In the event that a multifamily or nonresidential Zoning District sides or backs upon an RE, SF or 2F District, or in the event that any nonresidential district sides or backs to a multifamily district, a solid screening wall or fence of not less than six feet (6') nor more than eight feet (8') in height shall be erected on the property line separating these districts. The purpose of the screening wall or fence is to provide a visual barrier between the properties. The owner of such property shall be responsible for and shall build the required wall or fence on his property line dividing his property from the residential district. In cases where the Planning and Zoning Commission finds this requirement to be impractical for immediate construction, it may grant a temporary or permanent waiver of the required screening wall or fence until such time as the screening wall or fence may be deemed necessary by the City Council. In cases where the Planning and Zoning Commission finds this requirement to be better met by an irrigated living screen, the same may be substituted for the screening wall after a landscape plan has been prepared to demonstrate equal visual screening. Any screening wall or fence required under the provisions of this section, a Specific Use Permit, or other requirement, shall be constructed of masonry or reinforced concrete (unless alternatives are specifically permitted). Screening wall alternatives shall not contain openings constituting more than forty (40) square inches in each one square foot of wall or fence surface. All wall or fence openings shall be equipped with gates equal in height and screening characteristics to the wall or fence.

Where the rear or service area of a nonresidential use is adjacent to or faces a public thoroughfare with greater than sixty feet (60') of right-of-way, screening a minimum of six feet (6') in height shall be provided. The screening fence shall be constructed to conceal the loading areas from the public traffic on the thoroughfare.

In all districts where screening of loading areas facing a street is required, screening shall be provided not less than six feet (6') in height adjacent to the loading area at the property line. Said screening shall be required along all streets except where such use was in existence at the date of adoption of this Ordinance. Screening adjacent to a street shall be masonry. Other types of screening devices may be approved by the Planning and Zoning Commission and City Council.

In all districts where screening of open storage is required, such screening shall be required only for those areas used for open storage. A six-foot (6') high fence shall be provided and maintained at the property line adjacent to the area to be screened. Screening of open storage areas may be of materials other than masonry if approved by the Planning & Zoning Commission.

Refuse storage areas not adjacent to an alley or rear service area for all uses other than single-family and duplex dwellings shall be visually screened by a six-foot (6') high solid fence on all sides except the side used for garbage pickup service; such side shall not be required to be screened.

No fence, screen wall, or other visual barrier shall be so located or placed that it obstructs the vision of a motor vehicle driver approaching any street or drive intersection, in accordance with Section 23.2 (I).

Where any alley intersects with a street, no fence or plant taller than thirty (30) inches may be placed within a sight visibility triangle defined by measuring ten feet (10') to a point along the property lines and joining said points to form the hypotenuse of the triangle. (See Illustration 12)

All required screening walls shall be equally finished on both sides of the wall.

In any residential district or along the common boundary between any residential and nonresidential district where a wall, fence, or screening separation is erected, the following standards for height, location, and design shall be observed: