All work shall be protected with barricades furnished by the person, firm, or corporation to whom the permit has been issued to do the work, upon which shall be printed the name and address and telephone number of the person authorized by the city to make the excavation. The barricades shall be of a type approved by the city.
(`79 Code, § 91.102) (Ord. 528, passed 5-17-54; Am. Ord. 658, passed 3-16-64; Am. Ord. 1022, passed 12-16-85; Am. Ord. 88-134, passed 12-5-88) Penalty, see § 91.99