An 18-wheeler collision brought southbound traffic to a halt on US-59 at Buffalo Speedway on Monday, April 06, 2026, at 7:29 PM, creating a significant backup during the tail end of the evening commute. Emergency crews responded to find the big rig blocking multiple lanes of the major corridor, forcing authorities to close the southbound direction entirely while they worked to clear the scene and assess the damage.
The closure came at a particularly problematic time for commuters heading out of the central Houston area. Drivers attempting to move south on US-59 faced a complete standstill, with traffic backing up toward the Medical Center and beyond. Those heading toward Pearland and points south should have shifted to alternate routes immediately—US-77, the frontage roads paralleling US-59, or local surface streets through Braeswood and the Greenway area offered the best escape routes. Even with those alternatives, spillover traffic would have clogged connecting corridors as drivers diverted away from the main highway.
The US-59 South and Buffalo Speedway intersection sits in a densely traveled stretch of Harris County that has become a persistent trouble spot. In the past 30 days alone, this location has logged 48 total incidents, with 26 classified as major. The corridor routinely handles heavy traffic from the Medical Center complex, commercial vehicles heading to distribution centers south of the city, and commuters traveling between downtown and the Fort Bend suburbs. High-speed merge conflicts combined with the volume of 18-wheelers using this route have made it a recurring flashpoint for serious collisions.
The southbound direction of US-59 remained closed through the evening as crews worked the scene. Drivers in the area needed to remain alert for emergency vehicles and potential debris scattered across the roadway. Recovery of the tractor-trailer likely required specialized heavy-duty towing equipment, which would have extended the closure window into the night. Anyone who had planned to travel south on US-59 in this area should have checked traffic conditions before heading out, as delays extended well beyond the immediate incident location due to the upstream backup of vehicles seeking alternate routes.
Looking at the 30 days before this crash, the location had documented 47 incidents.
The location has seen 75 additional incidents since this crash. Major-severity crashes accounted for 38 of those incidents.
The rate of crashes hasn't shifted much since this incident.
A cluster of those crashes happened within roughly two weeks.
Together, the incidents make this stretch one of the most active in the county.
Data updated as of May 24, 2026.
This report was produced by LTA's editor-designed production system under the executive editorial direction of Dennis R. Mundy, Executive Editor. The system combines our proprietary data pipeline with AI-assisted drafting to deliver verified incident coverage to LTA's editorial standards.