FLOOD10967 - Laserfiche WebLink

Home Browse Search

CHANGES ARE MADE IN DETERMINA nONS OF BASE FLOOD ELEV A nONS FOR THE CITY AND COUNTY OF DENVER AND THE UNINCORPORATED AREAS OF ARAPAHOE COUNTY, COLORADO, UNDER THE NA nONAL FLOOD INSURANCE PROGRAM On September 7, 1998, and August 16, 1995, respectively, the Federal Emergency Management Agency identified Special Flood Hazard Areas (SFHAs) in the City and County of Denver and in the unincorporated areas of Arapahoe County, Colorado, through issuance of Flood Insurance Rate Maps (FIRMs). 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 these conununities is appropriate. The modified Base Flood Elevations (BFEs) revise the FIRMs for the communities. 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, Pubhc Law 90-448), 42 U.S.c. 4001-4128, and 44 CFR Part 65. A hydraulic analysis was performed for Cherry Creek from approximately 1,430 feet downstream to approximately 570 feet upstream of the Highline Canal crossing to incorporate channel modifications associated with construction of Drop Structures 22 and 23. This has resulted in increases and decreases in SFHA width and increased and decreased BFEs for Cherry 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)* 1.2 Approximately 1,200 feet downstream of Highline Canal crossing 2Approximately 200 feet downstream of Highline Canal crossing 2 At Highline Canal crossing 2 Approximately 230 feet upstream of Highline Canal crossing 5,453 5,452 5,456 5,458 5,455 5,461 5,460 5,462 *National Geodetic Vertical Datum, rounded to nearest whole foot IUnincorporated areas of Arapahoe County 2City and County of Denver Under the above-mentioned Acts of 1968 and 1973, the Federal Insurance and Mitigation Administration must develop criteria for t100dplain management. To participate in the National Flood Insurance Program (NFIP), the community must use the modified BFEs to administer the floodplain management mea~,ures 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 building5 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 Federal 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 paliies 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.