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<br />. <br /> <br />. <br /> <br />. <br /> <br />program, Flowmaster, or other acceptable hydraulic methods. Channel and floodplain cross- <br />sections may be obtained from detailed topographic mapping or from field surveys. Cross-sections <br />obtained from USGS quadrangle maps is not advised. <br /> <br />Floodolain Maooin!!: <br />The existing Flood Insurance Rate Maps for Clear Creek County do not accurately depict areas <br />subject to 1 DO-year flooding due to approximate technical methods on which the floodplains are <br />based. The maps also do not show sufficient detail for County officials, engineers, developers, and <br />land owners to make floodplain determinations with any certainty. New detailed floodplain <br />mapping is currently being developed by FEMA for certain stream reaches in the county. <br /> <br />FLOODPLAIN MANAGEMENT <br /> <br />Local Ordinance Requirements <br />Communities which manage their floodplains in Colorado do so most often through the local <br />regulatory process. This requires a community to adopt an ordinance or regulation which sets forth <br />the performance standards by which development will occur in identified flood hazard areas. <br />Nationwide and in Colorado, regulations are enforced within the area of the 1 DO-year floodplain, <br /> <br />The basic requirement of these regulations is that new development and significant improvement of <br />existing development cannot occur in the 100-year floodplain without a floodplain development <br />permit being obtained. Obtaining such a permit requires compliance with engineering standards. In <br />communities like Clear Creek County that have approximate floodplain information, the <br />engineering standards have been more general. Structures must be built with materials and <br />techniques that "minimize flood damages". For communities that have detailed floodplain <br />information, more specific regulations would apply. The use of engineering techniques presented <br />in this report can help the County to better regulate its approximate floodplain areas, <br /> <br />Flood Insurance <br />Flood insurance is made available to owners and occupants of floodprone property through the <br />federal government's National Flood Insurance Program (NFIP). The federally backed flood <br />insurance is available to anyone in any community that participates in the NFIP. At the time of this <br />publication, Clear Creek County was participating in the NFIP, and officially joined the regular <br />program of the NFIP on March 11, 1980. Communities become participants by adopting floodplain <br />regulations, adopting an NFIP map (if one exists) and agreeing to cooperate with the federal <br />government in the local implementation of the NFIP. Property owners and occupants can then <br />contact an insurance agent familiar with the NFIP (perhaps their own agent) and purchase insurance <br />through that agent, much like they would purchase homeowner's insurance. Brochures and other <br />information regarding the National Flood Insurance Program can be obtained by calling the <br />Regional Office of the Federal Emergency Management Agency (FEMA) in Denver at (303) 235- <br />4830. <br /> <br />4 <br />