The following type fences are prohibited and are a nuisance constituting an unsafe and unlawful condition, and may be abated pursuant to Chapter 9.56 of this code:
(a) Barbed wire fences;
(b) All wire, twine or rope fences consisting of one or more strands of wire, twine or rope less than three feet in height and within three feet of any public sidewalk.
(Ord. 3754 § 1 (part), 1987)