NY 3 remained in place up to the 1930 renumbering of state highways in New York when it was rerouted onto its modern alignment through the North Country. The portion of former NY 3 from Harrietstown to Jay, as well as a section of former NY 10 (modern NY 186) from Harrietstown to Lake Clear, was redesignated as NY 86. North of Harrietstown, the former alignment of NY 3 became NY 408 from Harrietstown to Gabriels and the western half of NY 192 from Gabriels to Paul Smiths. NY 408 was co-designated as part of NY 365 , and ultimately supplanted by NY 365 . NY 365 was rerouted in the mid-1940s, leaving the Harrietstown–Gabriels roadway unnumbered.