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~'bvl " Federal Emergency Management Agency Washington, D.C. 20472 JUL 26 2lXXl CERTIFIED MAIL RETURN RECEIPT REQUESTED IN REPLY REFER TO: Case N o. :~~"Q8cll4"P The Honorable Gene Kinsey Mayor, City of Grand Junction 250 North Fifth Street Grand Junction, CO 81501-2668 Community: City of Grand Junction, CO Community No.: 080117 Panels Affected: 0007 E and 0009 E Effective Date of NO Y 2 2 2000 This Revision: 102-I-A-C Dear Mayor Kinsey: 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 your community in accordance with Part 65 of the National Flood Insurance Program (NFIP) regulations. In a letter dated December 18,1998, Mr. Jerry Don Newton, P.E., City Engineer, City of Grand Junction, requested that FEMA revise the FIRM and FIS report to show the effects of updated topographic information from just upstream of the Denver and Rio Grande Western Railroad (DRGWRR) to approximately 5,400 feet upstream of U.S. Highway 50 (US50), also known as Fifth Street, and construction of a flood-control levee and several detention basins along the Colorado River from just upstream of the DRGWRR to approximately 2,750 feet upstream of US 50. All data required to complete our review of this request were submitted with letters from Mr. Mike Best, Senior Engineering Technician, City of Grand Junction, and Mr. Newton. Because this Letter of Map Revision (LOMR) shows the effects of a federally sponsored flood-control project where 50 percent or more of the project's costs are federally funded, fees were not assessed for the review. 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 the Colorado River from just upstream of the DRGWRR to approximately 5,400 feet upstream of US 50. As a result of the modifications, the base flood elevations (BFEs) for the revised reach 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, decreased; and the width of the regulatory floodway increased in some areas and decreased in other areas. The increases in BFE are a result of incorporation of the updated topographic information and construction of the levee. All property owners were notified of the BFE increases with a letter from Mr. Newton dated January 25, 2000. The modifications are shown on the enclosed annotated copies of FIRM Panel(s) 0007 E and 0009 E, Profile Panel(s) 01P and 02P, and affected portions of the Floodway Data Table. This LOMR hereby revises the above-referenced panel(s) of the effective FIRM and the affected portions of the FIS report, both dated July 15, 1992.