Creates the Rivers of Illinois Coordinating Council Act. Provides for the codification of the Rivers of Illinois Coordinating Council. Provides that the Council is the successor to: (i) the Illinois River Coordinating Council; (ii) the Mississippi River Coordinating Council; and (iii) the Wabash and Ohio River Coordinating Council. Provides for the consolidation and transfer of powers to the Council. Establishes the Rivers of Illinois Coordinating Council as consisting of 20 voting members to be appointed by the Governor. Specifies the membership of the Council. Provides for membership terms and meetings. Provides that the Office of the Lieutenant Governor shall be responsible for the operations of the Council, including, without limitation, funding and oversight of the Council's activities. Provides that members of the Council shall serve without compensation, but the Office of the Lieutenant Governor may reimburse members of the Council for travel expenses. Provides for duties of the Council and duties of State agencies represented on the Council. Repeals the Illinois River Watershed Restoration Act, the Mississippi River Coordinating Council Act, and the Wabash and Ohio Rivers Coordinating Council Act.