WVC 17 C- 3 - 3
§17C-3-3. Local traffic-control devices.
Local authorities in their respective jurisdictions shall
place and maintain such traffic-control devices upon highways
under their jurisdiction as they may deem necessary to indicate
and to carry out the provisions of this chapter or local traffic
ordinances or to regulate, warn, or guide traffic. All such
traffic-control devices hereafter erected shall conform to the
state manual and specifications.