Enbridge says gap opens beneath Great Lakes oil pipeline

TRAVERSE CITY, Mich. (AP) — The company that operates dual oil pipelines in a key Great Lakes channel says a gap has opened between one pipe and the lake bed that’s wider than allowed under an agreement with the state of Michigan.
Enbridge Inc.’s Line 5 carries crude oil between Superior, Wisconsin, and Sarnia, Ontario. A 4-mile (6.4-kilometer) section runs across the bottom of the Straits of Mackinac linking Lakes Huron and Michigan.
Erosion sometimes creates gaps between sect