Ohio Rev. Code Ann. § 5553.042
(A) As used in this section:
(B) A township shall lose all rights in and to any public road, highway, street, or alley which has been abandoned and not used for a period of twenty-one years, after formal proceedings for vacation as provided in sections 5553.04 to 5553.11 of the Revised Code have been taken. Upon petition for vacation of such a public road, highway, street, or alley filed with the board of county commissioners by any abutting landowner, if the board finds that the public road, highway, street, or alley has been abandoned and not used for a period of twenty-one years as alleged in the petition, the board, by resolution, may order the road, highway, street, or alley vacated, and the road, highway, street, or alley shall pass, in fee, to the abutting landowners, as provided by law, and subject to all of the following: