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• 41. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Co., Contractor

  	P-12-200-4011NA Klamath Project - Oregon-California. View of trench after pipe and cinders have been placed, #45-1 Closed Drain. Note water collecting in trench; March 1975; USBR photo by D. W. Ste...
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1975, 2009, 2006 P-12-200-4011NA Klamath Project - Oregon-California. View of trench after pipe and cinders have been placed, #45-1 Closed Drain. Note water collecting in trench; March 1975; USBR photo by D. W. Stein Title: Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1975, 2009, 2006 P-12-200-4011NA Klamath Project - Oregon-California. View of trench after pipe and cinders have been placed, #45-1 Closed Drain. Note water collecting in trench; March 1975; USBR photo by D. W. Stein Close

• 42. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Co., Contractor

  	P-12-200-4012NA Klamath Project - Oregon-California. View of back of hopper. Note water in trench, Closed Drain #56-1; March 1975; USBR photo by D. W. Stein
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1875, 2009, 2006 P-12-200-4012NA Klamath Project - Oregon-California. View of back of hopper. Note water in trench, Closed Drain #56-1; March 1975; USBR photo by D. W. Stein Title: Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, Stein, D.W. Year: 1875, 2009, 2006 P-12-200-4012NA Klamath Project - Oregon-California. View of back of hopper. Note water in trench, Closed Drain #56-1; March 1975; USBR photo by D. W. Stein Close

• 43. [Image] Closed Drain Construction in Tule Lake Sump 3 - Specs. No. 200C-821

  	CN-12-200-64A Klamath Project - Oregon-California. Looking west at equipment developed and used by Contractor to excavate and install plastic drainage tubing in one operation. Note that the trencher tows ...
  	Citation × Citation Citation Abstract Copy Title: Closed Drain Construction in Tule Lake Sump 3 - Specs. No. 200C-821 Author: United States. Bureau of Reclamation, Bryant, J.K. Year: 1971, 2010, 2007 CN-12-200-64A Klamath Project - Oregon-California. Looking west at equipment developed and used by Contractor to excavate and install plastic drainage tubing in one operation. Note that the trencher tows a hopper which contains and places the cinder envelope around the drainage tubing. Metal shields support the vertical walls of the open trench between the trencher and the hopper. The guide on the bottom of the hopper positions the drainage tubing as it is pulled into the trench. Contractor Don Johnson is shown operating the trenching machine; February 18, 1971; Bureau of Recl. photo by J.K. Bryant Title: Closed Drain Construction in Tule Lake Sump 3 - Specs. No. 200C-821 Author: United States. Bureau of Reclamation, Bryant, J.K. Year: 1971, 2010, 2007 CN-12-200-64A Klamath Project - Oregon-California. Looking west at equipment developed and used by Contractor to excavate and install plastic drainage tubing in one operation. Note that the trencher tows a hopper which contains and places the cinder envelope around the drainage tubing. Metal shields support the vertical walls of the open trench between the trencher and the hopper. The guide on the bottom of the hopper positions the drainage tubing as it is pulled into the trench. Contractor Don Johnson is shown operating the trenching machine; February 18, 1971; Bureau of Recl. photo by J.K. Bryant Close