Eastern Mainline Project

TransCanada is proposing to construct, own and operate the Eastern Mainline Project which will include new natural gas pipeline and compression facilities to our existing Canadian Mainline system in Southern Ontario. The addition of this new natural gas transmission infrastructure will provide businesses, homes, schools and hospitals in Ontario and Quebec with access to a safe and diverse source of natural gas.

The Project

The project will include four sections of new natural gas transmission pipeline between the City of Markham and the Township of Edwardsburgh/Cardinal.
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The project will benefit communities by improving energy security, creating jobs and providing additional economic benefits.
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Talk To Us

We believe public engagement is a two-way process and invite neighbours, communities and others to share their questions with us.
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With more than 60 years experience, TransCanada is a leader in responsible development and reliable operation of North American energy infrastructure.
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