Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 10
Articles | Volume 26, issue 10
https://doi.org/10.5194/nhess-26-5339-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-5339-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 10
Research article
 | 
29 Oct 2026
Research article |  | 29 Oct 2026

Indirect costs of floods: a case study of highways road users

Manuel Contreras-Jara, Tomás Echaveguren, Eduardo Allen, Alondra Chamorro, and José Vargas-Baecheler

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Short summary
Floods disrupt roads and bridges, causing delays, higher travel costs and expensive repairs. However, user costs from slower traffic and detours are often ignored. This study integrates flood models, bridge vulnerability, and traffic analysis to estimate these costs. Applied to Chile's Aconcagua Bajo watershed, it considers floods of varying frequencies, road and bridge failures, travel times, and fuel expenses, highlighting the hidden economic burden of flood events.
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