Minn. Stat. § 458.20: CITY MAY CONDEMN WATER-COVERED LAND FOR SLIPS.

A city of the first class may acquire by eminent domain land covered with water or an easement in the land in the city. The water-covered land must connect with or be near public navigable water other than nearby rivers in or near the city. The city council must first declare by resolution that the land must be taken to open, to lay out, or to improve a slip or other waterway. The taking may include damage, injury, or destruction to the water-covered land. The slip or waterway must lead into or connect with the public navigable water.