Print Email Facebook Twitter Making room for rivers Title Making room for rivers: Quantification of benefits from a flood risk perspective Author Asselman, Nathalie E.M. (Deltares) Klijn, F. (TU Delft Policy Analysis) Date 2016 Abstract Since 1996, the Netherlands has adopted a flood risk management policy based on making more room for the rivers. Currently, the focus in flood risk management is being adapted again, in view of increasing societal vulnerability and foreseeable effects of climate change. In this context, the choice between making more room for the river and/or strengthening embankments is again of major concern. This calls for further quantification of the effectiveness, costs and benefits of all possible measures. Making room for rivers was originally advocated by referring to a reduction of the probability of failure of the embankments and a reduction of the consequences in case of breaching. These arguments still apply, but the effect of making more room for rivers on flood risk has never been properly quantified yet. In this paper we identify three potential risk reducing effects, and quantify their effect for along the Rhine and Meuse Rivers in the Netherlands. We show that lowering the flood levels means smaller flood probabilities, that larger floodplain surface area significantly influences the relationship between discharge and flood level, and that lower flood levels in the river translate into smaller flooding depths and/or flood extent, and thus reduce the consequences of flooding. To reference this document use: http://resolver.tudelft.nl/uuid:e7b2203f-f6d0-4541-be9a-8a2acf489d15 DOI https://doi.org/10.1051/e3sconf/20160712001 Source E3S Web of Conferences, 7 Event 3rd European Conference on Flood Risk Management, FLOODrisk 2016, 2016-10-17 → 2016-10-21, Lyon Convention Centre, Lyon, France Part of collection Institutional Repository Document type journal article Rights © 2016 Nathalie E.M. Asselman, F. Klijn Files PDF e3sconf_flood2016_12001.pdf 3.38 MB Close viewer /islandora/object/uuid:e7b2203f-f6d0-4541-be9a-8a2acf489d15/datastream/OBJ/view