A major crash brought traffic to a standstill on I-45 southbound at the Cullen exit ramp early Thursday morning. The wreck happened at 5:41 AM, though it struck during an unusually light traffic window — the corridor doesn't peak until later in the day.
The crash tied up the southbound main lanes during early commute traffic. Responding officers worked to clear the wreck and reopen the roadway. No information on vehicle count or injuries was immediately available.
This crash adds to a persistent pattern at this location. According to LocalTrafficAccidents.com data, the I-45 southbound corridor at Cullen has logged 39 incidents in the past 30 days alone — 14 of them major. Over the past 90 days, the corridor has seen 155 total incidents, with 76 classified as major. That's a significant concentration of crashes in a relatively short stretch.
The timing pattern here is unusual: while the single busiest hour is 4–5 PM, when 12 crashes occur, crashes happen throughout the day rather than clustering in one rush-hour window. Mondays see the highest incident count with 20 crashes over the past 90 days.
Looking at the broader context, TxDOT crash records since January 2020 show 1,114 crashes within about a quarter-mile of this corridor, with six fatalities. Contributing factors as recorded by the investigating officer, per TxDOT CRIS, show "Failed To Control Speed" as the leading factor, cited in 450 crashes. Hit-and-run incidents account for 12.9% of crashes here — 310 of the 2,396 units involved.
Harris County as a whole reported 17,107 incidents in the past 30 days, including 17 fatalities. This single exit ramp stretch represents a notable share of that countywide traffic burden.
The weather at the time — overcast skies and 82°F — was clear, so conditions were not a factor in this particular incident. The road should return to normal flow once the debris is cleared and lanes reopen. If you're heading southbound on I-45 this morning, expect delays in the Cullen exit area and allow extra travel time.
Update (1:45 PM CT): The major crash at SIH45OB-SCOTT 3570 S IH 45 FREEWAY at CULLEN EXIT RAMP, first reported at 5:41 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.
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.