The F-line will be served by buses rather than streetcars both Saturday and Sunday, January 18-19.
Saturday’s switch is caused by the removal of the disused crossing on the inbound (Wharf-bound) track at Fremont and Market, part of the abandoned Transbay Terminal loop. (The inbound switch at First and Market was removed last Saturday; the outbound switch on the Castro-bound track at Fremont will be removed next month.)
Sunday, apparently related to potential celebrations following the NFC Championship Game (the 49ers play in Seattle), ALL electric transit service except Muni Metro is being motorized and the overhead on Market Street de-energized. All Market Street lines, including the F, will operate via 11th and Mission Street.
Normally, January weekends would be about the best time to substitute buses for streetcars on the F. This weekend is expected to be warm and beautiful, summer-like (or even better). But removing the crossing and switches on Market Street make the F-line smoother and reduce wear and tear on the streetcar wheels a little. Our recommendation: come on down anyway, walk the wonderful Herb Caen Promenade along The Embarcadero, and visit our San Francisco Railway Museum, which will be open each day, 10-6.