State highway in Westchester County, New York, US
New York State Route 433 (NY 433) is a state highway located entirely in the town of North Castle in Westchester County, New York, United States. It runs for 0.70 miles (1.13 km) from the Connecticut state line, where it continues south into Greenwich as Riversville Road, to an intersection with NY 22 near the hamlet of Armonk. NY 433 is one of six New York touring routes less than one mile (1.6 km) in length. The route was originally designated as part of NY 128 in the 1930s. NY 128 was truncated to its junction with NY 22 in Armonk in January 1971, at which time its former routing along North Greenwich Road was redesignated as NY 433.