Risk Assessment and Management of Dam Safety

Risk assessment and management of dam safety encompass the systematic processes of identifying potential failure modes, quantifying their likelihood and consequences, and applying measures to prevent, mitigate or respond to incidents. Core elements include hazard identification (natural and operational threats such as floods, seismic events or structural deterioration), vulnerability analysis of structural components and downstream communities, and probabilistic evaluation of failure scenarios. Modern practice integrates real-time monitoring, remote sensing and digital-twin models to track performance indicators, detect anomalies and forecast evolving risks under changing climatic and operational conditions. Management strategies span design optimisation, routine inspection, maintenance and emergency-action planning, underpinned by international regulatory frameworks that set minimum safety standards and promote best practice. Given the global proliferation of ageing infrastructure, and the influence of intensified precipitation and extreme weather, concerted investment in modern instrumentation, data-driven analytics and adaptive governance is essential to safeguard water, energy and food security.

Research from Nature Portfolio

Recent studies have revisited historical dam-failure records to reveal persistent “infant mortality” in new embankment dams alongside growing resilience in concrete structures. Statistical analyses indicate that older dams—particularly embankments between 15 m and 70 m in height built during the latter 20th century—remain prevalent in future failure statistics if maintenance and uprating are neglected. Moreover, failure rates of newly constructed dams are rising in low-income, monsoon-dominated regions, highlighting economic and climatic disparities that drive risk. Projections suggest tens of large dam failures worldwide in the coming decade unless monitoring and targeted resource allocation are improved. These insights inform prioritised inspection regimes and investment strategies to fortify infrastructure against evolving hazard profiles.

Risk Assessment and Management of Dam Safety publication trend

The graph below shows the total number of articles in risk assessment and management of dam safety across all publications each year (not limited to Nature Index journals).

Technical terms

Hazard: A natural or anthropogenic process (e.g. flood, earthquake) with potential to cause dam failure.

Vulnerability: The susceptibility of dam structures and downstream assets to damage from a given hazard.

Probabilistic risk assessment (PRA): A quantitative approach that estimates failure probability and consequence distributions to inform decision-making.

Embankment dam: A dam constructed from compacted earth or rockfill, typically susceptible to internal erosion and slope instability.

Remote sensing imagery: Satellite or aerial data used to monitor dam geometry, detect deformation and assess environmental changes.

Spillway capacity: The designed flow rate that a dam’s overflow channel can safely pass, critical for preventing overtopping failures.

References

1. Age, climate and economic disparities drive the current state of global dam safety. Nature Water (2025).
2. Farm dams and the need for integrated water storage safety, equity and land-use policy: Comparative case study evidence from Australia. Journal of Cleaner Production (2024).
3. Multi-feature supported dam height measurement method for large hydraulic projects using high resolution remote sensing imagery. International Journal of Applied Earth Observation and Geoinformation (2024).
4. Review article: Climate change impacts on dam safety. Natural Hazards and Earth System Science (2018).