It is unlawful for any person to throw or deposit on any street or alley any glass, glass bottle, nails, tacks, wire, cans, trash, garbage, rubbish, litter, offal, leaves, grass, or any other debris likely to be washed into the storm sewer and clog the storm sewer, or any substance likely to injure any person, animal, or vehicle.
(Code of Iowa, Sec. 321.369)