 Both NY 160 and NY 407 went unchanged until April 1, 1981, when ownership and maintenance of NY 160 northwest of Scotch Church was transferred from the state of New York to Montgomery County as part of a highway maintenance swap between the two levels of government.NY 160 was rerouted south of Scotch Church to follow NY 407 to Mariaville, resulting in the elimination of the NY 407 designation.The former routing of NY 160 on Thayer Road became CR 165.