I-15 Collision Causes Major Traffic Delays

Traffic Collision on Interstate 15 in Rancho Cucamonga Causes Delays Today

📍 Rancho Cucamonga, CA

📅 Published: September 14, 2025 at 03:06 AM

🔄 Updated: September 14, 2025 at 04:30 AM

Map showing the location of the accident in Rancho Cucamonga, CA
Rancho Cucamonga, September 14, 2025 -

A traffic collision occurred today on the southbound lanes of Interstate 15 (I-15) at the 4th Street off-ramp in Rancho Cucamonga, CA, leading to significant traffic disruptions. The incident involved two vehicles, one of which overturned and came to rest on its roof.

Emergency response units quickly arrived at the scene to manage the situation and ensure safety. Lane closures were implemented as a result of the collision, causing delays and congestion for motorists during the early morning hours. The traffic incident was reported around 1:58 AM, and emergency traffic management worked diligently to clear the roadway.

By approximately 2:53 AM, the roadway was reported clear, allowing traffic to resume normal flow. One vehicle was towed from the scene, while the status of the other vehicle remains unspecified. The incident created backups on the southbound side of I-15, impacting the morning commute for many drivers in the area.

Motorists are advised to remain cautious and stay updated on traffic conditions near the 4th Street off-ramp. The swift response from emergency services helped to minimize the impact of the traffic incident, ensuring that the roadway was cleared as quickly as possible.

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