====Late 1960s to 1990s====The second half of the Chrystie Street Connection opened on July 1, 1968, and the ', which had run along Nassau Street to Broad Street, was relocated through the new connection to the IND Sixth Avenue Line (and renamed the KK).
Вторая половина соединения Chrystie Street была открыта 1 июля 1968 года, и маршрут JJ был перемещен через это соединение на IND Sixth Avenue Line (и переименован КК).