Major Traffic Disruption on State Route 57

Traffic Collision on State Route 57 South in Pomona Causes Delays Today

📍 Pomona, CA

📅 Published: August 29, 2025 at 06:32 AM

🔄 Updated: August 29, 2025 at 07:30 AM

Map showing the location of the accident in Pomona, CA
Pomona, August 29, 2025 -

A traffic collision on State Route 57 South in Pomona, CA, has caused significant traffic disruptions this morning. The incident occurred around 5:54 AM and involved two vehicles: a black semi-truck that jackknifed and blocked lane #1, and a blue pickup truck towing a white trailer, which was also obstructing the roadway.

Emergency services, including the California Highway Patrol and tow teams, responded promptly to manage the scene and mitigate traffic impact. By 6:32 AM, a SigAlert was issued, indicating that lane #1 and part of lane #2 would be closed for approximately 45 minutes while efforts were made to clear the vehicles involved.

Throughout the morning, responders worked diligently to detach the trailer and ensure the safe removal of the semi-truck. By 7:04 AM, all lanes were reported to be open, and the SigAlert was canceled, allowing traffic to resume its normal flow.

Motorists traveling through the area should remain cautious, as residual congestion may still be present. This incident serves as a reminder for drivers to stay alert and prepared for unexpected delays during their commutes.

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