and a structure or obstruction may not be placed in a highway or roadway of a state highway without the consent of the department. A highway or roadway may not be dug up for laying or placing a pipe, sewer, pole, wire, conduit, track, or railway or for any other purpose, and trees may not be removed from the right-of-way of a state highway without the written permit of the department, and then only in accordance with the rules of the department. The work shall be done under the supervision and to the satisfaction of the department, and the entire expense of restoring the highway or street in as good condition as before shall be paid by the person to whom the permit is given.
IC 8-23-6-6