Minister Schultz van Haegen visits Koopmanspolder
Published: 9 December 2014
The Minister turned on the low-energy water link between the IJsselmeer and the Koopmanspolder, which consists of a windmill and a fish-friendly outlet through which water and fish poured from the IJsselmeer into the polder.
New nature and testing ground for water management
The polder was restructured in 2012 as a nature area and a testing ground for water management. Over the next three years, experiments will be conducted with water-level management to determine the impact on the safety of the dike and the land behind it, water quantities, water quality, nature and the living environment. Deltares will play a central role in monitoring and evaluation.
Demonstration of effects in practice is convincing
The Koopmanspolder is the first-ever application of the ‘inland shore’ concept, which was co-developed by Deltares. An inland shore is an area to the landside of a dike that is linked to the main water system and where there is room for additional water storage using changes in water level and reservoir formation. Combining functions intelligently allows the storage of water to be combined with social and economic objectives. Remco van Ek, a senior expert and consultant with Deltares: ‘The Koopmanspolder is an extremely fascinating testing ground. Even though we know a lot about possible effects, it’s only really convincing when you can actually demonstrate those effects in practice.’
The Koopmanspolder is a joint project of the Provincial Authority of North Holland, the Hollands Noorderkwartier water authority, Rijkswaterstaat, Deltares and the municipal authority of Medemblik.