Caltrain electrification construction is underway in and around Mission Bay. Starting Sat, Oct 6th, both the Caltrain stations at 4th & King and 22nd Street will be closed on weekends through spring, 2019.
Caltrain will run free bus service to and from both of these stations in the interim. WEEKDAY SERVICE WILL NOT BE AFFECTED.
BART has permanently shuttered the entry to Civic Center Station on Market St in front of the Hotel Whitcomb.