A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tunneling Chugach range for Alaska railroad
West Construction Co is driving two major railroad tunnels between Passage Canal and Portage Junction; snowsheds protect workers at portals from slides and avalanches; tunnels are each 16 ft wide and 22 ft high from grade to top of arch which is formed on 8 ft radius.
Tunneling Chugach range for Alaska railroad
West Construction Co is driving two major railroad tunnels between Passage Canal and Portage Junction; snowsheds protect workers at portals from slides and avalanches; tunnels are each 16 ft wide and 22 ft high from grade to top of arch which is formed on 8 ft radius.
Tunneling Chugach range for Alaska railroad
Pac Builder Engr
1942
4 pages
Article (Journal)
English
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