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<br />SUMMARY OF PROPOSED PROJECT <br />WELD COUNTY TRI-AREA SANITATION DISTRICT <br />STORMW ATER DETENTION FACILITY <br /> <br />Project Sponsor: Weld County Tri-Area Sanitation District <br /> <br />Type of Proiect: Municipal- drainage and flood control <br /> <br />Location: Immediately south of Frederick at the intersection of 8th Street and Main <br />Street and about 'is mile n~rth of Colorado Highway 52 in Weld County. <br /> <br />Date of Application: October 28, 1998 and January 24,2000 <br /> <br />Feasibilitv StudY: Submitted January 2000 by the Sear-Brown Group of Fort Collins <br />(revised March 2000) <br /> <br />Project Description: The District is proposing a regional detention pond project that will <br />reduce the peak historic flows in the Tri- Town Drainageway and thereby reduce the <br />extent of flooding in the communities of Evanston, Firestone and Frederick. The pond <br />will be located on 60 acres of agricultural land immediately south of Frederick as shown <br />on the attached site map. It will have the capacity to store 146 acre-feet during the 100- <br />year storm event. Maximum inflow to the pond during the 1 DO-year storm event will be <br />about 2,000 cubic feet per second (cfs) and the pond will be designed for a maximum <br />release rate of 567 cfs thus providing significant attenuation of the peak discharge. The <br />pond is designed to drain in about 40 hours and the project site will be used for open <br />space and recreational purposes when the pond is empty. The pond will also serve to <br />reduce the volume of pollution from storm water runoffby providing detention and <br />settling of runoff. <br /> <br />Estimated Project Cost: $2,065,478 <br /> <br />Fundin2 Requested: $1,500,000 <br />