Major Collision Blocks HOV Lane on SR-57

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

📍 Diamond Bar, CA

📅 Published: June 25, 2025 at 07:34 PM

🔄 Updated: June 25, 2025 at 08:32 PM

Map showing the location of the accident in Diamond Bar, CA
Diamond Bar, June 25, 2025 -

A traffic collision involving three vehicles occurred today on State Route 57 North near Diamond Bar Boulevard in Diamond Bar, CA. The incident involved a Ford Fusion, a blue Tesla, and a white pickup truck, which resulted in the High-Occupancy Vehicle (HOV) lane being blocked. This blockage caused significant traffic delays and congestion in the area during the evening commute.

Emergency response teams, including the California Highway Patrol (CHP), arrived promptly to manage the situation. Traffic management efforts were initiated to ensure the safety of all motorists while clearing the roadway. A tow truck was arranged for one of the vehicles that required towing, while another vehicle was determined to be drivable.

By 7:47 PM, the roadway was cleared, allowing traffic to resume normal flow. However, motorists should remain cautious as residual delays may persist due to the earlier incident.

This traffic incident underscores the importance of safe driving practices and the need for quick emergency response to minimize traffic disruptions. Drivers are encouraged to stay alert and adhere to traffic regulations to prevent similar accidents in the future.

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