The drainage of agricultural lands is hereby declared to be a public purpose and the Legislature may provide therefore, and may provide for the organization of drainage districts for the drainage of lands for any public use, and may vest the corporate authorities thereof, and the corporate authorities of counties, townships and municipalities, with power to construct levees, drains and ditches, and to keep in repair all drains, ditches and levees heretofore constructed under the laws of this state, by special assessments upon the property benefited thereby, according to benefits received.