All pits and excavations within five feet of a street, sidewalk or public alley, and all material or equipment and barriers permitted on the streets, sidewalks and public alleys, under the provisions of this chapter, shall have placed on or by them, after dark, warning lights in such manner that there shall be one light at each end, and at such intermediate points as may be necessary to afford proper warning to all travelers.
('70 Code, § 20-4) (Ord. 1981-46, passed 8-3-81) Penalty, see § 98.99