A major crash shut down southbound I-45 at the Cullen exit ramp at 1:25 AM on Monday, August 24, snarling traffic in the predawn hours and raising questions about this particular stretch of freeway.
Responding officers worked to clear the debris and reopen lanes. The crash added to an already troubling pattern at this location. Over the past 30 days, LocalTrafficAccidents.com data shows 44 incidents here, including 18 major crashes. Zoom out to the past 90 days, and the numbers spike to 157 total incidents, with 78 classified as major.
This isn't a new problem. Since January 2020, state crash records show 1,114 crashes within about a quarter-mile of this exit ramp, including six fatals. According to TxDOT CRIS public crash records, the most frequently recorded contributing factor at this location is "Failed To Control Speed," cited in 450 crashes over that period.
Mondays are especially busy here. LTA data shows Mondays have seen 20 incidents at this location over the past 90 days—the highest count for any single day. The timing pattern at this corridor differs from typical commute corridors: most crashes occur outside the weekday rush hour peaks, with the single busiest hour falling between 9 and 10 PM, when 14 crashes have occurred.
The early-morning timing of this crash—1:25 AM—falls outside the peak window but is consistent with the location's overall pattern of activity throughout the day and night.
Despite clear weather conditions at the time of the crash (broken clouds, 81°F), the underlying data from this corridor paints a picture of persistent collision risk. For context, Harris County logged 18,025 incidents overall in the past 30 days, with 18 fatals. This single exit ramp has accounted for a disproportionate share of major crashes.
If you drive this stretch of I-45 regularly, the statistics speak for themselves. The road's been open since the incident cleared, but the data suggests Monday mornings and late evenings warrant extra caution here.
**Update (9:25 AM CT):** The major crash at SIH45OB-SCOTT 3570 S IH 45 FWY @ CULLEN EXIT RAMP, first reported at 1:25 AM, has cleared after more than 8 hours. All lanes have reopened and normal traffic flow has resumed in the area.
SIH45OB-SCOTT 3570 S IH 45 FWY @ CULLEN EXIT RAMP
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.