(55 ILCS 5/1-1003)
(from Ch. 34, par. 1-1003)
Jurisdiction over rivers.
bounded by either the Mississippi, Ohio or Wabash
river, shall have jurisdiction over such river to the extent it is so
bounded, which jurisdiction may be exercised concurrently with the
contiguous states bounded by such river.
(Source: P.A. 86-962.)