Laserfiche WebLink
<br />reaches in Custer County, which have drainage areas that fall within the regression criteria, meets <br />all of the requirements for approximate information listed under the Board's "Rules and <br />Regulations for the Designation and Approval of Floodplains and of Storm or Floodwater Runoff <br />Channels in Colorado" (2 CCR 408-1); and <br /> <br />WHEREAS, Custer County has been notified that the streams that have drainage areas <br />that fall outside the regression criteria, lakes, ponds, and local drainage areas may be designated <br />as approximate floodplain information without a procedure for estimating I DO-year peak flows, as <br />long as the local government understands and agrees that a detailed hydrologic and hydraulic <br />study is required prior to any floodplain development; and <br /> <br />WHEREAS, Colorado Water Conservation Board has determined that the hydrologic <br />methodology developed in the Guidelines for Determining 100-Year Flood Flowsfor <br />Approximate Floodplains is appropriate for designation and approval of approximate floodplain <br />information and for use in simple floodplain analyses for development such as open space, <br />agriculture, fann bridges, pole barns and individual single residential structures, but that the <br />methodology is not appropriate for development involving residential subdivisions greater than 50 <br />lots or occurring on sites greater than 5 acres, commercial construction, industrial construction, <br />construction of public transportation facilities or construction of flood control activities; and <br /> <br />NOW, THEREFORE, BE IT RESOLVED by the Colorado Water Conservation Board in <br />regular meeting assembled in Denver, ColoradO, this 13th day of March, 1996, that it does <br />hereby designate and approve as storm or floodwater runoff channels or basins those streams <br />within Custer County, as listed in Table 1, described by approximate floodplain information in <br />said new report dated February 8, 1996, that meet the criteria for the regression equation for <br />Arkansas River Basin Subregion Ark-6, Q,oo = 45.98 * (A)o.717 and Arkansas River Basin <br />Subregion Ark-3, Q,oo = 1,089.27 * (A)o.635 as set forth in the Guidelinesfor Determining 100- <br />Year Flood Flows for Approximate Floodplains, contingent upon the understanding that Custer <br />County will regulate the approximate floodplains on a case-by-case basis subject to a detailed <br />hydrologic and hydraulic analysis performed by a professional engineer, in accordance with the <br />determinations of the Colorado Water Conservation Board regarding the applicability of the <br />Guidelines for Determining 100-Year Flood FWwsfor Approximate Floodplains; and <br /> <br />BE IT FURTHER RESOLVED that the Board does hereby designate and approve as <br />storm or floodwater runoff channels or basins those floodplain areas within Custer County, as <br />listed in Table 1, described by approximate floodplain information in said new report dated <br />February 8, 1996, that do not meet the regression equation criteria for Arkansas River Basin <br />Subregion Ark-6 or Arkansas River Basin Subregion Ark-3, as set forth in the Guidelines for <br />Determining 100- Year Flood Flows for Approximate Floodplains, contingent upon the <br />understanding that Custer County will regulate those approximate floodplains on a case-by-case <br />basis subject to a detailed hydrologic and hydraulic analysis performed by a professional <br />engineer, in accordance with the determinations of the Colorado Water Conservation Board <br />regarding the applicability of the Guidelines for Determining 100- Year Flood Flows for <br /> <br />5 <br />