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• 391. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-253NA Klamath Project - Oregon-California. A standard 12-volt battery supplies power to the command post. Power consumption is quite low; December 1972; Bureau of Reclamation photo by D. W. ...
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1972, 2009, 2007 CN-12-201-253NA Klamath Project - Oregon-California. A standard 12-volt battery supplies power to the command post. Power consumption is quite low; December 1972; Bureau of Reclamation photo by D. W. Stein Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1972, 2009, 2007 CN-12-201-253NA Klamath Project - Oregon-California. A standard 12-volt battery supplies power to the command post. Power consumption is quite low; December 1972; Bureau of Reclamation photo by D. W. Stein Close

• 392. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No, 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-255NA Klamath Project - Oregon-California. View of Laser Beam receiver unit mounted on trencher; November 1972; Bureau of Reclamation photo by D. W. Stein
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No, 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein. D.W. Year: 1972, 2009, 2007 CN-12-201-255NA Klamath Project - Oregon-California. View of Laser Beam receiver unit mounted on trencher; November 1972; Bureau of Reclamation photo by D. W. Stein Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No, 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein. D.W. Year: 1972, 2009, 2007 CN-12-201-255NA Klamath Project - Oregon-California. View of Laser Beam receiver unit mounted on trencher; November 1972; Bureau of Reclamation photo by D. W. Stein Close

• 393. [Image] Closed Drain Construction - Tule Lake Sump 3 – Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-256NA Klamath Project - Oregon-California. View of laser control panel. Red, yellow and green lights indicate if the trencher is on grade. Facing the camera is A. H. Patterson, the contractor; ...
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction - Tule Lake Sump 3 – Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein. D.W. Year: 1972, 2009, 2007 CN-12-201-256NA Klamath Project - Oregon-California. View of laser control panel. Red, yellow and green lights indicate if the trencher is on grade. Facing the camera is A. H. Patterson, the contractor; November 1972; Bureau of Reclamation photo by D. W. Stein Title: Closed Drain Construction - Tule Lake Sump 3 – Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein. D.W. Year: 1972, 2009, 2007 CN-12-201-256NA Klamath Project - Oregon-California. View of laser control panel. Red, yellow and green lights indicate if the trencher is on grade. Facing the camera is A. H. Patterson, the contractor; November 1972; Bureau of Reclamation photo by D. W. Stein Close

• 394. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-254NA Klamath Project - Oregon-California. View of receiver unit mounted on top of the trencher. The location of the laser beam is sensed by this unit. This information is passed to an analog ...
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein. D.W. Year: 1973, 2009, 2007 CN-12-201-254NA Klamath Project - Oregon-California. View of receiver unit mounted on top of the trencher. The location of the laser beam is sensed by this unit. This information is passed to an analog computer which operates the hydraulic controls on the trencher. Thus, the receiver unit automatically maintains the digging unit at the desired grade; February 1973; Bureau of Reclamation photo by D. W. Stein Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein. D.W. Year: 1973, 2009, 2007 CN-12-201-254NA Klamath Project - Oregon-California. View of receiver unit mounted on top of the trencher. The location of the laser beam is sensed by this unit. This information is passed to an analog computer which operates the hydraulic controls on the trencher. Thus, the receiver unit automatically maintains the digging unit at the desired grade; February 1973; Bureau of Reclamation photo by D. W. Stein Close

• 395. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-257NA Klamath Project - Oregon-California. View of the Laser Beam control panel; November 1972; Bureau of Reclamation photo by D. W. Stein
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein. D.W. Year: 1972, 2009, 2007 CN-12-201-257NA Klamath Project - Oregon-California. View of the Laser Beam control panel; November 1972; Bureau of Reclamation photo by D. W. Stein Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein. D.W. Year: 1972, 2009, 2007 CN-12-201-257NA Klamath Project - Oregon-California. View of the Laser Beam control panel; November 1972; Bureau of Reclamation photo by D. W. Stein Close

• 396. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-259NA Klamath Project - Oregon-California. View looking north along road to be constructed. Motor patrol was preparing road bed to receive road base material. (Note alignment and grade stakes); ...
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1973, 2009, 2007 CN-12-201-259NA Klamath Project - Oregon-California. View looking north along road to be constructed. Motor patrol was preparing road bed to receive road base material. (Note alignment and grade stakes); February 1973; Bureau of Reclamation photo by D. W. Stein Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1973, 2009, 2007 CN-12-201-259NA Klamath Project - Oregon-California. View looking north along road to be constructed. Motor patrol was preparing road bed to receive road base material. (Note alignment and grade stakes); February 1973; Bureau of Reclamation photo by D. W. Stein Close

• 397. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-260NA Klamath Project - Oregon-California. View of road bed prior to placement of road base material; February 1973; Bureau of Reclamation photo by D. W. Stein
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1973, 2009, 2007 CN-12-201-260NA Klamath Project - Oregon-California. View of road bed prior to placement of road base material; February 1973; Bureau of Reclamation photo by D. W. Stein Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1973, 2009, 2007 CN-12-201-260NA Klamath Project - Oregon-California. View of road bed prior to placement of road base material; February 1973; Bureau of Reclamation photo by D. W. Stein Close

• 398. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-261NA Klamath Project - Oregon-California. View of road bed prior to placement of road base material. Note muddy condition caused by rain; February 1973; Bureau of Reclamation photo by D. W. ...
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1973, 2009, 2007 CN-12-201-261NA Klamath Project - Oregon-California. View of road bed prior to placement of road base material. Note muddy condition caused by rain; February 1973; Bureau of Reclamation photo by D. W. Stein Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1973, 2009, 2007 CN-12-201-261NA Klamath Project - Oregon-California. View of road bed prior to placement of road base material. Note muddy condition caused by rain; February 1973; Bureau of Reclamation photo by D. W. Stein Close

• 399. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-262NA Klamath Project - Oregon-California. View of a front-end loader loading a 10 c.y. dump truck with road base material from a pit owned by the Bureau of Reclamation. The pit is located in ...
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1973, 2009, 2007 CN-12-201-262NA Klamath Project - Oregon-California. View of a front-end loader loading a 10 c.y. dump truck with road base material from a pit owned by the Bureau of Reclamation. The pit is located in Section 15, Township and Range 5 East; March 1973; Bureau of Reclamation photo by D. W. Stein Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1973, 2009, 2007 CN-12-201-262NA Klamath Project - Oregon-California. View of a front-end loader loading a 10 c.y. dump truck with road base material from a pit owned by the Bureau of Reclamation. The pit is located in Section 15, Township and Range 5 East; March 1973; Bureau of Reclamation photo by D. W. Stein Close

• 400. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No, 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-258NA Klamath Project - Oregon-California. Another view of the Laser Beam control panel; November 1972; Bureau of Reclamation photo by D. W. Stein
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No, 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1972, 2009, 2007 CN-12-201-258NA Klamath Project - Oregon-California. Another view of the Laser Beam control panel; November 1972; Bureau of Reclamation photo by D. W. Stein Title: Closed Drain Construction - Tule Lake Sump 3 - Specs. No, 200C-842, Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1972, 2009, 2007 CN-12-201-258NA Klamath Project - Oregon-California. Another view of the Laser Beam control panel; November 1972; Bureau of Reclamation photo by D. W. Stein Close