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What We Can Learn from 1,000 Years of Dutch Flood Management

cunniff-shannonI looked out the window at the North Sea as my flight began its descent toward Amsterdam. Two things struck me immediately: First, the sheer number of container vessels approaching and leaving the Port of Rotterdam.

Second, the deep fields of undeveloped dunes protecting the coastline. Dunes provide flood protection for 50 percent of the Dutch coast – including one of the busiest ports in the world.

I had already learned something before my plane touched ground. I then spent the next 10 days in the Netherlands, meeting with water districts, academic institutions, research foundations and staff at the Rijkswaterstaat – the Netherlands equivalent of the United States Army Corps of Engineers.

I was looking for lessons to take back to our work on natural infrastructure and the restoration of the vanishing Mississippi River Delta.

One-half of the Netherlands is flood-prone and about one-quarter is below sea level. And yet, more than 16 million people live well in an area the size of Connecticut, and with a per capita Gross Domestic Product similar to that of the United States.

What’s more, the Netherlands is second only to the United States in agricultural exports.

Water management is in the DNA of the Netherlands. We can learn from the Dutch experience and expertise how to live well with water.

Katrina and Sandy Showed We Must Do Better

After seeing the destruction caused by Hurricane Katrina 10 years ago, and more recently by Super Storm Sandy, we know we can do a better job reducing risks to people and the economy.

Like the Dutch, we also know we can do more to improve the resiliency of coastal habitats that provide important ecosystem services: risk reduction, shell fish and fisheries production, water quality improvement, recreation.

The Netherlands doesn’t fool around with floods. After a devastating North Sea flood in the 1953 resulted in 1,800 deaths, the nation adopted a “never again” attitude.

Today, a national system of dikes and surge barriers provide a level of protection unheard of in the US – protection against an event with a probability of occurring once every 10,000 years. That’s not a typo.

By comparison, New Orleans’ upgraded system of protective levees and surge barriers is supposed to guard against storm events likely to happen every 500 years.

1,100 Years of Water Engineering

The Netherlands’ landscape and economy is built on 1,100 years of water engineering. Canals draining, collecting and moving water around are everywhere – 18 percent of the nation today is considered water.

Management of the water in these canals, together with large dikes, maintain the omnipresent system of polders – small units of low-lying land reclaimed from the sea and rivers that exist below the natural water table. There is little evidence of the original delta from which the Netherlands grew and it’s hard to see the North Sea unless you are standing atop a flood control structure.

But where there aren’t high dikes walling off the North Sea, you will find lovely expanses of protected and restored vegetated dunes, natural infrastructure that provide protection for communities, habitat for birds and are valued for their contributions to ensuring a high quality, reliable water supply.

These ecosystems are providing multiple ecological and economic benefits.

In areas vulnerable to sea level rise and storm surges, the US can learn from the Dutch.

We can create communities on systems of canals. We can build infrastructure to protect critical economic assets and large, densely populated areas from storm surges. And we can enhance and protect our nature defenses – barrier islands, dunes and wetlands – to better withstand storms.

It takes collaboration, willpower, resources and time. And like the Dutch, we’d be better off if we made the investment.

Shannon Cunniff is deputy director of the Water Program for the Environmental Defense Fund. She focuses on improving strategic and tactical effectiveness of EDF’s Water Program team. She is also heading development of EDF’s natural infrastructure program. Prior to EDF, she worked at the Department of Defense as the executive director for chemical and material risk management, where she guided development and implementation of DoD’s strategic sustainability performance plan. Shannon’s government service has included senior positions in which she was responsible for a variety of water resources, environmental and science policy issues.

This article was republished with permission from the Environmental Defense Fund.

Shannon Cunniff
Shannon Cunniff is deputy director of the Water Program for the Environmental Defense Fund. She focuses on improving strategic and tactical effectiveness of EDF's Water Program team. She is also heading development of EDF's natural infrastructure program. Prior to EDF, she worked at the Department of Defense as the executive director for chemical and material risk management, where she guided development and implementation of DoD’s strategic sustainability performance plan. Shannon’s government service has included senior positions in which she was responsible for a variety of water resources, environmental and science policy issues.
 
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