55 ILCS 5/5-34003
The resolution or resolutions authorizing the Expressway bonds shall prescribe all the details thereof and shall provide for the levy of a direct annual tax upon all the taxable property within the county to pay the principal thereof and interest thereon as it matures. This tax shall be in addition to and exclusive of the maximum of all other taxes authorized to be levied by the county. Tax limitations applicable to the county provided by this Code and by other statutes of this State shall not apply to taxes levied for payment of Expressway bonds. However, taxes provided to be levied for payment of Expressway bonds shall not be in excess of the constitutional limitation of seventy-five cents per $100 valuation unless that excess is authorized by a vote by the people of the county. Such resolution or resolutions shall also provide that when the General Assembly shall have appropriated and allotted to such County or Counties a sum sufficient to retire the principal of and interest on bonded indebtedness due annually arising from the issuance of said Expressway bonds, issued for the purpose of constructing Expressways, in Counties having a population of more than 500,000 inhabitants, from general highway funds and/or funds made available by Acts of Congress, in accordance with the provisions of the Federal Aid Road Act of 1916, as amended and supplemented, and allotted to the several Counties in accordance with the laws appertaining thereto, such funds shall be paid into the Expressway bond and interest sinking fund account or accounts, required to be created by Section 5-34006, which provisions shall be deemed additional security for payment of the Expressway bonds and interest thereon and shall be irrepealable by the Board of Commissioners so long as any Expressway bonds and interest thereon are unpaid. If more than one bond resolution is adopted under the authority of this Division, each such allotment of moneys from the State of Illinois shall be apportioned among the sinking fund accounts for such bond issues in proportion to the principal amount of each issue. If, and when, the moneys received, or to be received, from the State of Illinois by such County during any calendar year and deposited in the Expressway bond and interest sinking fund account or accounts, equal the amount of taxes levied and next to be extended for payment of principal of and interest on all Expressway bonds issued under authority of this Division, the balance of the moneys received from the State of Illinois during that calendar year shall be deposited in a special account hereby required to be created and which shall be designated as the Expressway bond and interest sinking fund account. A certified copy of the bond resolution or resolutions adopted under authority of this Division shall be filed with the County Clerk of the county and shall constitute authority for the extension and collection of Expressway bond and interest taxes as required by the constitution. A certified copy of the bond resolution or resolutions shall also be filed with the Directors of the Department of Central Management Services and the Department of Transportation of this State.
55 ILCS 5/5-34003