Mich. Comp. Laws § 239.1: Culverts or cattle-passes; construction, permission, cost.

Sec. 1.

It shall be lawful for all persons owning land on opposite sides of any public highway to construct culverts or cattle-passes under such highways: Provided, That formal application is made to, and permission obtained from the commissioner of highways of the township in which said land is situated, for such construction: Provided further, That such construction and maintenance shall be wholly at the expense of such applicant, his heirs and assigns.