Flow Diversion in a Steep, Coarse-Bed Stream

by Edward F. Sing, U.S. Army Engineer District, Sacramento, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract: A case study is presented of the hydraulic design of a diversion structure in a high velocity, coarse bed streamcourse. Mill Creek, a tributary to the Upper Jordan River in the southern position of Salt Lake City, is a steep, high velocity stream which periodically floods its overbank areas. Major features of the Upper Jordan River Project include a diversion structure on Mill Creek to divert excess floodflows, a diversion conduit and a detention basin for detaining the excess floodflows. Design guidance for establishing the flow-split relationships for a diversion structure imposed into a high velocity, peaked and large bed material load stream is minimal. Available analytical tools for hydraulic and sediment transport analyses were used to develop a Preliminary Hydraulic Design of the structure. The Final Hydraulic Design will be based on performance verification using a physical hydraulic model of the structure.

Subject Headings: Hydraulic structures | Hydraulic design | Streamflow | Fluid velocity | Hydraulic roughness | Hydraulic models | River and stream beds | Floods | Developing countries | Rivers and streams | Jordan | Middle East | Utah | North America | Salt Lake City | United States

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