History of project; selection of location; outside diam. 31 ft.; distance between portals 4,750 ft.; total length 6150 ft.; it will have steel lining made up in segments each 9 ft. long, 30 in. wide and 8 in. deep. Before Am. Inst. Min. Engrs.
East Boston vehicular tunnel
Eng. Societies Boston -- Jl
1931
18 pages
4 Figs.
Article (Journal)
English
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Engineering Index Backfile | 1902