Army Corps issues Line 5 tunnel permit despite opposition
The U.S. Army Corps of Engineers granted Enbridge a permit for the Line 5 tunnel project in the Straits of Mackinac, the last federal hurdle for the 3.6-mile tunnel. The approval follows state permits last month, but the Michigan Supreme Court ruled 6-1 that state regulators must reevaluate environmental impacts. Tribal nations and advocates oppose the pipeline over spill risks.