A turbine in which water flows through in a parallel direction to the turbine shaft.

An adjustable gate used to regulate water flow through a dam. This gate type lowers to open and raises to close.

Basin-scale or basin-wide encompasses the activities that occur within the area of land drained by a river and its tributaries.

Double side-channel spillway.

A nearly horizontal step in the sloping profile of an embankment dam. Also a step in a rock or earth cut.

Division into two branches.

A type of roller-mounted vertical lift gate supported along either side by stainless steel roller chains.

A property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant.

An axial flow type of propeller turbine in which the turbine and generator are a sealed unit placed directly in the water stream.

A valve mechanism that regulates the flow of materials within large pipe diameters by the quarter-turn rotation of a disk. The butterfly valve is a quarter-turn […]

Reinforced concrete buttresses proportioned to transfer the water load to the foundation rock through individual buttress footings, using the weight of the impounding water and the […]

A channel or conduit through or around a dam that provides river flow and a route for fish to pass without going through the turbine units.