High Quality Content by WIKIPEDIA articles! The New York and Harlem Railroad (now the Metro-North Railroad Harlem Line) was one of the first railroads in the United States, and possibly also the world`s first street railway. Designed by John Stephenson, it was opened in stages between 1832 and 1852 between Lower Manhattan to and beyond Harlem. Initially using horses, the line was partially converted to use steam engines and then electricity, using a Julien electric traction car. In 1907 the then leaseholders of line, New York City Railway went into receivership. Following a further receivership in 1932 the New York Railways Corporation converted the line to bus operation. The Murray Hill Tunnel now carries a lane of road traffic, but not the buses.