Bank Protection Toe-Downs and Local Pier Scour

by Dennis L. Richards, (M.ASCE),
Christopher J. Pauley, (M.ASCE),

Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water


The zone-of-influence for pier scour may impact bank protection toe-down depths. Countermeasures were required at a site along the Salt River in Phoenix, Arizona when the alignment of a proposed structure was modified. The realignment of the State Route 153 crossing of a channellzed reach of the Salt River resulted in total pier scour that was estimated to undermine recently constructed soil-cement bank protection. Several a1tei were investigated with a slurry trenched cutoff wall constructed.

Subject Headings: River bank stabilization | Scour | Piers | Soil cement | Diaphragm walls | Salts | Rivers and streams | Arizona | United States | Phoenix

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