NextBridge Infrastructure (NextBridge) is a partnership between affiliates of NextEra Energy Canada, Enbridge Inc. and OMERS Infrastructure, established to participate in the Ontario transmission market. Collectively, the partnership submitted a proposal to the Ontario Energy Board (OEB) for the planning, development, construction, ownership, operation and maintenance of the East-West Tie (EWT) transmission project (the Project) in Northern Ontario. On August 7, 2013 NextBridge was designated by the OEB to develop the EWT line and to file a leave-to-construction application.

The Project is an approximately 450 km double-circuit 230 kilovolt transmission line from the Wawa Transformer Station (TS) to the Lakehead TS in the Municipality of Shuniah, near Thunder Bay, ON, with a connection approximately mid-way at the Marathon TS. The Project will also require new and improved access roads and temporary laydown and work areas.

The Ministry of the Environment and Climate Change approved the Terms of Reference for the new East-West Tie Project Individual Environmental Assessment on August 28, 2014. NextBridge has commenced and is continuing with activities supporting the Environmental Assessment under the Environmental Assessment Act for the new East-West Tie Project.


The amended Environmental Assessment (EA) Report is now available for review until March 29, 2018. The amended EA can be downloaded from the Project Information page (click here) or can be viewed at the review locations listed on the Notice of Submission of the amended EA. English and French versions of the notice can be viewed here  (version français).

PLEASE NOTE: Three items were mistakenly excluded from the amended Environmental Assessment available for review at public review locations. The documents on this site are up to date. If you are viewing on the laptops or the USBs available at the public review locations, hard copies of the missing items will be made available to view at those locations. The Notice of Errata can be accessed here.

NextBridge has filed responses to interrogatories to the Ontario Energy Board as part of the Leave to Construct Proceedings. The interrogatories and responses can be viewed here.

About NextBridge

Learn more about NextBridge and its Joint Venture companies.


Project Information

Information and links about the EWT transmission project.


Community Relations

Our commitment to communities, including Aboriginal communities.


News Updates

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Latest imagery of the preliminary preferred route.