Iona North Arm Jetty Breach

Raincoast Conservation Foundation (a charitable, non-profit conservation science organization) is proposing to construct a linear breach, i.e., channel, across the Iona Island North Arm Jetty in the Fraser River estuary, Richmond, B.C. The North Arm Jetty is a human-made structure that was constructed in 1916 to aid in navigation. The goal of this project is to restore natural migration pathways for juvenile salmon and other fish species, and to restore the natural movement of freshwater and fine sediments in the estuary.

The proposed Project works include: 

  • Excavation of a jetty breach of approximately 95 meters long and 30 meters wide, to an elevation of -1.0 meter Geodetic Datum, and lining with filter rock and rip rap to a final elevation of -0.5 meters Geodetic Datum
  • Installation of a temporary barge ramp constructed of filter rock and rip rap next to the breach site
  • Transportation of construction equipment and materials to the project site by barge

Construction of the jetty breach is anticipated to require 4 to 6 weeks.


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.


Latest update

Iona North Arm Jetty Breach – Public comments invited

November 10, 2021 – The Vancouver Fraser Port Authority, as part of its Project and Environmental Review process, and Transport Canada must determine whether the proposed Iona North Arm Jetty Breach, located in the Fraser River Estuary, Richmond, B.C. is likely to cause significant adverse environmental effects. Written comments to be received by December 9, 2021.

List all records


Project and Environmental Review
Vancouver Fraser Port Authority
100 The Pointe, 999 Canada Place
Vancouver, British Columbia V6C 3T4

  • Location

    • Iona North Arm Jetty Breach (British Columbia)
  • Nature of Activity

    • Other, not otherwise specified
    • Remediation and conservation
  • Assessment Status

    In progress
  • Start Date

  • Proponent

    Raincoast Conservation Foundation
  • Authorities

    • Transport Canada
    • Vancouver Fraser Port Authority
  • Assessment Type

    Project on federal lands
  • Reference Number


Nearby assessments

..within 200 kilometres
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