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• 22021. [Image] Closed Drain Construction - Tule Lake Sump 3 – Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-245NA Klamath Project - Oregon-California. Overall view of drain that has been filled and accepted as complete; 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-12-201-245NA Klamath Project - Oregon-California. Overall view of drain that has been filled and accepted as complete; 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-12-201-245NA Klamath Project - Oregon-California. Overall view of drain that has been filled and accepted as complete; November 1972; Bureau of Reclamation photo by D. W. Stein Close

• 22022. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-246NA Klamath Project - Oregon-California. View showing location of Laser Beam command post in the middle of the field. The tripod, which supports the command post, was set up and leveled adjacent ...
  	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-12-201-246NA Klamath Project - Oregon-California. View showing location of Laser Beam command post in the middle of the field. The tripod, which supports the command post, was set up and leveled adjacent to the drain to be constructed. This unit was always set up on the left side of the drain line (looking upstream) and it was situated about 50 ft. from line; 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-12-201-246NA Klamath Project - Oregon-California. View showing location of Laser Beam command post in the middle of the field. The tripod, which supports the command post, was set up and leveled adjacent to the drain to be constructed. This unit was always set up on the left side of the drain line (looking upstream) and it was situated about 50 ft. from line; November 1972; Bureau of Reclamation photo by D. W. Stein Close

• 22023. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-247NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post. Note the drainage tubing laid out in the background prior to construction; December 1972; Bureau of Reclamation ...
  	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-12-201-247NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post. Note the drainage tubing laid out in the background prior to construction; 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-12-201-247NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post. Note the drainage tubing laid out in the background prior to construction; December 1972; Bureau of Reclamation photo by D. W. Stein Close

• 22024. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-248NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post; December 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-12-201-248NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post; 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-12-201-248NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post; December 1972; Bureau of Reclamation photo by D. W. Stein Close

• 22025. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-249NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post showing adjustment screws. The head is leveled in the same manner that a theodolite is leveled. The crank ...
  	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-12-201-249NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post showing adjustment screws. The head is leveled in the same manner that a theodolite is leveled. The crank is used to raise or lower the control head to a predetermined heighth (sic) above the grade line; 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-12-201-249NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post showing adjustment screws. The head is leveled in the same manner that a theodolite is leveled. The crank is used to raise or lower the control head to a predetermined heighth (sic) above the grade line; December 1972; Bureau of Reclamation photo by D. W. Stein Close

• 22026. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-250NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post shoving leveling screws; December 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-12-201-250NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post shoving leveling screws; 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-12-201-250NA Klamath Project - Oregon-California. Close-up view of Laser Beam command post shoving leveling screws; December 1972; Bureau of Reclamation photo by D. W. Stein Close

• 22027. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-251NA Klamath Project - Oregon-California. View of Laser Beam command post controls. Note the two bubbles used for leveling the apparatus. The dial is to set the beam on the desired slope; December ...
  	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-12-201-251NA Klamath Project - Oregon-California. View of Laser Beam command post controls. Note the two bubbles used for leveling the apparatus. The dial is to set the beam on the desired slope; 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-12-201-251NA Klamath Project - Oregon-California. View of Laser Beam command post controls. Note the two bubbles used for leveling the apparatus. The dial is to set the beam on the desired slope; December 1972; Bureau of Reclamation photo by D. W. Stein Close

• 22028. [Image] Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor

  	CN-12-201-252NA. Klamath Project - Oregon-California. View of the top of the command post. The small cap at the top revolves like a beacon and emits a laser beam the width of a pencil. This establishes ...
  	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-12-201-252NA. Klamath Project - Oregon-California. View of the top of the command post. The small cap at the top revolves like a beacon and emits a laser beam the width of a pencil. This establishes a plane of light across the top of the field which parallels the desired grade of the closed draine (sic) line. The distance from the invert grade to the laser plane of light is constant along the whole length of the drain line; 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-12-201-252NA. Klamath Project - Oregon-California. View of the top of the command post. The small cap at the top revolves like a beacon and emits a laser beam the width of a pencil. This establishes a plane of light across the top of the field which parallels the desired grade of the closed draine (sic) line. The distance from the invert grade to the laser plane of light is constant along the whole length of the drain line; December 1972; Bureau of Reclamation photo by D. W. Stein Close

• 22029. [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

• 22030. [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