{"id":3422,"date":"2020-06-02T11:03:37","date_gmt":"2020-06-02T09:03:37","guid":{"rendered":"https:\/\/www.ecoshape.org\/en\/projects\/sand-nourishment-hondsbossche-dunes-nl\/"},"modified":"2021-02-22T10:19:21","modified_gmt":"2021-02-22T09:19:21","slug":"sand-nourishment-hondsbossche-dunes-nl","status":"publish","type":"project","link":"https:\/\/www.ecoshape.org\/en\/cases\/sand-nourishment-hondsbossche-dunes-nl\/","title":{"rendered":"Sand nourishment – Hondsbossche Dunes"},"content":{"rendered":"\n

The Hondsbossche and Pettemer sea dike no longer met current safety standards. Therefore the dike was reinforced in 2015 with a soft, natural barrier of 30 million cubic metres of sand on the seaside of the dike. It was renamed ‘Hondsbossche Dunes’. The construction presented the unique opportunity to study the development of dunes and nature following a large sand nourishment.<\/p>\n\n\n\n

Location<\/strong>: Coastline between Camperduin and Petten (NL)
Date<\/strong>: 2014-2015 (construction), 2015-2018 (monitoring and innovation research project)
Involved parties<\/strong>: Waterboard Hollands Noorderkwartier, Rijkswaterstaat, Ecoshape (HKV, Witteveen en Bos, WUR, Arcadis and Deltares)
Technology Readiness Level:  <\/strong>9 \u2013 actual system proven in operational environment
Environment:<\/strong> Sandy coasts
Keywords<\/strong>: Constructed dune area, dune lake, sand nourishment, innovation research project, habitat development, sand transport. <\/p>\n\n\n

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Building with Nature design<\/div>\n\n
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Using a soft, natural barrier of sand dunes to protect the hinterland from flooding. Sand nourishment techniques are used to construct a new dune landscape that also serves natural values and recreation.<\/p>\n <\/div>\n <\/div>\n

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Traditional design<\/div>\n
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The traditional solution to an eroding coast is a basalt dike, possibly with groynes. Although the dike does provide some ecological benefits (e.g. food provision for birds), the design leads to increased erosion of the sea bed just in front of the dike. As a result, frequent maintenance is needed to meet the set safety standards.<\/p>\n <\/div>\n <\/div>\n\n<\/div>\n\n