A black Mercedes and a truck blocked traffic on the Katy Freeway at Blalock Road at 10:45 AM Friday, July 31, forcing crews to clear the wreckage during what should've been a mid-morning lull. The crash tied up multiple lanes and slowed westbound flow significantly before the road reopened.
The incident hit at one of the corridor's historically busiest windows. According to LocalTrafficAccidents.com data, the 10–11 AM hour sees more crashes here than any other time of day—nine incidents in the past 30 days alone. That pattern explains why a midday wreck causes real gridlock, even outside the traditional rush hour squeeze.
This crash adds to a mounting pattern at this location. In the past 30 days, Katy Freeway at Blalock has logged 40 incidents, 29 of them major, per LTA data. Expand that window to 90 days and the count reaches 103 incidents with 69 major. Over a full 12 months, the corridor has seen 203 incidents, 118 classified as major. Fridays are the single busiest day here—25 incidents in the past 90 days fell on Fridays.
State crash records paint a clearer picture of what's driving collisions here. Per TxDOT CRIS public crash records, the Katy Freeway at Blalock has recorded 1,180 crashes since January 2020. Contributing factors as recorded by the investigating officer show "Failed To Control Speed" as the leading cause, cited in 425 crashes. Hit-and-run incidents account for 8.0 percent of crashes at this location—195 of the 2,451 vehicles involved in crashes fled the scene.
Weather at the time of Friday's crash was overcast and 91 degrees—conditions that wouldn't typically explain the collision, though overcast skies can reduce visibility slightly. The roadway itself was dry.
Responding officers cleared the scene and both vehicles. No additional details on injuries or lane-closure duration are currently available. If you were headed westbound on the Katy around mid-morning Friday, you already know the backup was real. If you're planning to use this corridor, keep in mind the 10–11 AM window historically sees elevated incident frequency.
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.