Which type of inspection is conducted after a significant event such as an earthquake or flood?

A special inspection is conducted after significant events like earthquakes or floods to assess the immediate safety and structural integrity of a bridge. Following such events, there may be concerns about damage that could compromise the safety of the structure, which is why this type of inspection is critical. The focus is on identifying any potential hazards that could pose risks to traffic or pedestrians.

Routine inspections are typically scheduled assessments that focus on more general aspects of the bridge’s condition. Detailed inspections involve a thorough examination of the bridge elements, including components that may not be visually accessible, and are usually planned rather than triggered by an event. Periodic inspections follow a set schedule as defined in maintenance protocols and do not specifically respond to emergencies. In contrast, a special inspection is reactive and aims to immediately evaluate any changes in the bridge's condition due to unforeseen circumstances.