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<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 Town of Walden is the Flood Insurance Rate Map (FIRM), <br />dated August 5, 1986. The FIRM 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 Town with limited supporting information for the <br />approximate floodplain delineations. This FIR includes a description of available hydrologic <br />information for major flooding sources within or adjacent to the Town. In addition, the FIR gives <br />the Town 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 FIRM 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 Walden FIRM cannot qualifY <br />for CWCB designation. Colorado statutes require that local governments obtain from the CWCB <br />the designation and approval of floodplain information for its use in regulatory purposes. This FIR <br />provides a means for the FIRM to meet that statutory objective. As new and more detailed <br />floodplain information becomes available, the approximate floodplain areas shown on the FIRM <br />panel will become superseded. The CWCB will designate and approve new information, and <br />rescind old information as appropriate. <br />