Fort Mason Tunnel

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Fort Mason Tunnel
West portal of Fort Mason Tunnel, June 2017.JPG
The west portal of the Fort Mason Tunnel in disuse
LineState Belt Railroad
LocationSan Francisco, California
Coordinates37°48′19″N 122°25′52″W / 37.8054°N 122.43118°W / 37.8054; -122.43118Coordinates: 37°48′19″N 122°25′52″W / 37.8054°N 122.43118°W / 37.8054; -122.43118
StartVan Ness
EndMarina Blvd. at Laguna St.
No. of stationsNone
OwnerNational Park Service
No. of tracks1
Track gauge4 ft 8+12 in (1,435 mm) standard gauge

Fort Mason Tunnel is an abandoned single-track railway tunnel in San Francisco. It was built in 1914 to bypass Fort Mason. The east portal is near the north end of Van Ness Avenue; the west portal feeds onto Marina Boulevard at Laguna Street.


The tunnel's construction in 1914 served several purposes. The rail link supplied goods and mass transit to the Panama Pacific International Exposition the following year;[1] the U.S. Army utilized the line for construction of the Port of Embarkation.[2] The tunnel operated as part of the State Belt Railroad until the route's suspension in 1993.


Fort Mason extension
Fort Mason
Fort Mason Tunnel
Van Ness
Hyde and Beach
Jones and Beach
E Embarcadero F Market & Wharves

In 2012, the National Park Service released a final environmental impact report on providing extended service through the tunnel to the San Francisco Municipal Railway F Market & Wharves line.[3] The cost of refurbishment and extension of the rail line was estimated at $60 million in 2017.[4]


  1. ^ Saperstein, Susan. "San Francisco Tunnel History and Miscellany". Guidelines. SF City Guides. Retrieved 5 August 2015.
  2. ^ "The San Francisco Port of Embarkation". National Park Service. Retrieved 5 August 2015.
  3. ^ "Extension of F-Line Streetcar Service to Fort Mason Center" (PDF). National Park Service. Retrieved 15 September 2020.
  4. ^ Chappell, Jim (28 June 2016). "Bring streetcars to Fort Mason". The San Francisco Examiner. Retrieved 4 June 2017.