Maintenance Dredging - Winvan Paving

The proposed project

Mainland Construction Materials proposes to complete routine maintenance dredging of its Winvan Paving barge berth to re-establish required depths to prevent barges from grounding. Similar maintenance dredging was most recently completed in 2015. An area of approximately 870 square meters will be dredged, with approximately 1,300 cubic meters of sediment to be removed and a target depth of -4.6 meters chart datum. Dredging is anticipated to occur twice a year, depending on freshet conditions, within the Fisheries and Oceans Canada (DFO) least-risk window for the Project area. 

In years where infill is minimal and concentrated near shore, sediment will be removed using a long reach excavator parked up land. The dredged materials will be dewatered and reused. In years where infill is significant along the bulk of the berth, sediment will be removed using a clamshell bucket dredge rig, and a barge. In this circumstance, sediment will be tested and likely disposed of at sea. 


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

End of public comment period 

The public comment period on the project is closed. The Vancouver Fraser Port Authority is considering comments received to help inform its determination on whether the carrying out of the project is likely to cause significant adverse environmental effects. .


Key documents

Key documents
Document Number Document Title File Date
1 Maintenance Dredging - Winvan Paving - Public comments invited - January 10, 2023


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

  • Location

    • Maintenance Dredging - Winvan Paving (British Columbia)
  • Nature of Activity

    • Ports and Harbours
  • Assessment Status

    In progress
  • Start Date

  • Proponent

    Mainland Construction Materials
  • Authorities

    • Vancouver Fraser Port Authority
  • Assessment Type

    Project on federal lands
  • Reference Number


Nearby assessments

..within 200 kilometres
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