Bridge inspection refers to a technical investigation of the bridge's usage. If there are defects and damaged areas in the bridge, and there are serious conditions with a developing trend, it is necessary to promptly understand the main reasons for the defects and damage. This helps in analyzing and evaluating their impact on the bridge's quality and load-bearing capacity.

A reliable data basis for reinforcing design and bridge maintenance. Therefore, bridge inspection is an essential prerequisite for bridge maintenance, repair, and reinforcement, ensuring the reliability of the repair and reinforcement plans. It is also an indispensable and essential part of bridge assessment, maintenance, repair, and reinforcement work.