State Highways of New Jersey

In Princeton, the highway becomes just one lane for the last quarter-mile approaching its junction with US 206, thanks to a narrow bridge over a stream that flows into the Stony Brook. The road is one-way northbound at that point, and there is no signage in either direction to indicate that the road is part of the 500-series system. Province Line Road in Lawrence would be a logical alternative, but that highway is not county-maintained.

Mile	Street Name	Feature
	Road continues eastward as Main St
32.36	Northern terminus of , Bound Brook Boro, Somerset Co
32.36	Main St	Mountain Ave		Main St
31.92	Talmage Ave	Vosseller Ave		Vosseller Ave
31.48		Bound Brook Boro, Somerset Co Bridgewater Twp, Somerset Co
31.48		Green Brook	bridge	Green Brook
31.41	Main St		underpass
31.15	Main St	Promenade Blvd
30.93	Main St	Foothill Rd		Baseball park entrance
30.64	Main St	Branch Raritan River	bridge	Branch Raritan River
30.59	Main St	Chimney Rock Rd		Chimney Rock Rd
30.58	Main St	Raritan Valley Railroad	at grade	Raritan Valley Railroad
29.89	Main St Finderne Ave	Finderne Ave Main St
29.63	Finderne Ave	Jersey Central Railroad	overpass	Jersey Central Railroad
29.39	Finderne Ave	Plant entrance		Plant entrance
29.26		Bridgewater Twp, Somerset Co Manville Boro, Somerset Co
29.26		Raritan River	bridge	Raritan River
28.83	Main St	Dukes Pkwy		Shopping center entrance
28.59	Main St	Brooks Blvd		Plant entrance
28.51	Main St	Lehigh Valley Railroad	underpass	Lehigh Valley Railroad
28.26	Main St	Camplain Rd		Camplain Rd
27.98	Main St	Royces Brook	culvert	Royces Brook
27.87	Main St	Falcon Rd
27.83	Main St	Reading Railroad	underpass	Reading Railroad
27.54	Main St			Wilhowsky Rd
27.35		Manville Boro, Somerset Co Hillsborough Twp, Somerset Co
25.92	Millstone River Rd	SPURSomerset Courthouse Rd
25.81		Hillsborough Twp, Somerset Co Millstone Boro, Somerset Co
25.52	Main St	Millstone Bypass		Amwell Rd
25.28	Main St	Amwell Rd
24.88		Millstone Boro, Somerset Co Hillsborough Twp, Somerset Co
23.58	Millstone River Rd	Branch Millstone River	bridge	Branch Millstone River
21.59	Millstone River Rd	Hillsborough Twp, Somerset Co Montgomery Twp, Somerset Co
19.97	Millstone River Rd			Griggstown Rd
19.85	Millstone River Rd	Griggstown Rd
17.47	Millstone River Rd	Orchard Rd
17.33	Orchard Rd | Bridgepoint Rd	Van Horne Rd	southbound
17.13		Bedens Brook	bridge	Bedens Brook
16.45	State Rd	Shopping center entrance		Shopping center entrance
16.31	State Rd	Washington St		Washington St
16.20	State Rd			Shopping center entrance
15.88	State Rd			Wall St
15.46	State Rd	Montgomery Twp, Somerset Co Princeton Borough Twp, Mercer Co
15.46	State Rd	Cherry Valley Rd		Cherry Valley Rd
13.73	State Rd	Branch Stony Brook	culvert	Branch Stony Brook
13.34	State Rd	Cherry Hill Rd		Cherry Hill Rd
12.92		Mountain Ave
12.40	Bayard Ln	Hodge Rd		Paul Robeson Pl
12.18	Bayard Ln			Nassau St
12.08	Stockton St	Monument Dr
11.97	Stockton St	Library Pl		Library Pl
11.72	Stockton St	Elm Rd
11.30	Stockton St	Edgerstoune Rd
10.88	Quaker Rd	Stockton St
10.42	Quaker Rd	Mercer St		Mercer St
9.08	Quaker Rd	Stony Brook	bridge	Stony Brook
8.64		Princeton Borough Twp, Mercer Co Lawrence Twp, Mercer Co		Princeton Twp, Mercer Co West Windsor Twp, Mercer Co
8.64		Delaware & Raritan Canal	bridge	Delaware & Raritan Canal
8.41	Quaker Bridge Rd	Province Line Rd		Nassau Park Blvd
8.32	Quaker Bridge Rd	Lawrence Twp, Mercer Co West Windsor Twp, Mercer Co
8.22	Quaker Bridge Rd	Shopping center entrance
8.05	Quaker Bridge Rd	Brunswick Pike		Brunswick Pike
7.78	Quaker Bridge Rd	West Windsor Twp, Mercer Co Lawrence Twp, Mercer Co
7.52	Quaker Bridge Rd	Grovers Mill Rd		Clarksville Rd
7.08	Quaker Bridge Rd	Housing entrance
6.60	Quaker Bridge Rd	Lawrence Station Rd
6.70	Quaker Bridge Rd	Pennsylvania Railroad	overpass	Pennsylvania Railroad
6.58	Quaker Bridge Rd	Plant entrance		Village Rd West
6.50	Quaker Bridge Rd			West Windsor Twp, Mercer Co Lawrence Twp, Mercer Co
6.11	Quaker Bridge Rd	Plant entrance
6.00	Quaker Bridge Rd	Lawrence Twp, Mercer Co Hamilton Twp, Mercer Co
6.00	Quaker Bridge Rd	Assunpink Creek	bridge	Assunpink Creek
5.56	Quaker Bridge Rd	Youngs Rd		Youngs Rd
4.75	Quaker Bridge Rd	Quakerbridge Plaza Dr
4.39	Quaker Bridge Rd	Sloan Ave		Flock Rd
4.24	Quaker Bridge Rd	Miry Run	culvert	Miry Run
3.51		Nottingham Way		Edinburg Rd Nottingham Way
3.30	Whitehorse-Mercerville Rd
2.97	Whitehorse-Mercerville Rd	Estates Blvd		Estates Blvd
2.70	Whitehorse-Mercerville Rd	Klockner Rd		Klockner Rd
2.14	Whitehorse-Mercerville Rd			Cypress Ln
1.74	Whitehorse-Mercerville Rd	Municipal Dr
1.41	Whitehorse-Mercerville Rd	Kuser Rd		Kuser Rd
1.49	Whitehorse-Mercerville Rd	Olden Ave
0.65	Whitehorse-Mercerville Rd	Hilton Ave		Whitehorse-Hamilton Square Rd
0.42	Whitehorse-Mercerville Rd	Arena Dr		Arena Dr
0.13	Whitehorse-Mercerville Rd	Clinton Ave
0.00	Whitehorse-Mercerville Rd	South Broad St	circle	South Broad St
0.00	Southern terminus of , Hamilton Twp, Mercer Co
	Road continues southward as

SPUR

Mile	Street Name	Feature
	Road continues northward as Millstone River Rd
0.45	Northern terminus of SPUR, Hillsborough Twp, Somerset Co
0.45	Somerset Courthouse Rd	Millstone River Rd		Millstone River Rd
0.26	Somerset Courthouse Rd	Hamilton Rd
0.25	Somerset Courthouse Rd	Hillsborough Twp, Somerset Co Millstone Boro, Somerset Co
0.00	Somerset Courthouse Rd	Millstone Bypass		Millstone Bypass
0.00	Southern terminus of SPUR, Millstone Boro, Somerset Co