Central in this webinar are the Hondsbossche and Pettemer sea dunes. In 2004, the Directorate-General of Public Works and Water Management in the Netherlands (Rijkswaterstaat) declared that the dunes and sea dykes of H&P are not in line with the flood protection standards of the Netherlands.

TITLE

The Multiple Benefits of the Hondsbossche and Pettemer sea dunes, valued by the SAVi methodology.

SUMMARY

The International Association of Dredging Companies (IADC) and the International Institute for Sustainable Development (IISD) will organise a webinar to discuss the findings of the SAVi Assessment of the Hondsbossche and Pettemer (H&P) sea dunes. The assessment quantifies the ecosystem services and economic impacts of the new dune landscape under several flood scenarios and compares this nature-based infrastructure solution to a conventional dike reinforcement. The study finds that under all scenarios, the investment in the artificial sand dunes offers greater net benefits than the grey alternative of building a sheet pile wall.

FOR WHOM

This webinar is especially of interest for policymakers, infrastructure developers, investors and other stakeholders with an interest in green infrastructure. But also for both technical and non-technical professionals in dredging-related industries like consultants and advisors at port and harbour authorities, offshore companies and other organisations that execute dredging projects.

LEVEL

No prior knowledge is necessary.

MEET THE PRESENTERS

The following presenters will contribute to this webinar:

Erik van Eekelen

Manager Environmental Engineering Department at Van Oord & Project Manager / Board member of EcoShape

Yaron Daniel

Advisor Programme Management of the Dutch Water Board (Hoogheemraadschap Hollands  Noorderkwartier)

Matthew Gouett

Sustainable Finance Analyst at the International Institute for Sustainable Development

René Kolman

Secretary General of the International Association of Dredging Companies and moderator this webinar.

ABOUT THE HONDSBOSSCHE AND PETTEMER SEA DUNES

Central in this webinar are the Hondsbossche and Pettemer sea dunes. In 2004, the Directorate-General of Public Works and Water Management in the Netherlands (Rijkswaterstaat) declared that the dunes and sea dykes of H&P are not in line with the flood protection standards of the Netherlands. Therefore, a EUR 250 million project was undertaken to improve flood safety and spatial quality. This project followed the Building with Nature (BwN) design to comply with the sustainability aspects. The specifics of the design allow for a seabed erosion-free solution that also provides a shallow foreshore for leisure and an artificial dune landscape that can develop into a natural habitat (EcoShape, 2018).

Constructing new marine infrastructure or maintaining ports and waterways has both a positive and sometime a negative effect on the environment. That’s why sustainability throughout the dredging industry is key. And finding nature-based solutions is crucial. To become truly sustainable all impacts should be considered in project evaluations. The influence on biodiversity or recreation opportunities, for instance, are hardly taken into account in project evaluations. IADC believes in promoting inclusion of all externalities. The result of the SAVi assessment of the Hondsbossche and Pettemer sea dunes shows the benefits of nature-based solutions and the additional value that can be created.

The Hondsbossche and Pettemer sea dyke and sand dunes project is a perfect fit for the assessment study since Building with Nature projects tend to contain more objectives than traditional projects. For example, traditionally, it is common to focus on flood protection and cost efficiency only, while the H&P sea dyke focuses on flood protection, nature development and improvement of spatial quality. Therefore, the project involved longer temporal and larger spatial scales than those of traditional maritime infrastructure projects. To evaluate the created value through all three objectives, a holistic methodology like SAVi is essential.

 

Download report

Click here to download the report. Read more.

Download