A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Methods used in construction of twin tunnel piercing Mount Baker ridge on route of approach to lake Washington Floating Bridge at Seattle, Wash, consisting of two-multicenter oval bores with distance of 60 ft from center to center between; each tunnel has 24 ft roadway, 3 ft sidewalks, 1466 ft long, with minimum vertical clearance of 14 1/2 ft along curb lines with maximum of 23 ft in center; pilot drifts; concrete lining.
Methods used in construction of twin tunnel piercing Mount Baker ridge on route of approach to lake Washington Floating Bridge at Seattle, Wash, consisting of two-multicenter oval bores with distance of 60 ft from center to center between; each tunnel has 24 ft roadway, 3 ft sidewalks, 1466 ft long, with minimum vertical clearance of 14 1/2 ft along curb lines with maximum of 23 ft in center; pilot drifts; concrete lining.
Twin bore tunnels
Pac Bldr Engr
Judd, H.V. (author)
1940
3 pages
Article (Journal)
English
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