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

  	CN-12-201-291NA Klamath Project - Oregon-California. Experimental Line in Unit 71. View of fiberglass membrane covered tubing being fed into hopper unit behind trenching machine. Installation methods were ...
  	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, 2010, 2007 CN-12-201-291NA Klamath Project - Oregon-California. Experimental Line in Unit 71. View of fiberglass membrane covered tubing being fed into hopper unit behind trenching machine. Installation methods were the same as used for the placement of non-sheathed tubing (no cinders were used). This pipe was placed as a test section in the north end of Unit #71; 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, 2010, 2007 CN-12-201-291NA Klamath Project - Oregon-California. Experimental Line in Unit 71. View of fiberglass membrane covered tubing being fed into hopper unit behind trenching machine. Installation methods were the same as used for the placement of non-sheathed tubing (no cinders were used). This pipe was placed as a test section in the north end of Unit #71; February 1973; Bureau of Reclamation photo by D. W. Stein Close

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

  	CN-12-201-292NA Klamath Project - Oregon-California. Experimental Line in Unit 71. View of pipe being fed into hopper unit pulled behind trenching machine. No cinder envelope was placed around this type ...
  	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, 2010, 2007 CN-12-201-292NA Klamath Project - Oregon-California. Experimental Line in Unit 71. View of pipe being fed into hopper unit pulled behind trenching machine. No cinder envelope was placed around this type of tubing; 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, 2010, 2007 CN-12-201-292NA Klamath Project - Oregon-California. Experimental Line in Unit 71. View of pipe being fed into hopper unit pulled behind trenching machine. No cinder envelope was placed around this type of tubing; February 1973; Bureau of Reclamation photo by D. W. Stein Close