1988•Hydraulic EngineeringRequires access

Scour Downstream of the Straight Drop Spillway

Charles E. Rice

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.

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Available abstract

Key concepts: Tailwater, Spillway, Weir, Geology, Structural basin, Geotechnical engineering, Crest, Geomorphology