Traffic Collision Causes Major Delays in Cupertino

Traffic Collision on Interstate 280 South in Cupertino Causes Delays Today

📍 Cupertino, CA

📅 Published: July 24, 2025 at 07:34 PM

Map showing the location of the accident in Cupertino, CA
Cupertino, July 24, 2025 -

A traffic collision involving two vehicles occurred today at the intersection of Interstate 280 South and De Anza Boulevard Onramp in Cupertino, CA. The incident took place around 6:22 PM and involved a white Honda sedan and a black BMW sedan. Both vehicles remained operable, although the Honda sustained moderate rear-end damage.

The traffic incident led to significant lane closures, resulting in traffic congestion and delays in the area. The De Anza Boulevard onramp to southbound Interstate 280 was temporarily shut down to allow for emergency response and scene management. Multiple units from the California Highway Patrol responded quickly to control traffic and secure the scene, ensuring the safety of all motorists.

By 6:57 PM, the main line of Interstate 280 was reopened, but the De Anza onramp to southbound traffic remained closed for a period. The onramp from De Anza was eventually reopened by 7:01 PM, which helped alleviate some of the traffic backup.

Motorists traveling through Cupertino should anticipate residual delays as traffic begins to return to normal following the incident. Authorities advise drivers to remain cautious and to follow posted detours while navigating the area.

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