An 18-wheeler flipped on the northbound ramp from Texas 121 to eastbound Interstate 635 Tuesday morning, killing the driver and closing the ramp for much of the morning rush hour, police say.
The crash happened at about 12:50 a.m. in the 1100 block of Texas 121 in Grapevine.
A preliminary investigation indicated the driver lost control, flipped the big rig on its side and struck a guardrail.
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Firefighters worked through the night to extract the man from the 18-wheeler cabin. Police said crews had to stabilize the truck before they could recover the body at about 3:15 a.m.
Police have not identified the driver, a man believed to be in his 20s or 30s.
Firefighters from Grapevine and DFW International Airport assisted in the crash. A Texas Department of Transportation crew will assess the guardrail.
The ramp from northbound 121 to eastbound I-635 was reopened before 7:30 a.m.