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<br />CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE CITY <br />AND COUNTY OF BROOMFIELD, COLORADO, UNDER THE NATIONAL FLOOD INSURANCE <br />PROGRAM <br /> <br />On August 18, 2004, the Department of Homeland Security's Federal Emergency Management Agency <br />identified Special Flood Hazard Areas (SFHAs) in the City and County of Broomfield, Colorado, through <br />issuance of a Flood Insurance Rate Map (FIRM). The Mitigation Division has determined that <br />modification of the Base (I-percent-annual-chance) Flood Elevations (BFEs) for certain locations in this <br />community is appropriate. The modified 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 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 the effects of channel relocation along Gay Reservoir <br />Channel North Tributary, associated with construction of the Redleaf Subdivision Filing No. 2 <br />development. This has resulted in a revised delineation of the regulatory floodway, increases and <br />decreases in SFHA width, and increased BFEs for Gay Reservoir Channel North Tributary. 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 1,420 feet upstream of confluence <br />with Gay Reservoir Channel <br />Approximately 1,870 feet upstream of confluence <br />with Gay Reservoir Channel <br /> <br />5,308 <br /> <br />5,310 <br /> <br />5,321 <br /> <br />5,322 <br /> <br />*North American Vertical Datum, rounded to nearest whole foot <br /> <br />Under the above-mentioned Acts of 1968 and 1973, the Mitigation Division 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 />Division 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 Division'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 Karen Stuart <br />Mayor, City and County of Broomfield <br />One DesCombes Drive <br />Broomfield, CO 80020 <br />