SAGINAW COUNTY, Mich. -- A chemical leak forced I-75 to close for nearly 18 hours through Saginaw County Michigan.

Both sides were shut down when a tanker truck rolled over and spilled acrylic acid.

A nearby mall and movie theater were forced to be evacuated.

The spill happened Sunday night and crews were still cleaning it up Monday.

The mess caused quite the traffic back-up.

"I'm driving from Detroit and have to go to Bay City for a job. It’s roughly an hour and 45 minutes today it's an extra hour," said John Plichota, a driver from Detroit.

The extra traffic was helpful for businesses off the interstate.

I-75 was back open Tuesday.