Workers Cleaning Up CN Wreck in St. Clair Tunnel

Workers were still cleaning up during the weekend more than 13,000 gallons of sulfuric acid that spilled in a Canadian National derailment Friday morning in the St. Clair River tunnel between Michigan and Canada.

Officials said crews are cleaning up the derailment from both sides of the border. Forty-six More than 40 cars of the westbound train derailed inside the tunnel, which links Port Huron, Michigan, and Sarnia, Ontario.

Investigators are still trying to determine the cause of the derailment and whether it began on the U.S. or Canadian side of the border.

The U.S. National Transportation Safety Board has sent a team to the site but the Transportation Safety Board of Canada also has a team onsite as well.

TSC said in a statement that once the determination of where the derailment began is determined that country’s safety agency will be the lead agency in the investigation.

To remove the spilled acid, crews had to remove other derailed cars to reach the site. The acid was being pumped out of the tunnel.

Railroad officials have not provided an estimate of how long the more the tunnel will be closed.

More than a mile in length, the tunnel opened in 1995 to replace an adjacent tunnel built in 1891.

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