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<br /> <br />buildings may have been constructed since the last map update. <br />This and similar information may have to be plotted by local <br />cartographers to update the map. <br /> <br />Notes <br /> <br /> <br />@ <br /> <br />Topographic Map <br /> <br />Highway and other road system maps provide good informa- <br />tion on transportation systems and river crossings. State highway <br />maps can be used to route incoming resources and provide basic <br />information on water courses. County and local highway maps <br />_ _ _ ___ _ generally J)1'ovide greater detail than do state hi hwa ma s. Local <br />access routes to key facilities are often shown on these maps. This <br />information can be of great help when designating staging and <br />mobilization areas. As with topographic maps, it is important to be <br />sure that all map information is current and correct. <br /> <br />Levee and water control system maps are good tools for the <br />flood emergency planner. These maps specifically show the <br />placement of access routes, elevation markers, sewer outfalls, <br />conduit crossings, and railroad gaps for all levee structures. Dams, <br />flood gates, and other water control structures are also shown on <br />these maps. While maps in this category are frequently updated, <br />the emergency planner should still verify the chart information. <br /> <br />Sewer and utility system maps are critical resources during the <br />planning process. These underground networks can let flood <br />waters back flow and inundate areas behind flood works. During <br /> <br />Page 2 - 4 <br />