521.04 SIDEWALK OBSTRUCTIONS; DAMAGE OR INJURY.
   (a)   No person shall place or knowingly drop upon any part of a sidewalk, playground or other public place any tacks, bottles, wire, glass, nails or other articles which may damage property of another or injure any person or animal traveling along or upon such sidewalk or playground.
 
   (b)   No person shall walk on, or allow any animal upon, or injure or deface in any way, any soft or newly laid sidewalk pavement.
 
   (c)   No person shall place, deposit or maintain any merchandise, goods, material or equipment upon any sidewalk so as to obstruct pedestrian traffic thereon except for such reasonable time as may be actually necessary for the delivery or pickup of such articles. In no such case shall the obstruction remain on such sidewalk for more than one hour.
 
   (d)   No person shall use any street or sidewalk area, including the lateral strip area between the street and sidewalk, for the display of merchandise or for any advertising display without the written permission of the Mayor.
 
   (e)   No person shall unload upon, or transport any heavy merchandise, goods, material or equipment over or across any sidewalk or curb without first placing some sufficient protection over the pavement to protect against damage or injury; such protection shall be removed at the close of each working day and the surface of the sidewalk immediately cleaned and left in a passable condition. The affected area shall be rendered safe and free from danger.
 
   (f)   No person shall allow any cellar or trap door, coal chute or elevator or lift opening in any sidewalk to remain open without providing suitable safeguards to protect and warn pedestrian traffic of the dangerous condition.
   All openings in the sidewalks of the Municipality leading to basement cellars or other open spaces under such sidewalks shall be provided with covers constructed of rough, corrugated or barred metal of sufficient strength to support the traffic thereon and to prevent danger of slipping by pedestrians.
 
   (g)   Whoever maintains any area between any building and a public sidewalk in the Municipality, or a stairway descending from such sidewalk or other public place, shall erect and maintain on both sides thereof an iron fence at least three feet in height.
 
   (h)   Whoever violates this section is guilty of a minor misdemeanor.