Tennessee Code Title 69. Waters, Waterways, Drains and Levees § 69-6-147

(b)(1) The board, or landowners owning five percent (5%) of the acreage affected by any project, may petition the court in which such plan or project was approved to levy additional assessments for the proper maintenance or operation, or both, of such project or improvement, as may appear to the court to be necessary, the apportionment of such maintenance expense to be upon the tracts benefited by the original project in the ratio or proportion established in the original assessment roll.

(2) In the case of any improvement or project benefiting all of the lands in the district generally, the court may order the board to have the proper maintenance or repair work, or both, accomplished, and order the same to be paid from the funds of the district in the hands of the treasurer that are not obligated for any other purpose.