88.23 Power of board to levy assessments for costs. (1) In addition to the assessments for cost of construction authorized by s. 88.35, the board may issue orders to levy assessments for costs of maintenance and repair or for any other lawful expenditures of a drainage district. All of the assessments shall be apportioned on the confirmed benefits then in effect in the district assessed. (2r) The board may authorize one or more owners of land in a drainage district to prepare a proposed assessment for cost of construction or maintenance and repair. (3) Assessments made under this section are subject to ss.