Ohio Rev. Code Ann. § 6155.01

Applications by the owners of lands adjoining or adjacent to a stream of living water for the removal of a milldam therein shall be made by filing with the county auditor a petition signed by at least two thirds of said owners, stating the necessity for such improvement and the removal of the milldam, with a sufficient bond with sureties to the acceptance of the auditor, conditioned to pay all expenses incurred in case the board of county commissioners refuses to grant the prayer of the petition.