Major Traffic Jam on Highway 101 After Collision

Traffic Collision on U.S. Highway 101 in Petaluma Causes Delays Today

📍 Petaluma, CA

📅 Published: September 29, 2025 at 05:12 PM

🔄 Updated: September 29, 2025 at 06:03 PM

Map showing the location of the accident in Petaluma, CA
Petaluma, September 29, 2025 -

A traffic collision involving four vehicles occurred today on U.S. Highway 101 North near the Penngrove Off-Ramp in Petaluma, CA. The incident was reported around 4:20 PM, leading to significant traffic disruptions during the afternoon commute.

The vehicles involved included a white Fiat, a black sports car, a silver Honda, and another small white vehicle. As a result of the collision, two lanes were blocked, forcing traffic to move onto the shoulders of the highway. Emergency responders quickly arrived at the scene to manage traffic and secure the area.

Both the Fiat and the Honda were designated for towing, with tow trucks en route to assist in clearing the vehicles from the roadway. Emergency teams worked diligently to alleviate congestion, which began to build as vehicles were diverted around the blockage.

Motorists are advised to expect delays and consider alternate routes if possible. The situation is still developing, and updates will be provided as more information becomes available.

This traffic incident underscores the importance of safe driving practices and awareness on the road, particularly during peak travel times. Stay tuned for further updates regarding the status of the roadway and any additional impacts on traffic flow in the area.

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