Tesla Collision Causes Major Traffic Disruptions

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

📍 Diamond Bar, CA

📅 Published: September 7, 2025 at 04:02 PM

🔄 Updated: September 7, 2025 at 05:31 PM

Map showing the location of the accident in Diamond Bar, CA
Diamond Bar, September 7, 2025 -

A traffic collision on State Route 57 North in Diamond Bar, CA, caused significant disruptions today during the afternoon commute. The incident involved one vehicle, a gray Tesla, which lost control and collided with barriers, blocking the High-Occupancy Vehicle (HOV) lane.

The collision occurred around 3:41 PM, leading to immediate lane closures and creating congestion in the area. Emergency services quickly responded to manage traffic control and secure the scene. A tow truck was dispatched to remove the disabled vehicle, which was obstructing the HOV lane and contributing to delays for drivers.

As a result of the traffic incident, motorists experienced backups and delays along State Route 57, particularly near the intersection with South Brea Canyon Road. Authorities issued a signal alert for the HOV lane, advising drivers to seek alternate routes to avoid further delays.

By approximately 4:33 PM, all lanes were reopened, and the signal alert was canceled, allowing traffic to resume normal flow. However, the initial impact of the traffic collision was felt by many commuters who faced extended travel times during the busy afternoon hours.

Motorists are reminded to stay vigilant and exercise caution while driving, especially in areas where traffic incidents may occur.

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