Mich. Comp. Laws § 141.137

Sec. 37. Public corporations shall have the right and power to condemn property for public improvements. In the condemnation of property, public corporations may proceed under any act applicable thereto, or they may invoke and proceed under the provisions of Act No. 149 of the Public Acts of 1911, as the same may from time to time exist, and in so doing shall have all the rights, powers and privileges granted to "public corporation" as defined in that act.