The pipeline carries 540,000 barrels of oil per day from Canada through the Great Lakes region.
An Enbridge spokesperson said on Saturday the company plans to appeal the judge's order.
Enbridge said in court filings ahead of the judge's action that a hasty shutdown of the pipeline was unnecessary and would cause "extreme market turmoil."
The company has proposed re-routing the pipeline around the tribal reservation, but has not received federal approvals to do so.
The judge in November said significant erosion that could cause a rupture was unlikely, but told the parties to develop a shutdown plan anyway.
Persons:
William Conley, Conley, Enbridge, Clark Mindock, Will Dunham
Organizations:
Thomson
Locations:
U.S, Canadian, Wisconsin, Madison, Canada, United States, New York