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C H Bull Co. helps Caltrans - Caltrans District 3: Raise 80 Penryn Overcrossing Lift




A Caltrans District 3 video explanation of the hydraulic jacking system used to raise the vertical clearance of the overcrossings in the Raise80 project, which includes lifting nine bridges in southern Placer County to the federal standard of 16 feet, 6 inches.