Vol3_087_November 1935

"3553 View from the crest of Boulder Dam, looking downstream toward the Power House and lower portals of the Diversion Tunnels. November 26th, 1935. 3527 Boulder Dam and Power House, looking upstream from the Nevada side. Note the reservoir...

Vol3_028_March 1934

"2568 Union Pacific ""Train of Tomorrow"" on the Lomix Trestle, at the upstream face of Boulder Dam, where the concrete is transferred from Lomix trains to the Dam. March 9th, 1934. 2589 View taken from No. 2 Arizona derrick, showing Nevada...

Vol3_017_December 1933

"2455 Looking upstream through Black Canyon showing Boulder Dam under construction. December 15th, 1933. 2473 Close-up of Boulder Dam, looking downstream. December 27th, 1933. 2480 Nevada Spillway Weir. December 27th, 1933."

Vol3_015_December 1933

"2478 Arizona Intake Towers. December 27th, 1933. 2476 Nevada Intake Towers. December 27th, 1933. 2479 Arizona Intake Tower Derrick. December 27th, 1933."

Vol3_026_February 1934

"2541 General view of Nevada Intake Towers from Arizona side, showing Lomix trestle below. February 20th, 1934. 2540 General view of Arizona Intake Towers and Spillway from Nevada Himix trestle. February 20th, 1934."

Vol3_072_April 1935

"3238 Telephoto view of the Arizona Valve House. April 25th, 1935. 3237 Telephoto of the Nevada Valve House. Note forms for the roof beams being built. April 25th, 1935. 3234 A telephoto view from the Nevada side, showing some of the...

Vol3_054_October 1934

"2918 Upper portal trashrack for Diversion Tunnel No. 1, on the Nevada side. October 30th, 1934. 2916 Looking upstream in No. 2 Diversion Tunnel, showing the concrete pipe line from the pumpcrete gun to the upstream plug. October 30th,...

Vol3_021_January 1934

"2521 Forms in the upstream plug of Diversion Tunnel No. 2. January 27th, 1934. 2525 Placing concrete lining in Arizona upper penstock tunnel. January 27th, 1934. 2522 Forms in the upstream plug of Diversion Tunnel No. 3. January 27th,...

Vol3_046_August 1934

"2808 Nevada Powerhouse unit No. 8, from the Nevada retaining wall, showing turbine base and penstock tunnel. August 21st, 1934 2809 Looking upstream through Nevada Powerhouse, showing reinforcing steel and forms. August 21st, 1934 2829...

Vol3_006_July 1933

"2286 Hoover Dam July 26th, 1933. 2277 Looking upstream at the Arizona Spillway July 22nd, 1933. 2278 Looking upstream at the Nevada Spillway July 22nd, 1933."

Vol3_058_November 1934

"2934 Looking upstream in No. 1 plug, showing the gunited portions of the arch and raise into the Nevada Spillway. November 17th, 1934. 2935 Looking upstream into No. 3 plug and raise, showing plug concrete in place, cooling headers above and...

Vol3_077_May 1935

"3312 The Arizona Valve House, from the Nevada side. May 27th, 1935 3311 The Nevada Valve House, from the Arizona side. May 27th, 1935. 3277 Telephoto view, from the Arizona side, showing portion of the Nevada Powerhouse. May 27th,...

Vol3_068_March 1935

"3172 Telephoto view, looking downstream into the Arizona Spillway. Note the bridge and control house. March 26th, 1935. 3158 Telephoto view, looking downstream into the Nevada Spillway. Note the Spillway Control House beirg formed. March...

Vol3_033_April 1934

"2666 Looking upstream in Black Canyon, showing the downstream face of Boulder Dam. April 30th, 1934. 659 View showing installation of 100-ft. Drum Gates in the Arizona Spillway. April 28th, 1934. 2664 Looking upstream in No. 5 Penstock...

Vol3_034_April 1934

"2649 View of the Nevada Intake Towers, taken from the Arizona side. April 28th, 1934. 2648 View taken from Himix trestle, showing the Arizona Intake Towers, and Arizona Spillway in background. April 27th, 1934. "

Vol3_083_June 1935

"3335 Looking downstream, in the Nevada Valve House. June 24th, 1935. 3331 Looking upstream, on the Nevada side of Black Canyon, toward Boulder Dam, showing the road tunnel portal June 24th, 1935. 3318 View taken from the Valve House...

Vol3_000_June 1934

"2727 Downstream face of Boulder Dam, taken from Lookout Point. June 16th, 1934. 2743 Looking down the transition into No. 4 Raise. June 21st, 1934. "