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<br /> <br />April 5, 2005 <br /> <br />Mr. Ben Urbonas, P .E. <br />Urban Drainage & Flood Control District <br />2480 West 26th Avenue, Suite 156-B <br />Denver, Colorado 80211 <br /> <br /> <br />RE: Flood Hazard Area Delineation - Upper Goldsmith Gulch and the West Tributary <br /> <br />Dear Mr. Urbonas: <br /> <br />Enclosed is the Flood Hazard Area Delineation (FHAD) Report for Upper Goldsmith Gulch and the West <br />Tributary. This report documents the FHAD study process from initiation through completion of the final <br />floodplain and floodway delineations. A summary of the project history, description of the study area, field <br />inventory of hydraulic structures, summary of hydrologic and hydraulic analysis, HEC-RAS water surface <br />profile computer modeling results for the 10-, 50-, 100-, and 500-year storm events, and determination of the <br />0.5 foot and 1.0 foot floodways are provided in this report. <br /> <br />The floodplain and floodway information provided herein should assist the Urban Drainage and Flood Control <br />District and other project sponsors in updating the FEMA floodplain boundaries for Goldsmith Gulch and the <br />West Tributary to reflect the current watershed conditions and in administration of new and existing <br />developments in the areas prone to flooding. <br /> <br />We appreciate the opportunity to prepare this analysis and look forward to working with you on future projects. <br /> <br /> <br />Respectfully Submitted, <br />Moser & Associates, Inc. <br /> <br /> <br />Ohn~ t llimOmm~P.E. ~!~~ <br /> <br /> <br />Project Engineer Project Manager Principal-In-Charge <br /> <br />.,\\\\\\11 !If II ""'1/: <br />~\\' 0 ~E Il/, <br />~". l'\.~ n {Jbll.~ <br />~~~.... 0......,...... '<J~ 1<. 'l" <br />~ ..'\:..9 a 11;''' ,...."9, <br />~" ....L p' 'Vf,O"......,;...~ <br />.:::::~ or~ ~(",.":;"'''' <br />~ '..t~. 'v. ~....f\~ <br />~~CJ ~. o,~_ <br />::: ,~.~ ; ~ <br />~~: 27434 :~..g <br />:;;'~... /1 ~ ~:ii;$ <br />~ ~ 9$7 -,- ~'(JP 00 ~ ~~ <br />% ~.... .....,~ ~~ <br />~ {.rJ}~O.Ooe...(.~~ off' <br />~J/III. IV A \.. ~ 'I\\\~" <br />1111//1/111111\\\\\\\'\ <br /> <br /> <br /> <br />