February 19, 2019 - Community Update: Construction Update

Dams play an integral role in water management within the Trent-Severn system and therefore are essential for public safety. The Government of Canada will invest an historic $3 billion into Parks Canada infrastructure, more than $600 million of which has been announced on the Trent-Severn Waterway and its reservoir lakes. As a part of this investment, work is proposed to rehabilitate the Coboconk Dam. This project is currently in the design stage.

Parks Canada will seek to reduce any impact of construction for those visitors and residents in the Coboconk area. Residents may notice intermittent machinery noise and increased trucking. The project will be conducted in a way that minimizes the in-water footprint - this means staging work in phases on different parts of the dam as well as working from a barge.    

Concrete repairs will begin on the west side of the dam and progress to the east by the end of 2019. This phasing will allow for ongoing water management throughout the construction period. Water management capabilities and water levels will not be affected during the course of construction.

Rehabilitation of the dam is expected to be continuous throughout 2019 until spring of 2020. 

About the Coboconk Dam

The Coboconk Dam was built in 1939. It is located in the cottage community of Coboconk, at the outlet of the Silver and Shadow Lake system leading into Balsam Lake. Silver and Shadow Lakes are a part of the Gull River reservoir system, and this dam is one of the points where the reservoir lakes meet the Trent-Severn Waterway. Balsam Lake is the highest point on the Trent-Severn Waterway, and the highest freshwater point from which one can circumnavigate the globe in North America.

For More Information 

For more information about the Trent-Severn Waterway Historic Site, contact us at Ont.Trentsevern@pc.gc.ca or follow us on Facebook and Twitter @TrentSevernNHS.


October 23, 2018 - Community Update: Coboconk Dam Rehabilitation
July 24, 2018 -
Community Update: Coboconk Dam Rehabilitation to Begin
December 14, 2016
- Community Update: Coboconk Dam Rehabilitation