 Route 4 is a state highway in Bergen County and Passaic County , New Jersey , United States . The highway stretches 10 @.@ 83 mi ( 17 @.@ 43 km ) from Route 20 ( McLean Boulevard ) in Paterson east to an interchange with Interstate 95 , U.S. Route 1 / 9 , U.S. Route 46 , and U.S. Route 9W at the George Washington Bridge approach in Fort Lee . The route is a four- to six @-@ lane 40 to 50 mph ( 64 to 80 km / h ) divided highway its entire length , with the portion east of the Route 208 interchange in Fair Lawn a partial freeway consisting of interchanges and right @-@ in / right @-@ out intersections with a few businesses along the road , particularly in Paramus , where the route passes through a major shopping area consisting of numerous malls , Hackensack , Englewood , and Fort Lee . West of Route 208 , the route is a surface arterial that runs through commercial areas . Route 4 intersects many important roads , including Route 208 in Fair Lawn and the Garden State Parkway and Route 17 in Paramus . The highway is officially named the Mackay Highway , but is rarely referred to as such . 
