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. .. CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE CITY OF LONGMONT, BOULDER COUNTY, COLORADO, UNDER THE NATIONAL FLOOD INSURANCE PROGRAM On June 2, 1995, the Federal Emergency Management Agency identified Special Flood Hazard Areas (SFHAs) in the City of Longmont, Boulder County, Colorado, through issuance ofa Flood Insurance Rate Map (FIRM). The Mitigation Directorate 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 this community is appropriate. The modified base flood elevations (BFEs) revise the FIRM for the community . 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 xrn 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 updated topographic information associated with placement of fill in the overbanks of Lefthand Creek; construction of a cutoff channel parallel to South Main Street from Lefthand Creek to approximately 2,000 feet south; and channelization along Lefthand Creek from just dOWIlStream to approximately 1,200 feet dOWIlStream of South Main Street and has resulted in increases and decreases in SFHA width and increased and decreased BFEs for Lefthand Creek. The SFHA resulting from the Lefthand Creek split flow was removed. 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)* Intersection of South Main Street and Quail Road Approximately 3,500 feet east of Intersection of South Main Street and Quail Road 4,954 None 4,940 None *National Geodetic Vertical Datum, rounded to nearest whole foot Under the above-mentioned Acts of 1968 and 1973, the Mitigation Directorate 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 Directorate 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 Directorate's determination to modify the BFEs may itself be changed.