Ohio Rev. Code § 5561.15
From the finding and order of the director of transportation that a grade crossing improvement is reasonably necessary and expedient, the board of county commissioners or any railroad or interurban railway company may, upon the question of such necessity and expediency, take an appeal to the public utilities commission. A party desiring to take such an appeal shall file with the director written notice of its intention within thirty days after service upon it of the finding and order. The director shall certify to such commission all original papers on file with him, together with a copy of all orders made by him in the proceeding. Such appeal shall be docketed by the commission, and after reasonable notice to all interested parties it shall hear the appeal upon the evidence adduced before it, and shall determine whether the making of such improvement is necessary and expedient. An appeal from the order of the director or the board, fixing the contribution of a company under section 5561.14 of the Revised Code to the commission, may be taken, and shall be heard and decided in the same manner. Any party to such proceedings on appeal, aggrieved by the decision of the commission, may prosecute error to the supreme court.
R.C. §5561.15