Traffic Collision Delays on I-280 Off-Ramp

Traffic Collision on Interstate 280 in San Francisco Causes Delays Today

📍 San Francisco, CA

📅 Published: September 3, 2025 at 07:34 PM

🔄 Updated: September 3, 2025 at 09:00 PM

Map showing the location of the accident in San Francisco, CA
San Francisco, September 3, 2025 -

A traffic collision involving two vehicles occurred today on the southbound Mariposa off-ramp of Interstate 280 (I-280) in San Francisco, CA. The incident took place around 6:41 PM and involved a black Toyota Prius and a white Chevrolet Tahoe, both positioned on the right-hand side of the roadway.

In response to the traffic incident, emergency units were dispatched to the scene to manage the situation. Traffic management measures were implemented, resulting in delays for motorists using the southbound Mariposa off-ramp. The collision created congestion in the area as responders worked to control the scene and facilitate the flow of traffic.

By approximately 7:06 PM, additional units, including the San Francisco Police Department, were notified to assist with traffic management. Emergency responders coordinated their efforts to ensure safety and minimize disruption to traffic. The area was cleared by emergency personnel, although the final status of the vehicles involved remains unconfirmed.

Motorists are advised to exercise caution while traveling in the vicinity and to expect potential delays as the aftermath of the traffic incident may continue to affect traffic flow. Drivers are encouraged to consider alternative routes to avoid congestion on the southbound Mariposa off-ramp of Interstate 280.

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