State Highways of New Jersey

In the early 1950s, a bypass was built around downtown Toms River, leaving this highway as the business route through Toms River. Part of that bypass is now part of the Garden State Parkway. With the elimination of most business-route banners in New Jersey, this highway was renumbered 166.

The other stretch where the Parkway bypassed NJ 4, over the Mullica River between Port Republic and Bass River, is NJ 167.

NJ 166 is now one-way northbound over the Toms River (between South Toms River Borough and Toms River Township). Southbound traffic turns right on Water Street (SR 527), left on Irons Street, and left on Herflicke Boulevard in South Toms River in order to rejoin Atlantic City Boulevard.

Mile	Street Name	Feature
	Road continues northward as Lakewood Rd
3.73	Northern terminus of , Toms River Twp, Ocean Co
3.73	Lakewood Rd		merge
3.73	Lakewood Rd	Garden State Pkwy	underpass	Garden State Pkwy
3.02	Lakewood Rd			Maple Tree Rd
2.22	Lakewood Rd	Presidential Blvd		Old Freehold Rd
2.17	Main St			James St
1.97	Main St
1.68	Main St			Dayton Ave
1.26	Main St			Washington St
1.15	Main St	Water St		Water St
1.13		Toms River Twp, Ocean Co
		Toms River	bridge	Toms River
		South Toms River Boro, Ocean Co
1.11	Atlantic City Blvd	Main St
1.05	Atlantic City Blvd	Branch Toms River	bridge	Branch Toms River
0.77	Atlantic City Blvd	Branch Toms River	culvert	Branch Toms River
0.49	Atlantic City Blvd	South Toms River Boro, Ocean Co Beachwood Boro, Ocean Co
0.47	Atlantic City Blvd	Admiral Ave		Starboard St
0.21	Atlantic City Blvd	Beachwood Blvd		Beachwood Blvd
0.00	Atlantic City Blvd
0.00	Southern terminus of , Beachwood Boro, Ocean Co
	Road continues southward as Atlantic City Blvd