 Southbound service uses Lexington Avenue from East 125th to 124th Streets, then uses Third Avenue, Bowery, and Park Row.The Third Avenue Railroad opened a line in 1853, from Astor House at Broadway and Park Row to 86th Street, running north along Park Row, Bowery, where it shared trackage with the Second Avenue Line, and Third Avenue.In 1859, an extension to East Harlem opened.