Pg.58 #2993 Form work on the Nevada Valve House bench. Jan. 2nd, 1934. Pg.58 #2971 Telephoto view of Nevada Powerhouse units. Dec. 19th, 1934. Pg.58 #2995 Arizona Valve House from the center of the low catwalk. Jan. 2nd, 1935. Pg.58 #2973 Telephoto view of Arizona Powerhouse units. Dec. 19th, 1934.

Pg.63 #3062 Boulder Dam, looking upstream. Feb. 1st, 1935. Pg.63 #3028 Upstream face of Boulder Dam, looking downstream from the upstream cofferdam. Arizona Intake Towers on left, Nevada Intake Towers to the right. Jan. 28th, 1935. Pg.63 #3038 Looking across the downstream face of Boulder Dam, showing the utility towers and elevator shaft. Jan. 28th, 1935.

Pg.17 #2509 Close-up of Boulder Dam. View taken from the Arizona side, looking upstream. Jan. 24th, 1932. Pg.17 #2514 Close-up of slot at the Upstream Face of Boulder Dam. Jan. 24th, 1934 Pg.17 #2512 Downstream face of Boulder Dam, showing foundation for Central Wing of the Power House. Jan. 24th, 1934. Pg.17 #2510 Upstream face of Boulder Dam. Jan. 24th, 1934.

Pg.98 #3487 Boulder Dam and Powerhouse, looking upstream from lower cofferdam. Oct. 28, 1935. Pg.98 #3500 Boulder Dam Switchyard, showing excavation and construction. Note Boulder Dam Highway in background. Oct. 28, 1935. Pg.98 #3501 Looking upstream in No.2 downstream plug, showing water conduit being placed. Oct. 28, 1935. Pg.98 #3506 Looking upstream toward No.3 downstream plug. Note clean-up operations, getting ready for carpenters. Oct. 28, 1935.

Pg.96 #3549 Looking south toward Boulder Dam Switchyard, showing construction and excavation. Nov. 26, 1935. Pg.96 #3531 Looking upstream in lower No.3 Plug. Note one of pipe sections in place. Nov. 25, 1935. Pg.96 #3551 Looking upstream along Nevada approach to Boulder Dam. Note rubble wall being built and excavation for tower footings. Nov. 26, 1935. Pg.96 #3534 Looking upstream in lower No.2 plug, showing pipe in place. Nov 25, 1935.

Pg.5 #2336 150-Ton Government Cableway, completed and in operation. Aug. 19th, 1933. Pg.5 #2326 Blending Plant, recently placed in operation, at the Himix Concrete Plant. Aug. 19th, 1933. Pg.5 #2349 Hoover Dam, Cooling Tower and Refrigeration Plant, looking downstream. Sept. 14th, 1933. Pg.5 #2358 Nevada spillway weir, showing forms for downstream abutment. Sept. 15th, 1933.

Pg.33 #2667 - Pg.33 #2668 Panorama looking downstream in Black Canyon, taken from the Nevada side, showing the upstream face of Boulder Dam, Arizona and Nevada Spillways, Intake Towers, Cableways and general construction. May 12th, 1934. Pg.33 #2697 Arizona Spillway, looking upstream. May 25th, 1934. Pg.33 #2695 Trash rack at the upper portals of Diversion Tunnel No. 2. May 25th, 1934.