p.2 #934 View of dedication ceremonies of Elks' Lodge, on Washington B-centennial. A flag pole was erected and ceremonies held at canyon rim near the damsite. Feb.22, 1932. p.2 #917 Jack hammer men scaling loose rock from canyon walls near site of Nevada spillway. Feb. 15, 1932.
p.3 #888 Lower portals of Diversion tunnels No.3 and 4 during flood. Feb. 10, 1932 p.3 #896 Bucyrus Erie 43-B gas-air shovel was the only piece of equipment caught by the flood. Feb. 10, 1932. p.3 #884 Looking across river at lower portal of Diversion Tunnel No.3. Feb 10, 1932 p.3 #897 Looking across river from Arizona side at upper portals of diversion tunnels No.1 and 2. Truck bridge in foreground has been partially washed out. Feb. 10, 1932.
p.4 #795 Portion of gravel pits on Arizona side of the river, 11 miles above damsite. Hills in background are across the river in Nevada, 5 miles away. Jan. 16, 1932. p.4 #902 Close-up of drag line loading 30 cub yard Western side-dump car. Plymouth gasoline locomotive switching. Feb. 10, 1932. p.4 #906 Marion electric drag line with 5 cubic yard capacity bucket, loading gravel. Feb. 10, 1932. p.4 #904 First train loaded with gravel leaving gravel pits for screening plant. Feb. 10, 1932.
p.5 #948 Foundations for the trash rack structure being installed in front of upper portal of Diversion Tunnel no.2. This is where the first pay concrete was poured. Mar. 7, 1932. p.5 #943 View of gravel plant, showing live storage of screened aggregate and sand in foreground. Storage pile for raw aggregate in background. Mar. 2, 1932. p.5 #951 Upper portals of Diversion Tunnels No.1 and 2. Note workmen scaling above portal of Diversion tunnel No.1. Mar. 7, 1932. p.5 #937 Night view of gravel plant, taken near first scalping screen, and looking in opposite direction than the view on left. Feb. 26, 1932.
p.6 #953 Looking out of upper portal of Diversion Tunnel No.2. Bucyrus Erie 43-B gas-air shovel reflected in pool of water. Mar. 7, 1932. p.6 #971 Flashlight close-up of workmen drilling on invert excavation. Mar. 7, 1932 p.6 #970 Flashlight photograph of drilling jumbo working on invert excavation at upper portal of Diversion Tunnel no.4 Mar. 8, 1932. p.6 #972 Wings extended for drilling fold back against the sides of drilling jumbo. Mar. 8, 1932.
p.7 #969 First-aid station and ambulance located at river camp above upper portals. Similar hospital is maintained at lower portals. Mar, 8, 1932. p.7 #918 Interior of one of many drill sharpening stations, showing forge and Ingersoll-Rand drill sharpener. Feb. 15, 1932. p.7 #974 Caterpillar 60 with bull-dozer in front and cow-dozer aft, used extensively for moving muck. Mar. 8, 1932. p.7 #946 Two levels of highway which will cross top of the dam. Note the rubble stone masonry retaining wall. High-level concrete mixing plant will be located in the draw in foreground. Mar. 2, 1932.
p.8 #989 Looking upstream at Black Canyon. Dam will be located just upstream from foot-bridge, at bottom of picture. Entrance to upper portals of diversion tunnels opposite the middle truck bridge. Mar. 12, 1932. p.8 #996 Looking downstream from same point as No.989. Lower portals of diversion tunnels are just below. This picture Presents graphic view of problem of muck disposal. Mar. 14, 1932.
p.9 #1011 Marion electric shovel with 3 1-2 cubic yard rock dipper loading into White 8 cubic yard truck, at Nevada spillway cut. Mar, 18, 1932. p.9 #1014 Mack truck with 14 cubic yard body being loaded at Nevada Spillway cut. Five similar trucks being used on this operation. Mar. 18, 1932. p.9 #1004 White truck dumping near site of Nevada spillway cut and extending road the for muck disposal. Mar. 16, 1932.