Update: On Aug. 31, 2018 the Federal Court of Appeal overturned Ottawa's approval of the Trans Mountain pipeline expansion. Construction activities are being suspended.

Momentum is building for construction of the Trans Mountain Pipeline Expansion, with Kinder Morgan Canada releasing the final list of its major contractors.

The company had previously released a list of six companies to lead the work on the $7.4 billion project in September 2017, but has since added WorleyParsonsCord as the seventh construction firm.

“The final list provides a mixture between union and non-unionized contractors, and we’re pleased with the caliber and experience of the companies selected. Each contractor was chosen for its expertise in delivering quality work, availability and the individual needs and complexities of each portion of the project,” Trans Mountain media relations told JWN.

Construction activities at the Trans Mountain Westridge Marine Terminal have been ongoing since September 2017.

Pipeline construction preparation activities, such as surveying, staking and flagging the right-of-way, and installing signage began on Spread 2 in central Alberta earlier this month. Trans Mountain says right of way clearing for Spread 2 will also begin this month.

“Work is underway along the entire pipeline route to develop temporary infrastructure sites such as stockpile sites, construction yards and camps,” the company said. “Work will begin in Spread 3 in September 2018 and Spread 4 [in Northeast B.C.] in November 2018.”

Here are the construction contractors:

SA Energy Group is the general contractor for portions of pipeline construction in Greater Edmonton (Spread 1), a portion of the North Thompson region (Spread 4B) and the Fraser Valley (Spread 6).

Midwest Pipelines is the contractor for the Yellowhead portion of the project between Edmonton and Jasper National Park (Spread 2).

The Ledcor Sicim Limited Partnership, which has a particular focus on challenging mountainous terrain, is contractor for the majority of the North Thompson portion of the Project (Spreads 3 and 4A).

Surerus Murphy Joint Venture is the contractor for the BC Interior portion of the project between Black Pines and the Coquihalla Summit (Spread 5A).

Macro Spiecapag Joint Venture, which also has extensive experience in mountainous terrain, is contractor for the Coquihalla-Hope portion of the project.

Kiewit Ledcor TMEP Partnership is the contractor for the Lower Mainland - including the Westridge Marine Terminal, Burnaby Terminal and Tunnel, the Sumas Terminal, and pipeline from Langley to Burnaby (Spread 7).

WorleyParsonsCord is the contractor responsible for the Edmonton Terminal and all 12 pump stations included in the Trans Mountain Expansion Project.