Ohio Rev. Code § 5528.53
The highway capital improvement fund is hereby created in the state treasury. The fund shall consist of the proceeds of obligations issued pursuant to section 151.01 and 151.06 of the Revised Code, and issued prior to September 30, 2000, pursuant to section 5528.54 of the Revised Code, except for amounts deposited into special funds, or into escrow funds for the purpose of refunding outstanding obligations. Money to the credit of this fund may be expended to pay costs of projects. All investment earnings of the fund shall be credited to the fund. The state may participate in financing projects by grants, loans, or contributions to local government entities. To the extent practicable, Ohio products, materials, services, and labor shall be used in any project financed in whole or in part from the fund.
R.C. §5528.53