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Dams
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Author
Rosten, T.J.
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Subject
Drilling and boring
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Subject
Gerber Dam (Oregon)
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Subject
Klamath Project (U.S.) -- History
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1. [Image] View of high sealer drilling anchor bolt holes with jack hammer in downstream face of Gerber Dam
CN-12-201-581NA Klamath Project - Oregon-California. Anchor bolts were embedded in holes to secure drilling platform to face of dam as part of core drilling operations; September 1969; USBR photo by T. ...Citation -
2. [Image] View of right abutment of Gerber Dam
CN-12-201-584NA Klamath Project - Oregon-California. Note tripod used by drill crew in obtaining core samples of foundation material. Samples were obtained as part of Safety of Dams review; September ...Citation -
CN-12-201-582NA Klamath Project - Oregon-California; September 1969; USBR photo by T. J. Rosten
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CN-12-201-583NA Klamath Project - Oregon-California; September 1969; USBR photo by T. J. Rosten
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