Major Collision Disrupts Traffic on State Route 60

Traffic Collision on State Route 60 East in Diamond Bar Causes Delays Today

📍 Diamond Bar, CA

📅 Published: August 13, 2025 at 11:34 AM

Map showing the location of the accident in Diamond Bar, CA
Diamond Bar, August 13, 2025 -

A traffic collision on State Route 60 East in Diamond Bar, CA, has led to significant traffic disruptions today. The incident involved four vehicles, including a light blue pickup truck, a silver Chevrolet pickup truck, a silver Chevrolet Silverado, and a gray Chevrolet pickup truck. The Silverado and one of the pickup trucks are currently obstructing the High-Occupancy Vehicle (HOV) lane, resulting in lane closures and a break in the flow of traffic.

Emergency response units, including the California Highway Patrol (CHP), are actively managing the scene and directing traffic. As a result of the collision, motorists are experiencing delays and congestion, particularly in the Diamond Bar area. The CHP has requested a traffic break to facilitate the safe removal of the vehicles involved.

Drivers are advised to seek alternate routes to avoid the backup, as the situation is expected to impact traffic flow for an extended period. The CHP continues to monitor the situation and will provide updates as necessary. For those traveling on State Route 60 East in Diamond Bar, CA, it is recommended to stay informed about the traffic incident and plan accordingly.

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