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Interborough Rapid Transit Company

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Wikipedia logo This page uses content from Wikipedia. The original article was at Interborough Rapid Transit Company. The list of authors can be seen in the page history. As with Metro Wiki, the text of Wikipedia is available under the Creative Commons Attribution-Share Alike License 3.0 (Unported) (CC-BY-SA).

The Interborough Rapid Transit Company (IRT) was the operator of the original underground New York City Subway line that opened in 1904, as well as earlier elevated railways and additional rapid transit lines in New York City. The IRT was purchased by the City in June 1940. The former IRT lines (the numbered lines in the current subway system) are now the IRT Division of the New York City Transit Authority, also known as the A Division.

The first IRT subway ran between City Hall and 145th Street at Broadway, opening on October 27, 1904. It opened following more than twenty years of public debate on the merits of subways versus the existing elevated rail system and on various proposed routes.

It acquired the pre-existing Manhattan Elevated by lease, gaining a monopoly on rapid transit in Manhattan. The Manhattan el was the operator of four elevated railways in Manhattan with an extension into the Bronx. The IRT coordinated some services between what became its subway and elevated divisions, but all the lines of the former Manhattan el have since been dismantled.

The IRT today operates as a subway in Manhattan, except for a short stretch across Harlem at 125th Street and in northernmost Manhattan. Its many lines in the Bronx are predominantly elevated, with some subway, and some railroad-style right-of-way inherited from the defunct New York, Westchester and Boston Railway, which now comprises the IRT Dyre Avenue Line. Its two Brooklyn lines are in subway with a single elevated extension that reaches up to New Lots Avenue, and the other reaching Flatbush Avenue via the underground Nostrand Avenue Line. The Flushing Line, its sole line in Queens, is entirely elevated except for a short portion approaching its East River tunnel and its terminal at Main Street-Flushing (the whole Manhattan portion of the line is in subway). The Flushing Line has had no physical connection to the rest of the IRT since 1942, when service on the Second Avenue El was discontinued; today, its sole connection to the rest of the system is to the BMT at Queensborough Plaza.

The IRT was purchased by the City in June 1940. The former IRT lines (the numbered lines in the current subway system) are now the IRT Division of the New York City Transit Authority, also known as the A Division.

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MTA: New York City Subway
Routes NYCS Route 1NYCS Route 2NYCS Route 3NYCS Route 4NYCS Route 5NYCS Route 6NYCS Route 6dNYCS Route 7NYCS Route 7dNYCS Route ANYCS Route BNYCS Route CNYCS Route DNYCS Route ENYCS Route FNYCS Route GNYCS Route JNYCS Route LNYCS Route MNYCS Route NNYCS Route QNYCS Route RNYCS Route Z
Shuttles NYCS Route S (42nd StreetFranklin AvenueRockaway Park)
Defunct NYCS 89HKTVWJFK Express
BMT 12345678910111213141516Brooklyn Loops
Shuttles 63rd StreetBowling GreenCulverGrand StreetOther
Unused 10 • 11 • 12 • 13 • P • U • X • Y
Expansion Second Avenue Subway7 Subway ExtensionFulton Street Transit Center
Divisions A Division: IRTB Division: BMTIND (Second System)
Lists Inter-division connectionsInter-division transfersLinesServicesStationsTerminalsYards
Miscellaneous AccessibilityChainingHistoryMetroCardNomenclatureRolling stock
Other NYC transit Rail: AirTrain JFKAmtrakLIRRMetro-NorthNJT (rail)PATHStaten Island Railway
Other: NJT (buses)NYCT busesRoosevelt Island Tramway


Defunct New York City Transit Operators
Steam railroads later converted to rapid transit systems Brooklyn and Brighton Beach RailroadBrooklyn, Bath and Coney Island Rail RoadBrooklyn, Bath and Coney Island RailroadBrooklyn, Bath and West End RailroadBrooklyn, Flatbush and Coney Island RailwayConey Island Elevated RailwayGreenwood and Coney Island RailroadMarine RailwayNew York and Coney Island RailroadNew York and Manhattan Beach RailwayNew York and Sea Beach RailroadNew York and Sea Beach RailwayNew York, Brooklyn and Manhattan Beach RailroadProspect Park and Coney Island RailroadSea Beach RailwaySea View Railroad
Rapid transit systems Brooklyn-Manhattan Transit CorporationBrooklyn Rapid Transit CompanyBrooklyn Union Elevated RailroadInterborough Rapid Transit CompanyKings County Elevated Railway
Streetcar systems

Avenue C Railroad CompanyBelt Line RailwayBleecker Street and Fulton Ferry RailroadBroadway and Seventh Avenue RailroadBroadway Surface RailroadBroadway Railway CompanyBrooklyn and North River RailroadBrooklyn & Queens Transit CorporationBrooklyn Central and Jamaica RailroadBrooklyn City Rail RoadBrooklyn Crosstown RailroadBrooklyn, Queens County and Suburban RailroadBush Terminal RailroadBushwick RailroadCalvary Cemetery, Greenpoint and Brooklyn RailroadCentral Crosstown Railroad CompanyCentral Park, North and East River RailroadChambers Street and Grand Street Ferry RailroadChristopher and Tenth Street Railroad CompanyColumbus and Ninth Avenue RailroadConey Island and Brooklyn Rail RoadConey Island, Fort Hamilton and Brooklyn RailroadDry Dock, East Broadway and Battery RailroadEighth Avenue Railroad CompanyFlushing and College Point Electric RailwayFort George and Eleventh Avenue RailroadForty-Second Street and Grand Street Ferry Railroad CompanyFourth Avenue Street RailwayFulton Street RailroadGrand Street and Newtown Rail RoadGreenpoint and Lorimer Street RailroadHouston, West Street and Pavonia Ferry RailroadInterurban Street RailwayJamaica Central Railways CompanyKings County Electric RailwayLexington Avenue and Pavonia Ferry RailroadLong Island City and Calvary Cemetery RailroadLong Island City and Maspeth RailroadLong Island City and Newtown RailwayLong Island Electric RailwayManhattan and Queens Traction CompanyManhattan Bridge Three Cent LineMarine RailwayMaspeth Avenue and Toll Bridge CompanyMaspeth Railroad and Bridge CompanyMetropolitan Crosstown Railway Metropolitan Street RailroadMetropolitan Street RailwayNassau Electric RailroadNewtown RailwayNew York City Department of Plant and StructuresNew Williamsburgh and Flatbush RailroadNew York and Harlem Railroad CompanyNew York and North Shore Traction CompanyNew York and Queens County Railway CompanyNew York and Queens Transit CorporationNew York City Railway CompanyNew York Railways CompanyNinth Avenue Railroad CompanyPark Avenue RailroadPort Richmond & Prohibition Park Electric RailroadQueensboro Bridge Railway CompanyRichmond County RailroadRichmond Light & Railroad CompanyRichmond RailwaysRikers Avenue and Sanford Point RailroadSecond Avenue RailroadSixth Avenue Railroad CompanySouth Brooklyn Street RailroadSouth Ferry Railroad CompanyStaten Island Electric RailroadStaten Island Midland RailroadStaten Island Midland RailwayStaten Island Traction CompanySteinway and Hunters Point RailroadSteinway Railway CorporationThird Avenue RailroadThird Avenue RailwayThird Avenue Transit CorporationThirty-fourth Street Crosstown RailwayTwenty-eighth and Twenty-ninth Streets Crosstown RailroadTwenty-Third Street Railroad CompanyUnion Railroad (Brooklyn)Union Railway Company of New York CityVan Brunt Street and Erie Basin Rail Road

Bus systems Affiliated Bus Transit CorporationArgus Line Transportation CorporationAvenue B & East Broadway Transit CompanyB&L TransportationBilow Bus LineBrooklyn Bus CorporationCommand Bus CompanyComprehensive Omnibus CorporationConcourse Bus LinesCourier Bus CompanyEastern Parkway, Brownsville and East New York Transit Relief AssociationEast Side Omnibus CorporationFifth Avenue Coach CompanyFifth Avenue Coach Lines, IncorporatedFlushing Heights Bus CompanyGeneral Omnibus CorporationGreater Cities Bus LinesGreen Bus LinesHamilton Bus CompanyIndependent BusesIsle Transportation Co.Jamaica Bus LineJamaica BusesKings Coach CompanyLiberty Bus TransportationLiberty Lines ExpressLong Island Coach CompanyMadison Avenue Coach Company, IncorporatedManhattan & Queens Bus CorporationMidland Coach Corporation‎Municipal Motorbus CompanyNational City Bus LinesNew York Bus ServiceNew York City Department of Plant and StructuresNew York City Omnibus CorporationNorth Shore Bus CompanyPioneer Bus CompanyPlum Beach Auto StageQueens Auto TractionQueens Bus CorporationQueens Bus LinesQueens-Nassau Transit LinesQueens Surface CorporationQueens Transit CorporationRauchwerger Bus CompanyRichmond Hill Bus LineRuoff BrothersS&C BusesS&F TransportationStaten Island Coach CompanySteinway Omnibus CorporationSteinway Transit CorporationSurface Transit, IncorporatedSurface Transportation Corporation of New YorkTompkins Bus CompanyTriangle Bus CompanyTriboro Coach CorporationWoodside-Astoria Transportation CompanyZ&M Coach Company

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