Laserfiche WebLink
<br />) <br /> <br />) <br /> <br />The level of accuracy obtainable in the floodplain delineation is <br /> <br /> <br />dependent on the accuracy of the flood profiles and the topographic <br /> <br /> <br />information. The degree of accuracy required in delineation cannot go <br /> <br /> <br />beyond what is available as part of the input data. In most instances, it <br /> <br />would be a waste of resources to attempt to define the areas flooded by <br /> <br />discharge to elevations closer than the nearest foot. <br /> <br />STEP FIVE: INVENTORY EXISTING FLOODPlAIN <br /> <br />This section illustrates the general procedures for inventory and <br /> <br />appraisal of the floodplain. The inventory is to assess existing <br /> <br /> <br />conditions and to estimate the potential of effects of any future growth, <br /> <br /> <br />The procedures described here are applicable to residential, commercial, <br /> <br /> <br />industrial, and public buildings, as well as transpor,tation facilities, <br />and utilities, <br />Definition, Inventorying is the surveying of floodplain properties <br /> <br />to determine expected damage. Three types of information are needed for <br /> <br />all property to be evaluated, These include: susceptibility <br />classification, value, and elevation, <br />Use, The purpose of making an existing floodplain inventory is to <br />learn what structures and other property are in the floodplain, the the <br />value of structures and associated contents structures are, and at what <br /> <br /> <br />elevation they are susceptible to flooding, This information is then used <br /> <br /> <br />as a basic step in the computation of flood damages and flood damage <br /> <br /> <br />reduction benefits, Structures include residential, commercial, <br /> <br />industrial, and public, Physical damage estimates should also be made for <br /> <br />V-21 <br />