A. I-680 Sunol Express Lane

From August 10, 2020 to Spring 2021 the I-680 southbound express lane from SR-84 to SR-237 will function as an HOV 2+ carpool lane only from 5 a.m. to 8 p.m. Only valid carpools and eligible clean air vehicles can use the lane. 

General Info

Hours of operation:

  • MON-FRI, 5:00 AM to 8:00 PM

Carpool occupancy: 2 or more people


  • HOV 2+ Only Lane August 10, 2020 to Spring 2021

  • 2-person carpools can use the lanes free. FasTrak is not required.


Press contact: info@AlamedaCTC.org

Lane operator: Alameda County Transportation Commission

The southbound I-680 Sunol Express Lane is temporarily restricted to carpool only to accommodate construction work that will synchronize the Express Lane technology with the future northbound I-680 Sunol Express Lane, scheduled to open spring 2021. The work may require temporary overnight lane closures on southbound I-680. For traffic updates, follow 511.org: https://twitter.com/511SFBAY. For real-time traffic, click on Caltrans QuickMap: http://quickmap.dot.ca.gov/.

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