Overnight Closures Scheduled for Webster Tube July 21 and 22, 2025

Published on July 18, 2025

Overnight Closures Scheduled for Webster Tube (State Route 61) Monday, July 21 to Tuesday, July 22, 2025

ALAMEDA COUNTY-Caltrans will perform overnight closures of the Webster Tunnel on Monday, July 21, 2025, and Tuesday, July 22, 2025, from 10:00 PM to 4:30 AM each night for electrical work.

To ensure the safety of crews and the public, the Webster Tube will be closed Monday and Tuesday night from 10:00 PM to 4:30 AM. During this time, motorists are advised to use alternate routes and allow extra travel time.

Closure Details:
Location: Webster Tube (Oakland to Alameda)
Dates: Monday, July 21 – Tuesday, July 22, 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.