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1871. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor
P-12-200-3076NA Klamath Project - Oregon-California. View of solid metal pipe and cutoff collar outlet unit in place on line #19-2; January 1975; USBR photo by D. W. SteinCitation -
1872. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor
P-12-200-3077NA Klamath Project - Oregon-California. View of trencher and 10 cubic yard end dump truck during installation of closed drain #19-1; January 1975; USBR photo by D. W. SteinCitation -
1873. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor
P-12-200-3078NA Klamath Project - Oregon-California. View of Mr. Patterson, Contractor, with Laser receiver rod determining height of the Laser command post, so cut grade can be determined to set automatic ...Citation -
1874. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor
P-12-200-3079NA Klamath Project - Oregon-California. View of Command post (Laser beam) set up in the field to control grade for closed drain installation; January 1975; USBR photo by D. W. SteinCitation -
1875. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor
P-12-200-3080NA Klamath Project - Oregon-California. View of Command post (Laser beam) set up in the field to control grade for closed drain installation; January 1975; USBR photo by D. W. SteinCitation -
1876. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor
P-12-200-3081NA Klamath Project - Oregon-California. View of open drain to be filled (left side). Note borrow area has been ripped due to approximately 0.5' of frost; January 1975; USBR photo by D. ...Citation -
1877. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor
P-12-200-3083NA Klamath Project - Oregon-California. View of small screening plant and loader, at Turkey Hill borrow pit, screening out the 3" oversize from the cinder material to be used as envelope ...Citation -
1878. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor
P-12-200-3084NA Klamath Project - Oregon-California. View of D-8 dozer excavating and stockpiling sub-grade material for road construction; February 1975; USBR photo by D. W. SteinCitation -
1879. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor
P-12-200-3085NA Klamath Project - Oregon-California. View of D-8 dozer excavating and stockpiling sub-grade material for road construction; February 1975; USBR photo by D. W. SteinCitation -
1880. [Image] Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor
P-12-200-3086NA Klamath Project - Oregon-California. View showing trenching operations in muddy conditions with a small John Deere dozer and Motor Patrol pulling 10 cubic yard end dump; February 1975; ...Citation