In the Netherlands the water is always present, and the Dutch people has built their identity as they have worked with water to create new land and a society.
Amsterdam, the river by Amstel where they made a dam, is a good example of how urban life and dynamic waterways are connected together in a complex system. And this complexity is present in everything built. Dikes protect the land from the North sea and strong rivers. Canals distribute water with the pressure needed. Houses have to be built on sand layers 11 or 21 meters down and the building of the new Metro is a real challenge as the engineers have to solve the problem of stability in the ground when the ground water is disturbed.
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