The routes follow Intervale Road briefly before making a left turn to resume onto Parsippany Boulevard. The road crosses over the Jersey City Reservoir, which supplies drinking water to Jersey City, and enters Boonton, where the road becomes Washington Street. This street carries the two routes through residential areas before coming to another interchange with I-287 that also features access to the southbound direction and access from the northbound direction.
The two routes continue north on Parsippany Boulevard, a two-lane road that comes to an intersection with US 46, where the road is briefly state maintained. Past US 46, the road continues north, intersecting ramps that provide access to and from southbound I-287. Here, the road becomes county maintained again.