Reorganisation of the Grosse Île Harbour, Magdalen Islands

The harbour redevelopment project proposes to relocate a section of Breakwater 301 to allow for the installation of a portion of the existing and new floating pontoons, which will help relieve congestion in the fishing harbour. In addition to this work, wooden cribs (fixed docks 1 and 2) will be built to geometrically optimize the junction between the relocated breakwater, the boat launch and the existing wharf. Thus, the two existing lines of floating pontoons will be removed and the most recent one, which has a lever arm anchoring system, will be relocated to the new breakwater. Finally, dredging will be carried out for the installation of timber cribs, under the new floating pontoons and in the enlargement of the inner basin to allow for the safe mooring of surplus vessels using the floating pontoons.

Latest update

Notice of dermination for the Reorganisation of the Grosse Île Harbour, Magdalen Islands


November 9, 2020

Fisheries and Oceans Canada's Small Craft Harbours has issued its Notice of Determination and determined that the project is not likely to cause significant adverse environmental effects.

This determination was based on a consideration of the following factors:

· impacts on rights of Indigenous peoples;

· Indigenous knowledge;

· community knowledge;

· comments received from the public; and

· technically and economically feasible mitigation measures.

The authorities are satisfied that the project is unlikely to cause significant adverse environmental effects. Mitigation measures will be taken for several elements of the environment including: air, water, fish, avian fauna.

Consequently, the project can proceed.



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

  • Location

    • Grosse-Île, Îles-de-la-Madeleine, QC (Quebec)
  • Nature of Activity

    • Ports and Harbours
  • Assessment Status

  • Start Date

  • Proponent

    Fisheries and Oceans Canada - Small Craft Harbours
  • 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: