Ala. Code § 11-47-14
All municipal corporations which may have heretofore regularly issued bonds as provided by law for all or any of the purposes of constructing a wharf or wharves and a landing or landings and purchasing such real estate as may be necessary for such wharf or wharves and landing or landings and the equipping and furnishing of the same and improving of the waterfront for such municipalities may expend the proceeds of the sale of such bonds for all or any of the purposes of constructing a wharf or wharves and a landing or landings and acquiring such real estate as may be necessary for such wharf or wharves, landing or landings, either by purchase or condemnation proceedings in the manner provided by Title 18 of this Code, and of equipping and furnishing the same and improving the waterfront for such municipality, within its limits and outside its limits within five miles of the corporate limits of such municipality as such limits are now or may hereafter be established, and for the purpose of securing the complete use and enjoyment of all of said improvements for such municipality whether located within or without its limits.
Ala. Code § 11-47-14 (1975)