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<br /> <br />flood planner pinpoint the predicted flood boundary. Flood <br />boundaries are shown based on 100 and 500-year flood events. <br />While FEMA floodway maps are an important tool for the flood <br />emergency planner, they are designed to be used for flood <br />insurance programs and do not necessarily show all of the areas <br />that may be subject to flooding. <br /> <br />Flood Insurance Rate Maps (FIRM's) are used to determine the <br />actuarial rates that apply to structures within the established zones <br />As with floodway maps, FIRM's do not necessarily show all areas <br />that may be subject to flooding. <br /> <br />There are a variety of specialty maps that can be of great help <br />to the flood emergency planner. Local Emergency Planning <br />Committee's (LEPC's) have maps that show the locations of <br />chemical producers and users in the community. There is always <br />the possibility of a hazardous material (HAZMAT) release during <br />a high water event. Special precautions may have to be taken to <br />protect chemical facilities and reduce the chances of a chemical <br />release. <br /> <br />Notes <br /> <br />The Medical Examiner or Coroner may have cemetery and <br />burial ground maps. Bodies may be disinterred by flood waters <br />and special precautions may be needed to protect these areas from <br />inundation or limit the movement of caskets and coffins.. <br /> <br />Park system maps may show limited access roads and trails <br />that run along recreational rivers. These maps are also likely to <br />show historic sites in the floodplain. In a high water emergency, <br />irreplaceable historic areas may require special flood protection. <br /> <br />--~-- -- - ---rIlotographs- can be of great help during the planning process. <br />Aerial photographs provide good visual detail on waterway <br />systems and adjoining land uses. Pictures of past floods and high <br />water events provide a visual reference showing inundation areas <br />and other information. Some flood planners use photographs to <br />show the locations of proposed expedient flood works. This can be <br />an effective field placement tool when detailed surveys are not <br />possible. <br /> <br />Other maps that may be useful include soil composition maps <br />and diagrams, railroad maps, and field drainage plots. These can <br />provide critical information on breaks in levee protection and back <br />flow points. The time spent in collecting this type of information <br />will be beneficial during the planning process and may prove <br />invaluable in the response phase. <br /> <br />Page 2 - 6 <br />