BART Shuts Multiple Lines This Sunday

Bay Area Rapid Transit shut down its Red and Green lines on Sunday, April 26, and cut the rest of the system to 30-minute service for all-day work in the Transbay Tube. (bart.gov) BART said crews were replacing lights in the tube, the underwater rail link between San Francisco and Oakland, and had to run trains on only one track for the entire day. (bart.gov) Only the Blue, Yellow, and Orange lines stayed in service Sunday. The Red line did not operate at all, and the Green line was suspended between Berryessa and Daly City. (bart.gov 1) (bart.gov 2) Millbrae riders had to use a shuttle train between San Francisco International Airport and Millbrae, then transfer to or from the Yellow line. Riders from Richmond heading to Millbrae were told to transfer at MacArthur. (bart.gov) Berryessa riders heading toward San Francisco were told to board a Richmond train and transfer at Bay Fair to a Daly City train. Riders coming from San Francisco toward Berryessa were told to take a Dublin/Pleasanton train and transfer at Bay Fair. (bart.gov) BART had announced the April 26 disruption in advance as one of three Sunday single-tracking dates in 2026. The other planned workdays are June 7 and July 19. (bart.gov) The agency said normal service would return Monday, April 27. Its alerts page listed the Sunday shutdown as a planned advisory, separate from ongoing nightly delays tied to train control modernization near Millbrae and San Francisco International Airport. (bart.gov 1) (bart.gov 2) That modernization project is replacing BART’s aging train control system with Communications-Based Train Control, which the agency says could raise core Transbay capacity to 30 trains an hour in each direction from 24. (bart.gov) For riders, the immediate effect was simpler: fewer lines, longer waits, and more transfers on a Sunday when one of the Bay Area’s busiest rail links was down to a single track. (bart.gov)