village of Massena. Just past the village line, NY 420 crosses the St. Lawrence Subdivision, a railroad line owned by CSX Transportation. The highway continues on, curving northward to cross the Raquette River. It curves back to the northwest on the northern riverbank and passes by a mixture of homes and commercial establishments before intersecting NY 37 south of the village center. NY 420 ends here; however, the road continues north into the heart of the village as Main Street. History In 1908, the New York State Legislature created Route 32, an unsigned legislative route extending from North Lawrence to Ogdensburg via Winthrop and Massena. When the first set of posted routes in New York were assigned in 1924, all of Route 32 west of Massena became part of NY 3 while the section east of Winthrop was incorporated into NY 2. The Winthrop–Massena segment of Route 32 did not initially receive a designation; however, by 1926, it had become the northwesternmost portion of NY 56, a highway linking Brighton to Massena via Nicholville and Winthrop. In 1927, NY 56 was realigned to proceed west from Nicholville on modern NY 11B to a new terminus in the village of Potsdam. The former routing of NY 56 between Winthrop and Massena was left unnumbered until the 1930 renumbering of state highways in New York when it was designated as NY 420. The initial northern terminus of NY 420 was in the center of Massena at the junction of Orvis and Main Streets, where it ended at NY 37. In the mid-1950s, construction began on a new alignment for NY 37 around the southern edge of the village. The highway opened to traffic by 1958; however, NY 420 continued to extend past the bypass into Massena until the early 1960s, when it was cut back to its junction with NY 37's new routing. The former routing of NY 420 in Massena is still state-maintained as part of NY 970B, an unsigned reference route designation for all of Main Street between NY 37 and NY 37B. On September 1, 1982, ownership and maintenance of County Route 51 (CR 51) from CR 110 north to US 11 in Winthrop was transferred from St. Lawrence County to the state of New York as part of a highway maintenance swap between the two levels of government. Also transferred to the state as part of the swap