If it is a deeded right of way, anyone damaging the road can be required to fix it, but with legal fees and expert witness fees (to verify the cost of repair), it might not be worth the effort. A single owner can't make up rules that apply to the road. She might be able to petition the Court to establish rules such as a speed limit but it would involve filing a suit against the other persons using the road, and normally law enforcement folks don't enforce private right of way issues.
Answered on Apr 12th, 2014 at 10:04 AM