Caltrans Advises Motorists of Potential Webster/Posey Tubes and Doolittle Drive Closures Due to Upcoming King Tides

Alameda County - Caltrans is advising motorists of potential closures along State Route 61 (Doolittle Drive) and State Route 260 (Webster/Posey Tubes) during upcoming King Tide events between November 2026 and February 2027.

King Tides are exceptionally high tides that can increase the risk of flooding in lowlying coastal areas. Depending on tidal conditions, temporary closure of highways may be necessary to ensure the safety of motorists and protect infrastructure.

Upcoming King Tide Periods:

November 22-28, 2026
December 20-27, 2026
January 18-24, 2027
February 16-22, 2027

At this time, no closures are scheduled. Caltrans Maintenance crews are coordinating with the cities of Alameda and Oakland to monitor conditions and prepare for potential impacts.

Should closures become necessary, Caltrans will notify the public through traffic advisories, email notifications, and social media updates. Caltrans will also coordinate with local agency partners to help share timely information through their established public notification channels.

Motorists traveling through these areas during the identified King Tide periods are encouraged to plan ahead, remain alert to changing roadway conditions, and allow extra travel time if closures become necessary.

Caltrans appreciates the public's patience and cooperation as crews work to maintain safe travel conditions.

For real-time traffic information, visit QuickMap at https://quickmap.dot.ca.gov/.