Massive 10-Car Pileup Shuts Down 210 Freeway in San Dimas: Chaos and Injuries Reported

A High-Speed Collision Causes Traffic Nightmare

A chaotic multi-vehicle crash involving at least ten cars brought the 210 Freeway in San Dimas to a standstill Thursday morning, leaving emergency crews scrambling to assist injured drivers and clear the wreckage. Witnesses described a scene of twisted metal and shattered glass as vehicles collided in a chain-reaction accident near the Lone Hill Avenue exit.

Key Details of the Incident:

• Location: Eastbound 210 Freeway near San Dimas
• Time: Rush hour, around 7:45 AM
• Vehicles Involved: At least 10, including sedans, SUVs, and one commercial van
• Injuries: Multiple people transported to nearby hospitals with non-life-threatening injuries

Emergency Response and Traffic Impact

California Highway Patrol officers, along with Los Angeles County Fire Department units, responded within minutes. Paramedics treated victims on-site before rushing the most severely injured to Pomona Valley Hospital Medical Center. The eastbound lanes were completely shut down for over two hours, creating a miles-long backup that stretched past Glendora.

Possible Causes Under Investigation:

1. Sudden braking in heavy morning traffic
2. Distracted driving (cell phone use reported by witnesses)
3. Potential mechanical failure in one of the lead vehicles
4. Morning sun glare affecting visibility

What Do You Think?

• Should California implement stricter penalties for distracted driving in work zones?
• Are freeway speed limits too high for today's traffic volumes?
• Would mandatory driving refresher courses every 5 years reduce these accidents?
• Is the 210 Freeway's design partly to blame for frequent multi-car collisions?