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Construction consists of approximately 30,500 ft of 16-ft, 1400 ft of 20-ft, and 200 ft of 12-ft horse-shoe-shaped concrete lined tunnel in rock, 80 ft of 16-ft and 246 ft of 8-ft similar tunnel in clay, seven shafts, 14 to 20 ft in diam, and by-pass structure; proposed method of making necessary connections between new and existing tunnels.
Construction consists of approximately 30,500 ft of 16-ft, 1400 ft of 20-ft, and 200 ft of 12-ft horse-shoe-shaped concrete lined tunnel in rock, 80 ft of 16-ft and 246 ft of 8-ft similar tunnel in clay, seven shafts, 14 to 20 ft in diam, and by-pass structure; proposed method of making necessary connections between new and existing tunnels.
Tunnel construction at Chicago
Am Water Works Assn -- J
Salter, G.S. (author)
1956
11 pages
Article (Journal)
English
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