Revised Hydraulic Design of the Rio Hondo Flood Control Channelby Scott E. Stonestreet, (M.ASCE), US Army Corps of Engineers, Los Angeles, United States,
Michael E. Mulvihill, (M.ASCE), US Army Corps of Engineers, Los Angeles, United States,
John E. Hite, Jr., (M.ASCE), US Army Corps of Engineers, Los Angeles, United States,
Abstract: The US Army Engineer District, Los Angeles has completed a major review study of the Los Angeles County Drainage Area (US Army, 1992) and has determined that the existing flood control system capacity is inadequate to contain higher revised flow rates. A one dimensional numerical model was used in this review study and indicated that in order to pass the increased discharge, construction of parapet walls on the top of the existing channel walls or levees would be required and several bridges would need to be raised or modified. In order to eliminate uncertainties associated with the one dimensional aspects of the numerical model, a physical model was constructed and tested at the US Army Waterways Experiment Station in Vicksburg, MS. This paper discusses the model results, the innovative designs which will sufficiently increase the hydraulic capacity of the existing bridges, and suggestions for future research.
Subject Headings: Hydraulic design | Hydraulic models | Numerical models | Structural models | Floods | Hydrologic models | Physical models | Control systems | Model tests | North America | United States | California | Los Angeles | Mississippi
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