A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Baltimore and Ohio grade separation at Pittsburgh
Main tracks raised on an earth fill and steel viaduct for more than a mile. (2500 w.) (85744)
Baltimore and Ohio grade separation at Pittsburgh
Main tracks raised on an earth fill and steel viaduct for more than a mile. (2500 w.) (85744)
Baltimore and Ohio grade separation at Pittsburgh
Ry Age
1918
Ills.
Article (Journal)
English
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