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.)
This page contains content from the copyrighted Wikipedia article "St. Clair Tunnel"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.
