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Dams -- Maintenance and repair
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Drilling and boring
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Irrigation projects
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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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3. [Image] Core drilling of Gerber Dam
CN-12-201-589NA Klamath Project - Oregon-California. View of drilling platform from stream bed; October 1969; USBR photo by C. D. LawrenceCitation -
4. [Image] Core drilling of Gerber Dam
CN-12-201-590NA Klamath Project - Oregon-California. View of drilling platform from stream bed; October 1969; USBR photo by C. D. LawrenceCitation -
5. [Image] Core drilling of Gerber Dam
CN-12-201-593NA Klamath Project - Oregon-California. View of dragline, compressor and drilling platform; October 1969; USBR photo by C. D. LawrenceCitation -
6. [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 -
7. [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 -
8. [Image] Core drilling of Gerber Dam
CN-12-201-588NA Klamath Project - Oregon-California. View of Bucyrus-Erie 22-B dragline used to move drilling platform from place to place on downstream face of dam. Dragline was borrowed from Fish and ...Citation -
9. [Image] Core drilling of Gerber Dam
CN-12-201-591NA Klamath Project - Oregon-California. View of bottom of drilling platform. Note the knee braces used to support the platform; October 1969; USBR photo by C. D. LawrenceCitation -
10. [Image] Core drilling of Gerber Dam
CN-12-201-592NA Klamath Project - Oregon-California. View of Bucyrus-Erie 22=B dragline used to lift drilling platform; October 1969; USBR photo by C. D. LawrenceCitation