A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Utah. Tunneling for Zion park scenic highway
Extensive development of motor highways in southwestern Utah; recent program of improvements to shorten distances between important points; new road includes about two miles of tunneling through cliffs; details of approach work; tunnel headings started from side galleries driven from face of cliff, with working platforms on scaffolds or suspended from summit of cliff.
Utah. Tunneling for Zion park scenic highway
Extensive development of motor highways in southwestern Utah; recent program of improvements to shorten distances between important points; new road includes about two miles of tunneling through cliffs; details of approach work; tunnel headings started from side galleries driven from face of cliff, with working platforms on scaffolds or suspended from summit of cliff.
Utah. Tunneling for Zion park scenic highway
Mine Quarry
Welcker, T.J. (author)
Mine and Quarry ; 14
1928
9 pages
9 Figs.
Article (Journal)
English
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