No person shall move or operate any tractor, road roller or truck of greater capacity than three tons, or move any house or other building or structure, across any bridge, culvert, sidewalk, crosswalk or crossing in any unpaved street within the city without first protecting such bridge, culvert, sidewalk, crosswalk or crossing with heavy plank sufficient in strength to warrant against breaking or damaging of such bridge, culvert, sidewalk, crosswalk or crossing.
(2005 Code, § 5-333)