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A platform for research: civil engineering, architecture and urbanism
Concrete arch replaces viaduct at Portland, Ore.
Design and construction adapted to requirements that new bridge be built without interrupting railway service; vibration in new structure prevented during concreting.
Concrete arch replaces viaduct at Portland, Ore.
Design and construction adapted to requirements that new bridge be built without interrupting railway service; vibration in new structure prevented during concreting.
Concrete arch replaces viaduct at Portland, Ore.
Eng. News-Rec
1926
4 pages
7 Figs.
Article (Journal)
English
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