Preprints
https://doi.org/10.5194/nhess-2021-394
https://doi.org/10.5194/nhess-2021-394

  23 Dec 2021

23 Dec 2021

Review status: this preprint is currently under review for the journal NHESS.

Brief Communication: Critical Infrastructure impacts of the 2021 mid-July western European flood event

Elco Koks1,2, Kees Van Ginkel3,1, Margreet Van Marle3, and Anne Lemnitzer4 Elco Koks et al.
  • 1Institute for Environmental Studies, Vrije Universiteit Amsterdam, The Netherlands
  • 2Environmental Change Institute, University of Oxford, Oxford, United Kingdom
  • 3Deltares, Delft, The Netherlands
  • 4University of California, Irvine, United States of America

Abstract. Germany, Belgium and The Netherlands were hit by extreme precipitation and flooding in July 2021. This Brief Communication provides an overview of the impacts to large-scale critical infrastructure systems and how recovery has progressed during the first six months after the event. The results show that Germany and Belgium were particularly affected, with many infrastructure assets severely damaged or completely destroyed. Impacts range from completely destroyed bridges and sewage systems, to severely damaged schools and hospitals. We find that large-scale risk assessments, often focused on larger (river) flood events, do not find these local, but severe, impacts. This may be the result of limited availability of validation material. As such, this study will not only help to better understand how critical infrastructure can be affected by flooding, but can also be used as validation material for future flood risk assessments.

Elco Koks et al.

Status: open (until 06 Feb 2022)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on nhess-2021-394', Alexander Fekete, 04 Jan 2022 reply
  • CC1: 'Comment on nhess-2021-394', Ingo Knieps, 06 Jan 2022 reply
  • RC2: 'Comment on nhess-2021-394', Anonymous Referee #2, 11 Jan 2022 reply
  • CC2: 'Comment on nhess-2021-394', Michel Journée, 18 Jan 2022 reply

Elco Koks et al.

Elco Koks et al.

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Short summary
This study provides an overview of the impacts to critical infrastructure and how recovery has progressed during the first six months after the July 2021 flood event in Germany, Belgium and The Netherlands. The results show that Germany and Belgium were particularly affected, with many infrastructure assets severely damaged or completely destroyed. This study helps to better understand how infrastructure can be affected by flooding and can be used for validation purposes for future studies.
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