70 ILCS 1870/8
The District has power to acquire and accept by purchase, lease, gift, grant or otherwise any property and rights useful for its purposes and to provide for the development of channels, ports, harbors, airports, airfields, terminals, port facilities, terminal facilities, and other transportation facilities within the Port District adequate to serve the needs of commerce within the area served by the Port District. The Port District may acquire real or personal property or any rights therein in the manner, as near as may be, as is provided for the exercise of the right of eminent domain under the Eminent Domain Act , except that no property owned by any municipality within the Port District shall be taken or appropriated without first obtaining the consent of the governing body of such municipality.
70 ILCS 1870/8