measuring remaining metal thickness on bridges

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