Superstructure

• Condition of main and secondary members
• Condition and movement of bearings
• Excessive deflection
• Condition of Utilities

Deck

• Condition of deck, sidewalks, and railings
• Expansion joints for clearance and seal
• Condition of drainage system

Substructure

• Condition of abutments and piers
• Settlement and rotation
• Undermining of footings

Roadway

• Condition of approach pavement
• Condition of shoulders and slopes
• Condition of traffic safety features

Waterway

• Channel profile & alignment
• Scour at footings
• Embankment erosion

Common Defects of Main Bridge Materials

• Concrete -- cracking, spalling, scaling, and efflorescence
• Steel & Iron -- corrosion, cracking, loose connections, and frozen pins.
• Timber -- decay, deterioration, and loose connections.

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