No person, firm or corporation engaged in or employing others in excavating, opening any hole or obstructing a portion or all of any street, alley, sidewalk or other public way shall fail to do the following so that the condition will not reasonably prove dangerous to life or limb and to prevent injury to persons or animals:
(a) Have such excavation, opening or obstruction adequately protected by suitable barricades at all times; or,
(b) Install and maintain at all times during the night such warning devices or lights so as to provide adequate warning of such excavation, opening or obstruction.
(Ord. 30-2012. Passed 12-12-12.)