Addition of a line of floating pontoons and riprap to breakwater 301 at Grosse-Île harbour, Magdalen Islands

The project includes work on the current breakwater to allow the anchoring of floating pontoons at the inner end of breakwater 301. The work also includes raising the current riprap of the breakwater to allow better protection of users in this new sector of the harbor with pontoons.

Latest update

Notice of Determination 

January 26, 2024

Transport Canada (TC) and Fisheries and Oceans Canada - Small Craft Harbors (DFO-SCH) publish the Notice of Determination and have determined that the project is not likely to cause significant adverse environmental effects.

This determination was based on the following factors:

  • impacts on the rights of Indigenous peoples of Canada;
  • Indigenous knowledge;
  • community knowledge;
  • comments received from the public; And · technically and economically feasible mitigation measures.

Mitigation measures will be implemented for several elements of the environment, in particular the following elements: air, water and fish. The various mitigation measures for the project are attached..


Key documents

Key documents
Document Number Document Title File Date
1 Mitigation measures PDF (78 KB) January 26, 2024


Small craft habours - Quebec Region
104 rue Dalhousie
Québec, Quebec G1K 7Y7

  • Location

    • Grosse-Ile Harbour, Magdalen Islands (Quebec)
  • Nature of Activity

    • Ports and Harbours
  • Assessment Status

  • Start Date

  • Proponent

    Fisheries and Oceans Canada - Small Craft Harbours
  • Authorities

    • Fisheries and Oceans Canada
    • Transport 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.

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