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Caption: "Union Pacific Bridge -- Portland," c. 1912. Built in 1912, this through-truss, double-deck, vertical lift bridge crosses the Willamette River in Portland, Oregon.
Date: 1912
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Caption: "Cabrilla [sic] Bridge." Built for the 1915 Panama-California Exposition, the Cabrillo Bridge continues to provide access between Balboa Park and the uptown area of San Diego.
Date: 1915