No land shall be graded, cut or filled so as to create a slope exceeding a vertical rise of one (1) foot for each two and one half (2 ½) feet of horizontal distance between abutting lots or adjoining tracts of land, unless a retaining wall of sufficient height and thickness, or other acceptable control measure to prevent slides and erosion is provided.
(Ord. 2004-111. Passed 7-26-04.)