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CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE TOWN OF EAGLE AND THE UNINCORPORATED AREAS OF EAGLE COUNTY, COLORADO, UNDER THE NATIONAL FLOOD INSURANCE PROGRAM On March 18, 1980, and January 25, 1983, respectively, the Department of Homeland Security's Federal Emergency Management Agency identified Special Flood Hazard Areas (SFHAs) in the Town of Eagle and in the unincorporated areas of Eagle County, Colorado, through issuance of Flood Insurance Rate Maps (FIRMs). The Mitigation Division 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 these communities is appropriate. The modified Base Flood Elevations (BFEs) revise the FIRMs for the communities. 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 the effects of the Eagle Ranch development, including construction of three bridges and grading, and updated topographic information. This has resulted in a revised delineation ofthe regulatory floodway, increases and decreases in SFHA width, and increased and decreased BFEs for Brush Creek from approximately 320 feet downstream to approximately 3.3 miles upstream of Sylvan Road. 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 (feet) * Modified BFE (feet) * 1 Approximately 170 feet downstream of Sylvan Road 1,2 Approximately 200 feet upstream of Sylvan Road 2 Approximately 2,570 feet upstream of private drive, or approximately 3.3 miles upstream of Sylvan Road 6,533 6,540 6,534 6,539 6,795 6,796 *National Geodetic Vertical Datum, rounded to nearest whole foot ITown of Eagle 2Unincorporated areas of Eagle County Under the above-mentioned Acts of 1968 and 1973, the Mitigation Division 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 Mitigation Division 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 Mitigation Division's determination to modify the BFEs may itselfbe changed.