- Tremont Street Subway
Infobox_nrhp | name =Tremont Street Subway
nrhp_type = nhl
caption = Aflying junction on the Tremont Street Subway, approaching thePleasant Street Incline
location=Boston, Massachusetts
lat_degrees = 42
lat_minutes = 21
lat_seconds = 23
lat_direction = N
long_degrees = 71
long_minutes = 3
long_seconds = 47
long_direction = W
locmapin = Massachusetts
area =
built =1897
architect= Carsen,Howard A.
architecture= Classical Revival
designated=January 29 ,1964
added =October 15 ,1966
governing_body = Local
refnum=66000788cite web|url=http://www.nr.nps.gov/|title=National Register Information System|date=2007-01-23|work=National Register of Historic Places|publisher=National Park Service]The Tremont Street Subway is a tunnel in
Boston 's subway system, and is the oldest subway tunnel in North America, opening onSeptember 1 1897 . It was originally built as a tunnel to get streetcar lines off the streets, rather than arapid transit line. It now forms the central part of the Green Line, connecting the Park Street station to Government Center.The tunnel originally serviced stations at Park Street,
Scollay Square , and Adams Square. The latter two stations were substantially altered when Government Center and City Hall replaced Scollay Square and Adams Square in1963 . Adams Square was closed altogether, and Scollay Square station was completely renovated and altered, and the northbound tunnel to Haymarket was rerouted, though the southbound tunnel is still original. The original entrances were in the Public Gardens, at North Station/Canal Street, and at Pleasant Street. The Pleasant Street tunnel still exists as of March 2006, but is disused and thePleasant Street Incline is sealed. The other portals have been closed as the line has been further extended.From its inception, the subway used trolleys powered by
electricity fromoverhead lines , made possible by the invention of thetrolley pole in1880 byFrank J. Sprague . However, the modern line has been pantograph-only since the trolley wires were removed in the 1990s. [http://ocw.mit.edu/OcwWeb/Civil-and-Environmental-Engineering/1-012Spring2002/Readings/detail/green_line_project.htm]The Tremont Street Subway is now a
National Historic Landmark .The original owner was the private West End Street Railway, later the
Boston Elevated Railway . Public ownership began in 1947 with the Metropolitan Transit Authority, later reconstituted as the modernMassachusetts Bay Transportation Authority .References
External links
* [http://www.celebrateboston.com/mbta/greenline/tremontstreetsubway.htm Celebrate Boston's description and image gallery of the Tremont Street Subway]
* [http://www.railroad.net/forums/viewtopic.php?t=48384 Photos and discussion of the Tremont Street subway tunnel]
* [http://www.abandonedsubwaytunnels.com/subwaysite/boylston/boylston_thumbs.html Photos of the Tremont Street subway]
Wikimedia Foundation. 2010.