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<br /> <br />Information must be gathered before the start of the planning <br />process. The success of the planning process will partly depend on <br />the accuracy and amount of information obtained and readily used <br />by local planners. While the information gathering process may <br />look tedious, it is easy to obtain most of the information. <br /> <br />Notes <br /> <br />The next section will look at the sources and types of informa- <br />tion that are normally required for the development of flood fight <br />plans. A list should be made of the required information and <br />possible sources. However, do not limit your search to a restricted <br />set of data. Agencies and organizations may volunteer additional <br />sources of information that can be valuable during the planning <br />process. While the final list of information types and sources will <br />vary from community to community, the samples given will <br />provide a starting point for local efforts. A detailed sample <br />resource checklist can be found in the appendix. <br /> <br />An extensive collection of maps will be used and cross- <br />referenced during the planning process. The basic map types <br />include: <br /> <br />-.j Topographic Charts (Various Scales) <br />-.j Highway and Minor Road Systems <br />-.j Levee and Water Control Systems <br />-.j Sewer and Utility Systems <br />-.j Zoning and Plat Grids <br />-.j Historic Flood Plots <br />-.j FEMA Flood Insurance Maps <br />-.j Specialty Maps and Photographs <br /> <br />Topographic (Topo's) maps are important tools for the flood <br />emergency planner. They are available from the USGS and private <br />map vendors throughout the United States. Topographic maps <br />provide accurate information on river channels and land elevations <br />which are critical when determining flood risks and planning a <br />flood fight. <br /> <br />While land elevations remain fairly constant, other information <br />found on the topographic map may change. Since topographic <br />maps are updated approximately once every 10 years, the planner <br />should not rely on variable data from an older map. For example, <br />new subdivisions and industrial parks may extend the city limits <br />beyond what is shown on the map. Furthermore, new roads and <br /> <br />Page 2 - 3 <br />