Four track miles of new 115-lb pressure rail installed by Great Northern Railroad in east half of Cascade tunnel, 98 mi east of Seattle, Wash; article explains how rail is welded, tested to detect possible flaws in new welds, coated with preservative and laid. (See also Ry Eng and Maintenance v 45 n 7 July 1949 p 667-9; Ry Age v 127 n 2 July 9 1949 p 92-5)
Longest tunnel gets welded rail
Eng News-Rec
Engineering News-Record ; 143 , n 6
1949
2 pages
Article (Journal)
English
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