Ontario Waterways, Six Mile Lake Dams Rehabilitation

The project is a complete replacement of the Main Dam and the rehabilitation of the Back Channel Dam. The main work involves the complete demolition of the existing main dam, construction of a new dam in the same location and orientation and complete rehabilitation of the Back Channel Dam. The capacity of the main dam will be increased, and the sluice width standardized by converting the 3.05m sluice into a 6.1m wide sluice, with 3 overflow spillway sections. Parks Canada owns the assets as well as adjacent property. Associated works include clearing for laydown and project staging and construction of temporary cofferdams.

Latest update

April 03, 2024 - The assessment decision statement has been issued to the proponent.



Trent-Severn Waterway National Historic Site
P.O. Box 567
Peterborough, Ontario K9J 6Z6
Telephone: 705-750-4900 or 1-888-773-8888
Email: trentsevern@pc.gc.ca

  • Location

    • Trent-Severn Waterway National Historic Site of Canada (Ontario)
  • Nature of Activity

    • Dams and reservoirs
  • Assessment Status

  • Start Date

  • Proponent

    Parks Canada
  • Authorities

    • Parks Canada Agency
  • 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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