Michigan Compiled Laws, Chapter 259. Aviation § 259.127

Sec. 127. Where necessary, in order to provide unobstructed air space for the safe landing or taking off of aircraft utilizing airports, landing fields, or other aeronautical facilities acquired or operated under this act, every political subdivision of this state is authorized to acquire, in the same manner as is provided for the acquisition of property for airport purposes, easements through or other interests in air space over land or water, interests in airport hazards outside the boundaries of the airports, landing fields, and other aeronautical facilities, and such other airport protection privileges as are necessary to insure safe approaches to the landing and takeoff areas.Political subdivisions are also authorized to acquire, in the same manner, the right or easement, for a term of years or perpetually, to place or maintain suitable marks for the daytime marking and suitable lights for the nighttime marking of airport hazards, including the right of ingress and egress to or from airport hazards, for the purpose of maintaining and repairing the lights and marks.