Free buses operated by SamTrans and Muni will replace trains between the two stations throughout the weekend. Some buses will run directly between 24th Street and Daly City, while others will also stop at Glen Park and Balboa Park stations. Riders will exit through open fare gates at 24th Street and Daly City, board a bus, and re-enter through fare gates at their destination station. The bus bridge carries no additional fare.

BART officials are advising passengers to plan for delays of up to 30 minutes. Extra staff and interpreters will be stationed at the affected stops to help riders navigate the bus bridge, and additional signage will be posted inside the stations.

The closure is part of BART's broader effort to install a modern communication and train-control system on its tracks. Agency officials say the upgrade will allow trains to run closer together, raising capacity from 24 trains per hour in one direction to 30 per hour.

Commuters who park at Daly City should note that several surface lots there will be temporarily closed to make room for the bus bridge and construction equipment.

Updated schedules are available through BART's Trip Planner at bart.gov. Riders who rely on the southern stretch of the line — including Mission District residents, Glen Park and Balboa Park neighbors, and Peninsula commuters connecting through Daly City — should treat the weekend as a bus-only corridor and allow extra time for the transfer.