• What is water?
• Water use
• Water management
• Coastal protection
• Durable water management
• Example projects
• New water management in the Netherlands
• Organisations
• Normal Amsterdam Water Level

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Example projects

The Woolde in Hengelo

The Woolde is a water storage area next to a residential district in Hengelo, in the east of the Netherlands. It is a fine example of a durable method to deal with water within an urban area. The water is stored in pools and carried away slowly. Here, the water is of great importance to the environment and recreation.

Rain water seperation in Nijmegen

East of the Maas-Waal channel is a project working on the seperation of rainwater. Rainwater is absorbed by the ground instead of being drained into sewers. There are two advantages of this: the ground water reserve is continually refreshed and topped up, and the water is not drained away too fast. The latter may cause high water levels in nearby rivers. When sewer renovations are necessary, the maximum amount of rainwater which can infiltrate the ground is calculated. Besides drainpipes, permeable pipes are installed under the streets. Citizens were asked to drain rainwater from their roofs via a gutter into the streets.

Lappenvoort, Glimmermade and the Oosterland

The water storage in the Lappenvoort, Glimmermade and Oosterland polders is part of the Recovery Lower Reaches project of the Drenthe’s Aa, a project within the framework of nature development and recreation. The Old Aa is connected with the Drenth’s Aa. Both polders will be fitted with a new purpose, i.e. for water storage for emergency situations. In 1998, it became clear that the water management in the north of the Netherlands had to be adapted to fit new circumstances, in particular with regards to the climate changes in the near future. When water levels get too high, the polders can collect and store large quantities of water in a short period of time.

The Oost polder

With regards to the Oost polder near Anna Paulowna, three problems have arisen. Firstly, there is a lack of water storage capacity during wet durations, secondly, there is a lack of water during dry durations, and thirdly, the Amstel dike needs reinforcement. To solve the problems, the existing ditch along the Amstel dike will be replaced and widened to 100 metres. In front of the pumping-station a deep storage pool will be dug out, and the section of the ditch leading to the station will also be broadened. The total surface area which will be available for water storage will be enlarged to 2.5 hectares through this. In the winter, there is additional space to store extra water, and in the summer there will be extra water to top up any water shortages. The excavated earth will subsequently be used to reinforce the dike along the Amstel Lake. This new arrangement is favourable for both plants and animals. The shores will be arranged in an environment-friendly way and around the displaced waterway, trees, reeds and swamp vegetation will be planted. After all this work, the Oost polder can confidently face the rest of the 21st century. The water has been given more space in advance, rather than it taking up this space itself later on without warning.