The first state route to serve the hamlet of East Chatham was NY 204, an east–west route assigned as part of the 1930 renumbering of state highways in New York. NY 204 began at NY 66 in Malden Bridge and followed Albany Turnpike Road to East Chatham, from where it continued southeast to the Massachusetts state line by way of a series of roads in the modern I-90 corridor.
The initial state route to serve the hamlet of East Chatham was NY 204, an east–west route assigned as part of the 1930 renumbering of state highways in New York. NY 204 began at NY 66 in Malden Bridge and followed Albany Turnpike Road to East Chatham, from where it continued southeast to the Massachusetts state line by way of a series of roads in the modern I-90 corridor.