Bridge

National Bridge Inspection Standards

Regulations

• National Bridge Inspections Standards Regulation (NBIS) December 14, 2004 (.pdf)
  • The complete docket for this new NBIS
  • 2009 Final Rule (pdf) (Revision to 2004 NBIS)

Guidance

• 23 CFR 650c Non-Regulatory Supplement Compliance with the National Bridge Inspection Standards (09/30/1992)
• Bridge Load Ratings for the National Bridge Inventory (10/30/2006)
• Funding for Bridge Inspection Equipment and Access Features (10/05/05)
• Technical Advisory T5140.21 Revisions to the National Bridge Inspection Standards (NBIS) (09/16/1988)

Information

• Bridge Inspector's Reference Manual (BIRM) (.pdf, 153 mb) 
• Federal-aid Program Overview: National Bridge Inspection Standards Video
• National Bridge Inventory (NBI)
• Questions and Answers on National Bridge Inspection Standards
• Recommended Framework for a Bridge Inspection QC/QA Program
• Underwater Bridge Inspection Manual (.pdf, 10 mb) 
• Underwater Bridge Repair, Rehabilitation, and Countermeasures Manual (.pdf, 7 mb)