Ohio Rev. Code § 4504.04
Any municipal corporation that is not levying a municipal motor vehicle license tax under section 4504.06 of the Revised Code and that is located within a county levying a county motor vehicle license tax under section 4504.02 of the Revised Code may at any time following adoption by the board of county commissioners of a map prepared pursuant to section 4504.03 of the Revised Code make application in writing to the board for funds available under division (B)(1) of section 4504.05 of the Revised Code to plan, construct, reconstruct, improve, maintain, or repair any of the streets within the municipality shown on such map, to pay the municipal corporation's portion of the cost of cooperating with the county or with the department of transportation in the planning, construction, reconstruction, improvement, maintenance, or repairing of any of the roads or highways designated on such map, to pay the municipal corporation's portion of the compensation, damages, cost, and expenses of planning, constructing, reconstructing, improving, maintaining and repairing roads and streets designated on such map, to pay any cost apportioned to the municipal corporation under section 4907.47 of the Revised Code with respect to any of the highways, roads or streets designated on such map, or to purchase, erect, and maintain traffic signs and markers and traffic lights and signals which the municipal corporation is authorized to erect and maintain on such highways, roads, or streets.
In addition to such application there shall be filed with the county engineer, in the case of any proposed construction or permanent improvement, a copy of the preliminary plans and an estimate of cost of such construction or improvement or, in any other case, a general statement of the work to be done and the location. Upon approval by the county engineer of such preliminary plans and estimate of cost or proposed use, and upon his finding that the proposed construction, improvement, or other use of funds requested by the municipal corporation is necessary or conducive to the orderly and efficient flow of traffic within and through the county, the board of county commissioners may allocate to such municipal corporation, from funds available for such purpose as provided in division (B)(1) of section 4504.05 of the Revised Code, all or part of the cost of such construction, improvement, repair, or other use, bearing in mind the needs of the county as a whole, and in the case of municipal streets, the board may give priority to those streets designated as primary on the map prepared pursuant to section 4504.03 of the Revised Code. A municipality which has prepared plans required to be submitted by this section to the county engineer shall be reimbursed from the fund established by division (B)(1) of section 4504.05 of the Revised Code for the cost of preparing such plans submitted to the engineer.
The board shall certify to the county auditor the amount of any funds allocated to a municipal corporation under this section.
After submission of final and detailed plans or statements of work to be done to the county engineer and after his approval, the board of county commissioners shall have encumbered the moneys necessary to fulfill awarded contractual or other obligations for approved project costs. The county auditor shall draw a warrant for such encumbered amount, upon notification by the municipality that work on an approved project has commenced, on the county treasurer payable to the auditor or village clerk of the municipal corporation. Moneys received by a municipal corporation under this section shall be used for the purpose for which they are encumbered, and any moneys not so used shall be returned for deposit in the fund established by division (B)(1) of section 4504.05 of the Revised Code.
R.C. §4504.04