§ 93.04  PUBLIC NUISANCES AFFECTING PEACE, SAFETY.
   The following are declared to be nuisances affecting peace and safety:
   (A)   Snow on sidewalks. All snow and ice not removed from public sidewalks 12 hours after the snow and ice has ceased to be deposited thereon;
   (B)   Obstruction of view of traffic. All trees, hedges, billboards or other obstructions which prevent persons from having a clear view of traffic approaching an intersection from cross streets in sufficient time to bring a motor vehicle driven at a reasonable speed to a full stop before the intersection is reached;
   (C)   Low limits. All limbs of trees which are less than eight feet above the surface of any public sidewalk or street;
   (D)   Low wires. All wires which are strung less than 15 feet above the surface of any public street or alley;
   (E)   Dangerous buildings. All buildings, walls and other structures which have been damaged by fire, decay or otherwise to an extent exceeding one-half of their original value or which are so situated as to endanger the safety of the public;
   (F)   Explosives. All explosives, inflammable liquids and other dangerous substances or materials stored or accumulated in any manner or in any amount than that provided by law;
   (G)   Fireworks. All use or display of fireworks except as provided by law;
   (H)   Unlawful buildings. All buildings and all alterations to buildings made or erected in violation of fire ordinances concerning manner and materials and construction;
   (I)   Obstruction and excavation. Obstructions and excavations affecting the ordinary use of the public streets, alleys, sidewalks or public grounds except under such conditions as are provided by ordinance, and any other excavation left unprotected or uncovered indefinitely or allowed to exist in such manner as to attract people;
   (J)   Junk. The piling, storing or keeping of old machinery, wrecked or junked vehicles and other junk or debris;
   (K)   Obstruction of streets. Any use of property abutting on a public street or sidewalk, or use of a public street or sidewalk which causes large crowds of people to gather obstructing traffic and the free use of public streets or sidewalks;
   (L)   Signs over streets. All hanging signs, awnings and other similar structures over public streets or sidewalks, or so situated as to endanger public safety, not constructed and maintained as provided by
law, or without proper permit;
   (M)   Water from buildings. The allowing of rain, water, ice or snow to fall from any building on any public street or sidewalk or to flow across any public sidewalk;
   (N)   Attractive dangers. All dangerous, unguarded machinery, equipment or other property in any public place, or so situated or operated on private property as to attract the public;
   (O)   Material from air. Throwing, dropping or releasing printed matter, paper or any other material or objects over the city front an airplane, balloon or other aircraft, or in such, manner as to cause such material to fall or land in the city;
   (P)   Altering drainage. Placing entrance culverts, or doing any act which may alter or affect the drainage of  public streets or alleys or the surface or grade of public streets, alleys or sidewalks without proper permit;
   (Q)   Repairing vehicles on streets. Making repairs to motor vehicles or tires in public streets or alleys, excepting only emergency repairs when it will not unduly impede or interfere with traffic;
   (R)   Trash in streets. Throwing, placing, depositing or burning leaves, trash, lawn clippings, weeds, grass or other material in the streets, alleys or gutters;
   (S)   Unauthorized signs. Erecting, painting or placing of unauthorized traffic signs or advertising signs in streets or alleys on sidewalks or on private property;
   (T)   Fires. The setting of fire is prohibited under the provisions of this code;
   (U)   Interference with radios or television. All unnecessary interference with and disturbance of radios or television sets caused by defective electrical appliances and equipment or improper operation thereof;
   (V)   Fire hazards. Any building or structure which, by reason of age, dilapidated condition, defective chimneys or stove pipes, defective electric wiring, defective gas connections, defective heating apparatus or other defect, is susceptible to fire, and which thus endangers life or limb or other buildings or property within the city; and any accumulations of brush, timber or other materials or substance on either vacant or improved property, which accumulations are susceptible to fire or capable of spreading fire to adjacent property;
   (W)   Hazardous buildings. Any building which because of inadequate maintenance, dilapidation, physical damage, unsanitary condition or abandonment constitutes a fire hazard or a hazard to public safety or health of the residents of the city;
   (X)   Other acts detrimental to peace and safety. All other conditions, acts or things which are liable to cause injury to the person or property of anyone; and
   (Y)   Driving motorized vehicles on public and private lands. Driving or operating any automobile, motorized scooter, motorcycle or any other type of motorized vehicle on any public beach, dike, sidewalk or in any city park or the driving of such vehicles on private property of others without the consent of the owner obtained prior to said operation.
(1990 Code, § 1503.040)  Penalty, see § 10.99