No excavation shall be allowed within 120 feet of the future right-of-way line for any street or highway, nor within 50 feet of any private property line. However, an excavation may be extended to within not less than 25 feet of future right-of-way line for street, or not less than 25 feet of private property line if such excavation is clearly indicated on the plat for the excavation, the excavation is reasonably hard rock, and the excavation is backfilled with suitable material to a distance not less than 120 feet from the future street or highway line, or not less than 50 feet from the private property line, as the case may be.
('72 Code, § 10-94) (Ord. O-72-19, passed 2-2-72) Penalty, see § 151.999