The former alignment to Buffalo is now designated as NY 950M, a reference route.
In Dover Plains, the southern leg of NY 22's junction with NY 343 is maintained by the state as NY 980G, a reference route.
In Arkport, NY 36 intersects the eastern terminus of NY 961F, a reference route erroneously signed as a touring route, at West Avenue.
It was truncated to US 9 in the 1960s but its former routing to Rhinecliff is still state-maintained as an unsigned reference route.
NY 245 was truncated northeastward to Naples and NY 63 was cut back to NY 36 in Dansville around the same time, leaving the Dansville Wayland highway as an unsigned reference route.
The Sprain Brook Parkway, designated by the New York State Department of Transportation as NY 987F, a state reference route, begins at a fork from the Bronx River Parkway along the latter's right-of-way along the Bronx River in the city of Yonkers.
The former routing of NY 337 along McAlpine Street from Cherry Street to a grade crossing with the Mohawk, Adirondack and Northern Railroad, a distance of 0.03 mile, is now designated as NY 970J, an unsigned reference route.
Much of NY 23's former routing between Cairo and the Catskill village line is now CR 23B; however, a 0.63 mile segment in Jefferson Heights between exit 21 of the New York State Thruway and a town road named Austin Acres is state-maintained as NY 911V, an unsigned reference route.
The former routing of NY 421 north to Warren Point, legislatively designated as State Highway 9106B, was initially considered a spur of NY 421; it was later redesignated as NY 971D, an unsigned reference route.
This segment of Main Street is designated as NY 983W, an unsigned reference route.
