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US-290 northwest westbound shut at Mason after major crash

September 17, 2026 at 04:57 AMBy Dennis R. Mundy, Executive Editor📍 Harris County

A major crash on US-290 northwest westbound at Mason early Thursday morning has shut the roadway and backed up traffic as crews work to clear the scene.

The crash happened at 4:57 AM on September 17. Responding officers worked to clear the wreckage and reopen the westbound lanes. Visibility was reduced to 2.6 miles under overcast skies at the time of the incident, conditions that can complicate driver response and increase collision risk on high-speed corridors.

US-290 northwest westbound between Mason and the surrounding area is an active crash corridor. According to LocalTrafficAccidents.com data, nine crashes have hit this stretch in the past 30 days—all classified as major incidents. Over the past 12 months, 19 crashes have occurred at this location, with 14 rated as major. The corridor sees the highest incident frequency on Thursdays, with four crashes recorded on that day over the past 90 days.

If you're heading northwest on 290, consider using FM 1960 or Cypress-Rosehill Road for alternate routing. Drivers on inner segments have the option of Hempstead Road as an alternate.

According to TxDOT CRIS public crash records, the corridor near this location has recorded 425 crashes since January 2020. Contributing factors as recorded by investigating officers show "Failed To Control Speed" as the leading factor, cited in 138 crashes. The hit-and-run rate in the corridor stands at 5.1 percent across all involved units.

Check traffic conditions before heading out on 290 this morning. Crews were still working to fully clear the scene in the early hours.

📊 Accident History at US-290 Northwest Westbound at Mason

LTA incident record
Past 30 days9 incidents (9 major)
Past 90 days11 incidents (9 major)
Past 12 months19 incidents (14 major)
TxDOT crash record
Since January 2020425 crashes

Sources: TxDOT Crash Records Information System and Local Traffic Accidents database. Counts through September 17, 2026.

📍 Incident Location

US-290 Northwest Westbound at Mason

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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