Caltrans will close Bore No. 3 of the Caldecott Tunnel on westbound State Route 24 on Tuesday night for circuit breaker work and routine maintenance. The closure is scheduled to begin at 10 p.m. The bore is expected to reopen by 4:30 a.m. Wednesday. Watch NBC Bay Area News free wherever you are WATCH HERE WATCH HERECaltrans said the same overnight closure will repeat on Wednesday night as crews continue maintenance work.