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<br />. <br /> <br />. <br /> <br />. <br /> <br />the detenninations of the Colorado Water Conservation Board regarding the applicability of the <br />Guidelines. <br /> <br />Hvdraulic Analvsis <br /> <br />The hydraulic analysis for the preparation of the Pueblo County PIS was accomplished using both <br />detailed and approximate engineering methods. For the streams in the County that have detailed <br />floodplain information, the hydraulic analyses were performed using standard engineering <br />procedures for detennining lOO-year water surface elevations. For the streams that have <br />approximate floodplain information, the hydraulic analyses likely consisted of interpretation of <br />USGS quadrangle mapping, along with telephone discussions with local officials. The telephone <br />discussions addressed any historic flood problems that may have occurred in Pueblo County. Future <br />hydraulic analyses for detennining IOO-year water surface elevations for approximate floodplains <br />may be computed using FEMA's Quick-2 computer program, the Corps of Engineers' HEC-2 <br />computer program, or other acceptable hydraulic methods. <br /> <br />FLOODPLAIN MANAGEMENT <br /> <br />Local Ordinance Requirements <br /> <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 IOO-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 lOO-year floodplain without a floodplain development <br />pennit being obtained. Obtaining such a pennit requires compliance with engineering standards. In <br />communities like Pueblo County that have both detailed and approximate floodplain information, <br />the engineering standards are both well defined and general, respectively. For the general <br />standards relating to approximate floodplains, structures must be built with materials and <br />techniques that "minimize flood damages". For the areas with detailed floodplain information, the <br />standards require that residential buildings must be elevated above the IOO-year elevation and that <br />non-residential buildings must be either elevated or floodproofed. Other structures or projects (i.e. <br />bridges, culverts or fill) must be constructed in a way that minimizes the potential increase in flood <br />elevations they may cause. <br /> <br />Flood Insurance <br /> <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 NFIP insurance is available <br />to anyone in any community that participates in the NFIP. At the time of this publication, Pueblo <br />