Ohio Rev. Code Ann. § 5561.02

When the board of county commissioners deems it necessary, in the abolishment of grade crossings, to change the location of any state or intercounty highway in the county, such board may, with the approval of the director of transportation, relocate such highway or any part thereof, vacate the whole or any portion of such highway abandoned by relocation, and cause the improvements contemplated to be placed in such relocated highway.