1.   Purpose. The A (Agricultural) District is designed to preserve agricultural resources from incompatible nonagricultural uses until such time as they are ready to be developed.

   2.   Permitted uses. Principal permitted uses in the A District are as follows:

      A.   Agriculture and the usual agricultural buildings and structures, but not on a scale that would be obnoxious to adjacent areas because of noise or odors. This provision shall not be construed to allow livestock husbandry of common farm-type animals or specialized poultry, pigeon, rabbit, and other animal farms.

      B.   One-family dwellings.

      C.   Truck gardening, private nurseries, and greenhouses.

      D.   Private riding stables. Such structure must be located at least 100 feet from all boundary lines of the property on which it is located.

      E.   Grain elevators with usual accessory structures.

      F.   Forest and forestry activities.

      G.   Parks, playgrounds, recreational fields, golf courses, and public and private outdoor recreation facilities.

      H.   Cemeteries, both public and private (minimum 10 acres).

      I.   Public utility structures and the necessary equipment for the operation thereof.

      J.   Transmitting stations and towers shall be subject to the recommendation of the Planning and Zoning Commission and the approval of the City Council. The base of the tower must be located a distance at least equal to the height of the tower from all of the lot lines.

      K.   Airports and landing fields; provided, that adequate approach and clear zones are obtained.

      L.   Buildings erected and used by a department of the federal, State, County, or municipal governments.

      M.   Mining, extraction, and processing of sand, gravel, top soil, or other natural resources, provided the land is restored to a condition suitable for the permitted uses of this district subject to recommendations of the Planning and Zoning Commission and approval by City Council. The City Council may require special conditions for such use.

   3.   Permitted Accessory Uses. The following accessory uses and structures shall be permitted in the A District; provided, that they conform to the requirements of Section 165.07 of this chapter:

      A.   Accessory uses and structures normally incidental and subordinate to the permitted principal uses, and structures which are primarily adopted by reason of nature and area for use for agricultural purposes.

      B.   Home occupations.

      C.   Private garage or carport.

      D.   One temporary board or sign, not to exceed 50 square feet in area, referring to the construction, lease, hire, or role of a building premise or lots; which sign shall refer to property on which the sign is located, and shall be removed as soon as the premises are sold or leased or construction completed.

      E.   Temporary buildings or structures for uses incidental to construction work, which shall be removed upon the completion or abandonment of the construction work.

      F.   Roadside stands, offering for sale only agricultural products or other products produced on the premises.

      G.   Signs, not exceeding 10 square feet in area, identifying the premises or indicating the product grown or material and equipment used on the premises.

   4.   Height Regulations. No limitations; provided, however, that no structure shall be permitted to extend into the approach zone, or clear zones or other restricted air space required for the protection of any public airport.