Alameda County - Caltrans will perform overnight maintenance work inside the Posey Tube beginning Monday, July 14 through Wednesday, July 16, 2025, as part of a Clean California-funded improvement effort.
To ensure the safety of crews and the public, the Posey Tube will be closed nightly from 10:00 PM to 4:30 AM. During this time, motorists are advised to use alternate routes, such as the Webster Tube or the Park Street Bridge, and allow extra travel time.
Closure Details:
Location: Posey Tube (Alameda to Oakland)
Dates: Monday, July 14 – Wednesday, July 16, 2025
Time: 10:00 PM – 4:30 AM (nightly closures)
Be Work Zone Alert and expect travel delays.
Caltrans will update its Twitter page at https://twitter.com/CaltransD4 on the latest highway conditions, and drivers are encouraged to check out Caltrans Quickmap http://quickmap.dot.ca.gov/
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.
| CleanCA.com | #BeWorkZoneAlert | X | Facebook | YouTube |