What are the NBIS Requirements for NSTM bridges?

• A. ID NSTM locations, Hands on Inspection, Inspect within 12mo of opening to traffic
• B. Inspect within 6 months, Track changes, Archive data
• C. Use digital data; Schedule quarterly; Train staff
• D. Prepare reports; Sign off; Record-keeping

Answer: (A)

NBIS requirements for NSTM bridges emphasize establishing a baseline by identifying all NSTM locations, conducting a hands-on, on-site inspection, and completing the initial inspection within 12 months of opening to traffic. This combination ensures the exact scope is known, a qualified inspector evaluates the physical condition of the structure, and a baseline is captured soon after the bridge begins carrying traffic, providing a reference for all future NBIS inspections. While other NBIS activities like data tracking, digital records, training, or reporting are important parts of the program, they do not replace the essential three steps of locating the bridges, performing a physical inspection, and meeting the 12-month initial inspection window.