What is the maximum discharge capacity of the spillways, valves, and powerplant?
Five hundred and eighteen thousand ft3/s. Each spillway can discharge 200,000 ft3/s. If the spillways were operated at full capacity, the energy of the falling water would be about 25,000,000 horsepower. The flow over each spillway would be about the same as the flow over Niagara Falls, and the drop from the top of the raised spillway gates to river level would be approximately three times as great.
