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Home My WebLink AboutMap APPLICANT 12/21/2006 <> STORMWATER MANAGEMENT PLAN FOR DANIP/L P1SCHP/R SE 1/4, SEC. 31, T.IlS., R.2JY., If.M. SPRINGFIELD, LANE COUN11Y: OREGON .SUR~iE'YE1J:JUNE .2,2006 J ~ r EX S1m /010 FL IN (S)=468.39' RIM=47Z70' \ 1", I - 0'" l.. - .J .A l.... . - ",' - I ~~ <\1( <\\> DOUG~LAS GAR ENS ~ BOOj[( 4, PA E 73 u ~ J~ - .oj A 'o~ .'4 :. ~ ~ /~ ~. ~\ ~:~~qj <\/ \. 2 YR.STORMCALGuLt\TIOli 2 YR. ~IUt(r.4 EVENT RAlNFAllINTENSflY = 1.40 IN/HR wSTING CONDITIONS 20' 0 20' ~ . .25 YR.STORM CALClJL!TIO~ 25 YR. ~luRM EVENT RAINFAlL INTENSI1Y = 2.4-5 IN/HR. EXISTING CONDITIONS 40' I ~ :r.' ~ ~ ,- !".d . ~ !~ P::,~ :fr ~;' R/W:~ I ., ~'f;'38T - - - 107.~d 4168 - - I X ;:. ~ "~~.~ POR. LOT~.8~_/t~?CK_~' lt' ~ -Of! c b ' 4 '...., ~ 4~.'. ~ .\&-.. .~ ~ "'4: "': C"V1t"1'7AU" .:-~.f fJlt::>tlNG · I ____ C 1-f . _ A . c.:A1.J1 "'U .~. N. 'HEn TO BE. t ~ '. ~ ~ V C ----Of! ~ '. .:'''' .~.- '-. - :~: 0 SINGLE-:>/uRY g.~.REMOVED · ;:~4 -. ~ 36' PAVE --'~ .~_..--..~?H'~~~.: ~:~ ~;1 ffi+' ~. 13" OEC/DIJ(.lUS '~ ;:r: < .,-. -' % '. h~~E~ / ~ S. iJ~39~ MAPlE ~ \ PARCEL 2 : " ~ t> ~ d y~/ ~ ~ \ ARE:A: 45OSS:F. l I~.'I ~ , /\t~ l<J ~J6.MAPLE I > ~..".o"~4-~"'_ ~ ._/~ ~,:~,' 5' PARCEL 1 ~11 ir : ~ ~ _ _ ARE:A: 5906 S.F. ~ "t' I . ~ I I-$J.. ~t7ll0 :ff~- J I ~ ,~',,:, I..' ~ /' ~.' '~I ;t4" ww [,: . ,. _ ~ ~~.../ : fM;fflAl. POINT EX SMH /001 .... I~ ,:.*:.;.) ~~\5~:-_____'~fr ___-1 ~ FL Ollf(E)=467.21~ f..?,~fllH . /0 15 . ~ 1- ~6\J ~ . oh t~ ~ . oh :U) R1M=479.37' F't a..IJT. (N.9.' ~ 4,'., OH E OH E OR E - OH E .- 'E OH E- OH E H Eirt ,OH E OH E OH E RI/,f=478.97' . .. j 21.29' 86.64' ~ t .a _, ,;II . .. 4' . A" ."'":N1Jg-Jg'J7'W.d: , . :", 'w'- "'07.9JN: '! 0 :4A_ . ~_ . t. \' .~_'" - ,i,. ' -w . - :. '. - "" ..-. .-.' ",-'. ':A ..,,0. ~ -4 ; ",. _ '.' .' ",' . A '. 4' oA . . .4. . . v. ,I '. .J r. ' .' '. ~ . It' /.' 4"'.: 4~,'4 -;'" '.#11" ".: . .' ... . .... . i . .... 8 8" ww-f. ,8" ww .8" ww x ~ ~ \C ~ C\l ~ I ~ ~ Cj ~ 0 ~ ~ ~ ~ ~ SOfIE: 1"=20' " 4 l--- ~-$J ~ 0) I. ~ 4. . .'" ~~4 . (:' : . '" '~ . THIS ARfADRAfNS INfOEXbll1'lG CURB AND GU1ttK VIA Wttt' HOLES WITHIN SA ~I nfSTRuJ. :sITE .AREA; -0.24AC EXtSTlNG IMPERVIOUS AREA = 0.051 ,At THIS AREA DRAINS INfO EXISfING CURB AND Glll1 tJ( VfAVtI:l:.t"HOLESWITH1N s.. ~l nf 'Sn<t.t:J. SITE AREA -O~2.4 AC EXISTING ..IMPERVIOUS AREA = 0.051 AC \. <o~ ' 1 <\\> ~ ~ a ~ ~ ~. ~ ~ Cj ~ ~ ~ ~ ~ ~ UNIMPROVEOAREANAlURAllY ,SHttIFlOWS INTO s. ~lltl ~lKt.t.1 AND OREGON AVE. UNlMPROVEDARfA NAlURAU-Y SHttl flOWS INTO'S. :JIIH STRuJ AND OREGON AVE. C. ~.O.41(SITE AVERAGE) . I = 1.40 INfHR - Q = CIA = 0.47(1.40)0.24 =0.16. CfS DKY~LOPED'CONDmONS C = '0.41 (SITE AVERAGE) I =.2.45 IM/HR Q = CIA = 0.47(2.45}o..24 = 0.28 CfS. DlSV.KLOPEDCONDITIONS C = .0.55 (PARCEL AVERAGE) I . -=2451N!HR Q = ,CIA ={).55(2~45)o.14 =0.19 CfS PARt,~L 2- - o~ tOAC o en f'. OJ I C\l o ~ -OH E OH E- PAR\;~l - .n.14 AC C = 0.55 (PARCEl AVERAGE} t == 1 ~401N/HR Q =C1A =0.55(1.40)0.14 =0.11 .CFS PAR\,~.L 2 - 0.10 AC .PAR\;fJ., 1 - 0.14 AC V it Al18~S~ II ~~ r--\ Q. .~ ~t:J ~ ~. G. ;~-:.". ; . . /" . P . I -18}} ST/ll f8}} STM 18" STM--\ (@ -t- - \. Q = CIA = 0.63(1.40)0.10 = 0.09 CFS EX DMH If01"\. ROOF DRAIN flOW . . .. ... '.. .Q . .... .' -'. . ~. . ... . FL 0lJT (W)=;475.28' ^ = 0.051 N; . ~ ::~ ".~.', 4. '. ~ 'l. :....;.. :.;.....: '.~ :., ..... ....:...::. '..!'. .~. .... ~'. .~:.:.:.:~. .:.~ R1U=419.40 h== ~~IN/HR 181) ST~ t~Q::: OREGON -'1.~ 18" STM ~ ' 181} STAf ~-t.- . ~ C = 0.63 (PARCEl AVERAGE) .1 = 1..40 :fN/HR C = 0.63 (PARCEl AVERAGE) I = 2.45 JN/HR Q = CIA = 0.63(2.45)0.10 == 0.15 CFS ~ ,..... ~ .l() .........., 1'- 1'- ~ l'- OJ -t.- I- IENUE ROOF DRAIN' ROW '-t- BOUNDARY UNE ADJACENT LOT UNE CENlttfLfNE LOT UNE EXISTlNG " CONTOUR UNE EXISTING CONTOUR INDEX x .x -(] 0 c ~ 8" WTR (E) OH E [e1 p. 8" WW 18" STM SIll · EXlSllNG 5' CHAIN UNK FENCE EXlSf/NG 6' WOOD FENCE C + o 4- PVC n = O~Oll CAPACfIY AT 0..50% =0.1-6CFS VElOOlY = 1.83. fPS 4- PVC n = (t.Oll CAPACJ1Y AT 0.50% =0.16 CFS vaOCflY = 1.83 fPS cG o o ...J JJ ..... .I.t o Z ~i-4 . . /J-/;2/ /;wtJ6 Ie Received.) .........1.. ..-.....-....- Planner: AL . .... 8" WTR 8" WTR 8" WTR .d'. .- . . '. :..,. ~: -'. . '0 ",' A =0.051 AC I = 245 IN/HR C=O.90 -" . Q = O.9O{1.40)0.051 =0.06 CFS Q = O~90(2.45)0.051 =OJ 1 CFS LEGEND EXIS1lNG NC/DU01JS rt!tt 1Js -~ ~ . EXIST/NG TRAFFIC CONTROL SIGN EXISTING POWER POLE W/ST lIGHf EXISTING WATER VALVE EXISllNC fiRE HYDRANT (/) SHEET 3 f!F 3 0 ,OLSON & MORRIS 380 5 ~OOfp- OOO(PCf let- P1~ .".,-- ~ ........so,. _ ~ ~Oo~ EXISTING WAItt! MJ:.lt<< '&, LINE EX/STING ElECTRIC MtltR d' OVERHEAD ELECTRIC &- CABLE TV EXlSllNGTELEPHONEBOX &-UNlJERGROUND liNE ~ fX/SllNG W~lt"AftH LAIt.f<Al., UNE &'MANHOLE @ EX/SONG STORM bRAIN LINE tt .MANHOJI PROPOSED 4- ROOF DRAIN TREE TO BE REMOVED , EXISTING BUILDING I. _.~.:1.:. ::. . I EXISTING. CONCRtlt t\; "UNE NOT TO SCALE ASSESSOR~ 1IAP 17-02-31-44 TAX LOr 7800 PROPOSED STRt.t.1 TREE.