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FLOOD INSURANCE STUDY EL PASO COUNTY, COLORADO AND INCORPORATED AREAS 1.0 INTRODUCTION 1.1 Purpose of Study . This Flood Insurance Study revises and updates information on the existence and severity of flood hazards in the geographic area of EI Paso County, including the Cities of Colorado Springs, Fountain, and Manitou Springs, the Towns of Calhan, Green Mountain Falls, Monument, Palmer Lake, and Ramah, and the unincorporated areas of EI Paso County (referred to collectively herein as EI Paso County), and aids in the administration of the National Flood Insurance Act of 1968 and the Flood Disaster Protection Act of 1973. This study has developed flood risk data for various areas of the community that will be used to establish actuarial flood insurance rates and to assist the community in its efforts to promote sound floodplain management. Minimum floodplain management requirements for participation in the National Flood Insurance Program (NF[P) are set forth in the Code of Federal Regulations at 44 CFR, 60.3. Please note that the Town of Green Mountain Falls is located in EI Paso and Teller Counties, but is included in its entirety in the EI Paso County Flood Insurance Study. In some states or communities, floodplain management criteria or regulations may exist that are more restrictive or comprehensive than the minimum Federal requirements. [n such cases, the more restrictive criteria take precedence and the State (or other jurisdictional agency) will be able to explain them. 1.2 Authority and Acknowledgments The sources of authority for this Flood Insurance Study are the National Flood Insurance Act of 1968 and the Flood Disaster Protection Act of 1973. For the Cities of Colorado Springs and Fountain, the Town of Green Mountain Falls, and the unincorporated areas of EI Paso County, the hydrologic and hydraulic analyses for the initial studies were performed by the U.S. Army Corps of Engineers (USACE), Albuquerque District, under Interagency Agreement No. H-7-76, Project Order No. 12, Amendments No. 2 and 6, and by Camp Dresser and McKee, [nc., under Contract No. EMW-C-0046, for the Federal Emergency Management Agency (FEMA). These studies were completed in July 1982. The hydrologic and hydraulic analyses for Dry Creek and its tributaries were performed by KKBNA, Inc. This work was completed in January 1984. For the City of Manitou Springs, the hydrologic and hydraulic analyses for the initial study were performed by PRC Engineering Consultants, [nc., for FEMA, under Contract No. H- 4724. lbis study was completed in September 1979. A detailed study was performed along Beckers Lane Tributary to revise the floodplain due to channel improvements. The hydrologic and hydraulic analyses for this revision were performed independently by Greenhorne & O'Mara, [nc., and were completed in January 1989 (Reference I). All channel improvements for this revision were completed by December 1989. For the Town of Monument, the hydrologic and hydraulic analyses used to prepare the initial study were performed by the Colorado Water Conservation Board (CWCB). That work was completed in June 1986.