Ohio Revised Code Title LV. Roads Highways Bridges § 5591.14

For the purpose of raising money to pay its proportion of the cost of the improvement authorized by section 5591.03 of the Revised Code, as fixed or provided in the construction contract, the county may issue its bonds to the necessary amount, under the provisions and limitations of the law with respect to the submission to the voters of the county of the question of issuing bonds for the construction of county bridges, which bonds shall be of such denomination and payable at such places and times as the board of county commissioners determines, and shall bear interest not exceeding the rate provided in section 9.95 of the Revised Code, but not be sold for less than their par value.  A tax on the taxable property of the county, not exceeding one-half mill in each year, may be levied to pay the principal and interest of such bonds as they mature, or such cost may be paid from the proceeds of any bond issue authorized for the building of a bridge having the same or approximately the same termini, or connecting the same county roads as those provided in the contract for such joint bridge as provided by section 5591.03 of the Revised Code.

After the improvement is completed, a tax may be levied by the county to pay the cost of maintaining and keeping in repair that part of the joint bridge required to be maintained and kept in repair by the county.