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Federal Emergency Management Agency Washington, D.C. 20472 CERTIFIED MAIL RETURN RECEIPT REQUESTED IN REPLY REFER TO: Case No.: 97-08-360P The Honorable Polly Page Chairperson, Board of County Commissioners Arapahoe County 5334 South Prince Street Littleton, Colorado 801 66 Community: Arapahoe County, Colorado Community No.: 080011 Panels Affected: 08005C0480 J and 0485 J E~ective.I?ateof NOV 0 3 1997 TIus ReVISIOn: 102-I-A-C Dear Ms. Page: 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 Arapahoe 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 September 6, 1997, Mr. David A. Guetig, P.E., Galloway, Romero & Associates, requested that FEMA revise the FIRM and FIS report to show the effects of stream rehabilitation and stabilization measures and placement of fill along Piney Creek near the Mee and Denver Wholesale Florist properties. This request follows up on a Conditional Letter of Map Revision issued on September 6, 1995. All data required to complete our review of this request were submitted with Mr. Guetig' s letter. We have completed our review of the submitted data and the flood data shown on the effective FIRM and FIS report. We have revised the FIRM and FIS report to modify the elevations and floodplain and floodway boundary delineations of the flood having a I-percent chance of being equaled or exceeded in any given year (base flood) along Piney Creek. As a result of the modifications, the base flood elevations (BFEs) for Piney Creek increased in some areas and decreased in other areas; 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; and the width of the regulatory floodway increased in some areas and decreased in other areas. The modifications are shown on the enclosed annotated copies of FIRM Panel(s) 08005C0480 J and 08005C0485 J, Profile Panel(s) 151P, and affected portions of the Floodway Data Table. Modifications to the Floodway Data Table from Cross Section A to Cross Section I are as a result of the above-mentioned stream rehabilitation and stabilization measures and placement of fill along Piney Creek. From Cross Section J to Cross Section Z, the Floodway Data Table in the effective FIS report was incorrect and was revised to reflect the correct information from the 1993 restudy of Piney Creek. This LOMR hereby revises the above-referenced panel(s) of the effective FIRM and the affected portions of the FIS report, both dated August 16, 1995. The modifications are effective as of the date shown above. The map panel(s) as listed above and as modified by this letter will be used for all flood insurance policies and renewals issued for your community.