Nassau Mills Dam Replacement, Trent-Severn Waterway

The project is a complete replacement of the dam by a newly constructed sluiceway dam with an expected service life of 80 to 100 years. The scope of work includes phased reconstruction of the entire existing structure downstream of the existing dam. Project activities include, but are not limited to, constructing cofferdams, replacement of the dam, sluices, new stop logs, new decks, operator safety features, railing for public safety, new floating safety boom, landscape and embankment works, commissioning, demolition of the old dam and site restoration.

Scope: The Detailed Impact Assessment will assess the impacts on fish and fish habitat, water quality, Species at Risk and Critical Habitat, vegetation, wildlife, Heritage Features, Archaeological Resources, and visitor experience. Through engagement, it will additionally assess potential impact to Indigenous treaty and/or Indigenous rights and interests.

Latest update

August 19, 2024 – Parks Canada and Fisheries and Oceans Canada intend 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 and Fisheries and Oceans Canada are inviting public comments until September 18, 2024 respecting that determination.

Participate

Key documents

Key documents
Document Number Document Title File Date
1 Nassau Mills Dam Replacement, Trent-Severn Waterway - Public comments invited from August 19 to September 18, 2024 - August 19, 2024

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


  • Location

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

  • Nature of Activity

    • Dams and reservoirs

  • Assessment Status

    In progress

  • Start Date

    2024-08-19

  • Proponent

    Parks Canada

  • Authorities

    • Fisheries and Oceans Canada
    • Parks Canada Agency

  • Assessment Type

    Project on federal lands

  • Reference Number

    88838
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.

 

Nearby assessments

...within 200 kilometres
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