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<br />_ Page 1 of 5 !Issue Date: MAR '2 9 2004 I Effective Date: JUL 1 6 7004 I Case No.: 04-08-0108P I LOMR-APP <br /> Follows Conditional Case No.: 03-08-0032R <br /> 8" Federal Emergency Management Agency <br /> I~~~ <br /> 't, 't: Washington, D.C. 20472 <br /> ~<"l.lVD ,if$! <br /> LETTER OF MAP REVISION <br /> DETERMINATION DOCUMENT <br /> COMMUNITY AND REVISION INFORMATION PROJECT DESCRIPTION BASIS OF REQUEST <br /> City and County of Broomfield CULVERT HYDRAULIC ANALYSIS <br /> Colorado FILL NEW TOPOGRAPHIC DATA <br />COMMUNITY CHANNEL RELOCATION HYDROLOGIC ANALYSIS <br /> CHANNELIZATION <br /> COMMUNITY NO.: 085073 <br />IDENTIFIER E-470 at Big Dry Creek - North Area Tributaries APPROXIMATE LATITUDE & LONGITUDE: 40" 0.012', 1040 58.859' <br />SOURCE: USGS QUADRANGLE DATUM: NGVD 29 <br /> Mustang Run _ from approximately 2,200 feet upstream to approximately 2,800 feet upstream of the oonfluence with Big Dry <br /> Creek and from Interstate Highway 25 (1-25) to approximately 800 feet upstream <br />FLOODING SOURCE(S) & Sack Creek South - from approximately 1,600 feet upstream of the confluence with Sack Creek to the dual confluence of <br />Sack Creek South _ North Alignment and Sack Creek South - South Alignment located approximately 2.100 feet upstream <br />REVISED REACH(ES) of the confluence with Sack Creek <br /> Sack Creek South _ North A1ignment- from the oonfluence with Sack Creek South to approximately 900 feet upstream of 1.25 <br /> Sack Creek South South A1k,nment from the oonfluence with Sack Creek South to annroximatelv 600 feet uostream of 1-25 <br /> SUMMARY OF REVISIONS <br />Effective Flooding: Zone A <br />Revised Flooding: Zone A <br />Increases: YES <br />Decreases: YES <br />*BFEs Base Flood Elevations <br /> ANNOTATED MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES <br />TYPE: FIRM' NO.: 0850730010 D Date: September 30.1997 NO REVISION TO THE FLOOD INSURANCE STUDY REPORT <br />. FIRM _ Flood Insurance Rate Map:" FBFM - Flood Boundary and Floodway Map; .., 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 information submitted, we have <br />determined that a revision to the flood hazards depicted in the Flood Insurance Study (FIS) report andlor National Flood Insurance <br />Program (NFIP) map is warranted. This document revises the effective NFIP map, as indicated in the attached documentation. Please <br />use the enclosed annotated map panelS revised by this LOMR for floodplain management purposes and for all flood insurance policies and <br />renewals in your community. <br />This detennination 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 oontactthe 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 infolTTlation about the NFIP is available on OUf website at <br />htto://wNw fema.oov/nfio. <br /> ~~ <br /> Doug Bellomo. P,E.. CFM. Acting Chief <br /> Hazard Identification Section <br /> Mitigation Division <br /> Emeraencv Prenaredness and Resnonse Directorate 102426D,AU4080108102IC <br />