FLOOD10352 (2) - Laserfiche WebLink

Home Browse Search

Federal Emergency Managem.ent Agency Washington, D.C. 20472 OCT 0 1 2002 CERTIFIED MAIL RETURN RECEIPT REQUESTED IN REPLY REFER TO: Case No.: 02-08-283P The Honorable Noel Busck Mayor, City of Thornton 9500 Civic Center Drive Thornton, CO 80229 Community: City of Thornton, CO Community No.: 080007 Panel Affected: 08001C0335 G Effective Date of J A I~ 3 0 2003 This Revision: . 102-I-A-C Dear Mayor Busck: This responds to a request that the Federal Emergency Management Agency (FEMA) revise the effective Flood Insurance Rate Map (FIRM) and Flood Insurance Study (FIS) report for Adams County, Colorado and Incorporated Areas (the effective FIRM and FIS report for your community), in accordance with Part 65 of the National Flood Insurance Program (NFIP) regulations. In a letter dated April 16, 2002, , P.E., Black & Veatch Corporation, requested that FEMA r(~vise the FIRM and FIS report to show the effects of updated topographic information for the South Platte River from approximately 500 feet upstream of East 104th Avenue to approximately 3,100 feet downstream of East 88th Avenue. All data required to complete our review of this request were submitted with letters from _ J We have completed our review of the submitted data and the flood data shown on the effective FIRM and in the effective FIS report. We have revised the FIRM and FIS report to modify the elevations and floodplain boundary delineations of the flood having a I-percent chance of being equaled or exceeded in any given year (base flood) in the left overbank area along the South Platte River approximately 4,000 feet downstream of East 88th Avenue. As a result ofthe modifications, the Base Flood Elevations (BFEs) for the South Platte River decreased, and the width of the Special Flood Hazard Area (SFHA), the area that would be inundated by the base flood, increased in some areas and decreased in other areas. The modifications are shown on the enclosed annotated copies of FIRM Panel 0800IC0335 G and Profile Panel 138P. This Letter of Map Revision (LOMR.) hereby revises the above-referenced panel of the effective FIRM and the affected portions of the FIS report, both dated August 16, 1995. Because this revision request also affects the City of Commerce City and the unincorporated areas of Adams County, separate LOMRs for those communities were issued on the sam(~ date as this LOMR. The modifications are effective as of the date shown above. The map panel listed above and as modified by this letter will be used for all flood insurance policies and renewals issued for your community.