National Bridge Inventory (NBI)
- NBI Regulations, Memos, and Documents
- Tables of Frequently Requested NBI Information
- Recording and Coding Guide for the Structure Inventory and Appraisal of the Nations Bridges
- PDF (0.8 mb)
- DOC (2.2 mb)
- Errata Sheet for Coding Guide 06/2011 (.pdf, 0.2 mb)
- FIPS Codes
- NBI Submittal File Check - Check does not validate county codes