Certainty that bridge carrying main track over important river will becarried out in ice between April 27 and May 10 of each year is problem facing supervisor of bridges on Copper River and Northwestern in Alaska; operating difficulties.
Keeping a railway open above the Arctic circle
Ry. Eng. Maintenance
Railway Engineering and Maintenance ; 1 , n 6
1925
2 pages
3 Figs.
Article (Journal)
English
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