Ohio Rev. Code § 5523.19
When a separated crossing, which was not constructed in accordance with sections 4957.01 to 4957.26 or sections 5561.01 to 5561.15 of the Revised Code, is situated on a road or highway on the state highway system or an extension thereof, and is so located that in order to provide for the safety and convenience of the traveling public having occasion to use such road or highway or extension, the director of transportation deems it necessary to relocate and reconstruct the same in whole or in part outside the right-of-way of such road or highway or extension thereof, or when, in the opinion of the director, a separated crossing which was not constructed in accordance with such sections, and which separated crossing is located on a road or highway on the state system or an extension thereof, which road or highway was laid out and opened after the construction of the railroad, is in need of widening, reconstruction, or realignment in order to provide for the safety and convenience of the traveling public having occastion to use such road or highway or extension thereof, the director may relocate and reconstruct, widen, reconstruct, or realign the same.
The director may take such action and initiate and prosecute such proceedings as provided in sections 5523.01 to 5523.18 of the Revised Code, to secure the elimination of existing grade crossings. The cost and expense of such relocation and reconstruction, widening, reconstruction, or realignment shall be borne by the state, or by the state and any other political subdivision in which the crossing is located, and by the railroad company in the proportions set out in sections 5523.01 to 5523.20 of the Revised Code, in relation to the elimination of existing grade crossings, unless otherwise agreed upon.
Every person or company owning, controlling, managing, or operating a railroad in this state shall maintain and keep in good repair good, safe, adequate, and sufficient crossings and approaches thereto, whether at grade or otherwise, across its tracks, at all points other than crossings separated in accordance with sections 4957.01 to 4957.26 and 5561.01 to 5561.15 of the Revised Code, or in accordance with sections 5523.01 to 5523.20 of the Revised Code, and other than separated crossings relocated and reconstructed, widened, reconstructed, or realigned in accordance with this section, where such tracks intersect a road or highway on the state highway system or an extension thereof.
R.C. §5523.19