Major Traffic Disruption on I-15 After Collision

Traffic Collision on Interstate 15 South in Rancho Cucamonga Causes Delays Today

📍 Rancho Cucamonga, CA

📅 Published: September 3, 2025 at 04:01 AM

Map showing the location of the accident in Rancho Cucamonga, CA
Rancho Cucamonga, September 3, 2025 -

A traffic collision involving two vehicles, a grey GMC Canyon and a semi truck, occurred early this morning on Interstate 15 South near Foothill Boulevard in Rancho Cucamonga, CA. The incident was reported at approximately 3:35 AM, leading to significant traffic disruptions in the area. The GMC Canyon reportedly moved into a closure area, which contributed to the collision with the semi truck.

As a result of the traffic incident, both vehicles blocked multiple lanes, causing traffic to come to a halt. Motorists were unable to move, resulting in delays and congestion for early morning commuters. Emergency services promptly responded to the scene, focusing on traffic management and scene control to mitigate the impact on traffic flow.

By 3:41 AM, emergency responders directed both vehicles to pull into a closure area to facilitate the clearing of the roadway. Their swift actions helped manage the situation, but drivers in the vicinity experienced significant backup during the incident.

Motorists are advised to remain cautious and expect potential delays in the area as cleanup efforts continue. This traffic collision underscores the importance of adhering to road closures and maintaining safe distances from other vehicles on the highway.

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