What inspection method is primarily used for bridge inspection of steel deck members?

The primary inspection method used for bridge inspection of steel deck members is the visual inspection method. This approach involves thoroughly examining the visible parts of the steel deck for signs of distress such as cracks, corrosion, deformations, and other structural issues that may not require specialized equipment or advanced technology.

Visual inspections are essential because they provide inspectors with the opportunity to assess the overall condition of the steel members, checking for any obvious defects that could affect the safety and integrity of the bridge. This method allows for immediate feedback on the structural health of the bridge, making it a fundamental practice in routine inspections. While other methods like physical, advanced, or technical may play roles in specific situations or for particular elements, visual inspection remains the cornerstone for assessing steel deck members in bridge safety evaluations.