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Enbridge ‘disappointed’ in delay on Line 5 tunnel project

Above ground section of Enbridge's Line 5 at Mackinaw City, Mich., pump station photo
John Flesher
Associated Press

Enbridge Energy says it’s disappointed that the timeline for its tunnel in the Straits of Mackinac has been pushed back. The Army Corps of Engineers is extending its environmental review for the proposed Line 5 tunnel.

The tunnel would be drilled under the lakebed in the Straits of Mackinac, and a new 4-mile segment of Line 5 would be installed inside.

But the project can’t move forward without a federal permit. The process to approve that permit is now being pushed back.

Enbridge says the company supports a thorough review of the project but is “disappointed” with the new timeline for a project of this scope.

The Army Corps initially planned to publish a draft environmental review this fall, but now says it’ll be released in the spring of 2025.

The permitting process will now likely be completed more than a year later than originally estimated.

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