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 STRUCTURAL
Bridges and Trestles-Continued
Splices, Bolts, Rivets, Screws, and Other Connections:
rust
corrosion
lose
missing
broken welds
other damage
Movable Bridges:
rust
corrosion
wear
inadequate lubrication. (Examine through complete operating
cycle.)
Utility Supports:
rust
corrosion
loose
missing
or broken parts
Utility Lines:
corrosion
leaks
sagging
insulation and waterproofing defects
mechanical damage
inadequate or missing protection barriers
5-14
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