A major crash brought southbound traffic on I-45 North to a standstill Thursday evening at 6:41 PM near the SH 249 and Mount Houston Road interchange. The collision occurred during the height of the evening commute, snarling traffic across multiple lanes in one of Houston's busiest corridors.
The timing couldn't have been worse for south-bound commuters trying to escape the north end of the metro area. Drivers heading toward downtown Houston faced significant delays, with backup extending well beyond the immediate crash zone. The best bet for those caught in the mess was to bail out onto local roads—heading west on Mount Houston Road toward Studemont or diverting north on SH 249 toward Greens Road offered some relief. FM 1960 to the south also absorbed overflow traffic as the main artery choked up.
This intersection marks a particularly troublesome stretch of I-45 North. Over the past 90 days, the southbound corridor at Mount Houston Road has logged 13 total incidents, with 9 classified as major. The concentration of wrecks here reflects the road's nature as a crucial merge point where the SH 249 feeder system intersects with the main northbound and southbound lanes. Heavy truck traffic, frequent lane changes, and the complexity of the interchange geometry create a recipe for serious collisions.
The crash blocked southbound lanes during peak evening travel time, when thousands of commuters funnel onto I-45 from the north Houston communities heading toward downtown and points south. Recovery crews worked to clear the scene, though the incident's impact rippled across the entire corridor for hours. Drivers should anticipate lingering congestion even after initial lanes reopen, as traffic patterns normalize slowly following major incidents at this location.
Going back a month from this incident, 12 crashes had been recorded at the location.
After this incident, 96 more crashes have been logged at the location. Major collisions accounted for 79 of those incidents.
Incidents at this location have arrived at a faster clip since.
A short window saw several crashes at the location.
The combined count puts this stretch in the top tier for crashes in the area.
Data current as of May 29, 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.