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<br />CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE CITY <br />OF LITTLETON, ARAPAHOE COUNTY, COLORADO, UNDER THE NATIONAL FLOOD <br />INSURANCE PROGRAM <br /> <br />On September 29, 1989, the Federal Emergency Management Agency identified Special Flood Hazard <br />Areas (SFHAs) in the City of Littleton, Arapahoe County, Colorado, through issuance of a Flood <br />Insurance Rate Map (FIRM), The Federal Insurance and Mitigation Administr:ation has determined that <br />modification of the elevations of the flood having a I-percent chance of being equaled or exceeded in any <br />given year (base flood) for certain locations in this community is appropriate. The modified Base Flood <br />Elevations (BFEs) revise the FIRM for the community. <br /> <br />The changes are being made pursuant to Section 206 of the Flood Disaster Protection Act of 1973 (Public <br />Law 93-234) and are in accordance with the National Flood Insurance Ac:;t of 1968, as amended <br />(Title XIII of the Housing and Urban Development Act of 1968, Public Law 90-448), 42 U.S,C. <br />4001-4128, and 44 CFR Part 65, <br /> <br />A revised hydraulic analysis was performed for Slaughterhouse Gulch to incorporate a revised hydrologic <br />analysis from Power's Park Pond, approximately 200 feet upstream of South Huron Street, downstream to <br />the confluence with the South Platte River and construction of a culvert between South Prince Street and <br />the South Platte River, This has resulted in a revised delineation of the regulatory floodway, increases <br />and decreases in SFHA width, and increased and decreased BFEs for S.1aughtel'house Gulch. The table <br />below indicates existing and modified BFEs for selected locations along the affected lengths of the <br />flooding source(s) l!ited above. <br /> <br />Location <br /> <br />Existing BFE <br />(feet)* <br /> <br />Modified BFE <br />(feet) * <br /> <br />Just upstream of South Prince Street <br />Just upstream of Denver & Rio Grande Western Railroad <br />Just upstream of South Huron Street <br /> <br />5,323 <br />5,345 <br />5,410 <br /> <br />5,325 <br />5,344 <br />5,411 <br /> <br />*National Geodetic Vertical Datum, rounded to nearest whole foot <br /> <br />Under the above-mentioned Acts of 1968 and 1973, the Federal Insurance and Mitigation Administration <br />must develop criteria for floodplain management. To participate in the National Flood Insurance Program <br />(NFIP), the community must use the modified BFEs to administer the floodplain management measures <br />of the NFIP, These modified BFEs will also be used to calculate the appropriate flood insurance premium <br />rates for new buildings and their contents and for the second layer of insurance on existing buildings and <br />contents, <br /> <br />Upon the second publication of notice of these changes in this newspaper, any person has 90 days in <br />which he or she can request, through the Chief Executive Officer of the community, that the Federal <br />Insurance and Mitigation Administration reconsider the determination, Any n:quest for reconsideration <br />must be based on knowledge of changed conditions or new scientific or technical data, All interested <br />parties are on notice that until the 90-day period elapses, the Federal Insurance and Mitigation <br />Administration's determination to modify the BFEs may itself be changed. <br /> <br />Any person having knowledge or wishing to comment on these changes should immediately notify: <br /> <br />The Honorable Susan M. Thornton <br />Mayor, City of Littleton <br />2255 West Berry Avenue <br />Littleton, CO 80165 <br />