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CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE CITY OF FORT COLLINS, LARIMER COUNTY, COLORADO, UNDER THE NATIONAL FLOOD INSURANCE PROGRAM On March 18, 1996, the Federal Emergency Management Agency identified Special Flood Hazard Areas (SFHAs) in the City of Fort Collins, Larimer County, Colorado, through issuance of a Flood Insurance Rate Map (FIRM). The Federal Insurance and Mitigation Administration has determined that modification of the elevations of the flood having a I-percent chance of being equaled or exceeded in any given year (base flood) for certain locations in this community is appropriate. The modified Base Flood Elevations (BFEs) revise the FIRM for the community. The changes are being made pursuant to Section 206 of the Flood Disaster Protection Act of 1973 (Public Law 93-234) and are in accordance with the National Flood Insurance Act of 1968, as amended (Title XIII of the Housing and Urban Development Act of 1968, Public Law 90-448), 42 U.S.C. 4001-4128, and 44 CFR Part 65. A hydraulic analysis was performed to incorporate a channel improvement project from just upstream to approximately 540 feet upstream of Lemay Avenue along Spring Creek that included construction of a new gravel driveway, repair of adjacent pedestrian trails, removal of an existing culvert and driveway, installation of a rock drop structure, and addition of buried-rock bank protection. This has resulted in a revised delineation of the regulatory f100dway and a decrease in SFHA width from approximately 300 feet downstream to approximately 1,120 feet upstream of Lemay Avenue, and decreased BFEs for Spring Creek from approximately 80 feet downstream to approximately 900 feet upstream of Lemay Avenue. The aforementioned channelized portion of Spring Creek contains the base flood. The table below indicates existing and modified BFEs for selected locations along the affected lengths of the flooding source( s) cited above. Location Existing BFE (foot)* Modified BFE (feet)* Approximately 30 feet upstream of Lemay Street Approximately 450 feet upstream of Lemay Street 4,942 4,946 4,941 4,945 *National Geodetic Vertical Datum, rounded to nearest whole foot Under the above-mentioned Acts of 1968 and 1973, the Federal Insurance and Mitigation Administration must develop criteria for floodplain management. To participate in the National Flood Insurance Program (NFIP), the community must use the modified BFEs to administer the floodplain management measures of the NFIP. These modified BFEs will also be used to calculate the appropriate flood insurance premium rates for new buildings and their contents and for the second layer of insurance on existing buildings and contents. Upon the second publication of notice of these changes in this newspaper, any person has 90 days in which he or she can request, through the Chief Executive Officer of the community, that the Federal Insurance and Mitigation Administration reconsider the determination. Any request for reconsideration must be based on knowledge of changed conditions or new scientific or technical data. All interested parties are on notice that until the 90-day period elapses, the Federal Insurance and Mitigation Administration's determination to modify the BFEs may itself be changed.