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<br />Q <br /> <br />CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE CITY <br /> <br /> <br />OF AURORA, ADAMS, ARAPAHOE, AND DOUGLAS COUNTIES, COLORADO, UNDER THE <br /> <br /> <br />NATIONAL FLOOD INSURANCE PROGRAM <br /> <br /> <br />On August 16, 1995, the Federal Emergency Management Agency (FEMA) identified Special <br /> <br /> <br />Flood Hazard Areas (SFHAs) in the City of Aurora, Adams, Arapahoe, and Douglas Counties, Colorado, <br /> <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 /> <br />a I-percent chance of being equaled or exceeded in any given year (base flood) for certain locationsin <br /> <br /> <br />the City of Aurora is appropriate. The modified base flood elevations (BFEs) revise the FEMA FIRM <br /> <br /> <br />for the community. <br /> <br /> <br />The changes are being made pursuant to Section 206 of the Flood Disaster Protection Act of 1973 <br /> <br /> <br />(Public Law 93,234) and are in accordance with the National Flood Insurance Act of 1968, as amended <br /> <br /> <br />(Title XIII of the Housing and Urban Development Act of 1968, Public Law 90,448), 42 U.S_C. 4001- <br /> <br /> <br />4128, and 44 CFR Part 65, <br /> <br /> <br />Hydrologic and hydraulic analyses were performed to incorporate more detailed information and <br /> <br /> <br />to reflect the effects of channel modifications along Westerly Creek and Westerly Creek Dam. The <br /> <br /> <br />analyses have resulted in a reduction in SFHA and lower BFEs from approximately 500 feet downstream <br /> <br /> <br />to just downstream of Havana Street, the addition of BFEs along Westerly Creek from approximately <br /> <br /> <br />850 feet downstream to approximately 500 feet downstream of Havana Street, and the addition of the <br /> <br /> <br />SFHA and BFEs associated with the Westerly Creek Overflow. The table below indicates the modified <br /> <br /> <br />BFEs for several locations along the affected lengths of Westerly Creek and Westerly Creek Overflow. <br /> <br />... <br />