All bridges have a structure based on steel frames and supports. Some are totally encased in concrete and others have the metalwork exposed. It is essential to carry out maintenance checks to assess the serviceability of the bridge itself. Routine inspections vary from a 2 to 6 year cycle depending on the type of bridge.
Tritex multigauges are incredibly useful for measuring remaining metal thickness on bridges through the protective rust surface on weathering steel.
Visit the Tritex NDT Ltd website for more information on Bridges Corrosion Applications