Covers maintenance of substructure (abutments, piers, wing walls), common repair techniques (cement pressure grouting, epoxy grouting, guniting), and maintenance of RCC/PSC and steel superstructures. Also covers the formal inspection system — periodic inspection by P.Way/Works/Bridge Inspectors, the Numerical Rating System (NRS), Unique Rating Number, and Condition Rating Number.
Key System — Bridge Rating
- The Numerical Rating System (NRS) assigns each bridge a Unique Rating Number and Condition Rating Number to track its structural health over time.
- Loss of camber and cracks in steel girders are specific defects checked for during steel superstructure inspection.
Content Status
Draft note, grounded in real official syllabus text found via research but not yet cross-checked against the primary RBE PDF directly. Treat as study-aid only until verified.