The excavation and all piles of excavated material or any material used in the work to be performed in the opening for which a permit is issued shall be carefully guarded and lighted, or caused to be carefully guarded and lighted, by the person to whom such permit has been issued, who shall be liable for all loss and damage caused by the prosecution of the work or failure to properly guard or maintain said opening.
('74 Code, § 108-8) (Ord. 19-1974, passed 12-30-74)