The Sunset Tunnel is a tunnel in San Francisco, California, USA that is used by the N JudahMuni Metro line. It lies directly beneath Buena Vista Park and the steep hill that the park is located on. The western entrance to the tunnel is located at the intersection of Cole and Carl Streets and the eastern entrance is at Duboce and Noe Streets. Access to the tunnel is restricted to light-rail only. San Francisco skyline. ... The N Judah is a Muni Metro line in San Francisco, California operated by the San Francisco Municipal Railway. ... Muni Metro Map Muni Metro is a mass transit system operated in the city of San Francisco by the San Francisco Municipal Railway. ... The view from Buena Vista Park. ... A train of Light Rail, KCRC, Hong Kong. ...
Islington Tunnel was opened in 1820 along with the completion of the canal, a procession of boats passing through with a band playing, to be met by a salute of cannon fire as they emerged at the eastern end.
Tunnels were built by the process of sinking shafts at intervals to the required depth, and then lowering men and equipment down to dig, and, it was hoped, meet.
The tunnel was at first operated by "legging", whereby men lying on their backs on planks aboard the boat walked the vessel through against the side walls.