Major Traffic Disruption from Collision in San Dimas

Traffic Collision on State Route 71 in San Dimas Causes Delays Today

📍 San Dimas, CA

📅 Published: August 7, 2025 at 02:40 PM

🔄 Updated: August 7, 2025 at 04:02 PM

Map showing the location of the accident in San Dimas, CA
San Dimas, August 7, 2025 -

A traffic collision occurred today at the intersection of State Route 71 North and Interstate 10 West in San Dimas, CA, involving three vehicles: a gray Cadillac, a black Kia, and a gray Kia sedan. The incident was reported shortly after 1:51 PM and led to significant traffic disruptions in the area.

Emergency units quickly responded to the scene to manage traffic and control the situation. As a result of the collision, lane closures were implemented on Northbound State Route 57, with traffic being diverted from Westbound Interstate 10. This diversion caused noticeable delays and congestion for afternoon commuters.

Authorities issued a SigAlert, indicating that all lanes on Northbound State Route 71 at the gore point of the split between State Route 57 and Interstate 10 would be closed for at least one hour. A tow truck was dispatched to assist in clearing the vehicles involved in the incident.

Motorists are advised to seek alternative routes to avoid the backup and delays caused by this traffic incident. The situation is being monitored closely, and updates will be provided as the scene is cleared and normal traffic flow is restored.

Drivers are encouraged to stay informed about traffic conditions and to exercise caution while navigating through the affected areas.

Were you or someone you know involved in this accident?

If you would like the full incident log, we can send it to you directly.

Request Full Incident Log

Disclaimer

The content on this website is auto-generated and based on publicly available information. While we strive to provide accurate and timely updates, we cannot guarantee the accuracy, completeness, or reliability of the information presented. This content is for informational purposes only and should not be used as the basis for decision-making. We encourage you to independently verify any facts or details. For the most accurate and up-to-date information, please contact the California Highway Patrol (CHP) directly. The website and its owners are not responsible for any errors, omissions, or actions taken based on the information provided.