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91. [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

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


	CN-12-201-501NA Klamath Project - Oregon-California. View showing #12 Motor Patrol shaping and completing open drain that was filled.
	Citation Citation Citation Abstract Copy Title: Closed Drain Construction, Tule Lake, Sump 3 Specs. 200C-910 - Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, [Stein, D.W.] Year: 1974, 2010, 2007 CN-12-201-501NA Klamath Project - Oregon-California. View showing #12 Motor Patrol shaping and completing open drain that was filled. Title: Closed Drain Construction, Tule Lake, Sump 3 Specs. 200C-910 - Patterson Constr. Co., Contractor Author: United States. Bureau of Reclamation, [Stein, D.W.] Year: 1974, 2010, 2007 CN-12-201-501NA Klamath Project - Oregon-California. View showing #12 Motor Patrol shaping and completing open drain that was filled.