Pretty Channel Dams Stabilization

The project involves stabilizing the current dam by installing post tensioned anchors on the spillway and placing rockfill on the downstream side of the Main Dam right abutment and the Side Dam. The rockfill will be ferried to the work site where an excavator will place it directly on the abutments. The post-tensioned anchors will be installed from the existing operating deck of the dam. The sectional barge will be outfitted with offboard spuds which anchors the barge to the lakebed. After the stabilization, the walkways and the handrails at the Dams will be replaced. To provide snowmobile access across the dam, the new steel frame walkway will be widened to allow passage.

Latest update

April 28, 2026 – Parks Canada intends to make a determination regarding whether the carrying out of the project is likely to cause significant adverse environmental effects. To help inform this determination, Parks Canada is inviting public comments until May 28, 2026 respecting that determination.

Participate

Key documents

Key documents
Document number Document title File Date
1 New project being assessed by Parks Canada – Public comments invited from April 28 to May 28, 2026 - April 28, 2026

Contacts

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


Disclaimer

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.

  • Location

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

  • Nature of Activity

    • Dams and reservoirs

  • Assessment Status

    In progress

  • Start Date

    2026-04-28

  • Proponent

    Parks Canada

  • Authorities

    • Parks Canada Agency

  • Assessment Type

    Project on federal lands

  • Reference Number

    90413

Nearby assessments

...within 200 kilometres
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