A brief account of the tunnel proposed under the St. Clair River at Port Huron. Total length, 5,280 feet, of which 2,310 feet will be under the river. Clear internal diameter, 20 feet.
The St. Clair River tunnel
RR Gaz
1887
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1890
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