Shut-off valve to dam Stock Photo - Alamy
River valve damaged in 2009 could have been third way to release excess water | abc10.com
Floodgates open on experiment to flush out 500 MILLION TONS of sand and silt trapped in Grand Canyon | Glen canyon dam, Grand canyon, Glen canyon
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Dam, Reservoir and Hydropower Valves
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File:Kiso River Electric Power Museum Miura Dam wash-out valve (Ushio valve) 2.jpg - Wikimedia Commons
Winsor Dam Outlet Works, view looking down on 48" Dow valve after repairs, Quabbin Reservoir, Mass., Aug. 21, 1946 - Digital Commonwealth
Grand Coulee Dam Cultural History | Bureau of Reclamation
Dam, Reservoir and Hydropower Valves
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Control valves used for bottom outlets in dams and in hydro-power plants — UNITRACC - Underground Infrastructure Training and Competence Center
Dam, Reservoir and Hydropower Valves | Blackhall Engineering
Those Dam Valves and the Great Job They Do | Valve Magazine
The detail of an old old control valve on the dam with water flowing out Stock Photo - Alamy
Needle valve for dam base drainage renewal - AVK International
Quarry Marina - A 3-D rendering shows how water enters the... | Facebook
Butterfly Valves - Vortex Hydra Dams
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Dam, Reservoir and Hydropower Valves
