Ohio Rev. Code § 6135.19: Assessment of land not mentioned in first report.

The further proceedings of the joint board of county commissioners shall be in conformity with the laws for the location of county or joint county ditches taken at this stage of the proceedings. The boards of county commissioners, at their hearing on the apportionment made, may assess any other owners and lands not mentioned in the first report of the engineers, which they deem to be benefited thereby. The owners shall have due notice thereof.