(a) All excavations sites shall be provided with all necessary safety devices to protect persons and animals from falling into ditches or pits. Such devices shall include, but not exclusively, warning signs, lamps and barricades and, where practicable, secure planking for pedestrians to cross upon, which shall be well lighted the entire way between the period from sunset to sunrise.
(1978 Code Sec. 19-14)
(b) Between the hours of sunset and sunrise, upon bridges for maintaining traffic over excavations, the roadway shall be indicated by a sufficient number of green lights, so as to clearly identify the course of the roadway and the edges thereof, and the edges of the bridge itself shall be indicated by red lights.
(1978 Code Sec. 19-15)
(c) All persons causing any excavations to be made for sidewalks shall have the place of excavation properly graded and protected and shall properly barricade such place for the protection of the public. Whenever necessary, they shall, at their own expense, properly erect masonry or steel construction or a sufficient retaining wall to properly support the adjoining earth. Such retaining wall be properly coped or provided with an iron railing to guarantee safety to the public.
(1978 Code Sec. 19-16)