Indiana Code Title 14. Natural and Cultural Resources § 14-27-1-6

(1) Accompany the drainage or levee commissioners, the joint board of drainage commissioners, or the board of directors of an incorporated levee or dike association and assist and advise them while making personal inspection of the land likely to be affected by the proposed work to determine the best and cheapest method of drainage or of constructing the proposed levee or dike, including the termini, route, location, character, and dimensions of the main drain or levee, as well as any arms, branches, or laterals, considering future contingencies as well as present needs, and cooperate with them in the determination of all other matters that the commissioners or board of directors are lawfully required to perform and on which they may request the person's assistance or advice.

(2) Sit in an advisory capacity during the hearing of the preliminary or final report of the drainage or levee commissioners or board of directors by the court or county executive until the proceedings have been dismissed or an order has been issued declaring the proposed work established.

(3) Cooperate with the superintendent of construction, commissioner, or other person charged with the execution of the work in the determination of all matters on which the person's advice or assistance is requested.