A major motor vehicle incident at the intersection of Grissby Road and 399 South SH 6 disrupted traffic Friday afternoon. The crash occurred at 2:31 PM on May 22, 2026, during what's typically an off-peak window for Harris County commuters.
This intersection sits in a corridor with an alarming pattern. According to LocalTrafficAccidents.com data, Grissby Road and SH 6 has logged 46 incidents in the past 30 days—32 of them major. Over the past 90 days, the intersection has seen 91 total incidents, including 3 fatal crashes. The afternoon 2 PM–3 PM window where this crash occurred is the most active hour here, with 9 incidents recorded in that single hour over the past three months.
The timing is notable. While this intersection experiences major crashes year-round—Thursdays historically record the most incidents at this location, with 16 in the past 90 days—Friday afternoons have proven volatile as well. The 2:31 PM timing places this incident directly in the corridor's peak crash window, even outside typical rush hour traffic.
At the time of the incident, conditions were clear—broken clouds and 89 degrees. The road surface wasn't a factor.
Emergency responders were called to manage the incident and clear the roadway. Specifics on vehicle count, injury status, and lane closure duration aren't yet available from Harris County incident data.
Drivers in this corridor know the friction points. This intersection accounts for a disproportionate share of Harris County's 19,531 incidents logged in the past 30 days. Even on an off-peak Friday afternoon, when traffic volumes drop, crashes here continue at a pace that stands out across the 13-county region.
If you were heading through this area Friday afternoon, you felt the backup. If you're planning to use this intersection regularly, understanding its history—and the highest-risk windows—matters for route planning.
Update (10:35 PM CT): The major crash at GRISBY RD @ 399 S SH 6, first reported at 2:31 PM, 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 October 1, 2026.
Going back a month from this incident, 43 crashes had been recorded at the location.
138 more crashes have been recorded at this location in the time since. Major collisions accounted for 98 of those incidents.
Crashes have slowed at this location since this crash.
A stretch of consecutive days brought several crashes to this location.
Taken together, the counts place this stretch in the upper tier for crashes locally.
Data current as of October 01, 2026.
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.