Pg.94 #3476 Looking upstream in Nevada Valve House. Note installation of needle valves and gates. Sept. 27, 1935. Pg.94 #3478 Looking upstream, on roof of Nevada Valve House. Steel rails in place, ready for pouring concrete slab. Sept. 27, 1935. Pg.94 #3473 Looking into Arizona Spillway Raise. Jumbo is being used for grouting, back of concrete lining. Sept. 27, 1935.

Pg.19 #2521 Forms in the upstream plug of Diversion Tunnel No. 2. Jan 27th, 1934. Pg.19 #2522 Forms in the upstream plug of Diversion Tunnel No. 3. Jan 27th, 1934. Pg.19 #2525 Placing concrete lining in Arizona upper penstock tunnel. Jan. 27th, 1934. Pg.19 #2524 Placing concrete lining in Arizona upper penstock tunnel. January 27th, 1934.

Pg.62 #3025 Nevada Power House, from the downstream cofferdam. Jan. 28th, 1935. Pg.62 #3059 Diversion Tunnel No.1 Trashrack and counterweight assembly just prior to the diverting of the Colorado river into the tunnel. Feb. 1st, 1935. Pg.62 #3026 Arizona Power House, from the downstream cofferdam. Jan. 28th, 1935. Pg.62 #3054 Diversion of the Colorado River into Diversion Tunnel No.1 as the Gate on Diversion Tunnel No.4 is being lowered. Feb. 1st,1935.

Pg.70 #3152 Looking upstream toward the Nevada Intake Towers, showing the Intake Bridge girders in place. March 25, 1935. Pg.70 #3177 Looking upstream toward the Nevada Powerhouse. Mar. 26, 1935. Pg.70 #3181 Looking upstream toward the No.1 upstream plug, showing approximately 7,100 second feet of water being discharged. March 26, 1935. Pg.70 #3178 Looking upstream toward the Arizona Powerhouse. Mar. 26, 1935.

Pg.85 #3355 Looking downstream toward the Arizona Spillway, showing highway bridge and Arizona Highway. Jul. 25, 1935. Pg.85 #3381 Switchyard, Rigging Loft, and surround area. Jul. 26, 1935. Pg.85 #3379 Looking downstream toward No.1 raise and Nevada Spillway. Note drainage flume in foreground. Jul. 26, 1935. Pg.85 #3383 Looking into No.3 downstream plug, from the Nevada plug adit. Note forms for the first pour being built. Jul. 26, 1935.

Pg.90 #3417 View of Arizona side of lower portals clean-up. Aug. 26, 1935. Pg.90 #3397 Nevada construction adits, Valve House and plug adit portal. Note absence of upstream end of lower portal road tunnel. Aug. 21, 1935. Pg.90 #3412 View of Nevada side of lower portals clean-up. Aug. 26, 1935. Pg.90 #3431 View taken from downstream Nevada Plug adit, looking toward No.2 downstream plug. Aug. 27, 1935.