Ohio Rev. Code Ann. § 1533.59

No person shall locate, place, or maintain in any of the waters over which the state has jurisdiction any obstruction to the natural transit of fish. The chief of the division of wildlife or any wildlife officer or other person may take up, remove, or clear away such obstructions, except milldams, and if the obstruction is a net or other device used for leading or catching fish, it may be seized and condemned, as provided in section 1531.20 of the Revised Code. This section does not apply to Lake Erie.