Traffic Collision Causes Major Delays in San Dimas

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

📍 San Dimas, CA

📅 Published: August 28, 2025 at 08:05 AM

Map showing the location of the accident in San Dimas, CA
San Dimas, August 28, 2025 -

A traffic collision involving two vehicles occurred today at the interchange of State Route 57 South and State Route 71 South in San Dimas, CA. The incident was reported around 7:28 AM during the morning commute, with a silver Kia Optima confirmed as one of the vehicles involved. The other vehicle remains unidentified.

As a result of the collision, the silver Kia Optima sustained tire issues and required a tow truck at the scene. The incident led to significant lane blockages, causing traffic delays and congestion in the area. Emergency response teams, including traffic management units, were deployed to control the situation and facilitate the clearing of the roadway.

Motorists experienced backups as they navigated around the blocked lanes. Traffic management personnel worked diligently to ensure safe passage for vehicles while the scene was being addressed. By 8:12 AM, traffic management units had made progress in restoring normal traffic flow.

Drivers are advised to remain cautious and expect potential delays as the aftermath of the traffic collision continues to impact travel times. Authorities are actively working to resolve the situation and minimize disruptions for commuters.

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