Following the 2018 collapse of the Morandi Bridge in Genoa, Italy, a national program was launched to identify factors that may compromise the safety and functionality of bridges. The Ministry of Infrastructure issued Guidelines for the control and supervision of road bridges and viaducts, promoting an interdisciplinary, multi-level risk assessment that covers structural, seismic, hydraulic and landslide hazards, from preliminary screening to detailed evaluation. Since 2021, universities and research institutes grouped in the Consorzio Fabre have advanced research on landslide–bridge interaction. In this context, the MARIE project (Methodological Approaches for RIsk assessment in the framework of landslide-bridge IntEraction) unfolds through several phases, starting from case-study analyses to capture the variety of interactions between landslides and bridges. The knowledge produced supports a more effective application of the Guidelines, including proposed operating instructions to resolve interpretative ambiguities and to indicate priorities for future updates. The Guidelines distinguish levels of knowledge, from initial Levels 1–2 to deeper stages that include “Special inspections” and Level 4, defined as complete knowledge. The project clarifies the purpose, scope and triggering conditions of Special inspections for landslide risk and outlines their expected content. It also proposes survey and testing campaigns aimed at achieving Level 4. Activities are conducted with public authorities such as ANSFISA “Italian National Agency for the Safety of Railways and Road and Highway Infrastructure” and with infrastructure managers. The goal is to improve the safety, resilience and service life of critical assets under evolving environmental pressures by refining guideline interpretation and deployment, and by implementing innovative risk-management procedures and effective monitoring strategies. This multidisciplinary, integrated effort addresses key gaps in current practice.
Landslide-Bridge interaction risk assessment: MARIE research project
Brezzi, Lorenzo;Gabrieli, Fabio;Simonini, Paolo
2026
Abstract
Following the 2018 collapse of the Morandi Bridge in Genoa, Italy, a national program was launched to identify factors that may compromise the safety and functionality of bridges. The Ministry of Infrastructure issued Guidelines for the control and supervision of road bridges and viaducts, promoting an interdisciplinary, multi-level risk assessment that covers structural, seismic, hydraulic and landslide hazards, from preliminary screening to detailed evaluation. Since 2021, universities and research institutes grouped in the Consorzio Fabre have advanced research on landslide–bridge interaction. In this context, the MARIE project (Methodological Approaches for RIsk assessment in the framework of landslide-bridge IntEraction) unfolds through several phases, starting from case-study analyses to capture the variety of interactions between landslides and bridges. The knowledge produced supports a more effective application of the Guidelines, including proposed operating instructions to resolve interpretative ambiguities and to indicate priorities for future updates. The Guidelines distinguish levels of knowledge, from initial Levels 1–2 to deeper stages that include “Special inspections” and Level 4, defined as complete knowledge. The project clarifies the purpose, scope and triggering conditions of Special inspections for landslide risk and outlines their expected content. It also proposes survey and testing campaigns aimed at achieving Level 4. Activities are conducted with public authorities such as ANSFISA “Italian National Agency for the Safety of Railways and Road and Highway Infrastructure” and with infrastructure managers. The goal is to improve the safety, resilience and service life of critical assets under evolving environmental pressures by refining guideline interpretation and deployment, and by implementing innovative risk-management procedures and effective monitoring strategies. This multidisciplinary, integrated effort addresses key gaps in current practice.
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