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<br />. <br />. <br />.. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br /> <br />EICENTENNIAL <br />_ ENGINEERING <br />INC <br /> <br />November 30, 1990 <br />Lower Dad Clark Gulch & DFA 0068 <br />CEI - 906.00 <br />Page 2 <br /> <br />(303) 420-0221 FAX 1-303-420.2308 <br />OFFICE LOCATION"15DDO WEST 64TH AVENUE ARVAOA, COLORADO <br />MAILING ADDRESS: P. D. DRAWER 1307 ARVADA, COLORADO 80001 <br /> <br />November 30, 1990 <br /> <br />We would like to express our appreciatiDn to Ben Urbonas, Barb Benik, and Bill DeGroot <br />of the District Staff and Bob Deeds of the City of Littleton for their assistance and <br />attention during the preparation of this report. <br /> <br />Very truly yours, <br /> <br />CENTENNIAL ENGINEERING, INC. <br /> <br />Mr. L. Scott Tucker, P.E., Executive Director <br />Urban Drainage & Flood Control District <br />2480 West 26th Avenue, Suite 156B <br />Denver, CO 80211 <br /> <br />~\\\\\I\lIIIIIf1111!111 <br />~\~ nO REGI.~/II,.~ <br />#- a...~\)..".. (f.),.~ <br />;:> "'" ..,>tRY .. , '^'*- <br />$i~...~'4' 1J!4..~~~ <br />~C::S..~~ ~..~~ <br />fJ~:;;; 18757 ~:'='% <br />= .< -c_ = <br />=:..,,~t:; Za::== <br />~~. \ I "/0 .....;0 <br />%~. -z, I '1-li) ..".:....~~ <br />~ ~... ..- ~~ <br />~ crcf.z........c....~ ~ <br />~II/, DNA\. ~ ~#' <br />1I11!1II"'111I\\\\\\\\~ <br /> <br /> <br />D17~;&;1- (J, tJ~ <br /> <br />Douglas C. Weber, P.E. <br />Chief Civil Engineer <br /> <br />Re: Lower Dad Clark Gulch & <br />DFA 0068 <br />Flood Hazard Area <br />Delineation Report <br />CEI - 906.00 <br /> <br />David L. Mallory, P.E. <br />Project Manager <br /> <br />Dear Mr. Tucker: <br /> <br />The Flood Hazard Area Delineation for Lower Dad Clark Gulch and DFA 0068 has been <br />completed in accordance with Agreement No. 89-02.06, as amended. <br /> <br />DCW/ld <br />d:\Itr\90600.2 <br /> <br />This report presents the results of the floodplain analysis for three separate <br />drainageways: Rangeview Gulch, Jackass Gulch, and Lower Dad Clark Gulch. Included <br />in the report is the hydrologic data, the floodplain and floodway data, and the half size <br />reductions of the 22" x 34" plan and profile flood hazard area delineatiDn drawings. <br /> <br />Enclosed are 60 copies of the above mentioned report. Transmitted under separate <br />cover are the following items: <br /> <br />1. One set of complete 22" x 34" plan and profile FHAD mylars. <br />2. One set of hydraulic calculations for the project. <br /> <br />on=.CES IN DENVER. COLORADO SPRINGS, SALT LAKE CITY, PHOEN,)" '~i '<LAND &. IRVINE <br />