Needs

• To Sustain bridge for remaining life of BOT project
• Enabling smooth flow of traffic
• To Reduce Total Cost of Ownership (by reducing overall maintenance)
• To Avoid Mishap
• To Reduce Closure of Traffic movement

Factors

• Lapse during Construction of Bridge
• Wear & Tear .i.e. effect of Aging
• Unattended minor repair i.e. Poor Maintenance
• Damages due to wrong selection of type of repair/rehabilitation method
• Faulty Design
• Damages due to excess loading
• Damage due to Accident