This manual contains the following major chapter headings: 1. Introduction, 2. Bridge Files (Records), 3. Bridge Management Systems, 4. Inspection, 5. Material Testing, 6. Load Rating, 7. Fatigue Evaluation of Steel Bridges, 8. Nondestructive Load Testing, Appendix A. Illustrative Examples. The manual serves as a standard and provides uniformity in the procedures and policies for determining the physical condition, maintenance needs, and load capacity of the nation's highway bridges.