Explain the Inventory inspections - Inspection of Bridge?

These inspections are normally performed following new construction, modifications, or repair to establish as-built or base line structural conditions and collect structural inventory and appraisal data. Inventory inspections are often referred to as “baseline inspections” since they generally become the benchmark for assessing the results of all future inspections. Inventory inspections identify potential structural problems; such as if the facility is scour critical. Aided by a prior detailed review of plans, it is during this inspection that any underwater members are noted for subsequent focus and special attention.