A crash left the left shoulder blocked on the northbound Sam Houston Tollway at SH-249 Tomball Parkway on Wednesday, October 21, 2026, around 4:19 PM, according to Houston TranStar.
This stretch of the tollway has seen significant crash activity over the past year. According to LTA real-time incident data, 12 crashes occurred here in the past 30 days alone—11 of them major incidents. Over 90 days, the corridor recorded 51 total crashes, with 45 rated as major.
The location has been a frequent site of collisions. State crash records from the Texas Department of Transportation show 1,241 crashes within about a quarter-mile since January 2020, including 3 fatalities. Contributing factors as recorded by the investigating officer, per TxDOT CRIS, show "Failed To Control Speed" as the leading factor, cited in 516 crashes at this corridor.
Thursdays have been the busiest day at this location historically, with 10 incidents logged over the past 90 days. Crashes here occur at varied times rather than concentrating in a single window, though 7 to 8 AM ranks as the single busiest hour.
If you're heading toward Tomball Parkway, consider using Kuykendahl Road or Stuebner Airline as alternates. Conditions were clear at the time of the incident, with temperatures around 84 degrees.
Sources: TxDOT Crash Records Information System and Local Traffic Accidents database. Counts through October 21, 2026.
North Sam Houston Tollway Eastbound at SH-249 Tomball Parkway
Harris County, Texas
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.