What condition is particularly critical to assess in masonry bridge components?

When assessing masonry bridge components, spalling is particularly critical to evaluate due to its implications for structural integrity and durability. Spalling refers to the flaking, chipping, or breaking off of surface layers of masonry, which can be caused by several factors, including freeze-thaw cycling, moisture infiltration, and chemical deterioration. This condition can expose underlying materials to further degradation and compromise the strength of the entire structure.

Identifying spalling early allows inspectors to address underlying issues such as water intrusion or moisture trapping that can accelerate deterioration. The consequences of ignoring spalling can be severe, potentially leading to larger sections of the masonry failing or collapsing. Therefore, thoroughly assessing spalling during inspections can help ensure the longevity and safety of masonry bridge components.