Ohio Rev. Code § 5531.01
The director of transportation may enter into agreements with the secretary of defense or other proper official of the United States in connection with the establishment, construction, reconstruction, relocation, maintenance, and repair, made necessary by river improvements, to highways and lands under jurisdiction and control of the director.
The director may relinquish to the United States all property rights of the state in existing highways and lands under his jurisdiction and control, required in connection with river improvements, and may release the United States from all claims for damages to highways and lands resulting from the establishment, construction, operation, and maintenance of such river improvements, if the state is reimbursed therefor by the United States or any department or agency thereof, and the agreements and other papers relating thereto are first submitted to the attorney general for approval. The director shall credit any moneys so received to the proper funds of the department of transportation.
R.C. §5531.01