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<br />, <br /> <br />. <br /> <br />. <br /> <br />CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE CITY <br /> <br />OF AURORA, ADAMS, ARAPAHOE, AND DOUGLAS COUNTIES, COLORADO, UNDER THE <br /> <br />NATIONAL FLOOD INSURANCE PROGRAM <br /> <br />On August 16, 1995, the Federal Emergency Management Agency (FEMA) identified Special <br /> <br />Flood Hazard Areas (SFHAs) in the City of Aurora, Adams, Arapahoe, and Douglas Counties; Colorado, <br /> <br />through issuance of a Flood Insurance Rate Map (FIRM). <br /> <br /> <br />The Mitigation Directorate has determined that modification of the elevations of the flood having <br /> <br />a I-percent chance of being equaled or exceeded in any given year (base flood) for certain locations in <br /> <br />the City of Aurora is appropriate. The modified base flood elevations (BFEs) revise the FEMA FIRM <br /> <br />for the community. <br /> <br />The changes are being made pursuant to Section 206 of the Flood Disaster Protection Act of 1973 <br /> <br />(Public Law 93-234) and are in accordance with the National Flood Insurance Act of 1968, as amended <br /> <br />(Title XIII of the Housing and Urban Development Act of 1968, Public Law 90-448), 42 U.S.C. 4001- <br /> <br />4128, and 44 CFR Part 65. <br /> <br />A hydraulic analysis was performed to incorporate the effects of channel modifications along Sand <br /> <br />Creek and the bridge crossing Sand Creek at Buckley Road, and has resulted in a revised delineation of <br /> <br />the regulatory floodway and SFHA and lower BFEs from approximately 2,000 feet upstream 'of <br /> <br />Chambers Road to approximately 3,500 feet upstream of East Colfax A venue. The table below indicates <br /> <br />the modified BFEs for several locations along the affected length of Sand Creek. <br />