The proportion of the compensation, damages, and costs of any road improvement to be paid by the township shall be paid out of any road improvement fund available for it. For the purpose of providing by taxation a fund for the payment of the township’s proportion of the compensation, damages, and costs of constructing, reconstructing, resurfacing, or improving roads under sections 5571.01, 5571.06, 5571.07, 5571.15, 5573.01 to 5573.15, and 5575.02 to 5575.09 of the Revised Code, and for the purpose of maintaining, repairing, or dragging any public road or part of any public road under their jurisdiction, in the manner provided in sections 5571.02 to 5571.05, 5571.08, 5571.12, and 5575.01 of the Revised Code, the board of trustees may levy, annually, a tax not exceeding three mills upon each dollar of the taxable property of the township. The levy shall be in addition to all other levies authorized for township purposes, and subject only to the limitation on the combined maximum rate for all taxes now in force. The taxes so authorized shall be placed by the county auditor upon the tax duplicate against the taxable property of the township, and collected by the county treasurer as other taxes. When collected, the taxes shall be paid to the fiscal officer of the township from which they are collected, and the money so received shall be under the control of the board of township trustees for the purposes for which the taxes were levied.