Major Collision Causes Traffic Chaos on SR-60

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

📍 Diamond Bar, CA

📅 Published: June 12, 2025 at 09:33 PM

🔄 Updated: June 12, 2025 at 10:35 PM

Map showing the location of the accident in Diamond Bar, CA
Diamond Bar, June 12, 2025 -

A significant traffic collision occurred today on the eastbound lanes of State Route 60 (SR-60) near the Grand Avenue off-ramp in Diamond Bar, CA. The incident involved three vehicles: a silver Nissan Rogue, which was not drivable, a white Dodge Charger, and a third vehicle that has not been described. The collision resulted in blocked lanes, including the High Occupancy Vehicle (HOV) lane and adjacent lanes, causing substantial traffic delays and congestion in the area.

Emergency response teams, including traffic management units and tow trucks, were dispatched to the scene shortly after the collision was reported at approximately 8:58 PM. Tow trucks arrived to assist in clearing the roadway, with one truck successfully removing two vehicles by 10:07 PM. Additional assistance was requested for the third vehicle to restore normal traffic flow.

Motorists are advised to expect delays and consider alternate routes as traffic remains impacted in the area. The situation is being monitored, and updates will be provided as they become available. This traffic incident highlights the importance of remaining vigilant and cautious while driving, especially during peak travel times.

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