Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 5
Articles | Volume 26, issue 5
https://doi.org/10.5194/nhess-26-2319-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Collection:
https://doi.org/10.5194/nhess-26-2319-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 5
Research article
 | 
20 May 2026
Research article |  | 20 May 2026

Culvert blockages in 2D-hydrodynamic flash flood modeling: quantifying the impact on flood dynamics and mitigation strategies

Leon Frederik De Vos, Karan Mahajan, Daniel Caviedes-Voullième, and Nils Rüther

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Short summary
In this study, we assess the impact of culvert blockages on flash flood dynamics. Applying the 2D Shallow Water Equations, we model multiple flash flood and blockage scenarios within a steep catchment in central Germany. The results emphasize the need for accurate culvert representation in hydrodynamic models and demonstrate how scenario-based blockage modeling can support the identification of critical infrastructure and the development of targeted mitigation measures.
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Water extremes: innovative approaches to managing floods and...
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