Define Equipments and tools for Inspection of Steel/Cast Iron Substructures?

To ensure thorough inspection, the area must be cleared of all marine growth. Hand tools such as wire brushes and scrappers are sufficient for smaller jobs. For larger area, high-pressure water jets are most effective method. Sounding of structure can be done with a small hammer or pickaxe. Callipers and scales are used to determine thickness of steel flanges, webs and plates. Visual documentation can be recorded using underwater camera.