A bridge in poor condition likely has which type of defects?

The condition of a bridge is assessed based on the nature and severity of various defects present. When a bridge is described as being in poor condition, it typically indicates that the structural integrity is compromised, which often translates to the presence of major defects that impact the bridge's strength. These major defects can include severe corrosion of vital structural components, significant cracking or spalling of concrete, or dislocation of critical components such as bearings and joints. Such defects not only pose immediate safety risks but also indicate that the bridge may be incapable of handling normal traffic loads, necessitating repairs or even closure for safety reasons.

In contrast, other options imply varying levels of defect severity. Inherent defects might suggest minor or normal wear and tear rather than critical problems. Widespread minor defects, while potentially numerous, generally do not impair overall strength to an extent that would categorize a bridge as being in poor condition. Lastly, the absence of significant defects would indicate a bridge that is likely in a good or fair condition, directly opposing the premise of the question regarding a bridge in poor condition. Hence, major defects impacting strength align with the definition of a bridge that is deemed to be in poor condition.