How often should underwater inspections be performed on bridges with submerged foundations?

Underwater inspections are crucial for assessing the condition of submerged foundations on bridges, as these areas are prone to deterioration and damage that may not be visible from above water. The recommendation to perform these inspections at least every five years is based on best practices in bridge maintenance and the potential for undetected issues to develop in submerged environments.

This timeframe allows for the identification of any degradation, impacts from scour, or other underwater hazards that could compromise the integrity of the bridge. Regular inspections help ensure that any issue can be addressed before it leads to more significant structural problems and enhances overall safety for users of the bridge.

By following this guideline, bridge inspectors contribute to the longevity and safety of infrastructure, ensuring that submerged foundations remain sound over time.