(70 ILCS 1815/2.4) (from Ch. 19, par. 802.4)
    Sec. 2.4. "Port facilities" means all public structures, except terminal facilities as defined herein, that are in, over, under or adjacent to navigable waters and are necessary for or incident to the furtherance of air and water commerce; and includes the widening and deepening of slips, anchorage, harbors and navigable waters, and the construction of any airport facilities.
(Source: P.A. 77-1799.)