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Second Narrows Crossing project

Second Narrows Crossing project map

Second Narrows Crossing project map

Select the map [PDF, 27.4 MB] to view it at a larger size.

Improving the reliability of our system

The 2L003 and 2L049 transmission lines that span Burrard Inlet at Second Narrows supply electricity to customers in Burnaby and Vancouver. The structures that carry these transmission lines, some of which were built in the 1920s, are at risk of being damaged during an earthquake and don't meet current seismic standards.

What's new

We’ve added a project overview presentation including the alternatives considered and an evaluation of them. Please see project reports and documents below to review it, and let us know if you have any questions or comments.

We’re working to upgrade, replace, or relocate up to four transmission line structures that cross Burrard Inlet at Second Narrows near the Iron Workers Memorial Bridge so that they will continue to be able to operate in the event of an earthquake.

This upgrade will increase the reliability of the electrical system by upgrading or replacing infrastructure that does not meet seismic standards. It will contribute to the safe and efficient operation of the transmission lines that serve Vancouver and Burnaby.

We're currently studying two alternatives to address the seismic risks associated with structures 687 to 689 and ensure safe and reliable operation of the power lines they carry.

We'll also assess Structure 690 for seismic risk as part of both alternatives and undertake upgrades, if required.

The alternatives we're considering are:

Alternative 1

Ground improvements and reinforcing structures 687 to 689 and their foundations.

Second Narrows Crossing - Alternative 1
Shown above is an aerial satellite map of the existing structures, near the Second Narrows Rail bridge. Image source: Google Earth and BC Hydro.

Alternative 2

Building a new overhead crossing near the existing alignment and removing existing structures 687 to 689. Two options are being considered.

Second Narrows Crossing - Alternative 2 Option 1
Alternative 2 – Option 1. Image source: Google Earth and BC Hydro.
Second Narrows Crossing - Alternative 2 Option 2
Alternative 2 - Option 2. Image source: Google Earth and BC Hydro.

Alternatives no longer considered

We also considered three other alternatives which were determined to not be viable and did not advance to the alternatives assessment:

  • Do nothing.
    • Does not address the issues with the existing structures.
  • Submarine cable.
    • The south bank is too steep for cables.
    • Much higher cost and longer schedule.
    • New right-of-way likely needed on both sides of the crossing.
  • Installing a new cable on Iron Workers Memorial Bridge.
    • The bridge can’t carry the weight of the power cables.

We'll decide on a leading alternative after we consider a variety of items including First Nations interests, environmental and/or archaeological impacts, cost, system reliability, constructability, maintenance, property requirements, stakeholder interests and schedule.

Key dates Activity
Spring 2024
  • Complete alternatives assessment
  • Identify leading alternative
Spring 2024 to Spring 2027
  • Refine leading alternative
  • Complete studies
  • Complete feasibility design
  • Identify preferred alternative
Spring 2027 to Spring 2030
  • Complete detailed design
  • Apply for and receive permits and authorizations
  • Issue a request for proposal (RFP) for construction contracts
Summer 2030
  • Start construction
  • Project in service


Project reports and documents

Share your feedback

If you'd like to share your feedback about the project and the alternatives being considered, please contact us at:

Phone: 604 623 4472
Toll free: 1 866 647 3334