Construction details of single-track tunnel 7.78 miles long through Cascade range between Berne and Scenic, Wash.; outstanding feature of construction is rapid progress made, as world's record for advancing has been broken in four consecutive months. See also Ry. Rev., vol. 79, no. 26, Dec. 25, 1926, pp. 922-929, 11 figs. See also Eng. News-Rec., vol. 99, no. 6, Aug. 11, 1927, pp. 224-225, 3 figs.
Great Northern builds longest railway tunnel in America
Ry. Age
Railway Age ; 99 , n 6
1926
2 pages
3 Figs.
Aufsatz (Zeitschrift)
Englisch
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