Illustrates and describes difficult work in Chicago in replacing old fixed structures by new movable structures, without interrupting railway traffic 2000 w. (No. 16332)
Erection of an eight-track rolling lift bridge
Eng Rec
1910
Article (Journal)
English
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Erection costs for a double-track railway bridge
Engineering Index Backfile | 1913
|An eight-track overhead city bridge
Engineering Index Backfile | 1910