Route 171 is a state highway in New Jersey, United States. It runs just under as an extension of U.S. Route 130 (US 130) past its northern terminus at US 1 in North Brunswick Township. The state highway ends along Georges Road near the border of North Brunswick Township and the city of New Brunswick. The route formerly extended into downtown New Brunswick ending at an intersection with Route 27, though the route was mostly unsigned inside New Brunswick. The route is a major thoroughfare in North Brunswick. The route originated as an alignment of pre-1927 Route 1 and later of US 130. After US 130 was truncated, the alignment, which had also been designated Route 25M, was later re-designated as Route 171.
Route description
thumb|left|View north at the south end of Route 171 at US 130 and US 1 in North Brunswick
Route 171 begins at an interchange with US 130 and US 1 in North Brunswick (the official beginning being at the ramp from southbound US 1). The route, which continues as a right-of-way for US 130, heads northward along Georges Road as a four-lane road (two lanes in each direction) passing retail and office buildings and an apartment complex. At an intersection with Cranbury Cross Road, Route 171 turns to the northeast. The route heads northward, passing the Brunswick Shopping Center and intersects County Route 606 (CR 606; Milltown Road). The route continues to the northwest through North Brunswick narrowing to one lane in each direction with a center turn lane. Route 171 passes some retail businesses, the Van Liew Cemetery, and a residential neighborhood. After an intersection with Nassau Street, the road passes Elmwood Cemetery. Around the location where the center turn lane ends, state maintenance of Georges Road ends, therefore terminating the Route 171 designation, however the road continues into the city of New Brunswick.