Traffic was backed up for more than 15 miles following a crash on Interstate 495 Wednesday morning.
The crash, involving a tractor-trailer and a car, happened near Woburn Street in Lowell. Two lanes on the southbound side of the highway were shut down, but have since re-opened.
Traffic was backed up to Route 3 in Methuen. Drivers should seek alternate routes around the area.
There was no word on any injuries.
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