Section 234.260 - Revenue and refunding bonds, how redeemed - interest rate1. For the purpose of redeeming any toll bridge revenue bonds or toll bridge revenue refunding bonds at maturity, or upon voluntary surrender by the holder or holders thereof regardless of maturity, or upon call for redemption of any such bonds prior to maturity, if the right to make such call was expressly reserved in the issuance of such bonds, the public agency by which such bonds were issued may issue its negotiable toll bridge revenue refunding bonds in an amount sufficient to provide for the payment of the principal amount and the redemption premium, if any, of the bonds to be redeemed, together with interest accrued and to accrue thereon to the date of such refunding bonds, and together also with the expenses necessarily incurred in the issuance of such refunding bonds.2. All such refunding bonds shall bear such date, shall mature in such amount or amounts and at such time or times, shall be payable at such place or places, shall be executed in such manner, shall bear interest at a rate not exceeding six percent per annum, and shall be of such denomination or denominations, all as may be determined by the governing authority of the public agency by which such refunding bonds are issued, and such refunding bonds shall be secured and provision for their payment shall be made in the same manner as in sections 234.210 to 234.300 with reference to the security for and the payment of original toll bridge revenue bonds issued hereunder.