Scour Downstream of the Straight Drop Spillway

by Charles E. Rice, USDA-ARS, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract: Tests made to determine the effect of high tailwater and long duration flows on scour downstream of the straight drop spillway stilling basin are presented in this paper. Results are presented on the performance with the standard design basin, the basin with a nappe-shaped weir crest, and basins with rounded abutments at the entrance to the stilling basin.

Subject Headings: Stilling basins | Spillways | Scour | Rivers and streams | Hydraulic design | Tailwater | Flow duration

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