A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tunnel has length of 4230 ft, nearly semicircular cross section 28 ft wide, and is 19 ft high; cost of construction; operating specifications; accident experience; ventilation; fan operation under traffic conditions; carbon monoxide analyzers and recorders; lighting system; safety features. (20¢)
Tunnel has length of 4230 ft, nearly semicircular cross section 28 ft wide, and is 19 ft high; cost of construction; operating specifications; accident experience; ventilation; fan operation under traffic conditions; carbon monoxide analyzers and recorders; lighting system; safety features. (20¢)
Safety factors in construction and ventilation, Wawona vehicular tunnel, Yosemite National Park, Calif.
U S Bur Mines -- Tech Paper
Ash, S.H. (author)
1940
34 pages
Article (Journal)
English
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