California Department of Transportation

09/11/2026 | Press release | Distributed by Public on 09/11/2026 15:38

Overnight Posey Tube Closures for Biennial Inspection and Routine Maintenance

Overnight Posey Tube Closures for Biennial Inspection and Routine Maintenance

Published: Sep 11, 2026

Friday, September 11 & Saturday, September 12, 2026

Alameda County - Caltrans will close the Posey Tube (SR-260) overnight between Alameda and Oakland for biennial inspections and routine tube maintenance.

Closure Schedule

Friday, September 11
 10:00 p.m. to 4:30 a.m. Saturday, September 12
Saturday, September 12
 10:00 p.m. to 4:30 a.m. Sunday, September 13

During the closures, crews will conduct scheduled biennial inspections and routine maintenance inside the Posey Tube.

Motorists traveling from Alameda to Oakland should use the Park Street Bridge, Fruitvale Avenue Bridge, or High Street Bridge as alternate routes.

The Webster Tube, which carries traffic from Oakland into Alameda, will remain open. Caltrans thanks motorists for their patience while crews perform this necessary inspection and maintenance work. Please allow extra travel time and follow posted detour signs.

Be Work Zone Alert and expect travel delays.

Caltrans thanks the public for their patience and cooperation as we continue to improve California's transportation network.

For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.

| CleanCA.com | CleanWaterCA | #BeWorkZoneAlert | X | Facebook | YouTube |

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California Department of Transportation published this content on September 11, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on September 11, 2026 at 21:38 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]