Minn. Stat. § 103G.225: STATE WETLANDS AND PUBLIC DRAINAGE SYSTEMS.

If the state owns public waters wetlands on or adjacent to existing public drainage systems, the state shall consider the use of the public waters wetlands as part of the drainage system. If the public waters wetlands interfere with or prevent the authorized functioning of the public drainage system, the state shall provide for necessary work to allow proper use and maintenance of the drainage system while still preserving the public waters wetlands.