As used in this subchapter:
(1) “Legislative body” means the council of municipalities having the mayor-council form of government and the commission, or other governing body, of municipalities having a commission or other form of government;
(2) “Mayor” means the mayor of municipalities having the mayor-council form of government and the presiding officer of municipalities having a commission or other form of government;
(3) “Municipality” means a city of the first class, a city of the second class, or an incorporated town in the State of Arkansas; and
(4) “Port” means ports, harbors, and river-rail barge terminals, together with wharves, docks, piers, quays, elevators, compresses, refrigeration storage plants, warehouses, landing places and basins, and other structures, and all facilities needful for the convenient use of them, including:
(A) The dredging of approaches to them and the construction of belt line roads and highways and bridges and causeways on them;
(B) Other bridges and causeways necessary or useful in connection with them; and
(C) Shipyards, shipping facilities, and transportation facilities incident to them and useful or convenient for the use of them, including terminal railroads, in their entirety, or any integral part of them.