70 ILCS 3405/17
The board of trustees of any surface water protection district incorporated under this Act has the power and it is its legal duty and obligation to provide as nearly adequate protection from surface water damage for all persons and property within the district as possible and to prescribe necessary regulations for the prevention and control of surface water damage.
If in providing protection from surface water damage the flow of water in any stream will be thereby increased or any change or improvement in the course of any stream will be required, the board shall, before commencing the project, submit proposed plans for the project to and receive approval thereof by the Department of Transportation in accordance with the provisions of "An Act in relation to the regulation of the rivers, lakes and streams of the State of Illinois", approved June 10, 1911, as amended.
70 ILCS 3405/17