Major Traffic Disruption on US Highway 101

Traffic Collision on US Highway 101 South in Santa Rosa Causes Delays Today

📍 Santa Rosa, CA

📅 Published: August 5, 2025 at 07:36 AM

Map showing the location of the accident in Santa Rosa, CA
Santa Rosa, August 5, 2025 -

A traffic collision on US Highway 101 South in Santa Rosa, CA, has caused significant disruptions during the morning commute today. The incident, involving two vehicles—a grey Volkswagen and a Toyota—occurred around 7:15 AM near the Hearn Avenue off-ramp. Both vehicles were confirmed to be driveable but were blocking multiple lanes, leading to a complete halt of traffic on the southbound side of the highway.

Emergency response teams from the California Highway Patrol arrived quickly to manage traffic and control the scene. As a result of the collision, congestion rapidly built up, creating a backup for motorists attempting to navigate through the area. The CHP worked diligently to clear the roadway and restore normal traffic flow.

Drivers in the vicinity are advised to seek alternate routes to avoid delays. The ongoing traffic incident has led to significant disruptions, and it may take some time for conditions to return to normal. Motorists are encouraged to remain patient and drive cautiously as emergency crews continue to manage the situation.

For those traveling through Santa Rosa, CA, on US Highway 101 South, it is essential to stay updated on traffic conditions and plan accordingly to minimize travel disruptions.

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