What is the risk associated with inadequate maintenance of in-service bridges?

Inadequate maintenance of in-service bridges poses a significant risk as it increases the likelihood of structural failure and accidents. Over time, bridges are exposed to various environmental factors, wear and tear, and other stresses that may lead to deterioration if not properly maintained. Regular inspections and maintenance help identify potential issues such as corrosion, cracks, or fatigue in the materials, which, if left unaddressed, can compromise the structural integrity of the bridge.

When maintenance is neglected, the chances of a bridge experiencing a catastrophic failure during its use rise sharply. This not only endangers lives but can also lead to substantial economic consequences due to accidents caused by failing infrastructure. Ensuring proper upkeep of bridges is essential for maintaining safety and reliability for users.

Other options, while they may have some relevance, do not directly address the critical safety risks involved. Factors like reduced traffic volume, decreased aesthetic value, and higher maintenance costs are consequences or observations rather than direct risks tied to neglecting maintenance. These issues may impact the bridge's operation or perception but pale in comparison to the immediate and severe dangers of structural failure.