Community Update: Drag Lake Dam South Construction Update

Trent-Severn Waterway National Historic Site

A photo of drag lake south dam

August 11, 2021 –As part of the historic program of investment into the infrastructure supporting the Trent-Severn Waterway, Parks Canada is moving forward with a full replacement of Drag Lake Dam South beginning in mid-August 2021.

Work to replace Drag Lake Dam South will include the construction of two sluices, hydro intake and abutment walls, new mechanical equipment and public safety improvements. The project is expected to take approximately one year to complete. The contractor will be onsite Monday to Friday between the hours of 7 a.m. to 8 p.m., and Saturdays as necessary. Construction noise and traffic can be expected during this time.

The Drag Lake Dam site includes two concrete dams (north and south) on each side of a small island, both with extended concrete wing walls branching off of the sides of the operable sluice. Drag Lake Dam North was successfully rehabilitated in 2017 as part of the Federal Infrastructure Investment program.

Parks Canada is leading 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.

More Information

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

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