Edson Mainline Expansion Project

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The pipeline expansion project in western Alberta is required to expand pipeline capacity for the transportation of natural gas to growing markets located in central and southern Alberta from the Peace River Project Area.

The proposed Project consists of two pipeline components which would add up to approximately 86 kilometres (km) of newly constructed 48-inch pipe to the NGTL System, as well as a compressor station unit addition at an existing compressor station facility.

The Elk River section consists of approximately 41 km of 48-inch pipeline located 115 km southeast from Hinton, Alberta, in Yellowhead and Clearwater Counties.

The Alford Creek section consists of approximately 45 km of 48-inch pipeline located 29 km west from Rocky Mountain House, Alberta in Clearwater County.

NGTL is also proposing a unit addition at the existing Princess Compressor Station located approximately 30 km northeast of Brooks, Alberta, in the County of Newell.

This Project is part of TransCanada’s $1.5 billion expansion to the NGTL System to connect WCSB supply to incremental market demand. Read more.



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 Event Details

Please join us for some refreshments and a conversation at an open house for TransCanada’s proposed Edson Mainline Expansion Project. Everyone is welcome and we hope to see you there!

Date: Thursday, February 21, 2019
Time: 5:00-8:00 p.m.
Location: The Subway A/B Room - Christenson Sports & Wellness Centre 

  • 5332-50 St., Rocky Mountain House, Alberta

Please note this is a drop-in event and no formal presentation will be given.


Project Schedule

Q2 2018

Commenced landowner engagement 

Q3 2018

Commenced early Aboriginal and stakeholder engagement

Q3 2018

Commenced environmental & technical analysis 

Q3 2018

Commenced survey & field studies 

Q4 2018

Began broad engagement on project study areas 

Q1 2019

Filed a Project Description with the NEB 

Q2 2019

Anticipate Filing a Section 52 application with the NEB 

Q1/Q2 2021 Subject to regulatory approval, commence compressor station construction activities 
Q3/Q4 2021 Subject to regulatory approval, commence pipeline construction activities 
Q2 2022 Anticipate construction to be complete and project components placed into service 

Community Benefits

The proposed project will deliver well-designed and constructed infrastructure that provides short term and long term economic benefits and strengthens the economy on a local, provincial and national level.

Employment Opportunities – Construction will require the services of equipment operators, welders, mechanics, truck drivers, labourers and more.

Business Opportunities – Pipeline construction will create demand for local goods and services including food and accommodation, hardware, industrial parts, automotive parts and servicing, fuel and more.

Annual Revenue to Support Local Services – Project construction will result in tax payments to municipal, provincial and federal governments. When the project is operational, annual tax payments will help support schools and hospitals, emergency services, recreation facilities, recycling programs and other local programs vital to sustaining communities.

Investments in Local Communities – Through our engagement with local communities, we will identify areas where we can help build stronger, more vibrant communities through initiatives with community partnerships in the areas of safety, community and environment.


Documents and Maps

The proposed Edson Mainline Expansion Project in western Alberta is required to expand pipeline capacity for the transportation of natural gas to growing markets located in central and southern Alberta from the Peace River Project Area.



How are we regulated?

The proposed Edson Mainline Expansion Project will be part of the NGTL System, which is governed according to regulations outlined by the National Energy Board (NEB).

Regulatory Information

As required by the NEB, NGTL  filed a Project Description with the NEB on January 8, 2019. This Project description can be viewed on the NEB’s website here. NGTL anticipates filing a Section 52 application in the second quarter of 2019 for approval to build, own and operate the project. 


National Energy Board (NEB)
Local 1.403.292.4800 1.403.292.5503
Toll-Free 1.800.899.1265 1.877.288.8803


Ways to reach us

We’re here to answer your questions. For general questions you can contact us by email, but for a quicker response, please call us directly.

Edson Mainline Expansion

450 – 1 St. S.W.
Calgary, Alberta
T2P 5H1


Emergency Response

Our commitment to the safety of our people, pipelines and facilities is unwavering. In case of an emergency, please call the appropriate 24-hour toll-free hotline:

Canada: 1.888.982.7222

Landowner Helpline
A key component in maintaining the integrity of our facilities is input from all stakeholders: Indigenous communities, landowners and governments. If you have questions or concerns, please let us know.

Head Office
450 – 1 St. SW
Calgary, Alberta
T2P 5H1


Media Relations
TransCanada welcomes enquiries from media. Please direct questions to:
1.800.608.7859 Toll-free (North America)

Investor Relations
We welcome inquiries from analysts, shareholders and prospective shareholders at:
1.800.361.6522 Toll-free (North America)