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Excavating machinery
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Klamath Project (U.S.) -- History
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Tule Lake Region (California)
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21. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor
P12-200-2924NA Klamath Project - Oregon-California. View of trenching machine digging a cutoff wall; November 1972; Bureau of Reclamation photo by D. W. SteinCitation -
22. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor
P12-200-2925NA Klamath Project - Oregon-California. Hopper and digging chain are being lowered to grade at right angles to an open collector drain prior to the start of a new closed drain line; November ...Citation -
23. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor
P12-200-2926NA Klamath Project - Oregon-California. View of hopper unit and digging chain in position to start excavating a new closed drain line; November 1972; Bureau of Reclamation photo by D. W. ...Citation -
24. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor
P12-200-2931NA Klamath Project - Oregon-California. Rear-end view of hopper unit. Pipe is fed out of the round hole at the bottom and cinders are placed around the pipe as it is being extruded from the ...Citation -
25. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor
P12-200-2945NA Klamath Project - Oregon-California. Laser Beam Receiving Unit shown attached to trenching machine; December 1972; Bureau of Reclamation photo by D. W. SteinCitation -
26. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor
P12-200-2946NA Klamath Project - Oregon-California. View of Laser Beam Receiving Unit mounted on trencher. Note that the control panel for receiver unit is mounted to the left of controls for trencher; ...Citation -
27. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor
P12-200-2947NA Klamath Project - Oregon-California. View alongside of trencher showing horizontal alignment staffs. The operator sighted down the poles and was able to obtain very good alignment; December ...Citation