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, ~. CHANGES ARE MADE IN DElERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE CITY OF COLOUPO SPRINGS, EL PASO COUNTY, COLORADO, UNDER THE NATIONAL FLOOD INSURANCE PROGRAM On March 17, 1997, the Federal Emergency Management Agency identified Special Flood Hazard Areas (SFHAs) in the City of Colorado Springs, EI Paso 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. ~ Hydrologic and hydraulic analyses were performed to incorporate construction of Pine Creek and North Pine Creek drainage facilities associated with Pine Creek Residential Subdivision Filings II, 12, and 13 and revision to the floodways along Pine Creek and North Pine Creek. The project extends along Pine Creek from approximately 850 feet downstream of the outfall of the storm drain system to approximately 7,800 feet upstream of Briargate Parkway and along North Pine Creek from approximately 200 feet upstream to approximately 3,500 feet upstream of the outfall. The project has resulted in revised delineations of the regulatory floodways, increases and decreases in SFHA widths, and increased and decreased BFEs for Pine Creek and North Pine Creek. The base flood is contained within the storm drain system along North Pine Creek from just upstream to approximately 1,800 feet upstream of the outfall and along Pine Creek from just upstream of the outfall to approximately 1,200 feet upstream of Briargate Parkway. The table below indicates existing and modified BFEs for selected locations along the affected lengths ofthe flooding source( s) cited above. Location Existing BFE (feet)* Modified BFE (feet)* North Pine Creek: Approximately 500 feet upstream of the outfall of the storm drain 6,760 None Pine Creek: Approximately 200 feet downstream of the outfall of the storm drain At Briargate Parkway Approximately 4,600 feet upstream of Briar gate Parkway Approximately 7,800 feet upstream of Briar gate Parkway 6,734 6,765 6,876 None 6,732 None 6,873 6,956 *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.