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III. LANDSCAPE/SITE TREATMENT <br />Design for Screening <br />and Separation <br />Fig. 36: Separation of marginally compatible <br />uses with only plants. <br />20. Landscape design for screening and separation <br />can be oriented toward full privacy, separation of uses, or <br />screening unsightly elements such as dumpsters, etc. <br />21. Full privacy should require an opaque fence or <br />evergreen barrier at least six feet high or above eye level, <br />depending on the angle of view. Noise reduction requires <br />a dense fence (i.e., concrete/masonry) wall or berm in <br />addition to plantings. <br />22. Area separation requires a continuous physical barrier <br />not less than three feet high. A greater degree of <br />separation would require a higher opaque barrier. A <br />separation planting strip could be deciduous or evergreen. <br />23. Landscape design for screening should reflect the <br />degree of concealment desired. Plants are not often <br />effective in providing full screening; they should be used <br />in combination with a wall or landform. Plant screens are <br />most effective when used to soften or provide soft <br />transition to a screen wall or break up the visual lines of a <br />partially concealed structure. <br />24. A privacy fence should be required along side and <br />rear yards if adjoining single family zones as specified <br />below: <br />• 6 feet high <br />• sight -obscuring wood (or equivalent) fence <br />• exterior materials and colors shall be consistent with <br />building architecture. <br />25. The following are alternative design solutions for <br />various degrees of screening and separation: <br />Alternative 1. Using only plantings for partial separation <br />of marginally compatible uses such as parking from <br />residences or recreational _sites. <br />Area: Width not less than 15 feet. <br />At least one row of deciduous and evergreen trees <br />staggered and spaced not more than 15 feet apart. <br />At least one row of evergreen shrubs spaced not more than <br />five feet apart which will grow to form a continuous <br />hedge at least five feet in height within three years of <br />planting. <br />Lawn, low growing evergreen shrubs, and evergreen <br />ground cover covering the balance of the area. <br />25 <br />