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  • 3940
    P12-200-2929NA Klamath Project - Oregon-California. View of small crawler tractor being used to backfill the open trench. Excavated earth, windrowed along the open trench, provides the material needed ...
    Citation
  • 3947
    P12-200-2936NA Klamath Project - Oregon-California. View of a workman using a whacker to obtain the required compaction at the outlet end of the drain line; December 1972; Bureau of Reclamation photo ...
    Citation
  • 4104
    P-12-200-3091NA Klamath Project - Oregon-California. General view of trenching and installing cinders and pipe on Closed Drain #53-2; February 1975; USBR photo by D. W. Stein
    Citation
  • 5217
    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