The International bridge
crosses the St. Mary River and two
navigation canals at the point where Lake
Superior flows into Lake Huron. It is
2.76 miles long and carries a 28 foot wide
roadway. As the image above shows, the
crossing involves a number of elements:
- a double arch span on the US Soo Locks
(see below) ....
.... and a single arch spanning the Canadian
Lock.