A major crash occurred on IH-45 North southbound at SH 249/Mount Houston Road at 4:50 AM on Sunday, April 26, 2026. The incident blocked travel during the early morning hours in Harris County.
According to LocalTrafficAccidents.com data, this location has logged 14 major incidents over the past 30 days, placing it in a high-incident corridor classification. Over a 90-day period, the same stretch has recorded 25 major crashes, with the dominant incident pattern occurring outside rush hours. The 4 AM–5 AM window represents the corridor's peak crash hour, with three incidents documented in that timeframe over the past quarter.
The crash occurred during off-peak conditions on a Sunday morning when traffic volumes are typically lighter. However, the persistent incident count at this IH-45 North southbound location underscores a documented pattern of instability independent of time of day or day of week. While Thursdays record the highest incident frequency at this location (six incidents in 90 days), crashes occur regularly across the week.
Weather conditions at the time of the crash were broken clouds and 76°F—clear and mild conditions that did not present visibility or traction hazards.
Harris County recorded 18,339 total incidents in the past 30 days, including 38 fatalities, according to LTA tracking across the 13-county Houston-Galveston region.
Drivers requiring alternate routing from IH-45 North southbound were directed to the Hardy Toll Road, SH-249 (northwest), or local routes via Airline Drive, depending on destination and travel direction.
The IH-45 North corridor near Mount Houston Road has experienced sustained incident activity. While 62 percent of crashes at this location occur outside traditional rush hours, the concentration of incidents during the overnight window (4 AM–5 AM) suggests time-specific risk factors that extend beyond commute-period congestion. The location merits continued operational monitoring.
Incident details including vehicle count, occupancy, and lane closure duration were not provided by dispatch data at report time.
Before this incident, the location logged 13 crashes over the prior 30 days.
Since then, the location has recorded 24 additional crashes. 21 of those incidents were major.
The recent run shows crashes coming slower than before.
Several of the crashes occurred back-to-back within days of each other.
Together, the incidents make this stretch one of the most active in the county.
Counts reflect data through July 07, 2026.
IH-45 North Southbound at SH 249/ Mount Houston Rd
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.