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P12-201-4449 NA Klamath Project, OR-CA. Concrete repairs at Plant FF 2nd left front wall. Had excessive amount of rock pockets due to apparent faulty air powered vibrators. Cold joint due to E-Con Placer breakdown is the light colored portion midway up door blockout. Contractor is placed ± 5" lift of grout over cold joint, then continued with regular 1½" aggregate concrete. The joint came out better than had been expected; August 24, 1977; USBR photo by D.J. Kline

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