Sunset Tunnel

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Sunset Tunnel
Sunset Tunnel West-1.jpg
The western portal of the Sunset Tunnel
Location San Francisco, California
Coordinates East portal:
37°46′09″N 122°26′04″W / 37.76917°N 122.43444°W / 37.76917; -122.43444
West portal:
37°45′59″N 122°26′55″W / 37.76639°N 122.44861°W / 37.76639; -122.44861
System Muni Metro
Start Duboce Ave & Noe St
Duboce Park
End Carl St & Cole St
Richard Gamble Memorial Park
No. of stations None
Opened October 21, 1928; 89 years ago (1928-10-21)
Owner San Francisco Municipal Transportation Agency
Operator San Francisco Municipal Railway
Character Underground tunnel for
light rail/streetcar line
Line length 4,232 ft (1,290 m; 0.8015 mi)
No. of tracks 2
Track gauge 4 ft 8 12 in (1,435 mm)
(standard gauge)
Electrified Overhead lines, 600 V DC
Tunnel clearance 23 ft (7.0 m)[1]

The Sunset Tunnel is a 4,232 ft (1,290 m)-long[1] light rail/streetcar tunnel in San Francisco, California. The tunnel runs under the steep hill adjacent to Buena Vista Park and is used exclusively by the N Judah Muni Metro line.

The tunnel was opened on October 21, 1928 in a ceremony presided over by Mayor James Rolph.[1] The eastern entrance is located at Duboce and Noe streets on the south side of Duboce Park in the Duboce Triangle neighborhood, and the western portal is located in Richard Gamble Memorial Park near the intersection of Carl and Cole streets in the Cole Valley neighborhood.

Access to the tunnel is restricted to San Francisco Municipal Railway light rail trains only. Despite the access limitations, this tunnel is not well protected, and is constantly vandalized and graffiti-strewn. From time to time, automobile drivers manage to drive their cars into the tunnel.[2][3]

The tunnel received seismic refitting and other renovations, which were completed in 2017. A combination of additional needed work that was discovered during construction, plus nearby residents challenging a night work permit, resulted in delays to the project and an additional $4 million cost for a total of $23.3 million.[4]

See also[edit]

The N Judah entering the eastern portal of the Sunset Tunnel, at the border of the Castro and Western Addition districts.


  1. ^ a b c Wallace, Kevin (March 27, 1949). "San Francisco History - City's Tunnels". San Francisco Chronicle. Retrieved July 14, 2008. 
  2. ^ Terry McSweeney (April 1, 2008). "Drunk drives 2 miles through train tunnel". ABC 7 Local News. Archived from the original on August 26, 2012. 
  3. ^ Chinn, Jerold (September 30, 2016). "Problems persist with drivers attempting to enter Muni tunnels". Retrieved October 4, 2016. 
  4. ^ Cabanatuan, Michael (January 16, 2018). "Costs to upgrade Muni's Sunset Tunnel soar — partly thanks to neighbors". San Franciscop Chronicle. 

Route map: Google

KML is from Wikidata