Print Email Facebook Twitter Economic optimization of coastal flood defence systems including storm surge barrier closure reliability Title Economic optimization of coastal flood defence systems including storm surge barrier closure reliability Author Mooyaart, L.F. (TU Delft Hydraulic Structures and Flood Risk; Rijkswaterstaat) Bakker, A.M.R. (TU Delft Hydraulic Structures and Flood Risk; Rijkswaterstaat) van den Bogaard, Johan A. (Rijkswaterstaat) Rijcken, T. (TU Delft Hydraulic Structures and Flood Risk) Jonkman, Sebastiaan N. (TU Delft Hydraulic Structures and Flood Risk; Texas A&M University at Galveston) Date 2023 Abstract Storm surge barriers are large movable hydraulic structures which close during a storm surge to prevent coastal floods. In the regions they protect, a failure to close the barrier is often the most likely cause for a catastrophic flood. Nevertheless, flood risk assessments usually only focus on raising flood defences behind the barrier. Despite its importance, there is no general method to assess the costs and benefits of improving the closure reliability. This paper presents a model that optimises investments considering both closure reliability improvements and raising flood defences behind the barrier, using the region protected by the Maeslant barrier as a case. We substantiate that constructing the Maeslant barrier was an optimal economic decision. Moreover, we demonstrate large investments such as a redundant barrier already being economically sound with a few decimetres of sea level rise. Based on our experience with this case study, we expect the model is useful in finding strategies to adapt to rising sea levels and other developments that cause coastal flood risk to rise worldwide. Subject economic optimizationflood defenceflood riskreliabilitystorm surge barrier To reference this document use: http://resolver.tudelft.nl/uuid:03720c24-b1d2-4d2e-8130-8e9208fe3ad1 DOI https://doi.org/10.1111/jfr3.12904 ISSN 1753-318X Source Journal of Flood Risk Management, 16 (3) Part of collection Institutional Repository Document type journal article Rights © 2023 L.F. Mooyaart, A.M.R. Bakker, Johan A. van den Bogaard, T. Rijcken, Sebastiaan N. Jonkman Files PDF J_Flood_Risk_Management_2 ... _surge.pdf 3.62 MB Close viewer /islandora/object/uuid:03720c24-b1d2-4d2e-8130-8e9208fe3ad1/datastream/OBJ/view