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.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.