Ala. Code § 33-2-181

The department, with the approval of the Governor, may from time to time and at any time, issue its docks facilities revenue bonds in such aggregate principal amounts as the department, with the approval of the Governor, may determine to be advisable, for the purpose of providing funds for the acquisition, construction, equipment or improvement of docks facilities, together with the expenses incident to the authorization, issuance and sale of such docks facilities revenue bonds. The cost of so acquiring, constructing, equipping and improving such docks facilities shall be deemed to include interest that will either accrue or become payable on the docks facilities revenue bonds issued therefor during the period required for the acquisition, construction, equipment and improvement of such docks facilities, plus a period not exceeding six months after the completion thereof. The powers conferred on the department by this article are in addition to all powers heretofore conferred on the department by the Constitution and laws of Alabama.