Home › 1-PDH Bridge Catalog › BR-F02
1 PDH · about 60 minutes · Course no. BR-F02 · Instructor: Michael Craig, PE
Michael Craig, PE is Senior Vice President and Southeast Director at Strinteg Corporation, leading bridge inspection and structural engineering across eight states and Puerto Rico. In 27+ years he has inspected over 4,000 structures and completed 3,000+ load ratings and 160+ load tests. He has managed repair and preservation design for complex bridges, including cable-stayed bridges. He holds PE licenses in twelve states, DC and Puerto Rico, SPRAT Level 1, and FAA Part 107 credentials.
The 2022 National Bridge Inspection Standards replaced the familiar term fracture critical member with nonredundant steel tension member (NSTM), and defined three kinds of redundancy that decide whether a steel tension member needs hands-on NSTM inspection. This course explains the definitions in 23 CFR 650.305, the NSTM inspection intervals and extended-interval criteria in 650.311(c), the procedures and FHWA approval path in 650.313(f) and (g), the qualification of NSTM team leaders in 650.309(c), and how NSTMs enter the critical findings rules of 650.313(q). It also covers FHWA's May 9, 2022 guidance memorandum on demonstrating system or internal redundancy, and the design-side fracture control concepts (Charpy toughness, the AASHTO/AWS D1.5 fracture control plan, and constraint-induced fracture) as summarized in the NSBA/AISC Steel Bridge Design Handbook and FHWA's fatigue repair manual. Regulatory text is quoted from the eCFR as published; confirm the current version and your agency's FHWA-approved procedures before applying it.