Transcription of Chapter 4 Flood Risk Assessment
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Flood Risk Assessment 4-1 Chapter 4 Flood Risk Assessment Chapter Overview Any floodplain management program must be established on a sound technical and scientific basis in order to be effective, whether for Flood loss reduction or to manage natural resources, or both. For management purposes, nature of the Flood hazard and the degree of Flood risk for a specific site often has to be determined. This Chapter reviews commonly applied hydrological computational techniques for arriving at estimates of Flood flows in streams, needed to identify Flood hazard areas and Flood risk within those areas. The next Chapter reviews commonly applied techniques in delineating areas subject to flooding from floods of varying magnitudes.
Chapter 4 Flood Risk Assessment ... “10-year flood” 0.1 Calculated risk is basic to the occupancy and use of flood-prone areas. How much risk are we willing to assume? Decisions may be based on a certain flood event or risk. ... acceptance, and widespread application of a uniform, consistent and accurate technique for
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