A major crash shut down the northbound West Sam Houston Tollway at Memorial Drive around 1:50 AM on Saturday, September 19, creating a significant backup in the pre-dawn hours.
Responding officers found multiple vehicles involved in the collision. The northbound lanes were completely blocked as crews worked to clear the wreckage and assess the situation. Traffic was forced to divert while the scene was being managed, adding travel time for drivers on an already congested corridor.
This crash is the latest in a persistent pattern at this location. According to LocalTrafficAccidents.com data, the West Sam Houston Tollway northbound at Memorial Drive has seen 21 incidents in the past 30 days, with 14 classified as major. Over the past year, the corridor has recorded 213 total incidents, including 127 major crashes and 3 fatal incidents.
The timing of this crash—early Saturday morning—falls outside the corridor's peak window. LTA data shows the single busiest hour at this location is 7-8 AM, when six crashes occurred in recent weeks, though incidents here occur at varied times rather than concentrating in one narrow window.
Per TxDOT CRIS public crash records, the broader West Sam Houston Tollway northbound area near Memorial Drive has recorded 918 crashes since January 2020. Contributing factors as recorded by investigating officers show "Failed To Control Speed" as the leading factor, cited in 321 crashes at this corridor. The hit-and-run rate in the area stands at 7.3%, with 142 hit-and-run incidents among 1,957 units involved in crashes over that period.
Weather conditions at the time of the crash were favorable—broken clouds and 77 degrees—so adverse conditions did not appear to be a factor in this incident.
The exact clearance time was not immediately available. Drivers heading northbound on the West Sam Houston Tollway during early Saturday morning should expect delays and consider alternate routing until the scene is fully cleared and lanes reopen.
Sources: TxDOT Crash Records Information System and Local Traffic Accidents database. Counts through September 19, 2026.
West Sam Houston Tollway Northbound at Memorial Dr
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.