Text ( visual ) : unmediated The San Francisco-Oakland bay bridge / designed by and constructed under the supervision of the Department of public works of the state of California for the California toll bridge authority ; superstructure constructed by American bridge company, Pittsburgh, Pa., for Columbia steel company, San Francisco, Calif., general contractor. -- [Pittsburgh] : United States steel , 1936. -- 93 p. : ill. ; 28 cm. -- (BA88217645) ; https://ci.nii.ac.jp/ncid/BA88217645 Author Heading(s): United States Steel Corporation ; California. Dept. of Public Works ; California Toll Bridge Authority ; American Bridge Company ; Columbia Steel Company. -- Classification(s): LCC : TG25.S237 ; DC : 624.7. -- Subject Heading(s): LCSH : San Francisco-Oakland Bay Bridge (Oakland and San Francisco, Calif.) ; LCSH : Bridges -- Design and construction ; LCSH : Steel, Structural

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