A major crash at Dennis Street and Louisiana Street brought traffic to a standstill Friday morning around 7:18 AM, adding to what's already one of the city's most incident-prone intersections.
Authorities responded to the scene as commuters heading into work hit unexpected delays in the area. While clearing operations began immediately, the impact rippled through the immediate vicinity.
This intersection has become a consistent flashpoint for traffic incidents. According to LTA data, Dennis and Louisiana recorded 97 crashes in the past 30 days alone—47 of them major. Over the past 90 days, the numbers climb to 414 total incidents, with 201 classified as major. In the past 12 months, the intersection has seen 1,174 incidents including 616 major crashes and 16 fatalities.
The pattern here defies typical rush-hour expectations. While you'd expect the worst congestion during morning and evening commutes, LTA data shows crashes at Dennis and Louisiana actually skew toward weekends rather than weekdays. Sundays are the single busiest day over the past 90 days with 71 incidents recorded. Even more unusual—the absolute peak hour for crashes at this location falls between 2 and 3 AM, when the intersection has experienced 24 crashes.
Looking at a broader window, TxDOT CRIS public crash records show this corridor has seen 2,246 crashes since January 2020. Contributing factors as recorded by investigating officers, per TxDOT CRIS, show "Disregard Stop And Go Signal" as the leading factor, cited in 303 crashes at the location. Hit-and-runs account for 10.7 percent of incidents here—489 of the vehicles involved in crashes at Dennis and Louisiana.
Friday morning's incident arrived on a clear day with temperatures near 81 degrees, so weather wasn't a factor in this particular crash.
Harris County overall recorded 17,094 incidents in the past 30 days, including 17 fatalities. This single intersection's 97 incidents in the same window represent a significant concentration of the county's traffic trauma.
Authorities worked to clear the scene. Drivers in the area should expect residual delays and consider alternate routing if you're heading through the downtown corridor.
Update (3:20 PM CT): The major crash at DENNIS STREET at LOUISIANA STREET, first reported at 7:18 AM, has cleared after more than 8 hours. 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 12, 2026.
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.