Any municipality within this state for the purpose of acquiring, paying for, maintaining, or constructing any such bridge or bridges, and the approaches thereto as in this Division of this Article provided, is authorized to issue such bonds under the general laws of this state in an amount which, together with all the other indebtedness of such municipality, shall not exceed 5% on the assessed valuation of the taxable property within the corporate limits of such municipality as provided by law, the same to be payable out of the general revenue and funds of such municipality.
     Provided, such municipality is also authorized to issue for the purposes aforesaid, or any of them, bonds in such sum as may be necessary for the purposes aforesaid or any of them, in addition to and over and above the bonds first in this section hereinbefore provided for, in excess of the said 5% of the assessed valuation of the property within any such municipality. Such bonds shall not, however, be payable out of nor be in charge upon any of the general revenue or funds of such municipality, but shall be payable out of the income derived by such municipality from the operation and maintenance of any such bridge or bridges. And provided further, that before any such bonds shall be issued, the question of the issuance thereof shall be submitted to a vote of the legal voters of the municipality at an election in accordance with the general election law and approved by a majority of those voting on the question at such election: And provided further, that for the purpose of securing such bonds so issued in excess of 5% of the assessed valuation of the taxable property within such municipality, such municipality may by the ordinance providing for the issuance of such bonds, mortgage or pledge any such bridge or approaches, and the income derived or to be derived therefrom, for the payment of such bonds, and the interest thereon: And provided further, nothing herein shall prevent such municipality from paying any such bonds issued in excess of said 5% of such assessed valuation or the interest thereon out of the general funds or revenue of such municipality, if it shall see fit so to do, if at the time of so paying same out of such general funds and revenue of such municipality, such municipality shall not be indebted in excess of 5% of the assessed valuation of the taxable property within such municipality in excess of the amount so paid by such municipality out of its general revenue and funds in the payment of such bonds. But nothing herein shall be deemed, taken or held to entitle the holder or holders of any such bond or bonds to payment of the same or of the interest thereon out of any such general funds or revenue of such municipality.