eastbound | 511 Contra Costa

Caldecott Overnight Closures: December 2 & 3

Caltrans will perform overnight maintenance on Bores 1 and 2 of the eastbound Caldecott Tunnel on two consecutive nights – December 2 & 3. All work is dependent on weather. Only one bore will be worked on each night. Schedule:

  • Bore #1 • Tuesday, Dec 2, 2025 – 10:00 PM to 4:30 AM
  • Bore #2 • Wednesday, Dec 3, 2025 – 10:00 PM to 4:30 AM