Enbridge contractor vessels may have bumped pipeline support

TRAVERSE CITY, Mich. (AP) — Recent damage that prompted the temporary shutdown of an Enbridge oil pipeline in a channel linking two of the Great Lakes may have been done by vessels working for the company, according to an in-house report provided Thursday to The Associated Press.

Enbridge this week submitted to government agencies the results of its investigation into “disturbances” that were discovered during inspections of dual pipelines that run across Michigan’s Straits of Mackinac. The two pipelines are part of Line 5, which carries oil and liquids used in propane between Superior, Wisconsin, and Sarnia, Ontario....