A.   Barricades And Lights Required:
      1.   Any person, firm, or corporation laying or repairing any pavement on a street, sidewalk, or other public place, or making an excavation in any such place, shall maintain suitable barricades to prevent injury to any person or vehicle by reason of the work. Such barricades shall be protected by a light at nighttime.
      2.   Any defects in any such pavement shall be barricaded to prevent any injury. Any person, firm, or corporation properly maintaining any opening or excavation in any such place shall guard the opening or excavation while the same remains open by proper barricades and lights. (1976 Code § 12.16.020)
   B.   Disturbing Barricades And Lights: It is unlawful to disturb or interfere with any barricade or lights lawfully placed to protect or mark any new pavement, excavation, or opening in any public street, alley, or sidewalk. (1976 Code § 12.16.030)