Traffic Snarled After Collision on U.S. 101

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

📍 Petaluma, CA

📅 Published: June 4, 2025 at 10:30 AM

Map showing the location of the accident in Petaluma, CA
Petaluma, June 4, 2025 -

A traffic collision on Southbound U.S. Highway 101 at Pepper Road in Petaluma, CA, caused significant traffic delays today. The incident involved one vehicle and resulted in the closure of lane three, leading to temporary backups during the morning commute. Emergency services responded quickly, coordinating multiple agencies to manage the scene effectively.

Traffic control measures were implemented, including the establishment of flare zones to guide drivers safely around the area. As emergency responders worked to clear the scene, all southbound lanes were eventually reopened, alleviating congestion that had built up due to the incident. However, the Pepper Road on-ramp remained closed for a short period as the situation was managed.

A tow truck was called to the scene to handle the vehicle involved in the collision, which was taken for evidence processing. The swift actions of emergency services ensured that traffic flow was restored as quickly as possible, minimizing the impact on commuters.

Motorists traveling through this area should remain vigilant and expect potential delays as residual traffic may continue to affect travel times. This traffic incident serves as a reminder for drivers to stay alert and adhere to traffic regulations, especially in busy areas like U.S. Highway 101.

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