San Francisco : Architect and Engineer, Inc · leaf 299
roceeded in theusual manner, with loads placed by both der-ricks, one operating on the deck of the struc-ture from the abutments, and the other workingback from the crown. Throughout all erection operations a safetynet, similar to that used on the Golden GateBridge, was suspended below this… … Four sections of arch rib erected with one section canti-levered beyond first tie bock. Note: Rib section beingmoved out to derricit by means of traveler operating onnear arch rib. The bridge was built by a Joint Commissionof Canadian and American members who re-tained two American firms to design…
Architecture · Building
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