Major Traffic Disruption on State Route 60

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

📍 Diamond Bar, CA

📅 Published: July 5, 2025 at 12:02 AM

Map showing the location of the accident in Diamond Bar, CA
Diamond Bar, July 4, 2025 -

A traffic collision involving two vehicles occurred today on State Route 60 East near Grand Avenue in Diamond Bar, CA. The incident, which involved a blue Toyota Rav4 and a black Nissan, was reported at approximately 11:09 PM. One of the vehicles was rendered not drivable, blocking the high-occupancy vehicle lane.

As a result of the collision, traffic was significantly impacted, leading to lane closures on the HOV lane. Motorists experienced delays and congestion as California Highway Patrol (CHP) units arrived at the scene to manage traffic and secure the area. A tow truck was called to remove the disabled vehicle from the roadway.

By 11:46 PM, CHP reported that the roadway was cleared, although vehicles remained on Grand Avenue just south of State Route 60. The incident caused a backup in traffic, affecting evening travelers in the area.

Drivers are advised to remain cautious and expect potential delays as traffic resumes to normal conditions. The CHP continues to monitor the situation to ensure safe passage for all motorists.

For those traveling through Diamond Bar, CA, it is always wise to check traffic updates and plan accordingly to avoid any unexpected delays.

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