Info-Work: Scotts Mills Dam Reconstruction – Project Update

Trent-Severn Waterway National Historic Site

August 03, 2022 – PETERBOROUGH, ON – The project to replace the Scotts Mills Dam at Lock 19 in Peterborough has reached a significant milestone: all work on the new dam below the waterline is now complete.

The remaining work includes the placement of decking and railings on the dam, log lifter rails on the remaining sluices, and wall work on the east bank of the river adjacent to the dam. Following removal of the cofferdams and trestle bridge, grading and landscaping of the east access and construction laydown area will occur.

The remaining construction activities will involve using a vibration attachment to remove steel piles from the existing cofferdam and bridge structure and are expected to continue for the next few months. The grading and landscaping will involve large equipment movement on the east bank. These activities will generate higher levels of noise than experienced in recent months.

A reminder that heavy noise-generating activities will be limited to the following times:

  • Monday – Saturday: 7 a.m. to 9 p.m.
  • Sunday: 9 a.m. to 9 p.m.
Parks Canada is leading this important infrastructure work to ensure safe, high-quality experiences for visitors by improving heritage, visitor, waterway, and highway assets located within national historic sites, national parks, and national marine conservation areas, including along the Trent-Severn Waterway National Historic Site. We appreciate your patience while we undertake these important investments into the infrastructure in Peterborough.

More Information:

For questions or concerns, or to receive email updates regarding this project, please contact us at and include “Scotts Mills Dam Reconstruction” in the subject heading. For news about this or other infrastructure projects in your area or Questions and Answers on this project, please visit


Maureen Belej,
Public Relations and Communications Officer Ontario Waterways,
Parks Canada

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