South of Del Valle, not too far away from the Circuit of the Americas, there was a deadly crash. At the top of the hill on FM 812, the road curves to meet with FM 973 and according to Austin-Travis County EMS, that's where the accident happened.
A white, utility truck was driving eastbound on FM 812, turning onto 973.
"In the process of making that turn he lost a piece of equipment on his vehicle," DPS Trooper, Robbie Barrera said.
It was a transformer.
"The driver did come up, stop, was attempting to move that equipment…when a Ford pickup truck swerved to miss that, rolling several times," Barrera said
Barrera says the driver of the black and tan truck is 27-year-old Grisela Ambrez. Two of her children, a 6-year-old boy and 7-year-old-girl were pronounced dead at the scene.
Investigators say they were thrown from the mangled truck and were not wearing seatbelts.
Her youngest, a 5-year-old boy, was taken to Dell Children's Medical Center along with Ambrez’s 13-year-old niece. Ambrez was also transported to a nearby hospital.
On the side of the white Line Tech Incorporated truck, it reads the vehicle is a contractor for Bluebonnet Electric. Troopers say, per Texas law, the driver will have to take a drug test.
"Be as safe as possible. Make sure everyone’s buckled up and you're driving the speed limit," Barrera said.
The speed limit in the rural area is 60 miles per hour.
We looked into the history of these two FM roads. According to TxDOT statistics, last year there was one crash at the southbound side where 812 and 973 meet. There were five crashes on the northbound end, the same site as Thursday's fatal incident.
Investigators say there was no evidence at the scene to indicate drugs played a role. They’re still trying to determine if speed was a factor in the deadly crash.