Major Traffic Collision Disrupts Diamond Bar Commute

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

📍 Diamond Bar, CA

📅 Published: August 20, 2025 at 11:40 AM

Map showing the location of the accident in Diamond Bar, CA
Diamond Bar, August 20, 2025 -

A significant traffic collision occurred today on State Route 60 West at North Diamond Bar Boulevard in Diamond Bar, CA, causing major disruptions during the morning commute. The incident involved three vehicles: a white Chevrolet Silverado, a grey Honda, and a white Nissan NV200.

Emergency services, including traffic management units and fire department resources, quickly arrived on the scene to manage the situation. As responders worked to clear the area, three lanes were blocked, leading to considerable traffic backup and delays for motorists.

Tow services have been arranged for the involved vehicles, with at least one vehicle currently being towed from the scene. The traffic incident has resulted in congestion for drivers traveling through this busy corridor, particularly during peak travel hours.

Motorists are advised to seek alternate routes to avoid the affected section of the highway. Emergency responders are actively managing the situation to ensure safety and facilitate the clearing of the roadway.

As the situation develops, drivers are encouraged to remain cautious and patient. For those planning to travel on State Route 60 West in Diamond Bar, CA, it is recommended to monitor traffic updates and allow for extra travel time due to ongoing lane closures and potential delays.

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