CN-12-201-287 Klamath Project - Oregon-California. Experimental Line in Unit 71. Close-up view of corrugated plastic tubing with porous membrane around it. One thousand[...]

CN-12-201-288NA Klamath Project - Oregon-California. Experimental Line in Unit 71. View showing two lengths of fiberglass enclosed corrugated tubing being spliced. The s[...]

CN-12-201-296NA Klamath Project - Oregon-California. Experimental Line in Unit 71. Connection to the steel outlet pipe was made in the same manner as with the unsheathed[...]

CN-12-201-294NA Klamath Project - Oregon-California. Experimental Line in Unit 71. View of sheathed tubing in trench prior to backfilling; February 1973; Bureau of Reclam[...]

CN-12-201-295NA Klamath Project - Oregon-California. Experimental Line in Unit 71. View of pipe in trench prior to backfilling. Note man’s foot on pipe in upper part of p[...]

CN-12-201-225NA Klamath Project - Oregon-California. View of drainage tubing strung out in the field before it was placed in the ground by the trencher; December 1972; B[...]

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 [...]

CN-12-201-290NA Klamath Project - Oregon-California. View of fiberglass enclosed tubing stretched out along proposed drain line. Note Laser Beam command post in the back[...]

CN-12-201-227NA Klamath Project - Oregon-California. Workman is coupling two sections of 4-inch tubing together, A 4-inch collar is taped around the tubing, making a ver[...]

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 env[...]