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<br />.. <br /> <br />" <br /> <br />STATE OF COLORADO <br /> <br />. <br /> <br />Colorado Water Conservation Board <br />Department of N amra! Resources <br />1313 Sherman Street, Room 721 <br />Denver, Colorado 80203 <br />Phone: (3Q3) 866-3441 <br />FAX: (303) 866-4474 <br />www.cwcb.state.co.us <br /> <br />II;:llCO"~", <br />~. <1 <br />~ <br />. <br />S' , 0 <br />~ ~ <br />'. . i <br />',t- . <br />"i'1931. <br /> <br />Bill Owens <br />Governor <br /> <br />MEMORANDUM <br /> <br />Russell George <br />Executive <br />Director <br /> <br />TO: Colorado Water Conservation Board Members <br /> <br />Rod Kuharich <br />Director <br /> <br />FROM: <br /> <br />Larry Lang, Chief, Flood Protection Section <br />Tom Browning, P.E., Flood Protection Section <br /> <br />Dan McAuliffe <br />Deputy Director <br /> <br />DATE: <br /> <br />August 31, 2004 <br /> <br />SUBJECT: Consent Agenda Items 2.a through 2.e <br />September 14-15, 2004 Board Meeting (Alamosa, Colorado) <br />Flood Protection Section - Floodplain Information to Be Designated <br /> <br />. SUMMARY <br /> <br />Consent Agenda Items 2.a through 2.e include five floodplain studies/maps proposed for CWCB <br />action. Love & Associates of Louisville, Colorado provided technical support for items 2.c through <br />2.e. Staff is requesting Board designation and approval for these items. A brief summary of the studies <br />is presented below. <br /> <br />CWCB staff performs technical reviews of floodplain information to assure the Board that the <br />information is in compliance with the requirements of the CWCB's "Rules and regulations for the <br />designation and approval of floodplains and of storm or floodwater runoff channels in Colorado," 2 <br />CCR 408-1. Furthermore, Sections 31-23-301 and 30-28-111, Colorado Revised Statutes, state that <br />legislative bodies of local jurisdictions may provide zoning regulations for land uses on or along any <br />storm or floodwater runoff channel or basin only after designation and approval by the CWCB. In <br />addition, Section 37-60-106(1)(c), Colorado Revised Statutes, directs the CWCB to designate and <br />approve storm or floodwater runoff channels or basins and to make such designations available to <br />legislative bodies of local jurisdictions. <br /> <br />. <br /> <br />The CWCB's designation and approvals greatly assist local communities in meeting the statutory <br />requirements of the State and the regulatory requirements of the National Flood Insurance Program. <br />Floodplain information is broadly categorized as detailed or approximate using the following <br />definitions. Detailed floodplain information means floodplain information prepared using topographic <br />base maps, hydrologic analyses, and hydraulic calculations to arrive at precise water surface profiles <br />and floodplain delineations suitable for makirig land use decisions under statutorily authorized zoning <br />powers. Approximate floodplain information means floodplain information prepared using a <br />