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Bay Bridge's new eastern span taking shape
San Francisco Chronicle Johnny Calzascia (left) and Jim Benninghope of American Bridge Co. help construct the framework for the 525-foot steel suspension tower of the new Bay … |
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Bay Bridge's new eastern span taking shape
San Francisco Chronicle Johnny Calzascia (left) and Jim Benninghope of American Bridge Co. help construct the framework for the 525-foot steel suspension tower of the new Bay … |