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Caption: "San Francisco Bay Bridge Cable Anchorage. Nov. 1, 1935." View of a cable anchorage at one terminus of the San Francisco-Oakland Bay Bridge. 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 in 1936 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: 11/1/1935
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