Understanding FHWA & AASHTO Bridge Inspection Standards
In the United States, maintaining safe and reliable bridges relies heavily on the bridge inspection standards set by two key organizations: the FHWA (Federal Highway Administration) and AASHTO (American Association of State Highway and Transportation Officials). Most importantly, the FHWA enforces the National Bridge Inspection Standards (NBIS), which legally mandate regular bridge inspections for all public road bridges. Meanwhile, AASHTO complements this framework by offering expert guidance and best practices, including the widely respected AASHTO Guide Manual for Bridge Element Inspection. Together, these organizations shape how bridge inspections are conducted, ensuring the safety, durability, and longevity of critical infrastructure nationwide. FHWA’s Critical Role in Bridge Inspection Standards National Bridge Inspection Standards (NBIS) The NBIS, National Bridge Inspection Standards, established by the FHWA, sets mandatory guidelines detailing how often and by what met...