telecommunication, communications line stake flag utility service beside a footpath and river

american association beside buried cable canada colored commercial communications construction dig drinking energy engineering excavation facilities flag flagging flags footpath fuel gas government industrial irrigation landscaping line lines locating maintenance marker marking markings pipe pipeline proposed public pvc reclaimed residential resistant resort river service services sewer sign slurry stake states surveying tape tear telecommunication telecommunications telephone tough trench underground united unknown utilities utility waexcavation warning water works