Federal officials hear arguments on Enbridge pipeline tunnel
Canadian pipeline company wants to drill a nearly 6.4-kilometre tunnel through bedrock under the Straits of Mackinac.
Enbridge wins approval to restart east leg of Line 5 pipeline
Both legs shut down in June after noticing a disturbance to an underwater anchor supporting the eastern line.
Michigan asks judge to shut Enbridge pipeline in Great Lakes
Energy company insists Line 5 pipeline was not damaged, flow of oil and natural gas liquids resumed June 20.
Enbridge reaches deal with Michigan on underwater Great Lakes pipeline
Looking at three options to eventually replace the 7 kilometre stretch of underwater pipeline.