New York State Route 131

New York State Route 131
Map of St. Lawrence County in northern New York with NY 131 highlighted in red
Route information
Maintained by NYSDOT
Length:	12.45 mi (20.04 km)
Existed:	late 1950s – present
Major junctions
West end:	NY 37 in Louisville
East end:	NY 37 in Massena
Location
Counties:	St. Lawrence
Highway system
New York Highways Interstate U.S. State Reference Parkways ← NY 130 NY 132 →

New York State Route 131 (NY 131) is a 12.45-mile (20.04 km) long state highway in St. Lawrence County, New York, in the United States. It serves as a coastal alternate route to NY 37, going around the village of Massena instead of through it. NY 131 leaves NY 37 in the town of Louisville and rejoins it in the town of Massena. Town Line Road, a county-maintained highway straddling the Louisville–Massena town line, serves as a connector between NY 131 and Massena village.

NY 131 begins at an intersection with NY 37 (Seaway Trail) in the hamlet of Louisville Corner in the town of Louisville. The route progresses northeastward on a parallel of NY 37 and the St. Lawrence River as a two-lane roadway. A short distance after the terminus, NY 131 intersects with the Wilson Hill Causeway, which connects to Wilson Hill Island. The route passes a nearby marina and some residences, soon entering the hamlet of Tucker Terrace. In Tucker Terrace, NY 131 makes a gradual curve to the southeast, passes the Massena Country Club, and intersects with County Route 41 (CR 41). Paralleling the Richards Landing Bike Trail, NY 131 makes another bend, this time back to the northeast past more riverside homes. After a distance, the amount of residences recedes, and NY 131 intersects with CR 43 (Town Line Road), which connects the route to the village of Massena. After the crossing, NY 131 leaves Louisville for the town of Massena, crossing the Massena Power Canal.