    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 lines in the current subway system) are now the a division or irt division of the subway. == history == 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.cudahy, pp.20â22 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 e
Belmont_family Defunct_New_York_railroads Defunct_public_transport_operators_in_the_United_States Historic_American_Engineering_Record_in_New_York History_of_the_New_York_City_Subway Interborough_Rapid_Transit_Company