The plan developed under § 26–401 of this subtitle shall include: the location of each proposed drainage project on a map, drawing, or aerial photograph; a general delineation of the boundaries of the area affected by the drainage association with the general location in the county affected; engineering plans in sufficient detail to describe the proposed project; a general delineation of the boundaries of each tract of land in the area affected by the drainage association, including an estimate of the acreage of each tract; and the total estimated construction cost of each proposed drainage project.