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Army Corps Issues Permit for Enbridge Mackinac Tunnel
8/14/2026
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Enbridge Tunnel Permit
- The Army Corps of Engineers issued a permit on August 12 2026 for Enbridge Energy to construct a tunnel beneath the Straits of Mackinac.
- Assistant Secretary of the Army for Civil Works Adam Telle said approval, under President Donald Trump’s “Building Infrastructure, No Paperwork” initiative, reflects his energy vision.
- Corps warned the tunnel could harm Houghton’s goldenrod and dwarf lake iris.
- A 6-1 Michigan Supreme Court ruling overturned a permit, adding years to construction.
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