U.S. Bureau of Reclamation Use of Risk Analysisby Neil F. Parrett, Bur of Reclamation Engineering &, Research Cent, Denver, CO, USA,
Abstract: The United States Bureau of Reclamation (USBR) has been using risk analysis techniques in assessments for management decisions. Before presenting USBR practice and experience, the paper focuses on experienced causes for dam failures. While risk analysis associated with large remote-occurring floods is discussed, actual failures of modern major dams have resulted from causes other than floods, usually 'piping,' and these usually result due to conditions not detected by designers before the failure.
Subject Headings: Risk management | Dam failures | Bureau of Reclamation | Failure analysis | Floods | Water resources | Resource management | Piping erosion | North America | United States
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