VIDEO: 18-wheeler overturns on Dallas freeway

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DALLAS -- On Thursday, an 18-wheeler caused several accidents on the tollway near the Galleria and halted traffic for hours.

Now video shows how the accident happened. Investigators said the truck was going too fast

The ramp from Interstate 635 onto the Dallas North Tollway was shut down.
The semi crossed three lanes of traffic, flipped on top of a car and pushed an SUV over the concrete barrier into on-coming traffic.

The amazing part was that the truck's driver was not hurt.
The other two drivers were taken to the hospital and are expected to be okay.

No word on possible charges against the truck's driver. Traffic in the area was backed up for about six hours as that mess was being cleaned up.