Ohio Rev. Code § 5555.24: Appointment of county engineer by joint board - copies of surveys transmitted to each board.

After the joint board of county commissioners has granted the improvement, it shall appoint a county engineer of one of the counties interested, who shall make such surveys, plans, profiles, cross sections, estimates, and specifications as are necessary and transmit copies of them to each board interested in said improvement. If a majority of the joint board is unable to agree as to the appointment of an engineer, the joint board shall thereupon certify that fact to the director of transportation who shall designate a county engineer of one of the interested counties.