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<br />.' <br /> <br />, . <br /> <br />CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE <br />UNINCORPORATED AREAS OF ARAPAHOE COUNTY, COLORADO, UNDER THE NATIONAL <br />FLOOD INSURANCE PROGRAM <br /> <br />On August 16, 1995, the Federal Emergency Management Agency identified Special Flood Hazard Areas <br />(SFHAs) in the unincorporated areas of Arapahoe County, Colorado, through issuance of a Flood <br />Insurance Rate Map (FIRM). The Mitigation Directorate has determined that modification of the <br />elevations of the flood having a I-percent chance of being equaled or exceeded in any given year (base <br />flood) for certain locations in this community is appropriate. The modified Base Flood Elevations (BFEs) <br />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 Act 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 hydraulic analysis was performed to incorporate construction of the E-470 bridge crossing and a <br />channelization project along Murphy Creek from approximately 1,500 feet downstream to approximately <br />1,500 feet upstream of E-470. This has resulted in a revised delineation of the regulatory floodway, <br />increases and decreases in SFHA width, and increased and decreased BFEs for Murphy Creek. The table <br />below indicates existing and modified BFEs for selected locations along the affected lengths of the <br />flooding source( s) cited above. <br /> <br />Location <br /> <br />Existing BFE <br />(feet)* <br /> <br />Modified BFE <br />(feet)* <br /> <br />Approximately 150 feet upstream of E-4 70 <br />Approximately 300 feet upstream ofE-470 <br /> <br />5,546 <br />5,547 <br /> <br />5,547, <br />5,548' <br /> <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 <br />which 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 of <br />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 /> <br />Any person having knowledge or wishing to comment on these changes should immediately notify: <br /> <br />The Honorable John Brackney <br />Chairman, Arapahoe County Board <br />of Commissioners <br />5334 South Prince Street <br />Littleton, CO 80166 <br />