Toll 49 18-Wheeler Crash Shuts Road, Hazmat, Serious Injury

**Serious Two-Vehicle Crash Shuts Down Toll 49 in Smith County; One Hospitalized**

SMITH COUNTY, Texas – A major two-vehicle collision on Toll 49 in Smith County on Wednesday, March 18, 2026, resulted in one person being transported to the hospital with serious injuries and the complete closure of the roadway for several hours. The crash, involving an 18-wheeler and another passenger vehicle, occurred near County Road 2185.

The incident led to a significant diesel spill, estimated at approximately 150 gallons, across the road surface. Hazardous materials (Hazmat) crews were dispatched to the scene to manage the extensive cleanup effort.

Emergency personnel from multiple agencies responded to the crash, including the Smith County Sheriff's Office ([https://www.smithcounty.com/government/sheriff](https://www.smithcounty.com/government/sheriff)), Texas DPS ([https://www.dps.texas.gov](https://www.dps.texas.gov)), the Texas Department of Transportation (TxDOT) ([https://www.txdot.gov](https://www.txdot.gov)), and Tyler Fire Department ([https://www.cityoftyler.org/departments/fire](https://www.cityoftyler.org/departments/fire)).

Officials indicated that Toll 49 was expected to remain closed for several hours while crews worked to clear the scene, contain the spill, and conduct an investigation into the cause of the collision. Motorists were advised to seek alternate routes.