Major Traffic Disruption on SR-60 After Collision

Traffic Collision on State Route 60 in Diamond Bar Causes Delays Today

📍 Diamond Bar, CA

📅 Published: September 14, 2025 at 04:37 PM

Map showing the location of the accident in Diamond Bar, CA
Diamond Bar, September 14, 2025 -

A traffic collision involving two vehicles, a motorcycle and a Mazda, occurred today near the Diamond Bar exit on the eastbound State Route 60 (SR-60) in Diamond Bar, CA. The incident was reported around 3:41 PM and has resulted in notable traffic impacts in the area.

Emergency services promptly responded to the scene to manage the situation and ensure the safety of all motorists. Both vehicles involved in the traffic incident were confirmed to be drivable, which helped mitigate the disruption to traffic flow. However, drivers in the vicinity should anticipate some delays and possible congestion as emergency crews worked to clear the roadway.

By approximately 4:00 PM, emergency personnel had implemented lane and corridor management to facilitate the movement of traffic around the incident. The situation was being resolved, with vehicles exiting the scene at the Diamond Bar exit.

Motorists traveling on the eastbound SR-60 are advised to remain vigilant and consider alternative routes to avoid potential backups caused by this traffic collision. The incident underscores the importance of safe driving practices and attentiveness on the road.

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