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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />1.0 INTRODUCTION <br /> <br />1.1 Purpose <br /> <br />This report was prepared to guide local officials in <br />planning the use and regulation of the floodplain areas such <br />that flood hazards and future flood damages are minimized. It <br />includes information on historical floods. existing factors <br />which influence the flood hazard. and the nature and extent of <br />probable future floods, <br /> <br />The report data consist of floodplain delineation maps <br />showing the approximate 100-year flood boundary. A supplement <br />to this report in the form of a technical addendum includes the <br />supporting engineering and hydrologic data which may also be <br />used in the location and design of roads. bridges and channel <br />modii ications. <br /> <br />1.2 Authorization <br /> <br />This report was prepared by the Colorado Water Conservation <br />Board at the request of Costilla County. <br /> <br />The Board's responsibility is... <br /> <br />". ..to devise and formulate methods. means and <br />plans for bringing about the greater utilization <br />of the waters of the state and the prevention of <br />flood damages therefrom and to designate and <br />approve storm or floodway runoff channels or <br />basins. and to make such designations available to <br />legislative bodies of cities and incorporated <br />towns; to county planning commissions; and to <br />boards of adjustment of cities; incorporated <br />towns; and counties of this state, .." <br /> <br />as stated in Section 37-60-106(1)(c) of the Colorado Revised <br />Statutes. <br /> <br />The legislative bodies of local jurisdictions <br />(counties/towns) may provide zoning regulations... <br /> <br />". ..to establish. regulate. restrict, and limit <br />such uses on or along any storm or floodwater <br />runoff channel or basin, as such storm or <br />floodwater runoff channel or basin has been <br />designated and approved by the Colorado Water <br />Conservation Board, in order to lessen or avoid <br />the hazards to persons and damage to property <br />resulting from the accumulation_of storm or <br />floodwaters. .." <br /> <br />-1- <br />