James Anthony Long, 59, of Clarksville, Tenn., was pronounced dead at the scene of the wreck.
Police say the rig was westbound on I-30 when it veered off the right shoulder and slammed through a guardrail and retaining wall. The tractor trailer fell onto the toll road below and burst into flames.
Police officers working at a nearby lane closure quickly arrived. The officers and stopping drivers tried to rescue Long from the truck cab but were forced back as flames consumed the cab.
The crash shut down the westbound lanes of I-30 and both directions of the turnpike for several hours Saturday.
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