[Tagging] How to tag pipestems (shared driveways)

[Nathan Edgars II]

West Virginia actually maintains and numbers these "pipestems" under the 
"Home Access Route Program" (example: 
http://www.gribblenation.com/wvpics/subs/939on11n-kerr.jpg)
Before they were given to the state in the 1990s, they were "orphan 
roads" that were open to the public but not maintained by any 
government: http://www.legis.state.wv.us/WVCODE/Code.cfm?chap=17&art=2C

I'm not sure if this is exactly the same thing.