Major Traffic Backup After Fontana Collision

Traffic Collision on Sierra Avenue Onramp to Interstate 10 East in Fontana Causes Delays Today

📍 Fontana, CA

📅 Published: August 19, 2025 at 04:05 PM

Map showing the location of the accident in Fontana, CA
Fontana, August 19, 2025 -

A traffic collision on the Sierra Avenue Onramp to Interstate 10 East in Fontana, CA, caused significant traffic disruptions today. The incident, involving two vehicles—a grey Toyota Tacoma and a black Toyota sedan—occurred around 3:07 PM and resulted in lane #2 being blocked. This blockage led to all lanes on the roadway being stopped, creating a substantial backup for drivers during the afternoon commute.

Emergency response teams, including the California Highway Patrol (CHP) and the Freeway Service Patrol (FSP), quickly arrived at the scene to manage traffic and ensure safety. By 3:29 PM, all lanes were halted as units worked to clear the incident. The FSP reported that one vehicle was unmovable, contributing to the congestion.

As the situation developed, emergency responders coordinated efforts to manage the traffic flow and assist with the removal of the vehicles involved. By approximately 3:51 PM, the scene was cleared, allowing traffic to resume its normal flow. However, motorists should remain cautious as residual delays may persist in the area.

This incident highlights the importance of staying alert and driving safely, especially during peak traffic hours. For ongoing updates on traffic conditions, drivers are encouraged to check local traffic reports.

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