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 STRUCTURAL
Tunnels and Underground Structures-Continued
n Metal Roofs:
rust
corrosion
inadequate supports
n Pipeline Tunnels:
rust
corrosion
misalignment
broken
leakage
n Pipeline Supports and Anchors:
rust
corrosion
loose, missing or broken parts
n Defective drainage systems or facilities:
particularly in ammunition tunnels
indicated by dampness
ponding
n General Condition or Ventilation Equipment:
apparent defects in operation
rust
corrosion
loose, missing or other damage to related parts
n Lighting Systems and Fixtures:
poor operating condition
inadequate
improper type
5-48
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