V = 1.75 C ❑.1Q 0.80 [].t]$ Tc(9u) = 4.38 p 1,39 0.15 0.2085 West3 = 1.70 E 0.39 0.90 0.351 0,00 0.00 Q Holding ~ 16.39 0.00 {].fl+D 0 Total A Cvmp "G" _ 2.12 0.40 Q=C*I*A= 1.59 Q[est.} = 1.70 A: ❑ sq ft undevelaped meadows/pastureland 8: 10,500 sq ft existing and prapased structures Assumnig 5 new hames at 1,750 sq ft each - 4,356 sq ft existing and praposed dsives arnd walks Assuming 20 wide drives and wal3cs for bhvmes D: 60,548 sq ft existing and praposed grassed lawn areas , = Assuming frant and rear grass yards mn 5 homes . E: 16,990 sq ft praposed roadway r~ t d! !OWSTRING METHDD (TEN YEAR STORM DESIGN) PROJECT: 93310 IETEHTI❑M BASIN DESIGN BASIN: G DESTGNER; G. MILLER NUMBER OF mRYWELLS PROPOSED pATE: 15-Agr-94 1 Single (type A) D Daubl,e (type B ) Total Area (calc.) 0.21 (see fvllawing sheet) 'Fime ❑f Cvnc. ( calc. ) 5.00 (see fol,~owing sheet ) Composite "G" {calc.} ❑.4❑ (see follvwing sheet) Time of Conc. (min) 5.00 Area (Aares) 0.21 - C' FaotDr 0.40 Impervious Area (sq. ft.) 3060 Vo],ume Provided 208: 135 starm: 202 Dutflvw { cfs } 0.3 I9►re?a * C'° Factar ❑ . D$ aaaam~aac~===~c==.-===-=-==--==~~n=~.~.a=.~«==_.^.=.=~c~=-„-=aacc~--.a~cccaca #1 'ltL #3 ft4 TPGJ 'th6 Time Time Intensity Q dev. V in V out 5torage Inc. InC, (min.) (sec.) (in./hr.) {cfs} (cu. gt.) (cu. ft.) (cu. ft.) (#1*60) {A*c*#3} (outf.*#z) {#5-#5} ccc~rc~caa.~accc=aaccccc=accc~ca===c====c======='c==cc===c~ca~.c~~cac~aaac~ 5.00 300.00 3.18 0.27 107 90.00 17 5 300 3.18 0.27 107 90 17 19 600 2.24 ❑.19 137 180 -48 15 900 1.77 0.15 149 270 -121 20 1200 1.45 0.12 159 360 -201 25 1500 1.21 0.10 163 450 -287 30 1800 1.04 0.09 155 540 -374 35 2100 [].91 ❑.08 168 630 -462 40 2400 0.82 0.07 172 720 -548 45 zaflo 0.74 0.06 174 si❑ -636 - 50 3000 0.68 0.06 177 900 - -723 55 33(]{] 0.64 0.05 183 990 -807 60 3600 0.61 0.05 190 io$o -890 65 3900 0.60 0.05 202 1170 -968 70 4200 0.58 0.05 210 1260 -1050 75 4500 0.56 0.05 216 1350 -1134 8o 4800 ❑.:53 O, (]4 218 1440 -1222 85 5100 0. 52 0.04 227 1530 -1303 90 5400 0.50 0.04 231 1620 -1389 95 _ 5700 0.49 0.04 239 1710 -1471 100 6000 0.48 0.04 246 1800 -1554 - - ~7- ~ IRAIF~AGE P❑N'D CALC[3LATIaNS Required grassX swale pond storage volume = Impervious Rrea x.5 in./ 12 irr./ft. = 128 cu. ft. prflvided: 135 cu. ft. DRYWELL FiEQi7IREMENT5 - 10 YEAR DESIGN ST4]RM Maximum starage required by Bowstrang= 17 cu. ft. prvvided: 202 cu. ft. oepth of starage swale = 0.75 ft Nunber and type vf Drywells Required = 1 5ingle 0 Double TIME Qg CvNCENTRATTQN ( minutes ) `d'C ([7Ver13nd ) TC ( gUttE~.'Y ) Ct = 0.15 L2 = 80 Z1 = 1 L1(A) = 35 ZZ = 50 N(A) - 0.4 H = 0 S(A) = 0.005 n = 0.416 s = 0.008 Tc {A} _ 3.58 d - 0.10 1(S) = 0 Tc (gu) = 1.21 N(B) - 0.4 Tc(A+B) = 3.58 5(8) _ 0.15 - Tc(tot.) = 5.00 Tc (H) = 0.0 Intensity 3.1$ Areas "C" A*C R = 0.244902 WP ~ 5.0396 A Q.dfJ 0.25 0 F# _ (].(]486 B 0.00 0.90 d V = 1,11 C 0.00 0.80 0 Tc(gu) = 1.21 D 0.14 ❑.15 0.021 Q(est) _ 0.27 E 0.07 ❑.9C3 ❑,C3fi3 - 0.00 0.00 0 Holding = 2.85 0.00 0.00 0 Tvta1 A GDmp "C" - 0.21 0.40 Q=C*I*A= 0.27 Q(est.} ~ 0.27 A: 0 s4 f t undeveloped meadows /pastuxeland B: 0 sg ft existirag and praposed structures Assuming 0 new homes at 1,750 sq ft each , a sq f~ existi.ng and proposed drives and walbts Assuming 20 wide drives and walks fvr 1 hame D: 6,098 sq ft existing and propased grassed lawn areas , ~ Assuming frvnt and rear grass yards an 1 hvrne - E: 3,060 sq ft propased raadway CURB DRQP AND YNLET CALC[TLATIONS ~ ~~~~~/~Fvr CT]1. 0=0.99 cfs GurU Dr[ag Law Poiret 2% Cross S14pe f rom Figure Z, page 18, capacity ft at low pai - 0.35 c£s 44-5 L(req.) = a.99 I 0.36 = t. Provide aurb drvp _ O" • V CD2. 4=1.35 cfs Curb Llrop Lvw Paint 2$ Cross Slape frvm Figure 1, page 18, c3pacaty,,ft ~j at low poin - .3fi ❑fs J ~L~~ F,(req. ) _ N. / d.3F = . ft. * Frvvide curb drap 4'-0" V~n ~ CD3. Q=0.99 cfs Gurb I]rop Lvw Pvint 2* Cross Slope from Figure 1, page 18, capacity/ t at low pain 0.36 cfs / L{req.} = .9 / 0.36 ~ .75 ft. * Pravitie curb drop , _fl" L0-~) - ~ K jy ~ ~ . ~ e JRffuARY 1951 z 0 IE~ HEIGH T ❑F flPENING (h ) IP! FEET o ~ . ' iu u w + ir b+ :r d m 0 s +`r L` ~ cn , z o I ~ U ir In u '4 t+' m m Cy - N . ~ p ~ ~ ' ~e P ~ . ~ ~ ` • a . , , ~ p Z I 0 Cj r ~D 'C a CAPACI7"Y RER rOOT flF LENGTH DF OPENI G {O/L~ IN CFS PER FOOT ITi 0 z G) f.7 ~ ~e' $ ~ I ! ~ ~ • ~ s F ~1,1 a~l r l i_~ iLi_~~ , I ~ I i I i_~ ~ I ~ I t~~ T 2 ^ \ . rn o \MING T ~ ~1 ~ 0 C'~i'i o ~ RArIa OF DEPrw oF wArEr~ ,aT oPEr~Ir~G rv tiElf,.HT ar v~ y •~IN FT/FT - ~ ~ . . pp . . • - o aa ti w ;.a + ea in -4 m iam r,, ro e+ a~ a~ 'v ~ ~ ~ - • • - . . . _ - .~..c_ . - _ - : .~i - ~ . - - - - - - - ~ ~ ' ALK I - AVENUE M ~ N e9•4$71" w ~ • is94e•►r w ►9' urItITY EASEME,vr- w b~ UTlLlTY EASEME, ' U. nIN6 sCreACx ss' • 1 ~ aurr.nrNG sErBAcx DkAlNAGE EASEMENT~ 1 25' 25' 1 LOT ? - Q 12.2s8 $0 FT 1g,a ~ 30* ~ l26.0p' , I I: . - N e9 •as •s0• w 150.94 ' p~°; 4LO ~ N 99'4350' W - • LOT 6 ~ • v 10,283 5O FT f LOT 5 12,832 S0 F7 s 3 ' ►PS.ao~ ~ , I . 10 N B9•4S W J ~ ~ ~ ~ I''' 151A0 ' ! rv s9•a.~,5a, w ~ ~ 4._.._ 10' [IrIL ! T Y EASE',MEN7' j . , o LOT 5 I~ I02055Q FT t ~J I LOT 4 I2,836 5Q FT t r7 ►26.D0' }°v N 89 •4 S '5O' W N 8914.530" W ~ LOT 4 - ~ D 10,205 $Q F7 L0 T 3 12,941 S4 FT s ~ 6"L OCfC ►Z6.0a 1 N 89'45'50" W ~ BL aCFC -2 ~ 10' UTILITY E'ASEMENT; 151.I1' ~ M 89'45':50" W LOT 3 ~ o roaaa 3O FT . " CD 126.00• `'i : l.vT 2 J 22,672 sa FT : ~ N 89'4550" W ' i ~cv ~ LOT 2 ~ ~ ~ h I + Z Q 10,203 S[7 FT .~0' ~ J OD ~ k !o' . . • 126. a a l ~ . ~ • M 89'45:3p" W k H9`4550" W . LOT I ~a~~ LOT I 13,013 so FT i5,3e5 so FT x 0 oR,a rNIa cVh ~ o~a rnr,a c~ £,dSEME'NT ~ F6' 2~' ~ASEltfEN7' Ir 9UfLDING 5E 7'B,4Clf B[IILDING SET6ACK rry ir V*~~ h o 3o'I ' ~30' • s• PurU,~E - io' urIL orr F,ase~u,nrr aC(?!1lS1710N ,4REA~~ r~ T 1~1' i!7"IL17Y E'ASEM~'NT ~ i.. ~ 95. TO' ' II5.57" - • • ~ N 89'4550" W N 89`4.4'5a" H+ _ FND I~P" PlPF p !0" R!W - - ~ED~ca ~ rro~v N 89'45'50" W ~ ' ~327',2B' - ~ Wf CaLLAR ~ ° 1 ! ~ ~ ~1~' RJW pEi~ICATlON 1 ° N B9•45'50" W + VALLEY ~ WAY . ~ . ~ I I I ~ ~ ua ~E, ►~t~ • ~ ~T~ }~~sCt~~ . . , ~ ~ IT, ftv41 ~ z 0 (acIG, Y ep"i"q) ■~'x1"o 4K,On'! ~afG ~ + ~ 1+4 ~ 1 'I I ~,~nrree... ~ , • ~a'~t$ o , go ~ i + + , . ~4466) ~ ; ow ~ ?Aa.~ ,-z-3 f . } ;i ~ Ix a ~ ~ ~ ~ ~ ~~z~'~" • z: ~I ~X3t~ ~ ~~~L ' ~z-.~ +'5'5. Ie.~, -7 ~ . :5W A L.rc- ; - ~ ~ d il 0o So) yF. ~ + 2-5C~.'~Cf-S76) y I; ~ 3 i y "kil. 2. ~~~4 ~ rRL7 ~ sl ~5, l- 7-~o r "I~ '~w~~ ~'~~~.~~r ~fiD'~,,~~ ~'"~~„~j ~1 , ~ II , i : Y, 74' t~~G) t(1660* Wa) i ~ ~ ~ ~ got )01,wotev-~~~'~ -tamL ig-ne i i' if , ; i , ~r~ew~,~~. . , ; ~~~►ru~ . = e~ ~ I ~~"~P1~.2.,'~~"~ ~b.SD~~~~I~S~~~f~'~~~.~~'~.3~~~a~' ra~~'~''.+~,~~I i~ ~F- ~ j ~~"C•~D J:~~'7~~ ~3~"~~ ~~o ~ ; i I ~ . i ~ ~ ~ ~ = ~,~~e~~~~~ ~ ~~.~.•w~ ~ ~ ~ mct43 , ~ . . I i I ~ ~ 1 ~ II i ~ ~ ~ .~ceear~d ~r k;'~ t~rner p ~urd6rvsrcPw,dhrrwf ~sccA~aJAs 79ca°~f'~'~ _ . 9 { ~ ~nrnd Soa.~ane Eaunfy TJl1 .41d1 CdPPEY Wifd ~~;aorr...rt ~i ~Y "1600//-- Cenfer :~criA ' • { ~ - ~ ~twM; _ 8 9* J~~ 33 ~E H, ~ r n ..~'t. _ _ - - - - f 630 09 ~ ~ _ _ - - - -'~5Ao9~- - ~ -~s0c19~ - ~ _ _ -~69vD9 T1 I Ito' I N zo /-q lT ql~~lr , S~R~[q~~.l~ p~ ~ ~ f~ ~ JI~ f 632 ZO ~ GS2 ZO ' 652 20 J i•- E-32 ZG ~ r - ---~83°4~'iI!°G'J 1 i .i135',t7'ao'x/~ L~ Y --•'r'' ~ N8r16' y ~ ~ Scalr !°~5~0' , se~-_ __.-h48eic:-_- f M-57 -43 ~ ' ' ' ~`r ~ d i I r ~ 4 . SFf {Z'~P~Sar Q ti~ ~ ~ ~ q ti ~,j ~ •°•'o:n: C~o "'706 y ~i n I "afurt ~TW.~nL N I" V O y1 "~I ' v I, I~ Y ' ~ a 'N v l* a I-j vr ~ z ' IC) 0 ~ , a i ~ , ' 4 ti 85 s'30':J 4 • ~I'~1 ~ , R I ' I ~h~ \ IY~ I N ~~I C) rJf'JrL ~ ' I i 94_35-•, ~ ~ ',i7 G~'i•~ S:~ . -Z~S•r5u• ~ ••G3~3J- , r n8aa~-----'- ~-----1~~- - - - - o • -l ~ f ,4LL~Y 6ff.4Y- 2 6 ~7r -47 `Y ~~Jwa ~ i P~or~-Nrv ~cscR~~no,r~ y %'lrJl .s,~t i~a/r~ rf Te: ~ c1 ~xeef~~ +'~rC //8 A'er/ .~/fc n<<;~~ 15e 5a/.70.i.9 Fr.r! ol~ 117 r. lYr,l i2f 3: f41sa rrref/ ~ ( eaniy qlYykl~oORrya✓ t ~„onr ~ ~n/,•~ Wur,6,1/,•, _ ~ ~r BILL SLEETH t , 5URVEYOR'5 CERTIFICa~E: OA5I5 Ut= BEARlAI6 ,-----•--PROPERTY SURVEY IN -7"hc of ~vo.rk,(fjwun;ed) ; Swi/a sEC 13, r25N, kaa E w_M, 'h's map carredly repraie'ds a svr,,Ey made by nie a5 FCf )u/lrva-i Pqocl ww h'tC -T - or u-d;r rn din [lion . n confprmQnce wrlh fht reqvo rymenfa i.. P LERS, li o~ ihe 5~~~e rzeco~~+,~ acr basrsrrF~ca~n9~'arr1i,5 G;,"°_ ~e E f~;~.ii j' 3 51 rvr,/ ~ r`zliGl'3N~Ik Rl7"tl:' Pii 9z5•1322 ~ SPDii,4,NE, 1%tfASFllrtGidMP 9`)s05 CherICS E 5,m00n ~v°p~~~~ - I - - - , QRA4YP1 OY T-I T IECXSA ND RR4HiNv hP f ~S i97Ca E+ I CI1[C6:[6 6Y ti. E Simpc- ~ 81L819Ie,7-4~ ~ 1e~ I p ~W, . - . 1-7 -1 - fi - , r ~ • . ~ . ` J ~ ~ ~ ~~S • ~ ' . • . , . . . . ~~~,l.~ 1~ t 106 f} & as ~ ,9'?D ~ ❑•es a.9o•32• ~ 51op c OL : C71 Z, ~c J~~f~~ ~ R•E0.DO' ~ areoL : Z. I~ Ar'R - • are. as ar+Py,` ~p~ L-3I.23' TR~'~ 9' f er~►laJS G~~'A° E~I9dU 5q.-~r'~?. . ~~i~ FAf 25' R/'W DEDICATIaN R/W DE CAT►ON , ~ 3!4 " PIPF ALK I . ~v -M-n> N 99'48'11" W ~ 10' UTIt1i'Y EASEMENT 112.15 ,fk + q~ ~ 1 ~ a Q~` 1~' uTlt►TY rEAS,~~fFHT 1 i _ "1 ~ evrLo iNC sFrea cK z Y ~ - , i - - - - - nre sErea cx ~ - ~nRa rrvA GE~Fa sEMENr r r. . . 25• P3• I L , LOT 6 ~ 14.414SQFTt . 6 ~ 30' I I 30. a 132.00' 144.54' - N 89'45'50" W N 89'4530' W ~ NU If' B~GJ=YARDS a 1J A L m ~ . 2'c,`rs sNR Uu scoPE Aw.0 ~ ` . F- A I~1 Thl Il R~•..•; ~ 10;6 0~ F~ 12,322 Sfl FT t p~ gpck e..trlL~.. m °o 1 • "i -rLIW~IR fl s 706 iri ~ . . mI io go TNES~ R~~ ci m ~ I 1 ~132.001 . I ~ . ~ A?"` - ~ N 89"45'60" W ►4s.oo• N 89*45rlOp W . • ~ ro'UrrLrTr EASEMENT _LDT 5 10.691 sa FT LOT 4 = 12.326 SQ FT t °q vi FIIV I120 RFA11f I -4n ~ I 132.00` A:~ _ N 89'45'50" W 145.03' , n : 4630" W . 0T' 4 ~ i a . s L ~ ~ o 10,691 SQ FT # LOT 3 12,331 S @ F 7 s . . . . . . . . . , ~ I~ ~ a` . ~ , 8LOCK • ~ l32.O0' ~ ►v 8s•4a'5ay w BL4 CK '2 i . O' i1TILITY EASEMENT 145.11 N 69•45'5o' W ~ 00 F+ L a T 3 t o m (~j ~ Q I0,691 Sq FT t ~ Q ~ .8 70 00 . ~ ~ t ~ . 3 T.g(, A Es LDT 2 ~ V,5 ntreax I3~ ~r7 132.00' . ~ ~ E ,m 21,772 5O FT ! o x N 89'45'60" W ~ C~ p 1 Dzt h ~ ~ • . r ~ I ~ ❑ ! ~ ~ LaT 2 zt ~ ~ ~ ~ . 50,691 $Q FT . ~ o ~ a ` . . ~ ~ .3O' ~ , --i • _ . FMD 1/P0 Plfi'E t~~ AS4VE 6RGi ~ 132.00' . , ~ - IY 69'45 50" W 146.8~ ~ k 89'46'500 W ~ i 1,.OT I LOT I ~ I3,642 sO FT 4,767 5a FT a ~ p DRAlNAG ❑RArwAGE ~ = Q EAS6,MEN .1 y EA SEMENT ► 9C1 Al1Y~ SETB1ICK A 51 iUlLDlNG SEtBAGII ~ -''~►-y ;t, a • U ` • ~ ~D Fl1TURE - - - - ~ - - - 3' FIJT~9RE r 10' [ATItlTY ~ASEMENT 10 fITILITY EASEMENT ACOSJISJTliON ARE~4 !nl.TO". ~ . ~ ~ . . - 115.',S7' - - • i1CG~!lf51T1aN AREr N 99'~~'~'D" W FAfQ 3/~" Pp FNA 112" PIP ^ ~N 8g' 516d" W' ,32728'~ ~ W/ CULLA ' ~ !D' R/W DEDICA TIOAI w ID' W E7EDICATI(~N - ~ ~ras•4s5orw 14LLEY ~ ~ WAY . ~ "8s•4s30o w ~ .a+•90'34 FP" l d•99'~3'33" R•30.O0' `R,30.00' 0%Ja L-47.42' L•46.8t' ~ F-30.30' T.PS. 70, ~ s . s~ ~ ~ LEGE~D ; N ~ ~ Pno MouNr ~vs. ~PLar eoROE,~ I30SECI 3 P~IASE 5ECTOR V ~ ~ pvs~cI 1 PHo4SE 5£CTOR ' ~ p~LKI ' AVENUE r ~ ~ I Has ~ o ~ ~ ~ • vEFn°s PowER poLE L o NE4f POWER FOI.E SPUc . `c~ r ~~t ~r' A FU5E0 Cilf OI~T j rJL 75Ky'~ ~ , 1 1 6 -~6116 l!G STRF,ET LfGHi' ~ ~ DH STREEf LIGFIT ~ 137KV.4 ~ 5 Ao i ~~r VE os st O IJCHNiNG ARRESTOR t W ~ p I ~ I FAI1L7 fN01CATOR 6 L LLJ l]C CA8l.E (PREhIARY) A8 p , 25KVA ~ I Lai • U') UG SERIACE (4/0 VE 6S ~ ~ i < 1 UG S£COIVOARY (12/2) ~ h i W 4 xva - ~ ~ 4" CONDUIT , 11 ~ 425KVA ~ 3 L CONOUIT , ~ ~ ~ vE fl 4 ~ WA]FR UAI,VE ; C) _ ' ~ PuMPER 4 Fl~~ HYDRANT 25K/I EYJSTING HOUSE ~ IT}iRUST BLOCK - VE 031 Ta STAY FLIISHING PDIN7 ; ~ e i )d ----a ~ 1° PREI'AP (CUR@ 5TOP) t o0w i5KVp 112 n AIR d~ VAC R VA 36-5 ~ ~E1~F l.lfE 1 ~ A P9 ~ CLASS 150 C900 PVC 25KlIA I s ~ 25KUR 2 v~ a~ ~ 2 vE 01 -7 r ~ 208 SWALES 30-6 4 ~ ~ .•k:.':. ~ 1986'. !p ~ '4.::'. ~ S+`' ~ ~ $ ~ R-2 B 37KVA 0 ~ ~ 5 KVA ~ ~5lNA ~ 9- 663 \33fi~.'~AGSR KC~d 45-4 \ T. ssr ~ ' ~ ~ a a1srir& 10 •sn f R-z ~ 4 1NA10' FP/W DEDICATION ~ VAL, ~.~Y vnUXr vMr E"ATM 1wr, I" - iad r~a rn m. Ao x - ar6-2-%--iow m~ X*-u VERA WATER b POVIER - P E-16. P-14 ~ 179414 r ~ • . . _ J'+~ I~~e~~r~~~ ~A5r~1 G f~sj~ ,C~ I►~peQvro~s arerk G' 116 J Sb ' ZS?a 5c p z160 5q ff 0. Qo❑ t ~seg ~ra4~ aa9~ 3E~as~• s~ e. go %A L? ~ R.Ro av • R.,20. v o • A= a. 3 Ae,~~s t p zi A ~cs ~ c-3►.2.~• ~.=.~r.sa• ~ , r=►s.s1' r=20,19• 2u' R/W REAIGATl~N R/W aEDICATION FND 314" PlPE ~ . ~ ~ ~ ~1! ~■Ir~ ► M8. ~ i~~ ~ O--zp3y ►4V EN U E r nr ss•gew" w nr sswe•►r w~ ►a'urttIrr EasFMrENr 130.69• , VQ~ ~ r ~ 1 - - ► r" sE►w ~ r. igUILDIHG SETBACJ[ J3' 8UlLe1NG SET6A e4up [1RAlNAGE I 25' 2.51 ~ ,~pl y . 1 fl • ~ 12,269 Sv F7 I5,O4~ QF67 q ~ 0. I°30 39~,.~n .~o• ~ ~ F.Y~&.00' d ~ I~ N 89'433Q" W 1~0.94' ~ 1011 ~ N 69'43'3c~" W ~ ~ I . . . . ~ vo- ~ ~ ~ ~ . . LOT 6 o ~ 10,205 sa Ft : -Lq LOT 5 y ~ ~ • • • ~ • ❑ a L a ~ I2,B32 SQ FT t ~ d i ~ pp • ~ q1 0 ' ~ ~ ~ ~ I ~ _ _ . • ~ I26.00' N as•43 '5o° w ~ i r.oo• N 9•4:f'~a" 10' il T d T Y EASEM~ i ~ ~~'j , o o3t)~ N I . XUD 5o Fr7: LOT 4 • 12,e36 sv FT 2 ~ go Fn+D ►rP- REeaR w. ~ ~ 126.00• R ~ - ~ N 89'45 3D" 1V N .~~r.n~~ ! . ~ N B9'4v~ W ~ ~ C3 , LOT 4 p ~ O t7 LOT 10,206 9q FT t 12,8 41 9 0 FT : ~ . • ' °q ~ I ~ y U ~ ~ . ~ ~ 1 9 f gLOCK I Zoz r 0 :4 oo 1~s.~'~ ~ r ~ ° ~ I • ~ , ~ rv •45.50' w ul_ B GiC _2 ~ ~ASrr~ $ 1 !lTILITY EASEM,ENT 131.11" .1 ~ N 09'4:5°30" W ~ Lr ' 5Z~5 1 LOT 3 ~~1 ?d ~ ~ io,a~ie sa Fr : 2.1 3 .qkos ± lrhp~RV~.~sls A~L~1~ s 1~ ~ I ~ 5 ~ . " ~ ~ $p~~,~ A t 126.00• LOT z 22,672 SQ FT ► ~ ~ N 89'45'50" H+ ~ . ~ a ~ ~ ' ~'Go~ ~ ~oZ,a ~ ' ~ ~ $ I ~ ~ ° t - • ~la~~ d ~4~~fl ~ ❑ ~ ,'2 • ~ °i ~ ~ I0.205 SQ FT 9►p~'~ C 8~ ~k ~.f, . ~ ~ ~ I ~ ~ ~ ~'a - ~ . . . . 3o' " ,~p~U+•~~ ' " krn, FNn 112~~P►PE to, I.P' ABOVE GRf1UND l3 Sc0 126.0e, ~ . ~ (►w 69•4530- w , - - - - - ~ r5r.2v1 - - - ~ N 89'45'50" W LOT I LOT 1 13.013 90 ~r 1e.385 SA FT : N ~ ~"40 o r DRA f NA GE DFtA lIVA GE N r~, ~ EASEMiEIVT 25' 25' EASEMEN7' n ~ BL►IvG SE TBA ClC ~ htJlLQ lNG SETBA Clt r ~ [O ~s ir' z02g ' U56 0~,,6 ~ ►A ,d.1'~ ~S 3' f'~" r~lfi~ ACC3VfS1TION AREA IQ' UT FL I FY EASEM%. 10' 1!T I L l i'Y EA ENT _ ~ ACOi11SIT10N AREA 93. 7o" ~ _'t"- ~ ~ • • - 115. 5T 89''4 ao" w N 89•45 '50" w ..F - Na 314" P~PE. eErvr FN[] 112" PIPE N 89'45(]" W° " 927PB° ~ ~ ~°y Wf CBLiAR - ~ 10° R/W pF~1GaT10N R~ 10' RfikV DEDPC~4TlL?N *-A69` NN gg •45'5nry A L L E Y ~ R'~► ~~A,n ~ w ~ N N 89'43'3r]" W _ ~ rr Q-90*34 iQ7" R-30.00• R-30.00• La4 7.42' La46.82' T-30.30° T+29. 70` ~ EOEND . L f ~ . • • . SP►J C. {~951~ ~ r►~peQ~~~~s area jmpeav~OVs rsn' ~s~o s~ Z~~ 5 f~' ~ d:89;~T'S4" 4=9D'38'06" ~ s d$o ,~a ~ S= D.go ~v R.RO.❑CJ' RARD.DO' A x 0• 3 ~ s Q 2-1 A6EG S'!~ ~.-31.23' L•31.60' ~ r=rs.er• rr~a.~s• FND 314,~ P'PE 25'Rrw aEe IcArrvnr ~R/w oEa reA~rr `onr 41" 'r' ww ',s. &Y& l-~3 A V E N U' 'N 69'48•11" w~ nr 69•4871' w4% lO c 3a.sa, ,a, urrLlrr E►asEMErvr ~ • 1 - ~ ~ _ _ F' ~ 1 T R 5EM ff1 . r BlIILDIHG 5ETBACK BUILIDIAfG SEtrBA ~ DRA INA GE 1 25' 25'$ A . ow - LOT 6 ' a 12,26e sv Fr : ! ry ' 15,010 SQ FT ~ i ~ a a C =~za • 1 3 ~0° ,~o .~v• j ~ ~ 128.00' I50.94' ~ N 89'43 5c7" W f N 89'4:S'30" W ~4 1 . • • • ; . ~ ~ ~ ~ ~ ~ . . . . LOT 6 ~ 14,208 sQ FT : +A I 0 1.~ L DT5 ~ • • o a v ~ 12.e32 so Ft : ~ a . . ~ . ~ ~z 1Li ~ ~ 1 126.00' • ~ tr~ N 89•4530 " W f .00, . nr 9•45gn- 1D' !AT 1 T Y FASEMEA'T % ; a~ L❑ s❑ Fr twf o I LOT 4 Wm 3 0~ ~ 12,B36 SQ FT/t d k FND IIF" REBAR ~ 126.00' ~ H 9 Z ~ N B8'4~'5D" W ~ 1 y~ ~W O a~~ ' N 89'4S 3 " W LOT 4 LOT + I0,24$ SO FT ! - a 12,841 54 Frt t , • ' . . ~ ~ I ~ l.A ~ 4 ~ ~ a . . . . BL OCK 1 ~ N '43 3~3' w I ~ ~g L~~ a B CK -2 I 814511~ Fj ti ~ i I UT[LITY EASE'MENT-• '~-ti ,o «f.ll' a ;h ~ N 89`45'50" W , v 5 = a 8g~~ ~ a-337o . LOT 3 I ro,268 sQ F7 1z ;y~--Rb-s ± to~~, . Z8 im peRv,o vs lREA _ ~ ° ' F4 R~r,•~ A J ~ #.~QT 2 t~ 1~~~ ~ ~ I26.00' 22,572 5a FT z ~ Z a ~ N 89*43 ~c~" W s . a a ~ O . d 3(TIo w a j ~ o ~ ~ ~ ~ • ~ i . ' 10,205 sa FT : tA~ q o ~ o I 3p• ~ m . . . . . la, ; FND 1/$" PRPE I.P' ABOVF 6R[3UND 1p• ~ 13, Sar~ ~ ~ ~~1 e26.00• Y _ - - . ~ - N 89'96":50"- ~Y - , - - ~ - L 131.20° - - - - - - - - - A1 89'45,qU" W ~ Li @> LOT I LOT I 13,013 90 FT ! 18.366 90 FT ~ W g~ v►tA rnrA GE nR,a rn►a cE a EASEEME'NT 25~,- pg• E'ASEMENT bU4WIVd SETBACK BWLAfNG SETBACI[ Zo2t ~ n b 3'FIJ7'iIRE P0'urrarty EaSEME fd' UTILIrY EA ~ENT S'F 'f!iR4 ~ r AGAf11SIT1OW AREA 'ACQf1151'f![~N AI?EA " ~.TO•. 11~.5T' - 45'50" W N B9'4'~ 30" IY ~ FNm 314" PdPE. BEN7' FAfp 112" PIPE N 89 "N430" W ~p 3k'7.P8' ~ p ❑ W/ COCLAR Ip' RIW DEDICA TIaN - ~ N ID' RfW DED CAT10N ~ - N N 89'45'50" w ~ L L ~ wn ~ m ~ ~ N 89'45'30" W a-90'34 '2T" ~ L7R89 *2533" ~ R=30.00' Rr30, DD' t+4 T. 42 ° L =46.92' TF30.3e ` T=29. TQ' f Lllw AIEI■D 1 i • r ? a'~ ' • . • • • ~ ~s + ~os f~ ~ ~ ~ ~,a~ ► fi r ~ s.~47D a.as A.90~Q~rs* 5lap cc~.$ ~3 f ~~U OQ~ RR2p.QQ~ r (~fG 4l : 1~ IjGRf ~ ~p0 RL+31.23' L-31.6y~~ ~ :'F'~: - F1Yp 314" PIPE23' R"JW aEDlCA7'!0N T•13.8!' ATI~N ~ -DE A1 B9' 'Id" 326 6, r ' C4 ~ I r- ~ A VE~iU E A L K I . ~ ~ Af B9'48Y1" W! N 89'4B'!1" W ID' 11TlLITY EASEM,ENT ~t~•► ~I i1T1L I TY E►IS~IV~HT I ~ ~ ►'z ~ ~ ~ BL11L131NG 5~'TBA ►s. ~g , l~UILDIIV AC1C ~ - Nl. DRAINAGE EASEMEIVT ~ ~ ~ • 23' 23' ~ 0 ~f5 7 LDT ~ ~;8'~7 547 ~FT t IP 14,4 kfl SCh FT Aoib ~ ►3a.oa• ►~4.9~• ~ • ' +v 89•¢550N w ~ . NOTf ~ 13NCr-YARDr ar,l Af-i. ~ 10• H 89'45'50" W f . C7 r~ r ~ _ ~,[]~a~ r7 t.JR C.L S La P AWA~ . L O! V l j . f I • ~ : . 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DINIi SET6AGIC 4* 5. 25' BUILDlNG SEMACK ~ ~-a- 0 L ~ - S• Fe~~-vRE . ~ r 14A • ~ure~F 10' fJTILITY EASEM-ENT 1~ UTILIT~' EASEAIEAIT C GtlISITI~W AREA • ACQilIS1TlON AREA ►or.rn•. . ~ . . - 115.57• , . 8~•~s ~v° w ~ FND 112nr 89•45'50• w Fn~v 314" PrP ~ P1pE ~ N 89-'f~.ya` W 327.28' ~ Wf COLLRR E~r- o JC3' ~ DEL] GATIl31V ID' R/W L`1EDICATION a - N 89•45'50" w ~ N s9•453v- w ~ VALLE1~ WAY • ~ _ _ ~J a+90'34 P7" tj-89 23 33" R•3d.(10' ~ R■30.00' ~ L•4 7.42' t+46.92' Ff30.30' T-28. T 0' i ,~r rwafr~ -