BART Trans-bay Tunnel Gets Backup From Remote Fill Systems
Every day 430,000 people commute to San Francisco on BART. Few knew that until today, the lights in the Transbay tunnel were backed up for a couple of hours by batteries alone. Today, with the help of giant new generators and a brand new fuel tank with Remote Fill, Controls, Tank Gauging and Leak Detection by Remote Fill Systems, the tunnel has 24 hours of backup power for the lights and the important ventilation fans inside the tunnel.
Because the tunnel entrance is within the Oakland freight terminal, literally 50 feet from bay water, all of the exterior enclosures are 316L stainless steel. And since the intent is to provide backup power after an earthquake, all of the Controls and Remote Fill System, tank and piping are special seismic certified to survive a 9.0 earthquake.
Bay Area Rapid Transit (BART) is a rapid transit public transportation system serving the San Francisco Bay Area in California. The heavy rail elevated and subway system connects San Francisco and Oakland with urban and suburban areas in Alameda, Contra Costa, and San Mateo counties. BART serves 48 stations along six routes on 112 miles (180 km) of rapid transit lines, including a 10-mile (16 km) spur line in eastern Contra Costa County which utilizes diesel multiple-unit trains and a 3.2-mile (5.1 km) automated guideway transit line to the Oakland International Airport.
BART is the fifth-busiest heavy rail rapid transit network in the United States with an average of 411,000 weekday riders and 118 million annual passengers during fiscal 2019. The Bay Area Rapid Transit Agency, established in 1957, operates the BART. Between 1972 until 1974, the original system opened in phases. The Silicon Valley BART Extension, in collaboration with the Santa Clara Valley Transportation Authority (VTA), is set to open in Milpitas and Berryessa (San Jose) in 2020.