In the west , NY 164 splits off from NY 311 a short distance east of I @-@ 84 . It cross under the Metro North track three times , including two one @-@ lane underpasses with limited sight to the other side . It pass along the northern base of a small mountain and turn slightly southward . The highway turn due eastward and intersect with County Route 64 in the hamlet of Towners . Just to the north is Mandel Pond , and the route make a series of erratic turns around small mountains , passing south of Cornwall Hill as it do so . NY 164 turn south @-@ southeast and end at NY 22 in Patterson , east of the East Branch Croton River .