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🏛️Federal & Industry Standards
National Bridge Inspection Standards (NBIS)
WebIowa Department of Transportation (Iowa DOT)2023 Standard Specifications
The NBIS (23 CFR 650 Subpart C) establishes the national standards for bridge inspection procedures, frequency, qualifications of inspectors, and reporting requirements. All highway bridges on public roads must be inspected in accordance with these federal standards.
Published by FHWA. Final rule update 2022.
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