U.s. Weather Bureau Building
Navigational structures in Sault Ste. Marie, Michigan. Built 1855. Added to the National Register in 1966, and a National Historic Landmark.




What it is
The Soo Locks are a set of parallel locks, operated and maintained by the United States Army Corps of Engineers, Detroit District, that enable ships to travel between Lake Superior and the lower Great Lakes. They are located on the St. Marys River between Lake Superior and Lake Huron, between the Upper Peninsula of the U.S. state of Michigan and the Canadian province of Ontario. They bypass the rapids of the river, where the water falls 21 ft (6.4 m). The locks pass an average of 10,000 ships per year, despite being closed during the winter from January through March, when ice shuts down shipping on the Great Lakes. The winter closure period is used to inspect and maintain the locks.
Text from Wikipedia, CC BY-SA 4.0.
The record
| Property type | Building |
| Address | Portage St., Sault Ste. Marie, MI |
| County | Chippewa County |
| Listed | Nov 13, 1966 |
| Reference number | 66000394 |
| Built | 1855 |
| Type of place | lock, dam |
| Designations | National Historic Landmark |
| Contributing resources | 5 structures |
| Standing | Yes |
The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗
Visiting
| Address | Portage St., Sault Ste. Marie, MI |
| Coordinates | 46.50184, -84.35167 · Directions ↗ |
| Nearest national park unit | Pictured Rocks National Lakeshore · 93 mi · on Park Atlas |
| Federal campgrounds nearby | Monocle Lake 14 mi · Bay View (Hiawatha National Forest, Mi) 21 mi · Soldier Lake 27 mi |
Explore
Map
Reference
Sources
Location, dates, type and contributing counts come from the National Park Service's National Register spatial data. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 66000394. Nothing here is transcribed by hand. The description under "What it is" is the opening of the Wikipedia article, CC BY-SA.



