Major Traffic Delays After SR-57 Collision

Traffic Collision on State Route 57 in San Dimas Causes Delays Today

📍 San Dimas, CA

📅 Published: June 1, 2025 at 03:04 AM

🔄 Updated: June 1, 2025 at 03:38 AM

Map showing the location of the accident in San Dimas, CA
San Dimas, June 1, 2025 -

A traffic collision involving two vehicles occurred today on the northbound lanes of State Route 57 (SR-57) near Covina Boulevard in San Dimas, CA. The incident, which took place around 2:30 AM, involved a black Audi SUV and another vehicle that remains unidentified.

Emergency services responded quickly to the scene, deploying multiple units to manage traffic and control the situation. As a result of the collision, several lanes were closed, leading to significant traffic delays and congestion for morning commuters. The black Audi SUV was reported to have overturned, partially obstructing the roadway, while the other vehicle was found in the vicinity with its hazards activated.

A tow truck was requested to assist in clearing the vehicles from the scene, which further impacted traffic flow. Motorists traveling through the area are advised to expect backups and delays as emergency crews work to restore normal conditions.

Drivers are encouraged to seek alternate routes if possible to avoid the traffic incident on SR-57. Updates will be provided as the situation develops, and authorities continue to manage the scene.

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