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<br />102-I-A-C <br /> <br /> <br />, . <br /> <br />.' <br /> <br /> <br />Federal Emergency Management Agency <br />Washington, D.C. 20472 <br /> <br />APR 2 3 2003 <br /> <br />CERTIFIED MAIL <br />RETURN RECEIPT REQUESTED <br /> <br />IN REPLY REFER TO: <br />Case No.: 03-08-0104P <br /> <br />The Honorable Elaine T. Valente <br />Chairman, Adams County <br />Board of Commissioners <br />450 South Fourth Avenue <br />Brighton, CO 80601 <br /> <br />Community: Adams County, CO <br />Community No.: 080001 <br />Panels Affected: 08001C0309 G, 0320 G, <br />0330 G, and 0340 G <br />Ef~ective.~ate of AUG 2 0 2003 <br />This ReVISIOn: <br /> <br />Dear Ms. Valente: <br /> <br />This responds to a request that the Federal Emergency Management Agency (FEMA) revise the effective <br />Flood Insurance Rate Map (FIRM) and Flood Insurance Study (FIS) Teport fOT Adams County, Colorado <br />and Incorporated Areas, in accordance with Part 65 of the National Flood Insurance Program (NFIP) <br />regulations. In a letter dated November 13, 2002, Ms, Kristy McGovern, Project Manager, Water & Waste <br />Engineering, Inc., requested that FEMA revise the FIRM and FIS report to show the effects of a revised <br />hydraulic analysis for Clear Creek from approximately 3,300 feet downstream of Pecos Street to the <br />Colorado & Southern Railroad. The revised hydraulic analysis included the effects of updated topographic <br />data, the new Pecos Street bridge that replaced the previous bridge at Pecos Street, the Interstate <br />Highway 76 embankment on the south side of Clear Creek, and the widening of the Clear Creek channel <br />upstream and downstream of the new Pecos Street bridge. This request follows up on a Conditional Letter <br />of Map Revision issued on December 14, 2000. <br /> <br />All data required to complete our review of this request were submitted with letters from Ms. McGovern. <br /> <br />We have completed our review of the submitted data and the flood data shown on the effective FIRM and <br />in the effective FIS report. We have revised the FIRM and FIS report to modifY the elevations, floodplain <br />and floodway boundary delineations, and zone designations of the flood having a I-percent chance of . <br />being equaled or exceeded in any given year (base flood) along the Tevised reach of Clear Creek, As a <br />result of the modifications, the Base Flood Elevations (BFEs) for Clear Creek and the width of the Special <br />Flood Hazard Area (SFHA), the area that would be inundated by the base flood, increased in some areas <br />and decreased in other areas. As part of this request, a regulatory floodway was developed along the <br />revised reach of Clear Creek. The modifications are shown on the enclosed annotated copies of FIRM <br />Panels 08001 C0309 G, 08001C0320 G, 08001 C0330 G, and 08001C0340 G; PTofile Panels 37P and 38P; <br />and affected portions of the Floodway Data Table. This Letter of Map Revision (LOMR) hereby revises <br />the above-referenced panels of the effective FIRM and the affected portions ofthe FIS report, both dated <br />August 16, 1995. <br /> <br />The modifications are effective as ofthe date shown above. The map panels as listed above and as <br />modified by this letter will be used for all flood insurance policies and renewals issued for your <br />community, <br />