The K Ingleside is a light‑rail line of the San Francisco Municipal Railway (Muni Metro) system in San Francisco, California. It is designated by the letter “K” and serves the Ingleside neighborhood and surrounding areas.
Route and stations
- Northern terminus: Embarcadero Station, located at Market Street and The Embarcadero.
- Southern terminus: Balboa Park Station, at the intersection of Ocean Avenue and Balboa Street.
- The line travels south on Market Street, shares the subway tunnel under downtown with the other Muni Metro lines, emerges onto Route 17th Street, then proceeds along surface streets—primarily Ocean Avenue—through the neighborhoods of West Portal, Ingleside, and the southern part of the Sunset District before reaching Balboa Park.
- Major surface stops include St. Francis Circle, West Portal, and the Ocean Avenue stations at various cross streets.
History
- The service originated as a streetcar line operated by the United Railroads (later the Market Street Railway) and began operation in 1918 as the “Ingleside” streetcar route.
- In 1944 the line was taken over by the San Francisco Municipal Railway and redesignated as the “K” line.
- The route was converted from traditional streetcars to modern light‑rail vehicles (LRVs) during the Muni Metro modernization program; full conversion was completed in 1980 when the line began using the underground Market Street subway.
Rolling stock and operation
- The K Ingleside is operated with the standard Muni Metro fleet of Breda‑type LRVs, which are electrically powered via a 600 V DC overhead catenary system.
- Trains typically operate at 10‑ to 15‑minute intervals during peak periods and at 15‑ to 20‑minute intervals during off‑peak hours. Service runs from approximately 5 a.m. to 1 a.m. on weekdays, with reduced frequency on weekends and holidays.
Connections
- At Embarcadero Station, riders can transfer to Muni Bus routes, the historic F‑Market streetcar, and regional connections such as the BART system.
- Balboa Park Station provides transfers to Muni Bus routes, regional AC Transit services, and the Caltrain commuter rail network.
Significance
- The K Ingleside serves residential neighborhoods, commercial corridors, and major city attractions, providing a key north‑south transit link that complements the east‑west service of the Market Street subway.
- Ridership data from the San Francisco Municipal Transportation Agency (SFMTA) indicate that the K line carries several hundred thousand passenger trips annually, contributing to the city’s efforts to reduce automobile dependence and support sustainable urban mobility.
