Major Traffic Delays on I-10 After Collision

Traffic Collision on Interstate 10 in Upland Causes Significant Delays Today

📍 Upland, CA

📅 Published: July 11, 2025 at 10:33 AM

🔄 Updated: July 11, 2025 at 12:01 PM

Map showing the location of the accident in Upland, CA
Upland, July 11, 2025 -

A traffic collision occurred today on Interstate 10 West at the intersection of Mountain Avenue in Upland, CA, leading to significant traffic disruptions during the morning commute. The incident involved three vehicles: a semi-truck, a gray Toyota, and a silver Toyota Highlander.

Emergency services were promptly dispatched to the scene to manage the situation and facilitate the clearing of the roadway. As a result of the collision, one lane of the freeway and a mainline lane were closed, causing delays and congestion for motorists traveling through the area. Traffic signals were activated to alert drivers about the ongoing incident, further contributing to the backup.

Authorities issued a signal alert to inform drivers of the lane closures and potential delays. By late morning, one lane remained closed while other lanes were reopened, but traffic continued to be affected by residual congestion. A tow truck was called to assist in removing the vehicles involved in the collision.

Motorists are advised to seek alternate routes and exercise caution while traveling near the incident. The situation is being monitored, and updates will be provided as more information becomes available.

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