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Caption: "Opening Day, Nov. 12, 1936, San Francisco, Oakland Bay Bridge, Before the Traffic Started." View of the San Francisco terminus of the San Francisco-Oakland Bay Bridge. Built between May 1933 and its opening on November 12, 1936, the Bay Bridge's design combined three different types of bridge-building technology over the five miles it covers between San Francisco and Oakland: a suspension span, a cantilevered span, and a tunnel. At the time of its completion the bridge was the longest steel structure on the globe. It also featured the deepest bridge pier ever built, and the world's largest bore tunnel.
Date: 11/12/1936