Fences and/or culverts shall be installed along irrigation ditches and canals when required by the Planning Commission. Fences and/or culverts shall also be installed along the perimeter of a subdivision when the Planning Commission determines such fence and/or culvert is necessary to protect adjacent  zones. (PZSC § 03-28-006 (10))(Ord. No. 96-08, Amended, 03/20/96)