Page:Final Report - The Columbia River Interstate Bridge.pdf/15



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PAGE Columbia River Interstate Bridge _ _ _ _ _ _. _ _ . _ . _ _ . _ _ _ . _ . . _ _ _ - Frontispiece Vancouver End of Columbia River Bridge. . _ _ _ . _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ . _ _ _ --12 Oregon Slough Bridge as seen from Hayden Island __________________ __‘12 Columbia River Bridge as seen from Vancouver _ _ _ _ _ _ _. _ _ . . . . _ _ . _ . _ -_19 Drawing, Floor Construction of Truss Spans _______________________ _-23 Lift Span Operating Machinery Assembled in.Shop _________________ __24 Columbia River Bridge as seen from Vancouver ____________________ --26 Drawing, Details of Typical Pier _________________________________ --28 Construction of Union Avenue Approach Embankment _. . _ . _ _ _, _ . . _ __30 Pile Driver Equipment used in Building Piers _ _. _ _ _ _ _ _ . _ _ . _ _ _ _ _ _ _ _ __34 Manufacturing the Steel. Trusses Assembled at Bridge Shop __________ _-36 Building the Piers, Removing Cofferdam ___________________________ __37 Erecting Through Truss Spans on Shore _ _. . _ _ _ _ ., _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ __39 Truss Spans on Launching Ways Ready for Moving _________________ ..40 Moving Completed Span Across River on Barges. _ . _ _ . _ . _ . _ _ _ . _ _ . _ . _ _-41 Embankment Construction, Bulkheads and Methods of Deposit _ _ _ _ _. . _-43 Completed Embankment along Union Avenue Approach _ _ _ _ _ _ _ _. _ _ _ _ __44 Opening Day Columbia River Interstate Bridge _ _. _ _ _ . _ _, _ _ _ _ _ _ _ _ _ _ _ -_(il

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