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<br />Page 1 of5 Issue Date: SEP 20 2004 I Effective Date: JAN 1 21.llO5- I Case No.: 04-08-0410P I LOMR,APP <br /> ~YJ\RT.-\f~ <br /> .;'~..J:t'?o Federal Emergency Management Agency <br /> ~.~ Washington, D.C. 20472 <br /> :t:~ :vq, <br /> .(.1]ljo s~c <br /> LETTER OF MAP REVISION <br /> DETERMINATION DOCUMENT <br /> COMMUNITY AND REVISION INFORMATION PROJECT DESCRIPTION BASIS OF REQUEST <br /> Weld County BRIDGE HYDROLOGIC ANALYSIS <br /> Colorado CHANNELIZATION HYDRAULIC ANALYSIS <br />COMMUNITY (Unincorporated Areas) CULVERT NEW TOPOGRAPHIC DATA <br /> COMMUNITY NO.: 080266 <br /> TriArea APPROXIMATE LATITUDE & LONGITUDE: 40.12, ,104.93 <br />IDENTIFIER SOURCE: USGS QUADRANGLE DATUM: NAD 83 <br /> Tri-Area Drainageway - from approximately 200 feet upstream of County Road (Grant Avenue) to just dOVJl1stream of County <br />FLOOOING SOURCE(S) & Road 14 <br />REVISED REACH(ES) Shallow Flooding Areas - from the confluence with the Tri-Area Drainageway to approximately 1.100 feet upstream in the <br /> right overbank <br /> SUMMARY OF REVISIONS <br /> Tri-Area Drainal!ewav Shallow Floodino Areas <br />Effective Flooding: Zone AE BFEs* Floodway Effective Flooding: Zone AE <br />Revised Flooding: Zone X (unshaded) BFEs Floodway Revised Flooding: Zone AQ <br />Increases: NONE YES YES Increases: NONE <br />Decreases: YES YES YES Decreases: NONE <br />* BFEs Base Flood Elevations <br /> ANNOTATEO MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES <br />TYPE: FIRM' NO.: 0802660863 C Dale: September 28, 1982 DATE OF EFFEC'TM" FLCXJlJ INSURIWCE STUDY REPORT: September 22. 1999 <br />TYPE: FBFM" NO.: 0802660011 Date: September 28. 1990 FLOODWAY DATA TABLE <br /> PROFILES: 36P through 40P <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 Ihe area described above. Using the information submitted, we have <br />determined that a revision 10 the flood hazards depicted in the Fiood 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 Ihe 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 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:l/www.fema.oov/nfio. <br /> =l<'w,;"E~ <br /> Kevin C. Long, CFM, Project Engineer <br /> Hazard Identification Section <br /> Mitigation Division <br /> Emeroencv Prenaredness and Resnonse Directorate 102426 DA04080410 1021AC <br /> <br />