A major crash closed IH-45 northbound at SH-249/Mount Houston Road early Sunday, September 20, 2026, around 4:38 AM. Responding officers worked to clear the wreckage and reopen the northbound lanes.
The incident hit at a location that's seen persistent crash activity. According to LocalTrafficAccidents.com data, this stretch of IH-45 recorded 21 incidents over the past 30 days, with 15 classified as major. Over a 90-day window, the corridor logged 54 total incidents, 41 of them major. The pattern extends further back: in the 12 months prior to this crash, state and local records documented 96 incidents at this location, 69 of them major.
Looking at the broader historical picture, per LTA's proprietary database, the area within three-quarters of a mile of this location recorded 48 crashes in the 30 days immediately before this incident.
Sundays prove to be the busiest day for crashes at this location. Per LTA data, Sundays account for 13 incidents in the past 90 days — more than any other day of the week. The timing pattern here is notably different from typical freeway corridors: most crashes fall outside the weekday commute peaks, with the single busiest hour running from 1 to 2 PM.
State crash records from the Texas Department of Transportation show this corridor has a consistent pattern in how crashes occur. Contributing factors as recorded by the investigating officer show "Failed To Control Speed" as the leading factor, cited in 252 crashes since January 2020. The same state data documents 605 total crashes within roughly a quarter-mile of this location since 2020, including 8 fatalities.
Weather wasn't a factor in this incident — conditions at the time were clear with temperatures around 76 degrees.
If you're heading northbound on IH-45 through this area, Hardy Toll Road, SH-249 (northwest), or local routes via Airline Drive offer alternatives. Check current conditions before choosing your route, as Sunday morning traffic patterns can shift quickly even in off-peak hours.
Update (6:30 AM CT): The major crash at IH-45 North Northbound at SH 249 at Mount Houston Road, first reported at 4:38 AM, has cleared after approximately 1 hour and 52 minutes. All lanes have reopened and normal traffic flow has resumed in the area.
Sources: TxDOT Crash Records Information System and Local Traffic Accidents database. Counts through September 20, 2026.
IH-45 North Northbound 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.