70 ILCS 605/4-16
When authorized by the court, the commissioners may: (a) construct additional drains, ditches, levees or other works necessary for the drainage or protection of the lands in the district, including the construction of one or more pumping plants; (b) alter, enlarge, extend, improve, deepen, widen or straighten any drain, levee, pumping plant or other work within the district and may do any such work outside the district when necessary to obtain a proper outlet or to protect the lands in the district; (c) change the method of construction, route, size, capacity, termini or plans of any proposed drain, levee or other work of the district; (d) purchase, acquire or lease and maintain and operate dredge boats, draglines, bulldozers or other machinery or equipment necessary for the construction, repair, maintenance and preservation of any drain, levee or other work of the district; (e) purchase mowing machines, tractors, sprayers or other like equipment for keeping the drains, levees, banks and right-of-way free from weeds, brush or other obstructions; (f) construct access roads when such roads are necessary to protect or maintain any drain, levee, pumping plant or other work or structure of the district; (g) level spoil banks and excavated material to permit cultivation or use for roadway or other lawful purposes; (h) construct headwalls, bulkheads, spillways, surface water inlets and tile outlets as a part of the drainage system of the district; and (i) abandon any drain, levee or other work of the district, or any part thereof, when the same is no longer of value or service to the district or has been adequately replaced or superseded by other works.
70 ILCS 605/4-16