Troopers say the accident happened just before 7:00 a.m. on Highway Six just over the Brazos County line.
According to the Department of Public Safety, 20-year-old Chelsea Larsen was driving her Toyota sedan northbound on Highway 6 in between Hearne and Bryan when she began veering off to the right side of the road.
As she tried to get back in her lane, she over-corrected and ended up in the southbound lane in the path of a tractor trailer.
The truck broadsided Larson's vehicle. DPS reports that she was wearing a seatbelt, however she was ejected and died upon impact.
The driver of the semi-tractor trailer was not injured.