Chicago : Engineering and Contracting Pub. Co. · leaf 626
[ngKontg d End View Fig. 3—Sliding Connection for Ends of Center Panel Top Chords of Arches. … The bridge was erected with ordinary der-ick cars, Fig. 5, with timber booms 70 ft.3ng, and of fifty tons capacity. Erectionrom both ends toward the middle requiredwo complete plants to carry on the work,wo cars were used at each end, one to un- finished in June, 1911, and the first train wentover…
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.