By Holly Quan

Construction on the fourth bore of the Caldecott Tunnel. (MTC)
BERKELEY (KCBS) – Caltrans 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.
The snafu at the Berkeley Hills roadway was blamed on trying to get a 40-year-old electrical system synced with the new state-of-the-art system following the near completion of the fourth bore, set to open later this year.
Caltrans is working on a backup plan so as compatibility testing continues they won’t have a glitch that impacts the commute.

Holly QuanBorn and raised in Oakland, Holly graduated from San Francisco State. She got her start in radio at age 16 by interviewing high school friends for the...More from Holly Quan