Major Traffic Jam on US Highway 101 South

Traffic Collision on US Highway 101 in San Francisco Causes Delays Today

📍 San Francisco, CA

📅 Published: September 19, 2025 at 11:13 AM

🔄 Updated: September 19, 2025 at 12:03 PM

Map showing the location of the accident in San Francisco, CA
San Francisco, September 19, 2025 -

A traffic collision on US Highway 101 South at the transition to Interstate 80 West in San Francisco, CA, caused significant traffic disruptions today during the morning commute. The incident involved two vehicles: a grey Subaru Ascent and a grey Subaru Outback.

The collision occurred around 10:36 AM, blocking both the slow lane and the adjacent lane, which led to considerable congestion in the area. Emergency response units quickly arrived to manage the scene and facilitate traffic flow. A tow truck was requested to remove the grey Subaru Ascent, which was determined to be undriveable.

As a result of the traffic incident, motorists experienced delays and backups on US Highway 101 South, with traffic extending into nearby areas. Drivers were encouraged to seek alternate routes to avoid the congestion.

The response team worked efficiently to clear the scene and restore normal traffic conditions. This traffic collision serves as a reminder of the potential for significant traffic disruptions, even in minor incidents. Commuters are urged to remain vigilant and drive carefully, particularly in busy transition areas like US Highway 101 and Interstate 80.

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