Which statement is not accurate regarding the 2014 study on bridges?

The correct answer highlights that the statement about 12.4% of bridges being considered structurally obsolete is not accurate. This is important to understand, as structural obsolescence refers specifically to bridges that are not only deficient in terms of their structural integrity but are also unable to meet current safety standards or modern design requirements.

The other statements present data regarding the condition of bridges based on the 2014 study. The figure of 61,365 bridges being structurally deficient indicates a significant portion of the infrastructure requiring attention. Saying that 10% of bridges are structurally deficient reflects a broader perspective on national infrastructure health. Additionally, 84,525 bridges being classified as functionally obsolete implies that, while they may still be safe to use, they no longer adequately serve the transportation needs due to factors such as outdated designs or inadequate load capacity.

By contrast, stating that 12.4% of bridges are structurally obsolete is misleading, as this term encompasses a narrower category than what is commonly discussed in reports evaluating bridge conditions. This distinction is crucial for understanding the state of infrastructure and the need for investment in repairs and updates.