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<br />. <br /> <br />. <br /> <br />. <br /> <br />A procedure for determining hydrology information for approximate floodplains of lakes, ponds, <br />and local drainages has not been established. The hydrologic methodology developed in the <br />Guidelines is appropriate for designation and approval of approximate floodplain information and <br />for use in simple floodplain analyses for development such as open space, agriculture, farm <br />bridges, pole barns, and individual single residential structures. The methodology is not <br />appropriate for development involving residential subdivisions greater than 50 lots or occurring <br />on sites greater than 5 acres, commercial construction, industrial construction, construction of <br />public transportation facilities, or construction of flood control facilities. <br /> <br />The Town of Hugo should regulate the approximate floodplains on a case-by-case basis subject <br />to a detailed hydrologic and hydraulic analysis performed by a professional engineer, in <br />accordance with the determinations of the Colorado Water Conservation Board regarding the <br />applicability of the Guidelines. <br /> <br />Hvdraulic Analvsis <br /> <br />The hydraulic analysis for the preparation of the FIRM likely consisted of interpretation of <br />USGS quadrangle mapping by HUD's engineering consultant, along with telephone discussions <br />with local officials. The telephone discussions addressed any historic flood problems that may <br />have occurred in Hugo. The FIA did perform and did not have the benefit of any detailed <br />hydrologic and hydraulic analyses for the preparation of the FIRM. Future hydraulic analyses <br />for determining 100-year water surface elevations for approximate floodplains may be computed <br />using FEMA's Quick-2 computer program, the Corps of Engineers' HEC-2 computer program, <br />or other acceptable hydraulic methods. <br />