Major Traffic Disruption on SR-57 After Collision

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

📍 San Dimas, CA

📅 Published: September 4, 2025 at 05:33 AM

🔄 Updated: September 4, 2025 at 06:33 AM

Map showing the location of the accident in San Dimas, CA
San Dimas, September 4, 2025 -

A traffic collision involving two vehicles, a large car hauler and a tow truck, occurred today on the northbound State Route 57 (SR-57) near the eastbound Interstate 210 (I-210) interchange in San Dimas, CA. The incident took place during the early morning hours, causing significant disruptions to traffic flow.

The large car hauler reportedly left the roadway, leading to lane closures along the northbound SR-57 and the eastbound I-210 corridor. Emergency response teams were dispatched to the scene to manage traffic and ensure safety. As a result, motorists experienced delays and backups in the area, particularly during the busy morning commute.

Traffic management units are actively working to control road conditions and facilitate the removal of the vehicles involved in the collision. A tow truck is currently being secured for removal, and crews are on-site to restore normal traffic flow as quickly as possible. Drivers are advised to seek alternative routes to avoid congestion while the situation is being addressed.

This traffic incident underscores the importance of exercising caution while driving, especially during peak travel times. Authorities are committed to clearing the scene efficiently and minimizing the impact on commuters. Updates will be provided as the situation develops.

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