Miss. Code Ann. § 65-1-49

The conveyance or assignment of easements for highway purposes may be made by the owner thereof to the Mississippi State Highway Commission or the board of supervisors of any county for highway purposes. All actions by any person owning any interest in the land involved in such conveyance or assignment accruing as a result thereof must be brought within three years after the date of such conveyance or assignment; provided, however, that the land involved is actually used for highway purposes or notice is posted thereon that it will be used for highway purposes within said three-year period, otherwise said period shall be six years from the date of such conveyance or assignment.

The procedure provided hereby with reference to the conveyance or assignment of easements is supplemental to all rights and powers now authorized for and existing under the present law in said commission and boards, and is not intended as a limitation on same in any manner.