A major crash on SH-249 Tomball Parkway southbound at the North Sam Houston Tollway intersection closed lanes at 8:42 AM on Tuesday, April 28, 2026, disrupting morning commute traffic in Harris County.
According to LocalTrafficAccidents.com data, the collision occurred at a location with an extreme 30-day incident count of 44 crashes. Over the past 90 days, the same intersection has logged 73 total incidents, with 62 classified as major. The concentration of crashes at this location far exceeds typical corridor patterns across the 13-county Houston-Galveston region.
The incident struck during the morning commute window. LTA analysis shows that 36% of crashes at this intersection occur during rush hour periods, indicating heightened collision risk when traffic volumes peak. Data from the past 90 days reveals Wednesday as the highest-incident day at this location, with 16 crashes recorded. The peak crash hour across a typical week is 3 PM to 4 PM, when 10 crashes were logged.
Drivers traveling the SH-249 corridor should consider Kuykendahl Road or Stuebner Airline as alternate routes during heavy traffic periods, based on available routing data.
Harris County recorded 18,476 total incidents over the past 30 days, including 40 fatalities. The county remains a high-incident jurisdiction within the broader Houston-Galveston region, where LTA tracks approximately 64,270 incidents monthly with updates every two minutes.
Weather conditions at the time of the crash were broken clouds with temperatures at 82 degrees Fahrenheit — clear conditions that did not contribute to visibility or surface hazards.
The dominant incident type at this intersection over the past 90 days is crash, consistent with the morning's incident classification. The pattern reflects sustained collision activity rather than isolated events at this location.
In the month preceding this crash, 43 incidents had been documented here.
Since this crash, the location has tallied 171 additional incidents. 124 of the subsequent crashes were classified as major.
Crashes have slowed at this location since this crash.
A cluster of those crashes happened within roughly two weeks.
Combined, those incidents make this one of the highest-volume crash locations in the area.
Counts reflect data through August 14, 2026.
SH-249 Tomball Parkway Southbound at North Sam Houston Tollway
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.