Ohio Rev. Code § 5557.08: Continuous road improvement through municipal corporation consent required.

The board of county commissioners may repair that portion of a county road extending into or through a municipal corporation, or a part of a county road and a municipal corporation's streets extending into or through a municipal corporation and forming a continuous road improvement, when the consent of the legislative authority of said municipal corporation has been first obtained, and such consent shall be evidenced by the proper legislation of the legislative authority of the municipal corporation, entered upon its records.