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R fractim e n."C A Federal Emergency Management Agency Washington, D.C. 20472 AUG 2 72001 CERTIFIED MAIL RETURN RECEIPT REQUESTED IN REPLY REFER TO: Case No.: 02-08-016P The Honorable Josh Joswick Chair, La Plata County Boazd of Commissioners 1060 East Second Avenue Durango, CO 81301 Dear Mr. Joswick: Community: La Plata County, CO Community No.: 080097 Panels Affected: 0266 B, 0267 C, 0268 B, and 0269 B Effective Date of SEP 2 72001 This Revision: 102-I-C This responds to a request that the Federal Emergency Management Agency (FEMA) revise the effective Flood Insurance Rate Map (FIRM) for your community in accordance with Part 65 of the National Flood Insurance Program (NFIP) regulations. In a letter dated October 31, 2001, Mr. Butch Knowlton, Floodplain Administrator, La Plata County, requested that FEMA revise the FIRM to show the effects of updated topographic information along the Animas River from approximately 3,250 feet downstream to approximately 7,000 feet upstream of Trimble Lane. All data required to complete our review of this request were submitted with letters from Mr. Knowlton. Because this Letter of Map Revision (COMA) is based on flood hazard information meant to improve upon that shown on the flood map or within the flood study, and does not partially or wholly incorporate manmade modifications within the Special Flood Hazard Area (SFHA), fees were not assessed for the review. The SFHA is the area that would be inundated by the flood having a 1-percent chance of being equaled or exceeded in any given year (base flood). We have completed our review of the submitted data and the flood data shown on the effective FIRM. We have revised the FIRM to modify the floodplain boundary delineations and zone designations of the base flood along the Animas River from approximately 3,250 feet downstream to approximately 7,000 feet upstream of Trimble Lane. As a result of the modifications, the width of the SFHA for the Animas River increased in some areas and decreased.in other areas. The modifications are shown on the enclosed annotated copies of FIRM Panels 0266 B, 0267 C, 0268 B, and 0269 B. This LOMR hereby revises effective FIRM Panels 0266 B, 0268 B, and 0269 B dated December 15, 1981, and effective FIRM Panel 0267 C dated March 16, 1995. As part of this LOMR, the format of the map panels changed. Previously, flood hazard information was shown on both the FIRM and Flood Boundary and Floodway Map (FBFM). In the new format, all Base Flood Elevations, cross sections, zone designations, and floodplain and floodway boundary delineations