Feb
04
2008

After years of keeping water out, Netherlands letting water in

The Netherlands has a long history of flooding – over half the country is below sea level – and during the North Sea flood of 1953, nearly 2,000 Dutch lost their lives in a flood after sea water breached several dikes and water poured into unsuspecting villages during the night of February 1, 1953. Even before this particular natural disaster, the Dutch had been dealing with the problems of living in a low-lying area, and in the 1950’s embarked on a massive civil-engineering project called Delta Works.

Delta Works is a network of dams, sluices, locks, dikes, and storm surge barriers that are set up to protect the Netherlands from future flooding. The work is incredibly vast, and was completed in 1997 when the Maeslantkering (the largest moving structure on Earth) was completed.

But now, the Netherlands faces another problem – global warming – and the associated risk of increased winter rain in Europe, according to the climate-change models. That will bring high water to the Meuse and Rhine rivers that flow into Holland. The strategy is now different. Instead of the historic approach of raising the heights of the dikes to contain the rivers, the Netherlands is going to lower some dikes to allow flooding in certain areas of the country to relieve pressure in others. So instead of keeping the water out, they are allowing the water, to a certain extent, go where it wants. The plan, called “Room for the River”, was featured in a recent NPR story. The story includes a cool feature that shows the impact of climate change on low-lying regions around the world.

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