The U.S. Army Corps of Engineers said it’s preparing to decide whether to let Enbridge install supports for its underwater oil pipeline in the Straits of Mackinac.
Erosion had opened a gap beneath one of two Line 5 pipelines in the channel linking Lakes Huron and Michigan.
The gap is about 6 feet wider than allowed under a state easement.
According to the company it wants to install more than 50 screw anchors for greater stability.
Michigan has granted a permit.