Hydraulic and Scour Analysis for Muitiple Crossings of the Salt River, Phoenix, Arizona

by Dennis L. Richards, Li & Associates Inc., Tempe, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


Two new freeway systems currently being designed for the Phoenix metropolitan area, the East Papago Freeway and the Outer Loop Highway, will both cross the Salt River within a one mile reach. River mechanics and floodplain analyses were undertaken to establish hydraulic requirements for these bridge crossings, and to establish the location, configuration, and dimensions of bank stabilization measures along the Salt River. Interchange ramps located in the river adjacent to the Outer Loop crossing, and the presence of sand and gravel mining in the river channel complicated the hydraulic and scour considerations. This paper provides a summary of the analyses conducted to date along with preliminary findings.

Subject Headings: River bank stabilization | Scour | River crossing | Hydraulics | Highway bridges | Salts | Flood plains | Arizona | United States | Phoenix

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