Replacement of Allegheny River crossing at Pittsburgh, Pa., necessitated by traffic conditions. Improvement involved truss and girder spans over total length of 2122 ft. across river to an abutment forming end of new structure.
Baltimore and Ohio builds new main line bridge
Ry. Age
Railway Age ; 68 , n 22
1920
3 pages
Aufsatz (Zeitschrift)
Englisch
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