Traffic Collision Disrupts Evening Commute on I-280

Traffic Collision on Interstate 280 South in Portola Valley Causes Lane Blockages Today

📍 Portola Valley, CA

📅 Published: July 1, 2025 at 08:04 PM

🔄 Updated: July 1, 2025 at 09:30 PM

Map showing the location of the accident in Portola Valley, CA
Portola Valley, July 1, 2025 -

A traffic collision occurred today on Interstate 280 South at the Sand Hill Road on-ramp in Portola Valley, CA, involving two vehicles. One vehicle, a Nissan 350Z, was reported to have left rear damage, while the other vehicle's make and model remain unidentified.

Emergency services were dispatched to the scene to manage traffic and ensure safety. Initially, the incident caused lane blockages, leading to delays for motorists during the evening commute. However, by approximately 8:20 PM, all lanes were reported to be clear and open, allowing traffic to resume its normal flow.

Tow services were requested for at least one of the vehicles involved in the crash. The prompt response from emergency personnel helped to minimize disruption and restore traffic conditions as quickly as possible.

Motorists traveling on Interstate 280 South are advised to remain vigilant and cautious, especially during peak traffic hours. The California Highway Patrol continues to monitor the area to ensure safe travel for all drivers.

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