Dam-Break Study for Large Floodplain Area - A Case Studyby J. S. Wang, Bechtel Corp, San Francisco, United States,
R. Baysinger, Bechtel Corp, San Francisco, United States,
S. L. Hui, Bechtel Corp, San Francisco, United States,
Abstract: In simulating a dam break flood in a large floodplain, the maximum flood level is sensitive to the off-channel storage volume used in the channel routing. An incorrect estimate of the off-channel storage volume could lead to an over-estimate of the maximum flood stage and an under-estimate of the floodwave travel time at the downstream locations. A separate overland channel routing algorithm was developed to predict more accurately the flood propagation in a large floodplain area.
Subject Headings: Flood routing | Dam failures | Case studies | Water storage | Travel time | Channel flow | Rivers and streams
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