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Evolution of a large coastal nourishment at Knokke: final report Montreuil, A.-L.; Dan, S.; Houthuys, R.; Verwaest, T. (2025). Evolution of a large coastal nourishment at Knokke: final report. Version 4.0. FH reports, 19_118_5. Flanders Hydraulics: Antwerp. VI, 62 pp. https://dx.doi.org/10.48607/369 Deel van: FH reports. Flanders Hydraulics: Antwerp. , meer

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Beschikbaar in	Auteurs
Waterbouwkundig Laboratorium: Open Repository 418634 [ OWA ]
Documenttype: Projectrapport

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Trefwoorden

Coastal processes Coastal protection Hydraulics and sediment > Morphology Hydraulics and sediment > Sediment

Author keywords

Sand budget

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Project	Top | Auteurs
Evolution of a large nourishment at Knokke coastal area

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Contactgegevens

Opdrachtgever: Vlaamse overheid; Beleidsdomein Mobiliteit en Openbare Werken; Vlaams Ministerie van Mobiliteit en Openbare Werken; Agentschap voor Maritieme Dienstverlening en Kust; Afdeling Kust, meer

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Auteurs		Top
Montreuil, A.-L., meer Dan, S., meer Houthuys, R. Verwaest, T., meer

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Abstract

Beach erosion occurs along a large part of the Belgian coast but is often more intense at Knokke coastal zone. Artificial nourishment of the active beach system is one of the most applied and successful measures to prevent and to cope with erosion. After repeated beach nourishments over the past decades, a major scheme is now being implemented: a combined large beach and nearshore nourishment of a total of 3.4 million m3 of sand for the Knokke area in the period 2020 – 2024. The aim of this study is to understand the hydrodynamics and morphodynamics of the Knokke area and to evaluate the effect of the beach and nearshore nourishments. This 5th year and final report focuses on coastal morphological changes along the east Belgian coast from Zeebrugge to east of the Zwin between 2018 and 2024. The results clearly indicate the significant effect of the nourishments on the beach and shoreface morphology as well as the spatial spreading of sand over time driven by tidal and wave currents. The continued topo-bathymetric surveys in the coming years will allow to monitor the further evolution of the large nearshore nourishment.

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