Major Traffic Disruption on State Route 57

Traffic Collision on State Route 57 South in San Dimas Causes Delays Today

📍 San Dimas, CA

📅 Published: August 29, 2025 at 09:02 AM

🔄 Updated: August 29, 2025 at 10:31 AM

Map showing the location of the accident in San Dimas, CA
San Dimas, August 29, 2025 -

A traffic collision involving two vehicles, including a semi truck and an overturned vehicle, occurred today on State Route 57 South near Via Verde in San Dimas, CA. The incident was reported during the morning commute, leading to significant traffic disruptions as lanes 2 and 3 were initially blocked.

Emergency response teams quickly arrived at the scene to manage traffic and ensure safety. Towing operations were initiated for the overturned vehicle, which was obstructing the roadway. By 8:35 AM, all lanes were reopened, allowing traffic to resume its normal flow.

Motorists traveling on State Route 57 South experienced delays and congestion as the incident unfolded, particularly during peak travel hours. The California Highway Patrol coordinated with local agencies to effectively manage the situation and minimize disruptions for drivers.

The swift actions of emergency responders played a crucial role in clearing the scene and restoring traffic flow. This traffic incident serves as a reminder for drivers to remain vigilant while navigating busy roadways, especially during high-traffic times.

Overall, the prompt response and management of the traffic collision helped alleviate the impact on commuters, allowing for a return to normal conditions on State Route 57 South.

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