Temporary Friday Night Closure For Caldecott Tunnel's Fourth Bore Due To Emergency DrillThe fourth bore of the Caldecott Tunnels will be closed Friday night and part of Saturday morning for its first-ever emergency response drill, a Caltrans spokesman said.
Caltrans Apologizes For Traffic Snarl Caused By Caldecott Tunnel Electrical GlitchCaltrans apologized for a power outage that caused major backups at the Caldecott Tunnel Monday morning, because of an inability to switch the middle bore to westbound traffic. Workers were testing the new system out when they tripped a circuit that caused the glitch.
Caldecott Tunnel’s 4th Bore Takes Shape, Officials Advise Commuters: 'Be Patient'While the Caldecott Tunnel's fourth bore is taking shape, Caltrans officials are telling commuters to remain patient since it's not likely to open until the end of the year.

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