The truck hit the overpass on King of Prussia Road around 1 a.m. Thursday and the trailer detached.
The driver continued to drive the cab of the tractor for approximately three miles, creating a fiery scene on Lancaster Avenue and Airdale Road.
King of Prussia Road was closed between Matsonford and Radnor Chester roads by the Paoli-Thorndale Line at the Radnor SEPTA station.
It reopened just before 8 a.m.
Due to the accident, SEPTA suspended the Paoli-Thorndale Line for a short time early Thursday morning. Around 4:45 a.m., SEPTA announced service had resumed.
SEPTA says due to an accident blocking King of Prussia Road, customers using Radnor Station must enter and exit using the entrance on Matsonford Road. The entrance on King of Prussia Road is currently closed.
The tractor-trailer, which appeared to be carrying plants, left debris all over the roadway.
Action News is told it appeared the driver of the tractor-trailer was traveling at a high rate of speed when the truck hit the bridge overpass.
The overpass is marked with a 10 foot limit.
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