Persons in the process of excavating near or beneath public sidewalks are subject to the same regulations in doing such excavating as they would be were they excavating in the city streets, and shall take reasonable precautions for the public safety during the day and night, and shall not permit such excavations to disrupt travel over said sidewalks for an unreasonable period of time.
(Prior Code, § 12.20.050) Penalty, see § 90.999