Weirs rehabilitation in the Lac Saint-Pierre archipelago

The Fisheries and Oceans Canada/Canadian Coast Guard (DFO-CCG) project consists of upgrading the five (5) weirs located in the Lac Saint-Pierre archipelago. DFO-CCG is responsible for the safety, protection and accessibility of Canada's waterways. DFO-Quebec Region's Real Property, Environment, Security and Safety (RPESS) Branch is the project proponent.

The scope of work on each weir could be different, but essentially consists of rehabilitating the existing structures by repairing damage and raising the crests to their original elevation to give them a new service life of around 40 years.

Latest update

October 17, 2023 - Fisheries and Oceans Canada - Real Property, Environment, Security and Safety (DFO-RPESS) intends to make a determination whether the carrying out of this project is likely to cause significant adverse environmental effects.

To assist in this process, DFO-RPESS invites the public to submit any comments or concerns following the publication of this notice.
October 17, 2023 - A public participation period is underway.


Key documents

Key documents
Document Number Document Title File Date
1 Notice of Intent to Make a Determination-Start of Public Comment Period - October 17, 2023


Real Property - Technical services
104 Dalhousie street
Québec, Quebec G1K 7Y7

  • Location

    • Lac Saint-Pierre archipelago (Quebec)
  • Nature of Activity

    • Water Management
    • Dams and reservoirs
  • Assessment Status

    In progress
  • Start Date

  • Proponent

    DFO Quebec Region - Real Property, Environment, Security and Safety
  • Authorities

    • Fisheries and Oceans Canada
  • Assessment Type

    Project on federal lands
  • Reference Number


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
Date modified: