Hydraulic Design for La Quinta Stormwater Project

by J. S. Wang, Bechtel Civil Inc, United States,
J. V. Reynolds, Bechtel Civil Inc, United States,
J. E. Welton, Bechtel Civil Inc, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract: An upstream detention basin was designed to trap debris and attenuate flows into Bear Creek Channel. The high velocity supercritical flow made a one side bank protection design for the Bear Creek Channel infeasible. A soil cement lined trapezoidal channel was selected to convey the storm runoff to the Oleander Reservoir without objectionable scour and with minimal possibility of overtopping. Design procedures were developed to consider all factors affecting protection thickness and embankment height for the soil-cement lined channel. Special design effort was performed to limit Bear Creek Channel outlet velocities.

Subject Headings: Hydraulic design | Soil cement | Fluid velocity | Linings | Channel flow | River bank stabilization | Thickness

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