A major crash at I-45 South and West Cavalcade Street brought morning traffic to a standstill Thursday. The collision happened at 8:37 AM, snarling the southbound lanes during the tail end of the commute rush.
Responding officers cleared the scene, but the backup extended well into the afternoon as crews worked to reopen the affected lanes. Commuters heading south through this part of Harris County faced significant delays as traffic queued back toward the interchange.
This crash is part of a broader pattern at this location. According to LTA data, I-45 South and West Cavalcade has seen 37 incidents in the past 30 days—27 of them major crashes like today's. Over the past 90 days, the corridor logged 96 total incidents, with 55 classified as major. That intensity underscores how volatile this stretch has become for everyday commuters.
The timing pattern here is worth noting: while crashes occur throughout the day at varied hours, the single busiest period is 3 to 4 PM, when eight crashes happened during the past month. This morning's 8:37 AM incident falls outside that peak window, meaning backups can erupt at almost any time.
Historically, according to TxDOT CRIS public crash records, this corridor has recorded 846 crashes since January 2020, with 3 fatalities. The most frequently cited contributing factor by investigating officers is "Failed To Control Speed," documented in 364 of those crashes. Nearly 11.2 percent of incidents at this location involved hit-and-run drivers.
Weather at the time of today's crash was overcast with temperatures around 84 degrees—no rain or visibility issues that would have compounded the dangers. The road surface was dry.
If you're heading southbound through this area, expect delays to persist through the midday period. Once the scene clears, traffic should begin to normalize, though the volume on I-45 South typically doesn't ease much until well into the afternoon. Check real-time traffic apps before you head out, and consider alternate routes if your schedule allows flexibility.
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.