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IH-10 eastbound major crash at John Ralston ramp

October 18, 2026 at 07:14 AMBy Dennis R. Mundy, Executive Editor📍 Harris County

A major crash closed lanes on Interstate 10 eastbound at the John Ralston entrance ramp around 7:14 AM on Sunday, October 18. Responding officers worked to clear the scene.

This stretch of I-10 eastbound near Mercury Drive has seen significant crash activity. According to LTA data, the corridor logged 52 crashes over the past 90 days, with 41 classified as major incidents. In the past 12 months, the location recorded 411 total crashes, 342 of them major.

The timing of crashes at this location varies throughout the day, though the busiest single hour is 9–10 AM, when five crashes occurred over the 90-day period, per LTA records.

TxDOT CRIS public crash records show that over the past six-plus years within about a quarter-mile of this location, "Failed To Control Speed" was the leading contributing factor cited by investigating officers, accounting for 313 crashes. Hit-and-run incidents made up 10.2 percent of all crashes in the corridor.

📊 Accident History at IH10IB-MERCURY 10305 E IH 10 FWY @ JOHN RALSTON ENTR RAMP

LTA incident record
Past 30 days10 incidents (8 major)
Past 90 days52 incidents (41 major)
Past 12 months411 incidents (342 major)
TxDOT crash record
Since January 2020748 crashes, 6 fatal

Sources: TxDOT Crash Records Information System and Local Traffic Accidents database. Counts through October 18, 2026.

📍 Incident Location

IH10IB-MERCURY 10305 E IH 10 FWY @ JOHN RALSTON ENTR RAMP

Harris County, Texas

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How This Report Was Produced

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.

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