page_title: New Jersey Route 12
section_title: Route description
hierarchical_section_title: New Jersey Route 12 / Route description
caption_attribution_description: English: View east along New Jersey State Route 12 (Frenchtown-Flemington Road) just east of Hunterdon County Route 579 (Croton Road/Easton-Trenton Turnpike) in Raritan Township, Hunterdon County, New Jersey
context_page_description: Route 12 is a state highway located in Hunterdon County, New Jersey, United States. It runs 11.69 mi from the Uhlerstown–Frenchtown Bridge at the Delaware River border with Pennsylvania in Frenchtown east to an intersection with U.S. Route 202 and Route 31 at the Flemington Circle in Flemington. The route is mostly a two-lane undivided road that passes through rural areas of woodland and farmland. It intersects Route 29 and County Route 513 in Frenchtown, CR 519 in Kingwood Township, CR 579 on the border of Delaware Township and Raritan Township, and CR 523 in Raritan Township.
  The route was designated in 1927 to run from Frenchtown to Raritan, Somerset County, running along its current alignment to Flemington and following present-day US 202 between Flemington and Raritan. By the 1940s, US 202 and Route 29 replaced Route 12 east of Flemington, and the route was officially designated to end in Flemington in 1953. There are currently plans to modify or eliminate three traffic circles along the route in Flemington to ease traffic congestion.
context_section_description: Route 12 begins at the Uhlerstown–Frenchtown Bridge over the Delaware River in Frenchtown at the Pennsylvania / New Jersey border, where it connects to Pennsylvania Route 32. The bridge and short portion of its eastern approach is maintained by the Delaware River Joint Toll Bridge Commission. The route continues through the downtown area of Frenchtown as county-maintained (designated and signed by Hunterdon County as County Route 610) two-lane undivided Bridge Street. Here, it intersects Trenton Avenue which is also the northern terminus of Route 29 before turning north onto Race Street and intersecting the southern terminus of CR 513. Route 12 heads east on Kingwood Avenue and passes through residential areas. The route crosses into Kingwood Township, where it becomes maintained by the New Jersey Department of Transportation with two eastbound lanes and one westbound lane. As Route 12 climbs into the Hunterdon Plateau, it heads through a mix of woods and farms with intermittent residences, narrowing to one lane in each direction at the top of the plateau before crossing CR 519 in Baptistown.
  Route 12 continues southeast through rural areas, crossing the Lockatong Creek before intersecting CR 615, where it becomes the Samuel Hill Highway. A short distance past this intersection, the route briefly passes through the southern corner of Franklin Township before entering Delaware Township. Here, the road crosses Wickecheoke Creek before coming to an intersection with CR 579. Past this intersection, Route 12 enters Raritan Township, where it continues through rural areas with some residences. The residential development along the road increases before it reaches the Dvoor's Circle (a traffic circle) with CR 523. Past the traffic circle, the route crosses a small stream and enters Flemington. Here, Route 12 passes businesses and heads south of a park and ride lot serving Trans-Bridge Lines buses before crossing the Black River & Western Railroad and coming to the Main Street Circle, a modern-designed roundabout, where it intersects CR 611 and Reaville Avenue.  From here, the route continues east a short distance as a four-lane divided highway before ending at US 202 and Route 31 at the Flemington Circle.
caption: View east along Route 12 at CR 579 in Raritan Township
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