April 26, 2005

Protection against flooding: Cost-benefit analysis for Space for the River, Part 1

Vele rendabele veiligheidsmaatregelen in rivierengebied mogelijk

Press release
Op dit moment is de beveiliging tegen overstromen in het rivierengebied lager dan uit maatschappelijk-economisch oogpunt optimaal lijkt. Er zijn dan ook vele maatregelen tegen overstromen mogelijk waarvan de baten, in de vorm van vermindering van verwachte schade, de investeringskosten verre overtreffen.

We are sorry, unfortunately there is no English translation of this page.


Carel Eijgenraam
Dick Morks

The method has been applied to 22 dike rings along the rivers. An important outcome is that the current safety norms in the Act on the Water defences turn out to be not optimal from an economic point of view. For sixteen dike rings, the optimal safety level is higher than their present legal norm, for nine of them even more than twice. This is especially true for the two dike rings in the province of Utrecht: Kromme Rijn and Gelderse Vallei. On the other hand, the dike ring of Biesbosch (Noordwaard) should no longer be a well-protected dike ring. The outcomes support a 'robust' investment strategy that takes future changes fully into account.

This publication is in Dutch.


Carel Eijgenraam

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