50.02   NUISANCES ENUMERATED.
The following subsections include, but do not limit, the conditions that are deemed to be nuisances in the City:
(Code of Iowa, Sec. 657.2)
1.   Offensive Smells.  Erecting, continuing, or using any building or other place for the exercise of any trade, employment, or manufacture that, by occasioning noxious exhalations, unreasonably offensive smells, or other annoyances, becomes injurious and dangerous to the health, comfort, or property of individuals or the public.
2.   Filth or Noisome Substance.  Causing or suffering any offal, filth, or noisome substance to be collected or to remain in any place to the prejudice of others.
3.   Impeding Passage of Navigable River.  Obstructing or impeding without legal authority the passage of any navigable river, harbor, or collection of water.
4.   Water Pollution.  Corrupting or rendering unwholesome or impure the water of any river, stream, or pond, or unlawfully diverting the same from its natural course or state, to the injury or prejudice of others.
5.   Blocking Public and Private Ways.  Obstructing or encumbering, by fences, buildings or otherwise, the public roads, private ways, streets, alleys, commons, landing places, or burying grounds.
6.   Billboards.  Billboards, signboards, and advertising signs, whether erected and constructed on public or private property, that so obstruct and impair the view of any portion or part of a public street, avenue, highway, boulevard or alley or of a railroad or street railway track as to render dangerous the use thereof.  (See also Section 62.06)
7.   Storing of Flammable Junk.  Depositing or storing of flammable junk, such as old rags, rope, cordage, rubber, bones and paper, by dealers in such articles within the fire limits of the City, unless in a building of fireproof construction.  (See also Chapter 51)
8.   Air Pollution.  Emission of dense smoke, noxious fumes, or fly ash.
9.   Weeds, Brush.  Dense growth of all weeds, vines, brush, or other vegetation in the City so as to constitute a health, safety, or fire hazard.
10.   Dutch Elm Disease.  Trees infected with Dutch elm disease.  (See also Chapter 151)
11.   Airport Air Space.  Any object or structure hereafter erected within 1,000 feet of the limits of any municipal or regularly established airport or landing place, which may endanger or obstruct aerial navigation including take-off and landing, unless such object or structure constitutes a proper use or enjoyment of the land on which the same is located.
12.   Houses of Ill Fame.  Houses of ill fame, kept for the purpose of prostitution and lewdness; gambling houses; places resorted to by persons participating in criminal gang activity prohibited by Chapter 723A of the Code of Iowa or places resorted to by persons using controlled substances, as defined in Section 124.101 of the Code of Iowa, in violation of law, or houses where drunkenness, quarreling, fighting or breaches of the peace are carried on or permitted to the disturbance of others.
13.   Occupational Materials.  The outside storage of pipe, lumber, forms, machinery, or occupational materials upon property in the front or side yard corner lot or visible from public street in a residential district.
14.   Wood Accumulation.  The accumulation of any piles of wood which are not neatly stacked or secured in a stable manner to avoid collapse.
15.   Residential Property; Not Planted After Construction.  Property in a residential district not seeded, sodded, or otherwise planted with a ground cover more than 240 days after any disturbance in the front or side yard of the property caused by construction, grading, or other activity, excluding gardens; or at any time prior to the 240 days if the property is causing erosion or drainage problems on the same or nearby properties, including public streets.
16.   Exterior Wall Surfaces Not Maintained.  Any structure, or portion thereof, in any zoning district whose exterior wall surfaces are not maintained and kept in repair using materials compatible with the remaining undamaged wall surfaces and recognized as acceptable pursuant to the City building codes and exterior walls not completed in accordance with City-approved construction plans within 360 days after construction commences.
17.   Construction Materials.  Any construction materials, including piles of dirt, sand and sod left in the open on property or street right-of-way more than 60 days after construction has been completed or a certificate of occupancy has been issued, whichever occurs first.
18.   Grass Height.  Grass growing on land in the City which exceeds eight inches in height.