Black and white image of the Arizona-side generator room at Hoover Dam, as seen from the balcony at elevation 705. The 40,000 kilowatt ampere generator installed in unit 48 is visible in the background. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Night view during the construction of Boulder Dam, now called Hoover Dam, looking upstream from below the lower portals of the diversion tunnels. The canyon presents a spectacular sight at night, with its myriads of lights. Site Name: Hoover Dam (dam)
Working at Hoover (Boulder) Dam. The machinery shown include a water pump and power shovel. Note on back: "Not taken by W. A. Davis. That day the river came up and flooded tunnel on Arizona side. This shot shows pumpking the water out with a large sump pump. - James J. Hester, W. A. Davis' son-in-law, 1992."