A. Height: The height of any single rockery or segmental block wall in residential zone shall not exceed ten feet (10'). The height of any single rockery or segmental block wall in commercial or manufacturing zone shall not exceed twelve feet (12').

B. Terraced Retaining Walls: Segmental block or rock terraced retaining walls are allowed, provided the terraced retaining walls are separated by a minimum distance of one-half (1/2) the height of the tallest exposed face of the terraced retaining walls. The total maximum combined height for a terraced retaining wall in a residential zone shall be twenty feet (20') and in a commercial or manufacturing zone shall be twenty-four feet (24'). The terraced retaining wall shall have a maximum slope of ten (10) horizontal to one (1) vertical (10H:1V) between walls.