In Canada, about 45% of bridges reached their life expectancy and the overall budget for maintenance and rehabilitation only covers about 59% of the estimated required cost. It is likely that many of the bridges classified as “fair” will reach a poor condition before being upgraded. This represents an enormous financial burden that faces Canada in the near future. In addition, recent natural and man-made disasters in Canada and around the world have further highlighted the difficulty that affected communities faced to recover socially and economically from these unexpected shocks. Many researchers convey that floods can be considered one of the principal reasons for bridge failure in Canada and the rest of the world. Under these circumstances, this study aims to study economic losses due to floods in Manitoba. Historic records about flood economic consequences have been collected from the CatIQ platform. These costs per square kilometers have been quantified in Manitoba as well as in nearby areas prone to these events. The application of this approach can help decision-makers and code-writers to develop probabilistic risk-based models to quantify the risk of highway bridge failure due to floods for design and evaluation purposes.

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Analysis of Flood Economic Consequences for the Risk Assessment of Bridge Failures in Manitoba

  • Shadi Safa,
  • Graziano Fiorillo

摘要

In Canada, about 45% of bridges reached their life expectancy and the overall budget for maintenance and rehabilitation only covers about 59% of the estimated required cost. It is likely that many of the bridges classified as “fair” will reach a poor condition before being upgraded. This represents an enormous financial burden that faces Canada in the near future. In addition, recent natural and man-made disasters in Canada and around the world have further highlighted the difficulty that affected communities faced to recover socially and economically from these unexpected shocks. Many researchers convey that floods can be considered one of the principal reasons for bridge failure in Canada and the rest of the world. Under these circumstances, this study aims to study economic losses due to floods in Manitoba. Historic records about flood economic consequences have been collected from the CatIQ platform. These costs per square kilometers have been quantified in Manitoba as well as in nearby areas prone to these events. The application of this approach can help decision-makers and code-writers to develop probabilistic risk-based models to quantify the risk of highway bridge failure due to floods for design and evaluation purposes.