Notwithstanding any of the foregoing provisions of Section 65-25-21, any municipality other than the state may, by resolution or ordinance passed prior or subsequent to the issuance of its bonds under the provisions of this article, or by such trust indenture, covenant to contribute funds apart from bridge earnings to pay all or any part of the cost of maintaining, repairing, and operating any bridge or bridges acquired, constructed, or improved by it under the provisions of this article, and may likewise covenant to make such contribution to the payment of bonds and the interest thereon issued pursuant to this article, by another municipality. Such covenant, authorized by such resolution, ordinance, or trust indenture, shall have the force of a contract between such municipality and the holders of the bonds issued on account of such bridge or bridges, and shall obligate the municipality to raise such funds. Any municipality in the state may aid any other municipality in the state and contribute funds to pay any part of the cost of acquiring, constructing, maintaining, repairing, and operating any bridge or bridges; and the twenty miles limitation contained in Section 65-25-3 shall have no application and shall not be construed to restrict such municipality from contributing such funds to aid the municipality which issues its revenue bonds as herein provided. But no such contribution shall be made unless authorized by a majority of the qualified electors voting in favor of same in an election held according to law for the purpose of so authorizing.

No municipality shall enter into any contract or covenant provided for in the first paragraph of this section without there being first held an election in which a majority of those voting shall authorize said covenant or contract to be entered into by said municipality.

The State of Mississippi, acting by and through the state highway commission as an agency thereof, may receive from the federal government or any agency thereof funds specifically allotted or appropriated by the federal government for constructing, acquiring, maintaining, and repairing bridges across the Mississippi River, which the state highway commission may by resolution allocate to pay the costs or any part thereof of constructing, acquiring, maintaining, repairing, and operating any bridge or bridges acquired, constructed, or improved under this article and to the payment of principal and interest of such bonds.