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<br />CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE TOWN <br />OF COLUMBINE V ALLEY, THE CITY OF LITTLETON, AND THE UNINCORPORATED AREAS <br />OF ARAPAHOE COUNTY, COLORADO, UNDER THE NATIONAL FLOOD INSURANCE <br />PROGRAM <br /> <br />The Federal Emergency Management Agency identified Special Flood Hazard Areas (SFHAs) in the City <br />of Littleton on September 29, 1989, and in the Town of Columbine Valley and the unincorporated areas <br />of Arapahoe County, Colorado, on August 16, 1995, through issuance of Flood Insurance Rate Maps <br />(FIRMs). The Mitigation Directorate has determined that modification of the elevations of the flood having <br />a I-percent chance of being equaled or exceeded in any given year (base flood) for certain locations in <br />these communities is appropriate. The modified base flood elevations (BFEs) revise the FIRMs for the <br />communities. <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 Act of 1968, as amended (Title XIII <br />of the Housing and Urban Development Act of 1968, Public Law 90-448), 42 U.S.C. 4001-4128, and <br />44 CFR Part 65. <br /> <br />A hydraulic analysis was performed to incorporate updated topographic information and has resulted in <br />an increase and decrease in SFHA width and increases and decreases in BFEs for SlCD 6100. The table <br />below indicates existing and modified BFEs for selected locations along the affected lengths of the flooding <br />source(s) cited above. <br /> <br /> Existing BFE Modified BFE <br />Location (feet) * (feet) * <br />Approximately 1,650 feet downstream <br />of Platte Canyon Road1 5,372 5,370 <br />Approximately 900 feet downstream <br />of Platte Canyon Road2 5,374 5,373 <br />Approximately 50 feet downstream <br />of Platte Canyon Road2 5,388 5,390 <br /> <br />lAffects Town of Columbine Valley and City of Littleton <br />2 Affects Town of Columbine Valley and unincorporated areas of <br />Arapahoe County <br />*National Geodetic Vertical Datum, rounded to nearest whole foot <br /> <br />Under the above-mentioned Acts of 1968 and 1973, the Mitigation Directorate must develop criteria for <br />floodplain management. To participate in the National Flood Insurance Program (NFIP), the community <br />must use the modified BFEs to administer the floodplain management measures of the NFIP. These <br />modified BFEs will also be used to calculate the appropriate flood insurance premium rates for new <br />buildings and their contents and for the second layer of insurance on existing buildings and contents. <br /> <br />Upon the second publication of notice of these changes in this newspaper, any person has 90 days in which <br />he or she can request, through the Chief Executive Officer of the community, that the Mitigation <br />Directorate reconsider the determination. Any request for reconsideration must be based on knowledge <br />of changed conditions or new scientific or technical data. All interested parties are on notice that until the <br />90-day period elapses, the Mitigation Directorate's determination to modify the BFEs may itself be <br />changed. <br />