Ind. Code § 8-10-5-9
The board of directors of a port authority shall prepare or cause to be prepared a plan for the future development, construction, and improvement of the port and its facilities, including such maps, profiles, and other data and descriptions as may be necessary to set forth the location and character of the work to be undertaken by the port authority. Upon the completion of such plan, the board of directors shall cause notice by publication as provided in section 1 of this chapter, to be given in each county in which there is a political subdivision participating in the creation of the port authority, and shall likewise cause notice to be served upon the owners of the uplands contiguous to any submerged lands affected by such plan in the manner provided by law for service of notice in the levy of special assessments by municipal corporations, and shall permit the inspection thereof at their office by all persons interested. Said notice shall fix the time and place for the hearing of all objections to said plan which time shall be not less than ten (10) nor more than thirty (30) days from the date of last publication of said notice. Any interested person may file written objections to such plan, provided such objections are filed with the secretary of the board of directors at his office not less than five (5) days prior to the date fixed for said hearing. After said hearing, the board of directors may adopt such plan with any modifications or amendments thereto as the official plan of the port authority.
IC 8-10-5-9