Ohio Rev. Code Ann. § 5591.39

For the purpose of appropriating a bridge as authorized by section 5591.38 of the Revised Code, the board of county commissioners shall have made an accurate survey and description of the bridge and approaches and the land occupied thereby, and shall proceed in accordance with sections 163.01 to 163.22, inclusive, of the Revised Code. Upon payment of the agreed price, or payment into court of the compensation assessed, the right to charge or collect toll shall cease.