Bridge safety inspection guidance
Manuals
- MnDOT Bridge and Structure Inspection Program Manual (PDF)
- Bridge Inspection Field Manual - 2025 (PDF)
- National Bridge Inspection Standards - 2022 (PDF)
- FHWA Tunnel Operations, Maintenance, Inspection, and Evaluation Manual - July 2015 (PDF)
- FHWA Specifications for the National Tunnel Inventory - July 2015 (PDF)
- FHWA Bridge Inspector's Reference Manual - 2023
- FHWA Culvert Inspection Manual - 1986 (PDF)
Timber bridge inspection and maintenance
- Advanced timber inspection equipment online request form
- USFS Timber Bridge Manual - 1992
- Minnesota Advanced Timber Bridge Inspection Manual & Supplement – 2025 (PDF)
- Minnesota Timber Bridge Repair Manual - 2015
- 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)
Forms
Training and certification
- MnDOT bridge safety inspection certification 38933316 (PDF)
- Field proficiency test application form (PDF)
- Bridge Safety Inspection Refresher Training
- MnDOT bridge safety inspection appointment form for program administrators
- Upcoming training opportunities
- Update contact information – Team Leaders and Program Administrators
2024 Bridge Safety Refresher Seminar presentations
- 2024 Bridge Inspection Refresher Handout
- 2023 NBIS Compliance Reviews
- BSIPM Updates (2024 & 2025)
- SNBI Data Collection for Culverts
- 2023 Critical Findings and Damage Reports
- Concrete Structures with Integral Deck and Superstructure
- Uncoated Weathering Steel