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A platform for research: civil engineering, architecture and urbanism
Steel girders hung from concrete cantilevers
Portage Canal bridge in Washington consists of two lateral spans of 170 ft each and central span of 250 ft; latter consists of 140 ft of suspended steel and two 55-ft concrete cantilevers; total width of bridge 26 ft; central 140-ft length is carried by pair of steel box girders lifted to position by two floating rigs. See also Engineering Index 1952 p 116.
Steel girders hung from concrete cantilevers
Portage Canal bridge in Washington consists of two lateral spans of 170 ft each and central span of 250 ft; latter consists of 140 ft of suspended steel and two 55-ft concrete cantilevers; total width of bridge 26 ft; central 140-ft length is carried by pair of steel box girders lifted to position by two floating rigs. See also Engineering Index 1952 p 116.
Steel girders hung from concrete cantilevers
Civ Eng (NY)
Hadley, H.M. (author)
1952
4 pages
Article (Journal)
English
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