 The road widens to six lanes and the route intersects County Route 510 (Market Street) near Newark Penn Station and continues north into downtown Newark, splitting from the Northeast Corridor rail line.It crosses Raymond Boulevard and the route meets County Route 508 (Center Street), with which it forms a concurrency.Route 21 and County Route 508 head along the west bank of the Passaic River, passing by the New Jersey Performing Arts Center.