RELIABILITY ASSESSMENT OF A COASTAL DIKE AND DUNE SYSTEM  AT THE SOUTH OF FALSTER, DENMARK

Andreas Kortenhaus; David Schurenkamp; Thorsten Piontkowitz; Hocine Oumeraci

doi:10.9753/icce.v33.management.59

No. 33 (2012), Coastal Management, Environment, and Risk

No. 33 (2012)

RELIABILITY ASSESSMENT OF A COASTAL DIKE AND DUNE SYSTEM AT THE SOUTH OF FALSTER, DENMARK

Coastal Management, Environment, and Risk

https://doi.org/10.9753/icce.v33.management.59

Published 2012-12-14

Andreas Kortenhaus
David Schurenkamp
Thorsten Piontkowitz
Hocine Oumeraci

Andreas Kortenhaus

David Schurenkamp

Thorsten Piontkowitz

Hocine Oumeraci

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Keywords

sea dike
dune
reliability assessment
safety of flood defences
wave overtopping
dune erosion

How to Cite

Kortenhaus, A., Schurenkamp, D., Piontkowitz, T., & Oumeraci, H. (2012). RELIABILITY ASSESSMENT OF A COASTAL DIKE AND DUNE SYSTEM AT THE SOUTH OF FALSTER, DENMARK. Coastal Engineering Proceedings, 1(33), management.59. https://doi.org/10.9753/icce.v33.management.59

Abstract

The 'Falster dike' is a system of a coastal vegetated dunes with a grass-covered sand dike protecting a low-lying area of about 7,000 summer houses, many of which being inhabited during winter, and therefore in danger of any storm surge induced flooding. The paper discusses (i) the assessment and uncertainties of relevant data such as bathymetry, topography, wind and wave data, water levels; (ii) deterministic calculations of wave run-up and overtopping of the dike without dunes; (iii) the calculations of dune erosion; and (iv) a reliability assessment of a dune and dike system. Results suggest that the dunes in front of the dikes lead to a significantly increased safety of the flood defences and will therefore withstand present and future conditions, including climate change scenarios.

https://doi.org/10.9753/icce.v33.management.59

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