Traffic along I-75 came to a standstill around noon Monday after a semi jackknifed just north of the Clay's Ferry Bridge.
State Police said it happened in the northbound lane between the 100 and 101 mile markers.
The driver said he was headed north when his brakes suddenly locked up, causing the truck to swerve into the median.
The driver wasn't hurt, and troopers said no other cars were involved.
The scene has since been cleared and traffic is now moving again.