 The portion of modern NY 180 from Dexter to the Brownville community of Limerick was initially part of NY 12E and had been part of NY 3 prior to 1930.NY 179 was extended south to Baggs Corner , supplanting NY 409 and overlapping NY 12E between Chaumont and Dexter.NY 179 was also extended northward to Clayton by way of an overlap with NY 12 around this time.