Route 21 is a state highway in Northern New Jersey, running 14.35 mi (23.09 km) from the Newark Airport Interchange with US 1-9 and US 22 in Newark, Essex County to an interchange with US 46 in Clifton, Passaic County. The route is a four- to six-lane divided highway known as McCarter Highway on its southern portion in Newark that serves as a connector between the Newark and Paterson areas, following the west bank of the Passaic River for much of its length.
Route 21 is a state highway in Northern New Jersey, running 14.35 mi (23.09 km) from the Newark Airport Interchange with US 1-9 and US 22 in Newark, Essex County to an interchange with US 46 in Clifton, Passaic County. The route is a four- to six-lane divided highway known as McCarter Highway on its southern portion in Newark that serves as a connector between the Newark and Paterson areas, following the west bank of the Passaic River for much of its length.
Source: Wikipedia "New Jersey Route 21" · CC BY-SA 4.0
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