Major Collision Causes Traffic Chaos on SR-57

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

📍 Diamond Bar, CA

📅 Published: April 7, 2025 at 03:34 PM

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

A traffic collision on Southbound State Route 57 (SR-57) in Diamond Bar, CA, has led to significant traffic disruptions today. The incident occurred around 12:15 PM and involved three vehicles: a blue Dodge Charger, a big rig, and another vehicle. The Charger reportedly lost control and collided with the big rig, which continued moving after the impact.

As a result of the collision, lane closures were implemented at the Pathfinder off-ramp near Diamond Bar Boulevard, causing delays and congestion for drivers in the area. Emergency response teams were dispatched to manage the scene and coordinate towing services for the involved vehicles. A tow truck was called to assist with the recovery of the Dodge Charger, which was seen emitting smoke from its engine compartment.

Traffic was heavily impacted, and motorists are advised to expect backups and seek alternate routes if possible. The situation is being monitored closely, and updates will be provided as recovery efforts continue. Commuters are encouraged to remain alert and exercise caution while traveling through this section of SR-57, especially during peak traffic hours.

This incident underscores the importance of safe driving practices. Authorities remind all drivers to stay vigilant and adhere to traffic regulations to help prevent similar incidents in the future.

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