The easement or right-of-way shall belong to the owners of the lands benefited by the easement or right-of-way, and continue as long as the easement or right-of-way is used and maintained by them, their heirs or assigns, but upon the easement or right-of-way falling into nonuse or when the easement or right-of-way is not maintained or kept up, it shall cease and the original owner or owners of the servient land, their heirs or assigns may take possession of the easement or right-of-way to the exclusion of all other parties.