A tractor-trailer overturned on Interstate 95 Southbound in Bridgeport on Tuesday morning, backing up traffic for several exits.
The truck turned over between exits 27 and 27A, blocking the right and center lanes, and traffic was backed up to exit 30.
There were reports of a fuel spill and the state Department of Transportation estimated that it would take up to four hours to clear the scene, which would be between 10:30 a.m. and 11 a.m.
