 At the same time, US 9 was realigned between Albany and Round Lake to use what had been NY 9C.The Waterford–Mechanicville portion of US 9's former routing and the segment of US 9E between East Greenbush and Waterford became part of an extended US 4.The remainder of the old riverside route south of Waterford became part of NY 32 while the Round Lake–Mechanicville segment of old US 9 became part of NY 67.