A traffic collision on State Route 57 South at State Route 60 West in Diamond Bar, CA, has led to significant traffic disruptions today. The incident occurred around 2:45 PM when a white van ran off the roadway, with two additional vehicles involved—one found in the bushes and another that remains unidentified.
Emergency response teams quickly arrived at the scene to manage the situation. Towing operations have commenced for at least one vehicle, and traffic is being controlled through on-ramp holds and lane management measures. As a result, motorists can expect delays and potential backups, particularly affecting the Diamond Bar on-ramp to westbound State Route 60.
The California Highway Patrol has issued a signal alert for the Diamond Bar on-ramp, advising drivers to seek alternate routes to avoid congestion. Emergency units are actively working to secure the incident area and restore normal traffic flow.
Motorists traveling through this region should remain cautious and be prepared for possible lane closures and delays as the situation continues to develop. The CHP is closely monitoring the traffic incident to ensure the safety of all drivers.
Drivers are encouraged to stay updated on traffic conditions and plan their routes accordingly to minimize travel disruptions.