A crash hit FM 521 Road at Sienna Parkway in Rosenberg around 6:25 this morning on Friday, September 11, backing up traffic as drivers headed into the workday. Authorities responded to the scene and worked to clear the roadway, though exact lane closure details and injury information weren't immediately available.
This intersection is running hot right now. According to LocalTrafficAccidents.com data, FM 521 at Sienna Parkway has logged 25 incidents in the past 30 days—24 of them major accidents. Over the past 90 days, the corridor shows 49 total incidents, with 45 rated major. Fridays have been the worst day of the week here, with 10 incidents recorded over the past three months.
The timing pattern at this location is scattered. While the single busiest hour is 12 to 1 AM with 5 crashes, incidents occur at varied times throughout the day rather than concentrating in one rush-hour window. That means you can't rely on avoiding a particular time—crashes happen around the clock.
In Fort Bend County overall, there were 1,109 incidents in the past 30 days with no fatalities recorded. The 25 incidents at this one intersection represent a notable concentration within the county's traffic picture.
Historically, per TxDOT CRIS public crash records, this corridor has seen 4 crashes since January 2020 with no fatalities. Contributing factors recorded by investigating officers show "Animal On Road - Wild" as the leading factor, cited in 1 crash. The data also shows Nissan as the most common vehicle make involved in crashes here.
Early Friday morning, skies were clear and temperatures sat at 77 degrees—good visibility conditions at the time of this crash. Once authorities cleared the roadway, traffic should have returned to normal flow. If you're heading out to FM 521 this morning, expect residual delays and give yourself extra time.
Update (2:30 PM CT): The major crash at Fm 521 Road at Sienna Pkwy, Rsh, TX, first reported at 6:25 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 11, 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.