“It is a Worldwide practice to carry out the Inventory and Conditions survey regularly, with focus on the structural safety of bridge structures catering to vehicular traffic to ensure that these bridges are structurally sound for vehicular traffic. As per norms, a newly constructed or renovated bridge should be inspected within 90 days of a bridge being open to traffic and after every 24 months, throughout the life of the structure. The results of these mandated inspections provide information on the structural safety of the bridges and assigns each bridge a specific sufficiency rating that speaks of the overall condition of each bridge.” said Mr Kapila.
“Similar Inventory and Condition process should also be carried out for pedestrian bridges, as the foundations of a good bridge maintenance programme is based on the availability of quality data on the bridge structures owned by a National, State or City agency, including complete and accurate information on the bridge structures and their individual elements. These structures need to be periodically inspected with 'Sufficiency' rating as per the requirement of Bridge Inventory Standards.” Added Mr Kapila
The sufficiency rating is a numerical rating between 0 and 100 given to each highway bridge. The value is based on the bridge’s structural adequacy and safety, essentially for public use, and its serviceability and functional obsolescence.