Overnight Closures Scheduled for Posey Tube for Maintenance Work

Published on May 12, 2026

Traffic Advisory

FOR IMMEDIATE RELEASE

Overnight Closures Scheduled for Posey Tube (State Route 260) for Maintenance Work

Alameda County –Due to maintenance work and to ensure the safety of crews and the public, Caltrans will implement the following closures in the Posey Tube (Alameda–Oakland). These closures are needed to support the continued renovation, upkeep, and overall improvement of the Tunnels & Tubes facilities. The work includes the work includes pressure washing, cleaning, surface preparation, and full paint application at both tunnel ends, along with routine maintenance needed to preserve and maintain the facility.

Nighttime Full Posey Tube Closures

Friday night, May 15th and

Saturday night, May 16th

10:00PM to 4:30AM

Motorists will be detoured via Lincoln Avenue, Park Street, and then onto northbound I-880. Drivers are advised to use alternate routes and allow extra travel time. During this time, motorists are advised to use alternate routes and allow extra travel time. Work includes repairing damaged concrete and improving the roadway surface on the Posey Tube bridge deck and approaches.

Be Work Zone Alert and expect travel delays.

Caltrans will update its Twitter page at https://X.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.