The foregoing provisions of this chapter shall not apply to:
(A) Permanent buildings.
(B) Existing grades, which, by reason of natural topography, exceed 30 inches above the level of the center of the adjacent intersection; provided, that no obstruction to cross-visibility not specifically excepted herefrom shall be installed, set out or maintained on any existing grade which is more than 30 inches but less than 72 inches above the level of the center of the adjacent intersection.
(C) Trees having limbs and foliage trimmed in such manner that no limbs or foliage extend into the area between 30 inches and 72 inches above the level of the center of the adjacent intersection.
(D) Fire hydrants, public utility poles, street markers and traffic-control devices.
(Ord. 501, passed 2-9-76)