Interborough Rapid Transit Company
TypeUnderground and above-ground metro
StatusIncorporated into the New York City Subway
Opened1903; 116 years ago (1903)
(acquisition of the Manhattan Railway Company)
Closed1940; 79 years ago (1940)
(acquisition by the NYC Board of Transportation)
OwnerCity 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 stockR62, R62A, R142, R142A, R188
Track gauge4 ft 8 12 in (1,435 mm) standard gauge
Minimum radius147.25 ft (44.88 m)