Laserfiche WebLink
<br />. <br /> <br />. <br /> <br />. <br /> <br />PREFACE <br /> <br />This Floodplain Information Report (FIR) is part of a program by the Colorado Water Conservation <br />Board (CWCB) to make approximate floodplain maps prepared by the Federal Emergency <br />Management Agency (FEMA) easier for local governments to use. This CWCB report provides <br />limited engineering information to support the approximate delineations on the FEMA maps, and it <br />provides floodplain management information to guide the local governments in the use of the maps. <br /> <br />The official floodplain information for Gilpin County is the Flood Hazard Boundary Map (FHBM), <br />dated June 10, 1977. The FHBM was prepared by FEMA, however it does not include any <br />engineering information to describe basis of the approximate floodplain mapping. The initial <br />purpose of this report, therefore, is to provide the County with limited supporting information for <br />the approximate floodplain delineations. This FIR includes a description of available hydrologic <br />information for major flooding sources within or adjacent to the County. In addition, the FIR gives <br />the County some basic information about floodplain management and it provides some alternatives <br />that could be considered in formulating and implementing floodplain management objectives. <br /> <br />A second function of this report is to assure that the FHBM meets the basic technical requirements <br />for designation and approval by the CWCB. Without the inclusion of basic engineering <br />information, the approximate floodplain delineations shown on the Gilpin County FHBM cannot <br />qualify for CWCB designation. Colorado statutes require that local governments obtain from the <br />CWCB the designation and approval of floodplain information for its use in regulatory purposes. <br />This FIR provides a means for the FHBM to meet that statutory objective. As new and more <br />detailed floodplain information becomes available, the approximate floodplain areas shown on the <br />FHBM panels will become superseded. The CWCB will designate and approve new information, <br />and rescind old information as appropriate. <br />