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<br />, <br /> <br />3~\ <br /> <br />, <br /> <br />(i) <br /> <br />Federal Emergency Management Agency <br />Washington, D.C, 204-72 <br /> <br />OCT 1 8 2000 <br /> <br />CERTIFIED MAIL <br />RETURN RECEIPT REQUESTED <br /> <br />IN REPLY REFER TO: <br />Case No.: OO,08C334P <br /> <br />The Honorable Gene Kinsey <br />Mayor, City of Grand Junction <br />250 North Fifth Street <br />Grand Junction, CO 8150 I <br /> <br />Community: City of Grand Junction, CO <br />Community No.: 080117 <br />Panel Affected: 0003 E <br />E~ectivepateof FEB 08 2001 <br />ThiS RevIsIon: <br /> <br />102-I-A-C <br /> <br />Dear Mayor Kinsey: <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) report for your community in <br />accordance with Part 65 of the National Flood Insurance Program (NFIP) regulations. In a letter dated <br />July 13,2000, Mr. Greg Trainor, Utility Manager, Public Works Department, City of Grand Junction, <br />requested that FEMA revise the FIRM and FrS report to_show the effects of more detailed topographic <br />information and existing culverts and grading changes along Horizon Drive Channel from approximately <br />200 feet upstream of its confluence with Leach Creek to Commerce Boulevard. <br /> <br />All data required to complete our review of this request were submitted with letters from Mr. Trainor. <br /> <br />We have completed our review of the submitted data and the flood data shown on the effective FIRM <br />and FIS report. We have revised the FIRM and FIS report to modify the elevations and floodplain and <br />floodway boundary delineations of the flood having a I-percent chance of being equaled or exceeded in <br />any given year (base flood) along Horizon Drive Channel from approximately 200 feet upstream of its <br />confluence with Leach Creek to Commerce Boulevard. As a result of the modifications, the Base Flood <br />Elevations (BFEs) for Horizon Drive Channel increased, and the widths of the Special Flood Hazard <br />Area (SFHA), the area that would be inundated by the base flood, and the regulatory floodway increased <br />in some areas and decreased in other areas. The modifications are shown on the enclosed annotated <br />copies of FIRM Panel 0003 E, Profile Panel 09P, and affected portions of the Floodway Data Table. <br />This Letter of Map Revision (LOMR) hereby revises the above-referenced panel of the effective FIRM <br />and the affected portions ofthe FIS report, both dated July 15, 1992. <br /> <br />Paragraph 60.3(d)(3) of the NFIP regulations prohibits encroachments, including fill, new construction, <br />substantial improvements, and other development within the adopted regulatory floodway unless it has <br />been demonstrated through hydrologic and hydraulic analyses performed in accordance with standard <br />engineering practice that the proposed encroachment would not result in an increase of flood levels <br />within the community during the base flood. Several increases in BFE along Horizon Drive Channel that <br />