14-Year-Old Passenger Dies After Union City Box Truck Collision

What Reporting Citing Police Says Happened

Reporting citing the Union City Police Department says a silver Mazda sedan and a commercial box truck collided at approximately 8:05 a.m. on September 11 at Alvarado-Niles Road and Decoto Road.

The 14-year-old girl was seated in the Mazda’s front passenger seat. She was hospitalized with life-threatening injuries and later died, according to subsequent local reporting.

What Has Not Been Determined Publicly

The reports reviewed for this article do not provide a final fault finding or state whether any citation or criminal charge is expected. The collision should not be treated as proof that any one driver or company was responsible.

When a commercial box truck is involved, the investigation may include vehicle data, driver records, maintenance records, camera footage, visibility, intersection movements, and witness accounts.

Why Early Evidence Preservation Matters

Traffic and business video can be overwritten. Vehicle condition can change after towing or repair. Families may benefit from promptly preserving reports, scene evidence, vehicle data, and insurance information while the official investigation continues.