State Highway 130 was shut down near Parmer Lane after an 18-wheeler hauling a liquid nitrogen trailer caught on fire, according to the Austin Fire Department.
A half-mile area around the fire was evacuated due to the risk of a tank explosion, AFD said. No area residents were affected and only one business was within the half-mile radius, but no word on whether anyone was there at the time.
All lanes of SH 130 were closed after first responders were called to the scene around 7:30 p.m.
Automated emergency phone calls warning about the situation were sent out to the neighboring area, Austin Fire says.
AFD said in a tweet that the cab, which was engulfed, burned down and crews moved in to put it out. A small grass fire nearby was also under control. They believe the cause of the 18-wheeler fire was a mechanical issue.
In an update around 9:10 p.m., AFD said the fire was out and there were no leaks of the cargo. Northbound lanes were then reopened. The southbound lanes reopened around 5:30 a.m. Friday.