Mich. Comp. Laws § 324.30712: Computation of project costs.

Sec. 30712.

Computation of the cost of a normal level project shall include the cost of all of the following:

The preliminary study.

Surveys.

Establishing a special assessment district, including preparation of assessment rolls and levying assessments.

Acquiring land and other property.

Locating, constructing, operating, repairing, and maintaining a dam or works of improvement necessary for maintaining the normal level.

Legal fees, including estimated costs of appeals if assessments are not upheld.

Court costs.

Interest on bonds and other financing costs for the first year, if the project is so financed.

Any other costs necessary for the project which can be specifically itemized.

The delegated authority may add as a cost not more than 15% of the sum calculated under subsection (1) to cover contingent expenses.