Major Traffic Disruption from Semi-Truck Collision

Major Traffic Incident Involving Overturned Semis Causes Lane Closures in Diamond Bar, CA

📍 Diamond Bar, CA

📅 Published: February 20, 2025 at 04:31 AM

🔄 Updated: February 20, 2025 at 01:30 PM

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

A significant traffic incident occurred today involving two semi-trucks on the transition from State Route 60 East to State Route 57 North in Diamond Bar, CA. The collision resulted in one of the trucks overturning, leading to major lane closures and traffic disruptions in the area.

Emergency response teams quickly arrived to manage the situation. Currently, the transition from eastbound State Route 60 to northbound State Route 57 is closed, with only one high-occupancy vehicle lane remaining open. The closure affects multiple lanes, specifically lanes two, three, and four, causing significant traffic delays for commuters.

The California Highway Patrol has issued a signal alert, initially set for one hour, which has since been extended due to ongoing cleanup efforts. Crews are working diligently to clear debris from the roadway, including concrete spilled from the overturned truck.

A tow truck has been called to assist in removing the overturned vehicle, and multiple units are on-site to secure the area and direct traffic. Motorists are advised to seek alternate routes to avoid the affected area, as the cleanup is expected to take additional time.

Drivers should remain cautious and patient as emergency responders continue to address the situation. Updates on the traffic incident will be provided as more information becomes available.

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