Major Traffic Disruptions on State Route 57

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

📍 Diamond Bar, CA

📅 Published: May 31, 2025 at 12:06 PM

🔄 Updated: May 31, 2025 at 01:01 PM

Map showing the location of the accident in Diamond Bar, CA
Diamond Bar, May 31, 2025 -

A traffic collision on State Route 57 North in Diamond Bar, CA, has led to significant traffic disruptions today. The incident, which involved three vehicles—a white Tesla, a black Ford SUV, and an unidentified vehicle—occurred during the late morning hours, impacting the flow of traffic during a busy time for commuters.

As a result of the traffic incident, the high-occupancy vehicle (HOV) lane has been coned off, creating slow lane conditions and potential delays for drivers in the area. Emergency response units have been dispatched to manage the scene and control traffic flow, ensuring safety for all motorists.

A tow truck has been called to assist with the removal of one of the vehicles involved in the collision, which is expected to further impact traffic as the situation is resolved. Motorists are advised to exercise caution and anticipate possible backups as crews work to clear the roadway.

Drivers traveling through this section of State Route 57 North should plan for delays and consider alternate routes to avoid congestion. The California Highway Patrol is on the scene to facilitate traffic management and ensure a swift resolution to the traffic incident.

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