605 ILCS 5/10-806
Any municipality may by ordinance authorize the issue of refunding revenue bonds under this Division of this Article payable solely from the net revenue of one or more bridges to refund the principal, premium, if any, and accrued interest of any one or more issues of its outstanding revenue bonds issued under the provisions of this Division of this Article and which by their terms are payable solely from the revenue of any bridge or bridges, such refunding to be made at or after maturity or prior to maturity with the consent of the holders thereof, provided that such consent shall not be required if such bonds are subject to redemption prior to maturity, and any such refunding revenue bonds may bear interest at a rate not to exceed the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, payable at such times as may be provided by the ordinance authorizing the issue thereof. All of the provisions of this Division of this Article with respect to the form, maturities and other details of bonds and the security therefor and covenants with respect thereto shall be applicable to such refunding bonds, and such refunding bonds may be consolidated with and be a part of an issue of revenue bonds issued pursuant to the provisions of this Division of this Article for the payment of the cost of acquiring, constructing, reconstructing, improving, enlarging, bettering or repairing any bridge or for the payment of any portion of such cost. Any ordinance authorizing such refunding revenue bonds may contain such covenants and restrictions upon the issuance of additional revenue bonds as may be deemed necessary or advisable for the assurance of the payment of the revenue bonds thereby authorized.
With respect to instruments for the payment of money issued under this Section either before, on, or after the effective date of this amendatory Act of 1989, it is and always has been the intention of the General Assembly (i) that the Omnibus Bond Acts are and always have been supplementary grants of power to issue instruments in accordance with the Omnibus Bond Acts, regardless of any provision of this Act that may appear to be or to have been more restrictive than those Acts, (ii) that the provisions of this Section are not a limitation on the supplementary authority granted by the Omnibus Bond Acts, and (iii) that instruments issued under this Section within the supplementary authority granted by the Omnibus Bond Acts are not invalid because of any provision of this Act that may appear to be or to have been more restrictive than those Acts.
605 ILCS 5/10-806