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<br />Page 1 of 5 I Issue Date: MAY 11 2006 I Effective Date: MAY 11 2006 I Case No.: 06.08-B034P I LOMR-APP <br /> - <br /> I~.:I Federal Emergency Management Agency <br /> ~ [., Washington, D.C. 20472 <br /> ~ ~ <br /> ~~-i1{D s~'C>.. <br /> - <br /> LETTER OF MAP REVISION <br /> DETERMINATION DOCUMENT <br />COMMUNITY AND REVISION INFORMATION PROJECT DESCRIPTION BASIS OF REQUEST <br /> City of Thornton CULVERT HYDRAULIC ANALYSIS <br /> Adams County FILL NEW TOPOGRAPHIC DATA <br /> Colorado <br />COMMUNITY <br /> COMMUNITY NO.: 080007 <br />IDENTIFIER Holly Street Extension Box Culverts APPROXIMATE LATITUDE & LONGITUDE: 39.318, -104.556 <br /> SOURCE: Other DATUM: NAD 83 <br /> ANNOTATED MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES <br />TYPE: FIRM' NO.: 08001C0045 G DATE: August 16, 1995 NO REVISION TO THE FLOOD INSURANCE STUDY REPORT <br />Enclosures reflect changes to flooding sources affected by this revision, <br />* FIRM - Flood Insurance Rate Map; .. FBFM - Flood Boundary and Floodway Map; ..* FHBM - Flood Hazard Boundary Map <br /> FLOODING SOURCE(S) & REVISED REACH(ES) <br />Grange Hall Creek - from approximately 3,150 feet upstream to approximately 6,000 feet upstream of the confluence with the South Platte River <br /> SUMMARY OF REVISIONS <br />Flooding Source Effective Flooding Revised Flooding Increases Decreases <br />Grange Hall Creek Zone A Zone A YES YES <br />, BFEs - Base Flood Elevations <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 information submitted, we have determined that <br />a revision to the flood hazards depicted in the Flood Insurance Study (FIS) report and/or National Flood Insurance Program (NFIP) map is <br />warranted. This document revises the effective NFIP map, as indicated in the attached documentation. Please use the enclosed annotated map <br />panels revised by this LOMR for floodplain management purposes and for all flood insurance policies and renewals in your community. <br />This determination is based on the flood data presently available. The enclosed documents provide additional information fegarding this determination. If you have <br />any questions about this document, please contact the FEMA Map Assistance Center toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the <br />LOMR Depot, 3601 Eisenhower Avenue, Alexandria, VA 22304. Additional Information about the NFIP is available on OUf website at http://www.fema.gov/nfip. <br /> ~e~ <br /> Kevin C. Long, CFM, Project Engineer <br /> Engineering Management Section <br /> Mitigation Division 10697910.3.4.01.0608B034 102-I-C <br />