A. It is unlawful for any person to make any excavation or dig any hole, drain, trench or ditch in any right-of-way in the city without providing a sufficient flashing light at night and a temporary fence or suitable barrier around or in front of such excavation.

B. It is unlawful for any person to maintain a well, cellar, pit or other excavation of more than two feet in depth on any unenclosed lot, without providing substantial curbing, covering or protection of such excavation. [Code 2006 § 10-1-2].