Ohio Rev. Code § 2305.05
If a street or alley, or any part thereof, laid out and shown on the recorded plat of a municipal corporation, has not been opened to the public use and occupancy of the citizens thereof, or other persons, and has been enclosed with a fence by the owners of the inlots, lots, or outlots lying on, adjacent to, or along such street or alley, or part thereof, and has remained in the open, uninterrupted use, adverse possession, and occupancy of such owners for the period of twenty-one years, and if such street, alley, inlot, or outlot is a part of the tract of land so laid out by the original proprietors, the public easement therein shall be extinguished and the right of such municipal corporation, the citizens thereof, or other persons, and the legislative authority of such municipal corporation and the legal authorities thereof, to use, control, or occupy so much of such street or alley as has been fenced, used, possessed, and occupied, shall be barred, except to the owners of such inlots or outlots lying on, adjacent to, or along such streets or alleys who have occupied them in the manner mentioned in this section.
R.C. §2305.05