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CN-12-201-264NA Klamath Project - Oregon-California. View of DW-20 scraper hauling road base material from the USBR pit at the south end of Sump 1-A. Owing to their large capacity (25 c.y.) and resultant weight, the use of scrapers proved to be an unsuccessful method of moving dirt around in the sump area. In driving across previously filled areas, the loaded scrapers forced the road base material down into the ground; February 1973; Bureau of Reclamation photo by D. W. Stein

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