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."
Low-level concrete mixing plant at the construction site of Boulder Dam, now called Hoover Dam. Picture taken using telephoto lens. Site Name: Hoover Dam (dam)