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<br />Mapping Plan for Colorado <br /> <br />10.0 Implementing the Plan <br /> <br />10.1 Proposed Approach To Addressing Mapping Needs <br /> <br />To address the prioritized mapping needs, the Colorado Water Conservation Board evaluated the map <br />production options that are available. For the purposes of this Plan, the options have been categorized as <br />Levell Map Upgrades and Level 2 Map Upgrades. A brief description of each is provided below. <br /> <br />. Level 1 Map Upgrades: Level 1 Map Upgrades are improvements to existing flood maps that are <br />not based on the development of new detailed flood hazard information. These improvements <br />may include converting the flood maps to a GIS-based digital format, incorporating an improved <br />base map (such as digital orthophoto quarter quadrangles), redelineating existing floodplain <br />boundaries based on updated topographic data, refinement or addition of Zone A, and/or <br />incorporating existing flood hazard data developed by Federal, State, or local agencies for <br />purposes other than the FEMA Flood Hazard Mapping Program. <br /> <br />· Level 2 Map Upgrades: Level 2 Map Upgrades are improvements involving the development of <br />new detailed flood hazard information. These upgrades typically require updated topographic <br />data, structure and cross-section surveys, hydrologic and hydraulic engineering analyses, and <br />floodway and floodplain boundary delineation. <br /> <br />The costs associated with Level 2 Map Upgrades typically will be significantly higher than the costs <br />associated with Level 1 Map Upgrades. <br /> <br />The Colorado Water Conservation Board then evaluated various scenarios to determine the best <br />combination of the above activities to achieve the GPRA performance measures. Based on this <br />evaluation, the Colorado Water Conservation Board is submitting the highest priority recommendations <br />shown in Table 10.1 to FEMA. A complete, county-by-county listing is provided in Appendix C. <br /> <br />The CWCB identified 16 counties out of the 64 counties in Colorado in the "highest priority group", <br />using its prioritization methodology. Those counties are included in Table 10.1. Some communities that <br />do not currently have any FEMA map panels, did not provide any needs information to the CWCB. For <br />those communities, no needs are taken into account in Table 10.1. If the interest of those communities <br />changes in the future, CWCB will update Table 10.1 accordingly. <br /> <br />12/26/2002 <br /> <br />Page 33 of 38 <br />