Mich. Comp. Laws § 41.277: Pavements or sidewalks; final order of determination, attachment of specifications.

Sec. 7.

Within 30 days after hearing objections, if the commissioners shall deem the proposed improvement necessary for the benefit of the public welfare and convenience, they shall make their final order in writing, under their hands, determining that the proposed improvement shall be made according to the final specifications adopted by them, a copy of which specifications shall be attached to said order.