Vertical barrier screen studies at McNary Dam, 1994
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To reduce the descaling resulting from unstable flows in the gatewell, two new VBS systems were installed for testing at McNary Dam in 1994. Both systems were specifically designed to reduce gatewell turbulence when used with extended-length screens. Additional testing was planned to evaluate FGE using the new VBS systems in conjunction with ESBSs, and to compare alternative VBS surface preparations on fish condition. Contract no. E86910060
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2026-07-09
