Restricted clearances on B. and O. necessitate half-through spans and chipping of masonry; crossing problems of three railroads and street; adopted design has special features; cross-section of one of bridges over Pennsylvania tunnel.
Working in close quarters
Ry. Eng. Maintenance
Railway Engineering and Maintenance ; 27 , n 5
1931
2 pages
3 Figs.
Aufsatz (Zeitschrift)
Englisch
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