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<br />OUTFALL SYSTJo:1\I PLANNING
<br />
<br />AND FLOOD HAZARD AREA
<br />
<br />DELINEATION FOR
<br />
<br />PLUM CREEK AND TRIBUTARIES
<br />
<br />HYDROLOGY RF,PORT
<br />
<br />rrcp:ll"CdFor:
<br />
<br />URBAN ORAI:'IJMa; c," FLOUI.J CONTROL IIISTRICT
<br />
<br />l'r~p3r~d lly:
<br />
<br />WRC f:I\'GINHRINr..INC,
<br />950 SOVTlI CHERRY SHl.n;T. sunI: 4114
<br />llf:NVER. COLOll.AOO 80246
<br />J03nS7-8SIJ(phonc)
<br />.'Il.\n511-J2IJlol(fax)
<br />
<br />M:oylUIJIJ
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<br />~ay25.2000
<br />
<br />:>1r,BenUrbonas.P,E,
<br />.\1r. John Doerfcr
<br />Urban Drainage & Flood Control Di'triCI
<br />2480 West 26th Ayenuc. 5uilO 156-B
<br />Deny"r. Colorado 80211
<br />
<br />WRCFile; 21)48/12
<br />
<br />RE: Outfall Systems Planning ~nd Flood Halaro Dolinoation
<br />for Plum Crock Walorshed Wicttin Disnict Hydrology Report
<br />
<br />Gentlemen:
<br />
<br />Enclosed herein i, the Hydrology Report for Outf~Jl Systonl' Planning ~nd Flood Hazard Delineation for
<br />Plum Creek Watershed Within Dimict. Thi, report presems llle assumplions. analy,is. and re5ults of the Color~do
<br />L.rban Hydrograph Procoduro (CL.HP) and tho Stormwater Man~gomenl Modd (SWMM) computer modeling of the
<br />PlumCrcekwalerstu:d.
<br />
<br />There are few hX:lmms in the ,mdy area where flow rate, h,ve been preyiou~ly calculated. Prevll'us
<br />est:mat., of W.,t Plum Creek /low, performed b:, il!e !'" .deral bmergency !>lanagemem Agency (:-'!'MA) are "III,l"
<br />[Q Ihe re~\llls or thi~ stud;', ""'c believe me curren! <rody provides an accumlO. up-lo.date. and reali,ti" anal)"., vi
<br />the n.moff potential within the PlulII Creck watershed for botll c~l..tmg development condition., ~s well .. furure
<br />developmemcllndilions,
<br />
<br />We appr""iOl~ ~~ oppQrronity to prep~re '~I' '~::fm and look forward [0 complellng the Outf~1I Systems
<br />i';J~"::~:; '~<J ::""" Hazard uel'ne;::o.. .>rudle'
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<br />Rc~pectfully Submitte<i,
<br />
<br />WRC ENGll'EERI:-:G. INC.
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