Sault Ste. Marie Canal Unwatering Investigation

A section of the Sault Ste. Marie Canal Lock will be unwatered around the lock gates to investigate and assess the condition of the canal's infrastructure and functional components. This project includes maintenance work and previously identified repair needs and is required to ensure the safe and continued operation of the recreational waterway locks along the St. Mary's River. The unwatering investigation work outlined in this impact assessment will support the creation of works scheduled for major repairs in a further planned unwatering and contribute to the long-term capital asset management planning for the site.

Latest update

December 04, 2023 - The assessment decision statement has been issued to the proponent.



Sault Ste. Marie Canal National Historic Site
0, Hwy 627
PO Box 212
Heron Bay, Ontario P0T 1R0

  • Location

    • Sault Ste. Marie Canal National Historic Site of Canada (Ontario)
  • Nature of Activity

    • Water Management
    • Maintenance activities (fences, walls)
  • Assessment Status

  • Start Date

  • Proponent

    Parks Canada
  • Authorities

    • Fisheries and Oceans Canada
    • Parks Canada Agency
    • Transport Canada
  • Assessment Type

    Project on federal lands
  • Reference Number


This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.


Nearby assessments

...within 200 kilometres
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