La Porte, TX – Drivers in Harris County are facing major delays today after a heavy-duty truck overturned on SH-146 northbound at Fairmont Parkway, leading to a full highway closure.
According to the Harris County Sheriff’s Office, the single-vehicle crash occurred just after W. Main Street and resulted in a HazMat spill and significant damage to a concrete barrier. Emergency crews, including La Porte police and EMS, quickly arrived on scene.
Traffic cameras showed multiple fire trucks, law enforcement vehicles, and HazMat responders blocking all northbound lanes while working to contain the spill. Authorities have urged drivers to avoid the area and seek alternate routes until the roadway is cleared.
The incident has caused backups stretching several miles as crews assess the hazardous material and work to remove the damaged truck. Officials have not yet released details on potential injuries or the estimated timeline for reopening the highway.
The closure impacts commuters traveling between La Porte, Deer Park, and surrounding areas in southeast Harris County. Motorists heading toward the Houston Ship Channel region are advised to allow extra time or use detours to minimize delays.
Authorities continue to investigate the cause of the crash. Updates will be provided as more information becomes available.
