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<br />CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE <br />UNINCORPORATED AREAS OF JEFFERSON COUNTY, COLORADO, UNDER THE NATIONAL <br />FLOOD INSURANCE PROGRAM <br /> <br />On August 5, 1986, the Federal Emergency Management Agency identified Special Flood Hazard Areas <br />(SFHAs) in the unincorporated areas of Jefferson County, Colorado, through issuance of a Flood Insurance <br />Rate Map (FIRM). The Mitigation Directorate has detennined that modification of the elevations of the <br />flood having a I-percent chance of being equaled or exceeded in any given year (base flood) for certain <br />locations in this community is appropriate. The modified Base Flood Elevations (BFEs) revise the FIRM <br />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 (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 perfonned to incorporate channel improvements along Weaver Creek from just <br />upstream of South Oak Street to just downstream of the Warrior Canal crossing and has resulted in a <br />decrease in SFHA width and increased BFEs for Weaver Creek. The aforementioned channelized portion <br />of Weaver Creek contains the base flood. The table below indicates existing and modified BFEs for <br />selected locations along the affected lengths ofthe flooding source(s) cited above. <br /> <br />Location <br /> <br />Existing BFE <br />(feet)" <br /> <br />Modified BFE <br />(feet)" <br /> <br />Approximately 350 feet downstream of Warrior <br />Canal crossing <br /> <br />5,532 <br /> <br />5,533 <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 which <br />he or she can request, through the Chief Executive Officer of the community, that the Mitigation <br />Directorate reconsider the detennination. 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 detennination 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 Michelle Lawrence <br />Chairperson, Jefferson County <br />Board of Commissioners <br />100 Jefferson County Parkway, Suite 5550 <br />Golden, CO 80419 <br />