Major Collision Causes Traffic Chaos in Diamond Bar

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

📍 Diamond Bar, CA

📅 Published: August 26, 2025 at 03:35 PM

🔄 Updated: August 26, 2025 at 04:32 PM

Map showing the location of the accident in Diamond Bar, CA
Diamond Bar, August 26, 2025 -

A traffic collision involving two vehicles occurred today at the intersection of State Route 57 North and State Route 60 East in Diamond Bar, CA. The incident took place around 2:58 PM, involving a white sedan and a black SUV. This collision resulted in multiple lanes being blocked, causing significant traffic congestion in the area.

Emergency response teams swiftly arrived on the scene to manage the situation. Traffic management units were deployed to control the flow of vehicles and alleviate delays. An all-lanes traffic break was implemented near the connector to facilitate the safe removal of the vehicles involved. A tow truck was called to assist with clearing the black SUV from the roadway.

By approximately 4:15 PM, the roadway was cleared, and traffic began to return to normal. However, motorists experienced delays and backups during the incident, particularly during the busy afternoon traffic hours. Drivers are advised to remain cautious and aware of potential residual congestion as the area returns to regular traffic flow.

This traffic incident underscores the importance of safe driving practices and the need for prompt emergency response to ensure the safety of all road users. For those traveling in Diamond Bar, CA, it is essential to stay updated on traffic conditions and plan accordingly.

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