Sault Sainte Marie Canals
Quick Summary
The Sault Ste. Marie Canals, also known as the Soo Canals, are a vital part of North American navigation. Located on the Saint Marys River, they bypass the Sault Ste. Marie Rapids, which have a drop of over 20 feet. These canals are essential for shipping, as the rapids make the river impassable for vessels.
The system includes three canals: two in the U.S. and one in Canada. The U.S. side has four locks operated by the U.S. Army Corps of Engineers, which can raise or lower ships between Lake Superior and Lake Huron in minutes. The first set of locks opened in 1855, facilitating the development of the region by aiding migration and trade, especially after the discovery of mineral deposits in the Lake Superior area. The canals are a significant hub within the St. Lawrence Seaway.123
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