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Long Lake Dam Model Studies

by M. Hanif Chaudhry, Washington State Univ, Pullman, WA, USA,
Kim Zentz, Washington State Univ, Pullman, WA, USA,



Document Type: Proceeding Paper

Part of: Water Power '87

Abstract:

The Long Lake spillway was designed at the turn of the century as a standard ogee section with an upstream batter for a maximum head of 179 feet (55 m). It did not include any energy dissipator. Consequently, extensive erosion and scour have occurred at the toe of the spillway. Investigations were conducted on a 1:50-scale hydraulic model to develop an economical alternative to alleviate the erosion problem. This paper describes these studies.

Subject Headings: Hydraulic models | Spillways | Hydraulic design | Erosion | Dams | Scour | Lakes

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