Account of operations in relocation of U S highway 40 between Golden and Idaho Springs; particular reference to 1.09 mi stretch, at eastern end of project, which includes 860 ft tunnel; new road follows old narrow gage rail roadbed through Clear Creek Canyon; tunnel details, excavating, drilling and mucking operations; compressed air applications and equipment.
Colorado highway follows gold-rush rail route
Compressed Air Mag
Compressed Air Magazine ; 52 , n 8
1947
5 pages
Article (Journal)
English
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