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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 />INTRODUCTION <br /> <br />Purpose and Scope <br /> <br />The Floodplain Information Report provides supporting documentation for floodplain <br />designation within the Town of Manassa. For CWCB designation purposes, the flood- <br />prone areas contained herein replace those floodplains shown in the Town of Manassa <br />FIRM, dated February 1986. The 1986 FIRM does not reflect flood peaks estimated <br />using recently updated regression equations and probable flood depths associated with <br />the updated flood peaks. This document provides engineering information to fulfill the <br />requirements of CWCB designation. <br /> <br />The document includes: <br /> <br />1. Authorization for the report and its purpose and scope; <br /> <br />2. Study area description including information on the community, the watershed, any <br />known flooding history/flooding problems, previous studies and projects, and <br />community response to the CWCB designation and approval process; <br /> <br />3, Description of hydrologic and hydraulic information; and <br /> <br />4. Floodplain management program information. <br /> <br />Authorization <br /> <br />The CWCB has statutory responsibilities related to the designation and approval of <br />floodwater runoff channels or basins as follows: <br /> <br />. .. "to devise and formulate methods, means, and plans for bringing about the <br />greater utilization of the waters of the state and the prevention of flood damages <br />therefrom, and to designate and approve storm or floodwater runoff channels or <br />basins, and to make such designations available to legislative bodies of cities and <br />incorporated Counties, to County planning commissions, and to boards of <br />adjustment of cities, incorporated Counties, and counties of this state"... Section <br />37-60-106(1)(c) of the Colorado Revised Statutes (CRS). <br /> <br />A CWCB designation and approval of current floodplain information is needed for the <br />Town of Manassa, Colorado. CWCB has prepared the Floodplain Information Report to <br />update the identification of the Town's flood-prone areas so the community can better <br />implement its floodplain management program. <br /> <br />3 <br />