 The portion of US 4 between NY 32 in Waterford and NY 22 in Whitehall is the southernmost part of the Lakes to Locks Passage, an All-American Road that begins in Waterford and heads north through eastern New York to Rouses Point.Additionally, the segment of US 4 between the northern city line of Mechanicville and the eastern village line of Whitehall is designated as the Turning Point Trail.Most of the route is maintained by the New York State Department of Transportation (NYSDOT); however, two sections are maintained by local highway departments.