By 1971, the road was completed between the Garden State Parkway and I-80, at which time it received the Route 20 designation; the rest was cancelled in 1978 due to feared community disruption.

[1][2] Past US 46, the road crosses a brook and CR 509 (Broad Street) splits off, with Route 19 interchanging with the Garden State Parkway.

[1] Route 19 continues past the Garden State Parkway as a six-lane freeway surrounded by trees, coming to a northbound exit and southbound entrance with CR 509.

Here, the route has a southbound exit and northbound entrance with CR 621 (Valley Road) before becoming an eight-lane freeway and passing to the east of Garret Mountain Reservation.

This interchange received the Prize Bridge Award in the category of Grade Separation from the American Institute of Steel Construction in 1996.