Bridge River Transmission Project

What's new

We're currently in the process of upgrading our Bridge River generating facilities located near Seton Portage to restore their capacity. The Bridge River Transmission Project will ensure that the regional transmission system can move electricity from these generating facilities to our customers during peak periods.

As part of the evaluation process currently underway on the three alternatives, it's become clear that for reliability, some maintenance work will be required on an existing line between Kelly Lake Substation and Bridge River Terminal Station (Alternative 1 map) during project construction, no matter which alternative is selected. This means that when an alternative is selected, construction work will now also include upgrades to approximately 110 structures on this existing line.

We now plan to have a leading alternative for this project by spring 2020.

The Bridge River Area Transmission Project will ensure that we continue providing clean, reliable electricity to communities in southern B.C.

Alternative 1 - Upgrades to an existing power line in the Lillooet area

We would upgrade approximately 135 structures and raise the height of an existing line in several sections between Kelly Lake Substation and Bridge River Terminal Station. Work would also include upgrades to existing access roads and the creation of some new roads to access the structures. Most of the work would be within existing BC Hydro right-of-way (the land under and around our power lines).

Lillooet area map


Alternative 2 - Upgrades to Rosedale Substation in the Fraser Valley

We would add new equipment and complete upgrades to the existing equipment at Rosedale distribution substation located just east of Chilliwack. All work would take place within the existing fenced area of the substation.



Alternative 3 - Adjustments to existing independent power producers (IPP) generation

We would request IPPs interconnecting at BC Hydro's Upper Harrison Terminal (UHT) at the north end of Harrison Lake to reduce generation during specific periods. There would be no physical changes at any location.


We're in the early planning stages of the project. Implementation of the preferred alternative is scheduled for 2022/2024. A more detailed schedule will be developed as the project progresses.

Maintenance work on the existing line between Kelly Lake Substation and Bridge River Terminal Station will occur as needed, regardless of the selected alternative, over the coming years and may begin this summer.

We'll keep local governments, residents and businesses located near each alternative informed of this project through regular communications and gather input at key milestones.

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604 623 4472
Toll free: 1 866 647 3334