70 ILCS 605/2-4

Extension of covered drain through land of others-Plat-Profile.

At the time of commencing the action, the plaintiff shall also file a map or plat showing the land proposed to be drained, the land across which the drain is proposed to be constructed and the starting point, route and outlet of the proposed drain and a profile showing the elevation of the flow line of the proposed drain and the elevation of the surface of the ground through which the drain is proposed to be constructed.