On a corner lot, nothing shall be erected, placed, planted or allowed to grow in such a manner as materially to impede vision between a height of two and one-half and ten feet in a triangular area formed by a diagonal line between two points on the right-of-way lines, 20 feet from where they intersect, except where there is a curb, by a diagonal line between two points on the curb line, 25 feet from where they intersect.
(1992 Code, § 152.038) (Ord. passed 11- -1988) Penalty, see § 152.999