Bridges are lifeline structures and their performance is critical during and after the earthquake. The RC Bridge decks,
supported on unanchored elastomeric pad bearings are free to move over substructure during an earthquake. Excessive deck
displacement causes unseating and sometimes complete collapse of the deck leading to closure of the bridge for long periods.
The problem worsens for irregular bridge with significant variations in the pier/pile heights. For that type of bridges base
isolation techniques are the best method to protect it from earthquake and for a partially damaged building retrofitting
techniques are best to protect further damages for working condition. We are here to discuss the rehabilitation assessment of
seismically damaged irregular bridge namely changappa bridges by isolation technique and retrofitting technique.
