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토목 인프라 점검 19개 항목

Cantilever Mast Arm Traffic Signal Structure Inspection

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Structural and fatigue inspection of cantilever mast arm poles supporting traffic signals and luminaires, emphasizing arm-to-pole connections and anchor systems.

AASHTO LTS SpecificationMUTCDFHWA Sign and Signal Structures

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Pole Identification

  • Structure/pole ID *
  • Date of inspection *
  • Mast arm length (feet)
  • Is a lift/bucket truck required to reach the arm connection?

Foundation & Anchor Bolts

  • Are anchor bolts free of cracking, corrosion, or missing/loose nuts? *
  • Are double-nut leveling connections properly gapped and torqued? *
  • Is the foundation free of cracking, settlement, or exposed reinforcement? *
  • Is the base plate-to-pole weld free of visible cracks? *

Arm-to-Pole Connection

  • Is the mast-arm-to-pole flange/gusset connection free of weld cracking? *
  • Are connection bolts tight with no signs of slip, elongation, or missing hardware? *
  • Is the arm free of excessive vertical deflection or drooping beyond tolerance?
  • Is a handhole cover present and its reinforcement weld crack-free?

Pole, Attachments & Electrical

  • Is the pole free of dents, buckling, corrosion perforation, or impact damage? *
  • Are signal heads, backplates, and luminaires securely mounted? *
  • Is wiring properly grounded with intact conduit and no exposed conductors?
  • Is the pole cap/top plate sealed to prevent water intrusion?

Rating & Actions

  • Condition rating (0-9)
  • Are critical structural deficiencies present? *
  • Findings and recommended actions

Cantilever Mast Arm Traffic Signal Structure Inspection 체크리스트 전체 다운로드

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