Bridge inspection
Inspection guidance
Manuals
- MnDOT Bridge and Structure Inspection Program Manual - (PDF)
- MnDOT Bridge Inspection Field Manual (PDF 22.4 MB)
- FHWA Tunnel Operations, Maintenance, Inspection, and Evaluation Manual - July 2015 (PDF 15 MB)
- FHWA Specifications for the National Tunnel Inventory - July 2015 (PDF)
- FHWA Culvert Inspection Manual - 1986 (PDF 13 MB)
- FHWA Recording and Coding Guide for the Structure Inventory and Appraisal of the Nations Bridges - 1995 (PDF)
- FHWA Bridge Inspector's Reference Manual - 2012
- National Bridge Inspection Standards - 2022 (PDF)
Timber bridge inspection and maintenance
- Advanced timber inspection equipment online request form
- USFS Timber Bridge Manual - 1992
- Minnesota Advanced Timber Bridge Inspection Manual - 2014 (PDF 8 MB)
- Minnesota Timber Bridge Repair Manual - 2015 (PDF 5 MB)
- Cost effective repairs of timber bridges video (Youtube)
- Timber bridge inspection: Stress wave timer demonstration video (Youtube)
- Timber bridge inspection: Resistance microdrilling demonstration video (Youtube)
- Timber research project summary (PDF 9 MB)