Two-Vehicle Collision Causes Traffic Disruptions in San Dimas

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

📍 San Dimas, CA

📅 Published: March 12, 2025 at 11:32 PM

Map showing the location of the accident in San Dimas, CA
San Dimas, March 12, 2025 -

A traffic collision involving two vehicles occurred today near the junction of State Route 57 South and Arrow Highway in San Dimas, CA, at approximately 9:46 PM. One of the vehicles involved was a black Honda, while details about the second vehicle remain unspecified. The collision resulted in at least one vehicle making contact with a guardrail.

Emergency response units from the California Highway Patrol (CHP) promptly arrived on the scene to manage traffic and ensure safety. While no specific lane closures were reported, the incident likely caused traffic delays and backups in the southbound lanes of State Route 57, particularly during the evening commute.

A tow truck was requested to assist with the removal of the vehicles involved in the crash. CHP units worked diligently to control the scene and minimize disruption to traffic flow. Motorists traveling through San Dimas are advised to remain cautious and expect possible congestion in the area as emergency services continue to address the aftermath of this traffic incident.

Drivers are encouraged to seek alternative routes if possible to avoid delays. Updates on the traffic situation will be provided as more information becomes available.

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