Stalled Muni train blocking the Castro station Inbound Muni light-rail vehicle traffic is blocked at Castro station after an overhead wire problem stalled a train at the station Thursday morning, officials said. The stalled train blocked the inbound part of the station around 10:50 a.m. and caused delays on K, L, M and T lines that pass through the station in both directions, said Kristen Holland, spokeswoman for the San Francisco Municipal Transportation Agency.