A motor vehicle incident closed the southbound US 59 inbound-to-IH 610 inbound ramp at Chimney Rock at 6:16 AM on Monday, May 04, 2026. The incident was classified as major severity.
The crash occurred at a location that has become a consistent source of traffic disruption in Harris County. According to LocalTrafficAccidents.com data, the US 59 southbound-to-IH 610 inbound ramp at Chimney Rock intersection recorded 35 incidents over the past 30 days—a rate that places it in the extreme category for corridor heat. Over the same 30-day window, one fatal incident occurred at this location.
The broader pattern is more severe when viewed across a longer timeframe. In the past 90 days, LTA data shows 155 total incidents at this corridor, including 74 major incidents and 4 fatal crashes. Over a 12-month period, the location has recorded 158 total incidents with 75 major and 4 fatal.
Rush hour traffic carries particular weight at this location. Forty-six percent of the 90-day incident count at this ramp occurred during morning and evening peak hours, indicating that commuter volumes correlate with higher incident frequency. The peak crash hour across the 90-day window was 4 PM to 5 PM, which recorded 17 incidents. Tuesdays have been the highest-incident day over 90 days, with 23 recorded incidents.
Monday's 6:16 AM incident, however, fell outside the typical peak crash window at this location. The dominant incident pattern at this ramp is offpeak, suggesting that non-rush-hour periods also carry significant risk.
Weather conditions at the time of the incident were clear, with a temperature of 64°F.
Harris County recorded 19,108 total incidents in the past 30 days, including 39 fatal crashes, according to LTA tracking across the 13-county Houston-Galveston region.
The incident's impact on the inbound-to-inbound ramp connection during the morning commute window added to congestion on a corridor already marked by high incident frequency. The specific nature of the ramp configuration—a freeway-to-freeway connection—limits alternate routing options during blockages.
LTA tracks approximately 68,456 incidents across the 13-county region with updates every two minutes. Additional incident data is published annually by TxDOT through the CRIS (Crash Records Information System) database.
34 crashes had already been logged here in the month before this incident.
92 additional crashes have been logged at the location in the weeks since. Among them, 42 were major crashes.
The rate of incidents has risen in the period since this crash.
A cluster of those crashes happened within roughly two weeks.
That combined total ranks the location high among county incident sites.
Counts are current through July 08, 2026.
SUS59IB-IH610IB RAMP S US 59 FWY @ CHIMNEY ROCK ENTR 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.