In every case where a public highway has been or shall be encroached upon by any fence, building, or other encroachment, the commissioner or commissioners having jurisdiction over the road may make an order under his or their hand requiring the owner or occupant of the land through or by which such highway runs, and of which such fence, building, or other encroachment forms a part of the enclosure, to remove such encroachment from such highway within 30 days. A copy of such order shall be served upon such owner or occupant, and every such order shall specify the width of the road, the nature of the encroachment and its location with relation to the center line of the road, and the township, section and fraction thereof in which it may be: Provided, The commissioner or commissioners having the matter in charge may issue temporary permits for fences for the protection of improvements on the adjacent land.