Bridges form critical links between communities and allow the movement of life-saving goods and services in emergency situations.With global climate change,the intensity and frequency of severe weather events are increasing,with a heightened potential for emergencies.Past experience shows that bridges are most vulnerable to extreme weather events.These severe weather events are coming at a time when there is increasing development and populations along many susceptible costs.It is therefore essential that strategies for mitigating the effects of severe weather events on bridges are discovered,both for long-term economy,but more importantly for short-term disaster relief operations.Infrastructure resilience can be improved by addressing these properties (Bruneau et al (2003)):1.Reduce failure probabilities; brought about by more resistant systems with increased capacity.