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<br />Page 1 of5 I Issue Date: ..IAN. 1 8 ?nnli I Effective Date: MAY 1 1 2005 I Case No.: 04-08.0577P I lOMR-APP <br /> Follows Conditional Case No.: 02.08-500R <br /> - Federal Emergency Management Agency <br /> ~ ~ Washington, D.C. 20472 <br /> ~.. "'~ <br /> (-iND s~c; <br /> LETTER OF MAP REVISION <br /> DETERMINATION DOCUMENT <br /> COMMUNITY AND REVISION INFORMATION PROJECT DESCRIPTION BASIS OF REQUEST <br /> City of Thornton DETENTION BASIN HYDRAULIC ANALYSIS <br /> Adams County OTHER NEW TOPOGRAPHIC DATA <br />COMMUNITY Colorado <br /> COMMUNITY NO.: 080007 <br />IDENTIFIER Tigers Reservoir APPROXIMATE LATITUDE & LONGITUDE: 32.000, -104.925 <br /> SOURCE: USGS QUADRANGLE DATUM: NAD 29 <br />FLOODING SOURCE(S) & South Platte River - from approximately 2,350 feet upstream of McKay Road to just downstream of East 88th Avenue <br />REVISED REACH(ES) Tigers Reservoir Split Flow - along right overbank area of the South Platte River from approximately 3,900 feet upstream of <br />McKay Road to approximately 4,000 feet downstream of East 88th Avenue <br /> SUMMARY OF REVISIONS <br /> South Platte River Tillers Reservoir SPlit Flow <br />Effective FlOOding: Zone AE BFEs* Floodway Zone X (shaded) Zone AE BFEs* <br />Revised Flooding: ZoneAE BFEs Floodway Zone X (shaded) Zone AE BFEs <br />Increases: YES NO YES YES YES YES <br />Decreases: YES YES YES YES NO NO <br />* BFEs - Base Flood Elevations <br /> ANNOTATED MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES <br />TYPE: FIRM' NO.: 08001C0330 G Date: Augusl16,1995 DATE OF EFFECTIVE FLOOD INSURANCE STUDY REPORT: August 16,1995 <br /> PROFilES: 138P and 139p <br /> FlOODWAY DATA TABLE: 3 <br />* FIRM - Flood Insurance Rate Map; ** FBFM - Flood Boundary and Floodway Map; u* FHBM - Flood Hazard Boundary Map <br /> DETERMINATION <br />This document provides the determination from the Department of Homeland Security's Federal Emergency Management Agency (FEMA) <br />regarding a request for a Letter of Map Revision (LOMR) for the area described above. Using the informallon submitted, we have <br />determined that a revision to the flood hazards depicted in the Flood Insurance Study (FIS) report and/or Nationai Flood Insurance <br />Program (NFIP) map is warranted, This document revises the effective NFIP map, as indicated in Ihe attached documentation, Please <br />use the enclosed annotated map panels revised by this LOMR for floodplain management purposes and for ali flood insurance policies and <br />renewals in your community. <br />This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If <br />you have any questions about this document. please contact the FEMA Map Assistance Center toll free at 1~877-336-2677 (1~877-FEMA MAP) or by letter <br />addressed to the LOMR Depot, 3601 Eisenhower Avenue, Alexandria. VA 22304. Additional information about the NFIP is available on our website at <br />httO://WoNW .fema.aov/nfio. <br /> 4mC?ci;j <br /> Kevin C. Long, CFM, Project Engineer <br /> Hazard Identification Section <br /> Mitigation Division <br /> Emeraencv Prenaredness and Response Directorate 10292910.1,1,04080577102IAC <br /> <br />