Southbound I-680 in Fremont NOW OPEN (Highway re-opens 13 hours ahead of schedule) ALAMEDA COUNTY – Southbound Interstate 680 has re-opened at 4:00 PM, Sunday July 27, more than 13 hours ahead of schedule, after Caltrans successfully completed operations at the Southbound I-680/Mission San Jose Separation Overpass in the City of Fremont.
The next scheduled 55-hour full highway closure will be on Northbound I-680/Mission San Jose Separation Overpass starting Friday August 8th at 10:00 PM to Monday morning, August 11. 2025.
If you have a question or want to share a concern about the project, please call the Project Hotline (510) 286-0319. You can also learn and get more updated information at the project webpage at: https://Dot.ca.gov/680DeckRehab
During these hours, the connector, ramps, and lanes may be closed to traffic. Motorists should follow posted detour signs and plan for extra travel time. Visit Caltrans QuickMap to check for real-time closures and traffic updates. Be Work Zone Alert and expect travel delays. All work is weather and schedule permitting. Caltrans appreciates your patience as we continue upgrading I-680 for a safer, more efficient Bay Area commute.
Motorists can also receive 24/7 highway condition information statewide by calling 1-800-427-ROAD or 1-800-427-7623. Caltrans thanks the public for their patience and cooperation as we continue to improve California's transportation network.
Traffic Advisory Date: July 27, 2025 District: Four - Oakland Contact: Hector Chinchilla Phone: (510) 421-8040
Email: [email protected]
