About St. Clair Tunnel

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The St. Clair Tunnel is the name for two separate rail tunnels which were built under the St. Clair River between Sarnia, Ontario and Port Huron, Michigan. It was the first full-size subaqueous tunnel built in North America. (By full-size it is meant that it allowed a railroad to run through it.) It is a National Historic Landmark of the United States, and has been designated a civil engineering landmark by both US and Canadian engineering bodies.

Source From: Wikipedia
258, St Andrew Street, Sarnia, Lambton County, Ontario, Canada, N7T 1P4

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