S Castro Shuttle

S Castro Shuttle
250px S-Castro Shuttle at Montgomery station providing service for AT&T Park and Caltrain station
Overview
Type	Light rail
System	Muni Metro
Locale	San Francisco, California
Termini	Embarcadero Station 4th and King Station (game day runs) Castro Station West Portal Station (game day runs)
Stations	7 13 (game days runs)
Operation
Owner	San Francisco Municipal Transportation Agency
Operator(s)	San Francisco Municipal Railway
Rolling stock	151 Breda light rail vehicles (high floor)
Technical
Track gauge	4 ft 8 1⁄2 in (1,435 mm) (standard gauge)
Electrification	Overhead lines, 600 V DC
Highest elevation	underground, at grade (game day runs)
Route diagram Legend 4th & King  E  game days 2nd & King AT&T Park game days Brannan game days I-80 (Bay Bridge) Folsom game days  E  x20px Embarcadero F  Montgomery Central Subway 2019 Powell Civic Center Van Ness Church Castro Eureka closed Twin Peaks Forest Hill game days x20px West Portal game days

The S Castro Shuttle is a Muni Metro line in San Francisco, California. It runs from Embarcadero Station downtown to the Castro Street Station during peak periods on weekdays. The line also runs when there is a home game at AT&T Park, extending from King and 4th Street to West Portal Station. During these times the Shuttle will occasionally run a three car formation being the only line that will do this regularly.

The S Castro Shuttle is the only line not included on any Muni Metro map or on NextBus.