Bridge safety is not for granted – A novel approach to bridge management

• Published in: Engineering structures 2019-10, Vol.196, p.109193, Article 109193
• Main Author: Pregnolato, M.
• Format: Article
• Language: English
• Subjects: Bridge failure; Communities; Data collection; Disruption; Emergency medical services; Flooding; Hazards; Hydrologic data; Logistics; Risk assessment; Risk management; Taxonomy; Transportation systems; Water supply; Water utilities
• ISSN: 0141-0296; 1873-7323
• DOI: 10.1016/j.engstruct.2019.05.035

•Bridges have a critical role in urban environments, and they should be safe and efficient.•Bridges are subjected to aging, an increasing demand and natural hazards.•Most of the countries are not able to identify bridges at higher risk of failure.•A preliminary protocolled taxonomy for data collection of bridges is advanced.•The implication of a national bridge inventory in the UK is illustrated.•The engagement of national authorities for developing a roadmap of policies is recommended. Bridges are crucial points of connection in the transport system, underpinning economic vitality, social well-being and logistics of modern communities. Bridges have also strategic relevance, since they support access to emergency services (e.g. hospitals) and utilities (e.g. water supplies). Bridges are mostly exposed to natural hazards, in particular riverine bridges to flooding, and disruption could lead to widespread negative effects. Therefore, protecting bridges enhances the resilience of cities and communities. Currently, most of the countries are not able to identify bridges at higher risk of failure, due to the unavailability of high-quality data, the mix ownership of the assets or the lack of a risk-based assessment. This paper introduces a risk-based approach to bridge management, alongside the gaps of current methodologies. Then, it presents a preliminary protocolled taxonomy for data collection of riverine bridges in flood-prone areas, while illustrating the implication of a national bridge inventory in the UK. This paper advocates the engagement of national authorities for developing a roadmap of policies leading to a unified bridge database functional for strategic risk assessment.