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<br />FLOOD INSURANCE STUDY <br />CITY OF LITTLETON, ARAPAHOE AND DOUGLAS COUNTIES, COLORADO <br /> <br />1.0 INTRODUCTION <br /> <br />1.1 Purpose of Study <br /> <br />This Flood Insurance Study investigates the existence and severity <br />of flood hazards in the City of Littleton, Arapahoe and Douglas <br />Counties, Colorado, and aids in the administration of the National <br />Flood Insurance Act of 1968 and the Flood Disaster Protection Act <br />of 1973. This study has developed flood risk data for various <br />areas of the community that will be used to establish actuarial <br />flood insurance rates and assist the community in its efforts to <br />promote sound floodplain management. Minimum floodplain management <br />requirements for participation in the National Flood Insurance <br />Program (NFIP) are set forth in the Code of Federal Regulations at <br />44 CFR, 60.3. <br /> <br />This Flood Insurance Study revises and updates a previous Flood <br />Insurance Study for the City of Littleton dated June 1978. This <br />information will be used by the community to update existing <br />floodplain regulations as part of the Regular Phase of the NFIP. <br />The information will also be used by local and regional planners to <br />further promote sound land use and floodplain development. <br /> <br />In some states or communi ties, floodplain management cri teria or <br />regulations may exist that are more restrictive or comprehensive <br />than the minimum Federal requi rements. In such cases, the more <br />restrictive criteria take precedence and the State (or other <br />jurisdictional agency) will be able to explain them. <br /> <br />1.2 Authority and Acknowledgments <br /> <br />The sources of authority for this Flood Insurance Study are the <br />National Flood Insurance Act of 1968 and' the Flood Disaster <br />Protection Act of 1973. The hydrologic and hydraulic analyses for <br />the initial study were performed by Gingery Associates, Inc. (the <br />Study Contractor), for the Federal Emergency Management Agency <br />(FEMA) , under Contract No. H-3716 and were completed in June 1975. <br /> <br />The hydrologic and hydraulic analyses for portions of Lee Gulch and <br />Little's Creek were performed by J. F. Sata and Associates for FEMA <br />under Contract No. EMW-84-C-1631. This work was completed in <br />August 1985. <br /> <br />The South Platte River within Littleton was re-analyzed in two <br />independent phases. The fi rst phase, the hydraul ic analysis for <br />the portion of the South Platte River that is part of the U.S. Army <br />Corps of Engineers (COE) South Platte River Channel Improvement <br />Project, was developed by Wright Water Engineers, Inc., under <br />contract to the Urban Drainage and Flood Control District (UDFCD). <br />