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CN rail bridge seismic retrofit project

Canadian National Railway Company (CN) proposes to complete seismic retrofit upgrades to the CN rail bridge located at Mile 118.7 on the Fraser River directly upstream of the Pattullo Bridge. Upgrades will require the installation of ten new 2750 millimetre diameter steel piles. Two piles each will be installed at pier 6, 7, 8, 9 and 10.  New piles will be connected to the in-water piers using steel girder collars, pile sleeves and caps. Piles will be driven in welded segments by impact hammer from a temporary construction trestle or barge. The purpose of the project is to strengthen the substructure and foundations for increased seismic capacity.


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..

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

  • Location

    • CN rail bridge seismic retrofit project (British Columbia)
  • Project Type

    • Railways
  • Status

    In progress
  • Start Date

  • Proponent

    Canadian National Railway Company (CN)
  • Authorities

    • Vancouver Fraser Port Authority
  • Assessment Type

    Project on federal lands
  • Reference Number


Nearby projects

..within 200 kilometres
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