Overview
- A semi-truck traveling eastbound reportedly jackknifed, breached the concrete center divider and struck westbound vehicles on the 210 Freeway near Irwindale Avenue, in a crash that occurred Saturday morning and forced an emergency response.
- One woman was pronounced dead at the scene and authorities have not released her identity pending next-of-kin notification.
- The truck driver remained at the scene and is cooperating with investigators as CHP inspects the big rig and gathers vehicle data and surveillance or dashcam footage.
- Emergency crews closed all westbound lanes and multiple eastbound lanes, creating miles of backups and prompting a SigAlert while tow and recovery teams cleared the wreckage.
- Investigators are examining possible causes common to large-truck wrecks—excessive speed, mechanical failure, driver error, road or weather conditions, or a medical emergency—and will review maintenance records, driver logs and electronic vehicle data as the probe continues.