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CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE CITY AND COUNTY OF BROOMFIELD, COLORADO, UNDER THE NATIONAL FLOOD INSURANCE PROGRAM On September 30, 1997, the Federal Emergency Management Agency identified Special F]ood Hazard Areas (SFHAs) in the City and County of Broomfield, Colorado, through issuance of a Flood Insurance Rate Map (FIRM). The Federal Insurance and Mitigation Administration 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 ofthe Flood Disaster Protection Act of 1973 (Public Law 93-234) and are in accordance with the Nationa] 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 channel modifications along Airport Creek associated with the Broomfield Corporate Center development, Phase 1, from Main Street (formerly known as Pierce Street) to approximately 710 feet upstream. This has resulted in a revised delineation of the regulatory floodway, increases and decreases in SFHA width, and increased and decreased BFEs for Airport Creek. 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 110 feet upstream of Main Street Approximately 680 feet upstream of Main Street 5,333 5,335 5,334 5,336 *Nationa] Geodetic Vertica] Datum, rounded to nearest whole foot Under the above-mentioned Acts of 1968 and 1973, the Federal Insurance and Mitigation Administration must develop criteria for floodplain management. To participate in the National F]ood 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 Federa] Insurance and Mitigation Administration 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 Federal Insurance and Mitigation Administration'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 Karen Stuart Mayor, City and County ofBroomfie]d One Des Combes Drive Broomfield, CO 80020