§ 152.20 ENVIRONMENTAL, OPEN SPACE AND ACCESS REQUIREMENTS.
   (A)   General requirements. Condition of soil, ground water level, drainage, and topography shall not create hazards to the property or the health and safety of the occupants. The site should not be exposed to objectionable smoke, noise, odors, or other adverse influences and no portion subject to unpredictable or sudden flooding.
   (B)   Area. Minimum total park area shall be 10 acres.
   (C)   Soil and ground cover requirements. Exposed ground surfaces in all parts of every mobile home park shall be paved or covered with stone, screenings, or other solid material or protected with a vegetative growth that is capable of preventing soil erosion and of eliminating objectionable dust.
   (D)   Site drainage requirements. The ground surface in all parts of every mobile home park shall be graded and equipped to drain all surface water in a safe, efficient manner.
   (E)   Use requirements.
      (1)   No part of any park shall be used for nonresidential purposes, except such uses that are required for the direct servicing and well-being of park residents and for the management and maintenance of the park.
      (2)   Nothing contained in this subsection shall be deemed as prohibiting the sale of a mobile home located on a mobile home stand and connected to the pertinent utilities.
   (F)   Required separation between mobile homes.
      (1)   Mobile and manufactured homes shall be separated from each other by at least 20 feet. Mobile and manufactured homes placed end-to-end must have a minimum clearance of 15 feet. Accessory structures may be as close to the primary dwelling as allowed by State Fire and Building Codes provided there is a minimum of 10 feet separation between any other structure.
      (2)   An accessory structure such as an awning, cabana, storage cabinet, carport, windbreak and porch which has a floor area exceeding 25 feet and has an opaque top or roof shall, for purposes of all separation requirements, be considered to be part of the mobile home.
      (3)   Minimum lot sizes shall not be less than 5,000 square feet.
   (G)   Open space. A minimum of 500 square feet per mobile home shall be provided for definable play areas and open space within the mobile home park. Such areas of open space and play area shall not be areas included within any setback nor shall they include any areas of less than 20 feet in length or width.
   (H)   Required setbacks, buffer strips and screening.
      (1)   All mobile homes shall be located at least 30 feet from any property boundary line abutting upon a public street or highway and at least 20 feet from other property boundary lines.
      (2)   There shall be a minimum distance of 15 feet between the mobile home stand and abutting park street.
      (3)   All mobile home parks located adjacent to residential, recreational, commercial or industrial land uses shall provide screening such as fences, shrubs, and trees along the property boundary line separating the park and such uses and shall be maintained in a neat and orderly fashion.
   (I)   Cluster development. Cluster development shall be encouraged; in such cases, the Planning Commission and Council may vary or modify the strict application and requirements of divisions (F), (G) and (H) of this section as applied herein to more readily accommodate this development concept.
   (J)   Average density. Notwithstanding the type of development concept used, the maximum density shall be 7 mobile homes per acre.
   (K)   Accessory buildings.
      (1)   One accessory building for outside storage of equipment and refuse is required.
      (2)   The accessory buildings shall be a minimum of 48 square feet and designed of weather resistant material that will enhance the general appearance of the lot.
   (L)   Park street system and car parking.
      (1)   General requirements. All mobile home parks shall be provided with safe and convenient vehicular access from abutting public streets or roads to each mobile home lot. Such access shall be provided by streets, driveways or other means.
      (2)   Park entrance. Entrances to mobile home parks shall be designed to minimize congestion and hazards and allow free movement of traffic on adjacent streets. No parking shall be permitted on the park entrance street for a distance of 100 feet from its point of beginning.
      (3)   Internal streets. Surfaced roadways shall be of adequate width to accommodate anticipated traffic and in any case shall meet the following minimum requirements:
         (a)    All streets except minor streets shall be a minimum of 30 feet in width from face of curb to face of curb. Streets without curb shall be considered minor streets;
         (b)   Dead-end streets shall be limited in length to 500 feet and shall be provided at the closed end with a cul-de-sac having an outside roadway diameter of at least 100 feet. All dead-end streets shall be marked with approved signs at the entrance to the dead-end street;
         (c)   Minor streets 25 feet in width shall be acceptable only if less than 500 feet long and serving less than 8 mobile homes or of any length if mobile home lots abut on one side only.
      (4)   Car parking. Off-street parking areas for the use of park occupants and guests. Such areas shall be furnished at a rate of at least 2 car spaces for each mobile home lot, of which at least one-half of the spaces may be in compounds. All off-street parking areas shall be paved concrete or bituminous surface or crushed rock treated with oil so it is dust-free.
      (5)   Required illuminating of park street systems. All parks shall be furnished with lighting units so spaced and equipped with luminaries placed at such mounting heights as will provide the following average maintained levels of illumination for the safe movement of pedestrians and vehicles at night:
         (a)   All parts of the park street systems: 0.6 foot candle;
         (b)   Potentially hazardous locations, such as major street intersections and steps or stepped ramps: individually illuminated, with a minimum of 0.6 foot candle.
      (6)   Street construction and design standards.
         (a)   Pavements. All streets shall be provided with a paved concrete or bituminous surface. Pavement edges shall be protected to prevent raveling of the wearing surface and shifting of the pavement base. Street surfaces shall be maintained, free of cracks, holes and other hazards.
         (b)   Grades. Longitudinal grades of all streets shall range between 0.4% and 8.00%. Transverse grades (crown) of all streets shall be sufficient to insure adequate transverse drainage.
         (c)   Storm sewers. If conditions warrant, an adequate storm sewer system shall be provided to dispose of all runoff water. The storm sewer system may be connected to existing city storm sewer system upon city approval.
         (d)   Intersections. Within 50 feet of an intersection, streets shall be at right angles. A distance of at least 85 feet shall be maintained between the center lines of offset intersection streets. Intersections of more than 2 streets at 1 point shall be avoided.
   (M)   Walks.
      (1)   General requirements. All parks shall be provided with safe, convenient, all-season pedestrian access of adequate width for intended use, durable and convenient to maintain, between individual mobile homes, the park streets and all community facilities provided for park residents. Sudden changes in alignment and gradient shall be avoided.
      (2)   Common walk system. A common walk system shall be provided and maintained between locations where pedestrian traffic is concentrated. The common walks shall have a minimum width of 4-1/2 feet.
      (3)   Individual walks. All mobile homes shall be connected to common walks, to paved streets, or to paved driveways or parking spaces connecting to a paved street. The individual walks shall have a minimum width of 2 feet.
   (N)   Patio. Each mobile home lot shall have a 4 inch concrete patio with minimum dimensions of 9 feet by 20 feet.
   (O)   Trees. A minimum of 1 tree per lot is required. In open area and park area, a minimum of 20 trees per acre is required.
   (P)   Skirt. All mobile homes shall have skirts around the entire trailer made of metal, plastic, fiberglass or comparable, noncombustible material approved by the Building Inspector and shall be painted to match the appropriate trailer so that it will enhance the general appearance thereof.
   (Q)   Tie downs. All mobile homes shall be securely anchored to the ground pursuant to such standards relating to support systems and ground anchoring systems, as approved by the city.
(1975 Code, § 4.50, Subd. 8) (Am. Ord. 116, 4th series, passed 7-1-2019)