*10 P.M. Update*

A busy Brazos Valley highway reopened around 9:40 Saturday evening after a tanker truck carrying gasoline rolled over at OSR near Macey Road in northeast Brazos County.

Some of the gasoline inside the tanker leaked onto the highway.

TxDOT told us it would be until at least 8 P.M. before the site would be fully cleaned up and the 18-wheeler towed away.

Amazingly the driver was not injured in the rollover and was released from the scene.

A scene of destruction littered OSR at F-M 1940 in Brazos County after a driver ran off the road, rolling over his tanker truck.

Drivers like Mark Jones of Bryan were waiting for hours to get through.

He and his wife are headed to their lake house at Camp Creek.

"Well I was coming and Bryan Fire Department ambulance passed me so I caught up to it and I went ahead and blocked off the road to help the sheriff and DPS and everybody," said Jones.

The truck's cab was destroyed and gasoline leaked out of the tanker.

DPS Trooper Kelly Krieg tells us the truck driver was heading east on OSR when the crash happened a little before noon.

"It just left the roadway for unknown reasons at this point due to it being a heavy truck and a soft shoulder on this road once it left the roadway it was done. It rolled ¾ of a turn to the right and came to a rest where it's at now," said Krieg.

Crews were working to clean the spilled gas which we're told landed in the nearby grass and isn't close to any water sources.

"As soon as we can get the rest of the gasoline pumped out of this tanker and then we get the truck overturned and get it out of that ditch then traffic will be reopened on this highway," Trooper Krieg added.

"Experience from driving 18-wheelers for the last 13 and a half years he's very lucky because usually the cabs just crumble they are basically paper thin walls and all that. So he's very lucky," said Mark Jones.

As of now the driver is not being ticketed for the single vehicle accident.

DPS is still investigating why the driver lost control.

*Previous Story*
OSR near Macey Road is expected to remain closed until Saturday night due to a major accident involving a gasoline tanker truck that has overturned and leaked contents. HAZMAT crews are on scene to clean up the spill.

TXDOT says that an 18-wheeler hauling gas has turned over on OSR at FM 1940 in Brazos County. Emergency personnel are on the scene. OSR will remain closed in this area until 8pm tonight while crews clean the spilled gas.

Motorists should find an alternate route.

The driver was not injured in the accident and was not taken to the hospital.

DPS Troopers tell News 3 he lost control for some reason and went off onto the soft shoulder which caused the truck to roll over.

KBTX will bring more information as it becomes available.