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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 of a 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 XIII 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 the effects of the construction of box culverts under South Fordham Street, placement of fill upstream of South Fordham Street, and channelization between South Fordham Street and North 89th Street along Dry Creek No, I, and has resulted in an increase and decrease in SFHA width and increased and decreased BFEs for Dry Creek No, 1. 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)' Approximately 500 feet downstream of South Fordham Street Approximately 150 feet downstream of North 89th Street 4,998 5,006 4,996 5,005 '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. Any person having knowledge or wishing to comment on these changes should immediately notify: The Honorable Leona Stoecker Mayor, City of Longmont 350 Kimbark Street Longmont, Colorado 80501