On October 22, the Caldecott Tunnel Fourth Bore project was honored with an Excellence in Motion award from the Metropolitan Transportation Commission. When making the award, the Commission cited the tremendous congestion relief provided by the bore, that the project was on time and on budget, and the bore's stellar safety record. Read more.
If you'd like to see more photos of the Fourth Bore and its predecessor tunnels linking Alameda and Contra Costa Counties, the newest issue in the Images of America historic photo books series is for you: Building the Caldecott Tunnel. Learn more and order the publication.
Dr. Bhaskar Thapa, a lead tunnel designer of the Fourth Bore, passed away in June 2013. Dr. Thapa played a critical role on the Caldecott Fourth Bore Project during his eight-year involvement — from design through excavation. Dr. Thapa's wife, Sumira, and two sons, Barune and Sidhant, attended the Fourth Bore's ribbon cutting ceremony on November 15, 2013, when he was formally recognized for his significant contributions to the project. His family received a standing ovation from the 250 guests who were present.
The Caldecott Tunnel Fourth Bore is now open to traffic. At approximately 4:25 am on Saturday, November 16, 2013 the Caldecott Fourth Bore opened to traffic – on time, under budget, with little fanfare.
The long-awaited tunnel opening occurred less than 24 hours after Caltrans and first responder agencies, including the City of Oakland Fire Department, the Moraga-Orinda Fire District, the California Highway Patrol and the State Fire Marshal signed an Emergency Response Plan (ERP) authorizing the state to open the new tunnel to traffic.