Outside of diversion tunnel No.2; shows side walls and jumbo inside. Notes with image: "The side wall forms were then put in there place and section after section side wall poured. Center is slip form. 1st pour on the side walls. Jumbo forms in place. Duck holes-doors used for sequential pours were on the jumbo. - W. A. Davis, 1992."
Virginia "Teddy" Fenton Photograph Collection on the Hoover Dam and Boulder City, Nevada
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Collection Number: PH-00022 Collection Name: Virginia "Teddy" Fenton Photograph Collection on the Hoover Dam and Boulder City, Nevada Box/Folder: Folder 04