Interborough Rapid Transit
| Interborough Rapid Transit Company | |
|---|---|
IRT Lo-Voltage motor cars at Mosholu Parkway station
|
|
| Overview | |
| Type | Underground and above-ground metro |
| Status | In operation |
| Services | 8 |
| Operation | |
| Opened | 1904 |
| Closed | 1940 (acquisition by the NYC Board of Transportation) |
| Owner | City of New York |
| Operator(s) | New York City Transit Authority |
| Depot(s) |
239th Street Yard, 240th Street Yard, Corona Yard, East 180th Street Yard, Jerome Yard, Livonia Yard, Westchester Yard |
| Rolling stock | R62, R62A, R142, R142A, R188 |
| Technical | |
| Track gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Minimum radius | 147.25 ft (44.88 m) |
The Interborough Rapid Transit Company (IRT) was the private 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 routes in the current subway system) are now the A Division or IRT Division of the Subway.
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.
Founded on May 6, 1902, by August Belmont, Jr., the IRT's mission was to operate New York City's initial underground rapid transit system after Belmont's and John B. McDonald's Rapid Transit Construction Company was awarded the rights to build the railway line in 1900, outbidding Andrew Onderdonk. On April 1, 1903, over a year before its first subway line opened, the IRT acquired the pre-existing elevated Manhattan Railway 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.
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