Major Traffic Jam Caused by Five-Vehicle Crash

Traffic Collision on State Route 57 in Diamond Bar Causes Significant Delays Today

📍 Diamond Bar, CA

📅 Published: June 22, 2025 at 06:41 PM

🔄 Updated: June 22, 2025 at 07:30 PM

Map showing the location of the accident in Diamond Bar, CA
Diamond Bar, June 22, 2025 -

A traffic collision occurred today on State Route 57 North at the interchange with State Route 60 East in Diamond Bar, CA, involving five vehicles: a white sedan, a black Jeep, a white Volkswagen Jetta, a grey Volkswagen, and an unknown vehicle. The incident took place during the evening rush hour, leading to significant traffic delays and congestion in the area.

As a result of the collision, multiple lanes, including the High-Occupancy Vehicle (HOV) lane, were blocked, causing backups for motorists navigating through this busy interchange. Emergency response teams, including several law enforcement units, arrived quickly to manage the scene and direct traffic. Towing services were requested to assist with the removal of the vehicles involved in the crash.

Witnesses noted that one vehicle deployed airbags, indicating the seriousness of the incident. Traffic management efforts were implemented to facilitate the flow of vehicles and minimize disruption. Motorists were advised to seek alternate routes to avoid delays while crews worked to clear the roadway.

This traffic incident underscores the importance of safe driving practices, especially during peak travel times. Updates will be provided as the situation develops and the roadway is cleared.

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