An image of the Winged Figures of the Republic sculptures at the Hoover Dam on the day of the dam's dedication. Artist Oskar J. Hansen created the bronze sculptures.

Downstream view of Hoover Dam nearing its completion at Black Canyon.

The Las Vegas High School Rhythmettes posing on top of the Hoover Dam.

A group of unidentified men on a boat next to the Hoover Dam. The dam's intake towers stand behind the men.

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.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.10 #1016 Gantry crane used in pouring concrete in invert section of upper Diversion Tunnel No.3. Mar. 18, 1932. p.10 #1019 View showing method of pouring concrete in invert section of tunnel lining. Mar. 18, 1932. p.10 #1018 view of invert forms in upper Diversion Tunnel No.3 showing method of pouring slabs. Trimming jumbo for aligning gauge of tunnels in background. Mar. 18, 1932. p.10 #1020 First 40 foot slab of concrete poured in lining diversion tunnels. Mar. 18, 1932.