North Montney Mainline Project

TransCanada filed a variance application with the National Energy Board which would allow TransCanada to proceed with construction of the majority of the North Montney Mainline (NMML) Project prior to a final investment decision on the PNW LNG project. TransCanada has previously been granted the required primary federal and provincial approvals to construct the NMML, subject to conditions that included the requirement for a positive final investment decision on the proposed Pacific Northwest LNG Project.

Subject to regulatory approvals, TransCanada plans to begin construction in the first half of 2018, with facilities being phased into service over a two-year period, beginning in April 2019.

Located in the Peace River Regional District, the project will be approximately 301 kilometres (km) of pipeline and include associated metering facilities, valve sites, and compression facilities. The Aitken Creek section will be approximately 182 km of 42-inch diameter pipeline. The south end will connect with the northern end of the existing Groundbirch Mainline (Saturn Section), located about 35 km southwest of Fort St. John. The north end will be about 100 km northwest of Fort St. John. The Kahta section will be approximately 119 km of 42-inch diameter pipeline connecting to the north end of the Aitken Creek section and ending at a point about 180 km northwest of Fort St. John.

For more information, please read our media release, TransCanada seeks approval to proceed with North Montney Mainline Project.

Related Information

Project Information


Past Events


    Contractor / Vendor Registration


    For General Enquiries Contact us at: 

    Toll free: 1.855.895.8753
    Chetwynd: 250.329.4679
    NorthMontney@TransCanada.com