Mich. Comp. Laws § 102.9
Such part of the expenses of improving any street, lane or alley, by grading, paving, planking, graveling, curbing, or otherwise, and of repairing the same as the council shall determine, may be paid from the general street fund or from the street district fund of the proper street district, or in part from each; or the whole, or such part of the expense of such improvement as the council shall determine, may be defrayed by special assessments upon lots and premises included in a special assessment district, to be constituted of the lands fronting upon that part of the street or alley so improved or proposed so to be; or constituted of lands fronting upon such improvement, and such other lands as in the opinion of the council may be benefited by the improvement.
MCL 102.9