Bureau of Reclamation Photographs of the Hoover Dam and Boulder City, Nevada
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Collection Number: PH-00071 Collection Name: Bureau of Reclamation Photographs of the Hoover Dam and Boulder City, Nevada Box/Folder: Folder 08 (Restrictions apply)
Black and white image showing the completed construction of Diversion Tunnel No. 4, one of four 50-foot diversion tunnels at Hoover Dam. Construction men can be seen at the base of the tunnel. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
A colored postcard portraying an artist's rendering of a Hoover (Boulder) Dam interior. Printed on the top border of the card: "Entrance to one of the four 56 foot diversion tunnels, Boulder Dam Project." Handwritten text on back of card.