Description of methods employed in deep ditching on Pennsylvania Railroad between New York and Philadelphia, Pa. Before Metropolitan Maintenance of Way Club, NY.
Pennsylvania drains roadbed by turning cuts into fills
Ry Eng Maintenance
Railway Engineering and Maintenance ; 38 , n 4
1942
3 pages
Aufsatz (Zeitschrift)
Englisch
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Cotton belt drains instability out of its roadbed
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