Hoover Dam Turbine Runner in Bicentennial Park

From the placque next to the runner: "This cast steel turbine runner (water wheel), which is 14.2 feet in diameter and weighs over 32 tons, powered the N-7 generator at Hoover Dam Power Plant from 1944 to 1982. The function of the turbine runner is to9 convert the force of falling water delivered through the penstock pipes, to rotating energy which is then utilized by the generator in producing hydroelectric energy."