Archival objects in this container: Swing shift workers leaving Dormitory No. 2 in Boulder City, Nevada, 1931 November 07 People at Look-Out Point viewing construction, 1932 April 01 Night view looking upstream from below the lower portals of the diversion tunnels, 1932 April 08 Looking downstream from a point below the lower portals of the diversion tunnels, with muck disposal road show on both sides of the river, 1932 January 19 Government and Six Companies officials inspecting the Nevada spillway: Norman S. Gallison, H. J. Lawler, Walker R. Young, Charles A. Shea, E. O. Wattis, Elwood Mead, Frank T. Crave, R. F. Walter, and W. A. Bechtel, 1932 February 09 Sunset on the Colorado River looking downstream from the railroad bridge, 1932 February 10 Marion electric drag line with five cubic yard capacity bucket loading gravel, 1932 February 10 Main batching and mixer control station low-level concrete mixing plant, 1932 February 17 Night view of the gravel plant taken near the first scalping screen, 1932 February 26 Gravel plant live storage of screened aggregate and sand, 1932 March 02 Looking upstream at the low-level mixing plant with four cubic yard agitators mounted on white trucks, 1932 March 08 Machine shop and warehouse group of buildings surrounded by material storage yards, 1932 March 11 Interior of Six Companies machine shop showing equipment to handle heavy machine work, 1932 March 11 Looking upstream at Black Canyon and foot bridges, 1932 March 12 Marion shovel and trucks opening an adit, 1932 March 18 First 40-foot slab of concrete poured in lining of the diversion tunnels, 1932 March 18 Day shift workers entering transports at the upper portals for their return to Boulder City, 1932 March 18 30 cubic yard side dump car from the gravel pits dumping into depressed track hopper at the gravel plant, 1932 March 19 Sand classifier in the gravel plant, 1932 March 19 Water clarifier tank at the gravel plant, 1932 March 19 Rake type sand classifier producing finished sand for storage, 1932 March 19 Concrete lining in the diversion tunnels, two cubic yard buckets suspended from the Gantry crane, 1932 March 23 Four cubic yard agitators dumping into two cubic yard buckets, 1932 March 23 Gantry crane transporting four cubic yard Rex motor mixers in pouring tunnel lining, 1932 March 23 Blast in scaling down the canyon walls for the construction of the intake towers, taken from the river-level looking downstream, 1932 March 28 Load More
