Minn. Stat. § 440.37: ROADS OR STREETS OUTSIDE FIRST CLASS CITY LIMITS.

Any city of the first class in this state is hereby authorized and empowered to extend, lay out, open, build, maintain, and repair any road, street, avenue, boulevard, parkway, or other public highway or public park adjacent to any such highway, which may be authorized by ordinance of the city passed by a three-fourths vote of all the members of the council, whether the road, street, avenue, boulevard, parkway, or other public highway be wholly within or partly within and partly without, or wholly without, outside of, or beyond the corporate limits of the city.