February 3, 2012 > Retrofit of Transbay Tube continues
Retrofit of Transbay Tube continues
Board approves $7.7M contract for additional earthquake safety work
Submitted By BART
BART continues earthquake-safety strengthening of the Transbay Tube which was not damaged in the 1989 Loma Prieta earthquake but remains BART's top Earthquake Safety priority. On January 26, 2012, the Board of Directors authorized the General Manager to award a contract of $7.735M to California Engineering Contractors of Pleasanton to install steel plating inside the 3.6 mile-long Transbay Tube. The work will be part of the 10-year Earthquake Safety Program to protect BART's core system against a major earthquake.
"The safety of our passengers is BART's number one responsibility and concern," BART Board President John McPartland said. "Our Earthquake Safety Program retrofit started in the Transbay Tube and we are almost finished. This upcoming work is yet another indication that we take seriously our responsibility to prepare for the inevitability of a major earthquake."
The contractor is required to bolt 2.5 inch steel plates on the concrete wall of the Transbay Tube. The work is expected to begin in Spring 2012 and be completed in 2014.
BART's Earthquake Safety Program, which has been underway since 2001 and is expected to be completed in 2016, has a $1.3 billion budget ($980 million from voter approved general obligation bonds). Significant work to strengthen the Transbay Tube is already complete.
Overall, BART's Earthquake Safety Program will strengthen not only the Transbay Tube but also 34 stations (11 aerial, 14 subway and nine ground level), 22 miles of elevated track (including 1,918 support columns) and parking structures and other facilities. The program is 85 percent complete, ahead of schedule and on budget.
Strengthening the Transbay Tube is a major priority of the project. The Transbay Tube, connecting San Francisco to Oakland, carries about half of BART's 365,000 daily, weekday riders and, during the peak trans-bay commute hours, BART riders equal the number of Bay Bridge drivers - 50,000 - reducing bridge congestion by half.
For more information, visit www.bart.gov/earthquake