Resilience-based Bridge Asset Management

Bridges are typical vulnerable links within transportation networks and are susceptible to damages induced by natural or man-made hazards. Their closures can have repercussions on economies, human health and community functionality; hence their resilience is of vital importance. This paper presents a practical framework for assessing the resilience of bridges which could subsequently be used to inform the prioritisation of resources and strategic investments in bridges and surrounding regions. This framework is built around four dimensions of infrastructure and network, place and environment, organization and governance, and economy and community. Each dimension has associated which can be assigned a score based on the best-case and worst-case scenario descriptors. The application of this holistic framework is demonstrated through the original I-35W bridge. The proposed framework is easy to use by bridge practitioners and planners and is a step towards resilience-based bridge asset management.