Twin Peaks Tunnel
Overview
Light rail
Light rail or light rail transit is a form of urban rail public transportation that generally has a lower capacity and lower speed than heavy rail and metro systems, but higher capacity and higher speed than traditional street-running tram systems...
/streetcar tunnel in San Francisco, California
San Francisco, California
San Francisco , officially the City and County of San Francisco, is the financial, cultural, and transportation center of the San Francisco Bay Area, a region of 7.15 million people which includes San Jose and Oakland...
, United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
, running under Twin Peaks. When it was opened on February 3, 1918, it was one of the longest railway tunnels in the world (Paris Métro
Paris Métro
The Paris Métro or Métropolitain is the rapid transit metro system in Paris, France. It has become a symbol of the city, noted for its density within the city limits and its uniform architecture influenced by Art Nouveau. The network's sixteen lines are mostly underground and run to 214 km ...
's line 1
Paris Metro Line 1
Paris Métro Line 1 is one of the sixteen lines composing the Paris Métro . It connects the La Défense – Grande Arche and Château de Vincennes stations. With a 16.5 km length, it constitutes an "East-West" route transportation important for the City of Paris...
, opened in 1900, beat it by a few miles, as did some of the London Underground
London Underground
The London Underground is a rapid transit system serving a large part of Greater London and some parts of Buckinghamshire, Hertfordshire and Essex in England...
lines). It was the longest U.S. railway tunnel west of New York City
New York City
New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...
. The service through it has evolved from streetcars into light rail, and while there are longer light-rail tunnels elsewhere (such as Portland's
Portland, Oregon
Portland is a city located in the Pacific Northwest, near the confluence of the Willamette and Columbia rivers in the U.S. state of Oregon. As of the 2010 Census, it had a population of 583,776, making it the 29th most populous city in the United States...
Robertson Tunnel
Robertson Tunnel
The Robertson Tunnel is a tunnel through the west hills of Portland, Oregon, U.S. for the TriMet public transit MAX Light Rail system. The tunnel is 3.1 miles long and consists of twin 21 foot diameter tunnels. There is one station within the tunnel at Washington Park, the third deepest such...
), the Twin Peaks Tunnel remains one of the world's longest streetcar or light-rail tunnels.
