We need a Dutch-style Delta plan to stem the tide of floods

With each new deluge the UK learns nothing, unlike the Netherlands, which has adapted to the changing nature of the threat

The Guardian, Henk van Klaveren, Sunday 27 December 2015

York city centre is covered by floodwater after the River Ouse bursts its
 banks. Photograph: Joe Giddens/PA

When more than 1,800 people died in the wake of the 1953 North Sea flood in the Netherlands, the national reaction was: never again. The resulting Delta programme to close off the south-western river delta from the sea was so bold that its name became synonymous with dealing with a crisis. If an issue needs a major response, you can be sure that a Dutch politician will call for a “Delta plan to tackle X”. It is time that the UK took some of that attitude and got a Delta plan to tackle flooding.

Flooding has become an almost annual event in the UK. We are waiting for the next storm and flash flood to hit, with another group – or even the same group – of people evacuated, all followed by the promise of some money for a bit of flood defence work. As a nation, we can no longer afford to accept that. Consider the personal misery for those affected, even in areas not traditionally flood-prone like Manchester and Leeds. Consider that the financial cost of these events will continue to rise – and not only for the government. Every home insurance policy now includes a £10.50 Flood Re levy to subsidise insurance for homes with a high risk of flooding.

With the climate changing and becoming more volatile, we can expect heavier rain and more severe storms. Water management systems in the UK, and in particular in England, are unable to deal with what lies ahead.

After almost every flood, journalists and policymakers go to the Netherlands to learn how they are adapting to climate change and what lessons there are for the UK. We see Dutch projects in the news, such as a neighbourhood with floating homes that forms part of a major national programme to create space for the rivers. But those lessons never seem to be taken on board. Come the next flood, off they all go to Holland again.

For the Dutch, water management goes to the core of their national identity. The country was forged in the battle against water. This common fight led to the pooling of resources and decision-making in regional water authorities – among the oldest democratic institutions in the world – which continue that work today. The national habit of consensus decision-making in tackling major issues became known internationally in the 90s as the “polder model”, echoing its water-based roots. No Dutch politician wants to be part of the generation that fails in the common endeavour against water, and no voter would accept someone caught sleeping on their watch.

The Netherlands has adapted to the changing nature of the threat. Today, the biggest danger is not the sea swallowing the land but the rain overwhelming it. The main focus no longer is building higher dykes and bigger dams, like they did after the 1953 flood. Instead, the Dutch have spent the past decade deepening and widening rivers, creating new side canals that provide extra capacity, and setting aside land as dedicated flood plains. This €2.3bn (£1.7bn) project is still ongoing. All this so that when the water does come, the swollen rivers can expand without flooding homes and causing misery.

In Britain, we need to start to realise and accept that flooding is becoming an equally existential issue. There can be no northern powerhouse or sustainable prosperity anywhere if it risks being swept away by the rain. That message is not always clear in Westminster, where the focus is on the quick fix today. The polder model feels far away from the much more combative nature of Westminster – and from Holyrood and Cardiff, too.

We need a Dutch-style national response in the UK, with the necessary funding. The British landscape demands it even more than the Dutch flat countryside. With heavy rainfall flowing down the hills into lower-lying areas, those places need investment in rivers and landscapes able to absorb that water, transport it away from homes quickly or temporarily store it on empty flood plains. We need to stop building in at-risk areas, setting those places aside as buffers to protect existing homes. When and wherever we build, we need to think about how we manage water in that area.

This will require some tough decisions and difficult public debates. The respective environment agencies in England, Scotland and Wales have much of the expertise, but need the political will and funding. A start would be a UK Delta plan. But first the prime minister and the first ministers of Scotland and Wales must truly resolve: “never again”.

The Eastern Scheldt storm surge barrier (Oosterscheldekering) in Vrouwenpolder,

The Netherlands (AFP Photo/Bas Czerwinski)

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Going Dutch to help conquer the rising seas

Yahoo – AFP, Nicolas Delaunay, 27 Oct 2015

The Eastern Scheldt storm surge barrier (Oosterscheldekering) in Vrouwenpolder,

The Netherlands (AFP Photo/Bas Czerwinski)

Zeeland (Netherlands) (AFP) - Had nature been left to take its course much of the Netherlands would be a muddy swamp and the tiny coastal nation would never have risen to be the eurozone's fifth largest economy.

More than half of the country's 17 million people live in low-lying at risk areas, but thanks to hard work, perseverance and a lot of technical savvy they snuggle safely behind an ingenious network of 17,500 kilometres (10,800 miles) of dykes, dunes and barrages.

After struggling against the seas for hundreds of years, the Netherlands prides itself on being the "safest delta" on the planet and now exports its expertise around the world.

As water levels rise thanks to climate change and turbulent weather patterns unleash fierce storms, Dutch know-how in protecting low-lying areas has turned the country into the leader in its field.

"It's thanks to our history," Infrastructure Minister Melanie Schultz van Haegen told AFP. "We have been battling for centuries to hold back the seas."

Just like the legend of the boy who stuck his finger in crumbling dyke, necessity has been the mother of invention.

As water levels rise thanks to climate change and turbulent weather patterns

 unleash fierce storms, Dutch know-how in protecting low-lying areas has turned

the country into the leader in its field (AFP Photo/Bas Czerwinski)

Dutch companies now account for some 40 percent of the global dredging business open to international competition.

"Water is not so much a threat, but an asset. It can bridge economy and ecology," said Henk Ovink, the country's special representative on water issues.

More than 70 percent of the country's gross domestic product is produced on land at risk of flooding. Amsterdam's sprawling Schiphol airport -- the fifth busiest in Europe -- should by rights be a playground for fish.

Floods trauma

The turning point for the Netherlands came in 1953 when devastating floods swept in from the North Sea killing 1,835 people and leaving 72,000 homeless in the southwest.

Traumatised and shocked, the Dutch decided the only way forward was to improve their sea defences.

"Now Holland's level of protection is 100 to a 1,000 times better than most other countries," said Bart Schultz, a researcher at the UNESCO-IHE Institute for Water Education based in Delft.

The Eastern Scheldt storm surge barrier is a gargantuan construction stretching an impressive nine kilometres (five miles) between the southern islands of Schouwen-Duiveland and Noord-Beveland.

Thanks to a series of massive sluice gates it can completely close off the mouth of the estuary, preventing the unpredictable North Sea from surging through.

But simpler solutions also work. A huge man-made sand bank, bigger than 200 football fields, was inaugurated in December 2011 just south of The Hague.

The giant Maeslant surge barrier guards the entrance to the largest

port in Europe, Rotterdam (AFP Photo/Kina Rob Doolaard)

Like a pregnant belly it juts out into the sea from the beach, and swept by the winds and tides protects the beautiful dunes behind from erosion.

According to the UN's Intergovernment Panel on Climate Change, the oceans rose some 19 centimetres (seven inches) from 1901 to 2010.

They predict sea levels will now rise from 26 to 82 centimetres by 2100 compared with the end of the 20th century.

Deltas at risk

And the world's burgeoning and resource-rich delta zones where some 10 percent of the world's population lives are at the greatest risk, according to the Delta Alliance organisation.

It's here that Dutch technology has proved so valuable. Some 2,500 Dutch firms work in the water industry, doing some 17 billion euros of business every year, said Lennart Silvis, director of the Netherlands Water Partnership.

After Hurricane Katrina ripped through New Orleans in August 2005, the Netherlands played a huge role in reconstructing the city's sea defences.

That led to an increased cooperation with the United States, and when Hurricane Sandy hit New York and Jersey in 2012, Dutch help was again called upon.

After struggling against the seas for hundreds of years, the Netherlands prides

itself on being the 'safest delta' on the planet (AFP Photo/Koen Suyk)

"There is often huge interest after a disaster. But we would like to see greater preventative work which will help protect people in the long term," said Schultz van Haegen.

In Southeast Asia, Dutch experts have worked to shore up defences from Jakarta to the Mekong delta.

"Obviously we need to protect against the water, but there are other aspects of urban planning such as purification and access to drinking water, or even how to build roads," said Silvis.

Learning to live with the water has also spurred creative thinking -- Dutch experts are researching how to farm with salt-water, or how to produce energy by mixing salt and fresh water.

From building floating platforms off the Philippines to restoring wetlands areas in Kenya and Uganda, it seems there are no limits.

And there's even a little room for some luxury, when it comes to mastering the seas.

Sand islands shaped into a palm-tree and a network of islands formed like a map of the world off Dubai are the work of the Dutch international dredging company Van Oord.

Netherlands, South Korea in Charge of Jakarta Sea Wall Study

Jakarta Globe, Dion Bisara, September 04, 2015

The Jakarta sea wall will create a huge reservoir in the north coast of Jakarta,
acting as a flood control system and a water source for the surrounding population.
(ID Photo/Zabur Karuru)

Jakarta. The Netherlands and South Korea have pledged a total of $19 million in grant funding to help Indonesia conduct a study for the second and third phase of its sea wall project off the coast of Jakarta.

South Korea is setting aside $9.5 million for research on undersea currents and soil structure for the project, dubbed National Capital Integrated Coastal Development (NCICD).

The Dutch, meanwhile, have allocated 8.5 million euros ($9.5 million) for a follow-up study, Indonesia's Public Works and Housing Ministry said in a statement released on Thursday.

Officials from the three countries signed a letter of intent for the joint study on Thursday.

The South Koreans are set to begin their part by the end of this month, said Lucky Eko Wuryanto, deputy for infrastructure at the Coordinating Ministry of Economic Affairs.

The study is expected to reach conclusion by 2017, before the government has to decide whether to continue the sea wall project.

The second and third phase of the  massive endeavor will create a huge reservoir in the north coast of Jakarta, acting as a flood control system and water source for the surrounding population.

The Indonesian government, with help from the Netherlands, started construction to strengthen existing retaining walls on the coast last October as part of the first phase of NCICD.

Related Article:

'Great wall of Jakarta' plan to combat floods

'Great Garuda' wall to save Jakarta from rising sea level

A plan to build a billion-dollar dam to stop Indonesia's capital Jakarta from sinking into the sea has been launched. The project will take 30 years to complete, and create housing and jobs for almost a million people.

Deutsche Welle, 3 Nov 2014

The Garuda is a powerful, mythical creature, and the emblem of the Republic of Indonesia. It originally comes from an Indian myth, in which the creature – half-man, half-eagle - steals an elixir from the gods that promises immortality. The Jakarta metropolis is now trying to ensure its own future, by building the "Great Garuda" – a 35-kilometer-long protective wall in the shape of its namesake. The wall is placed on the country's coastline a few kilometers out to sea, designed to protect Indonesia's capital from the rising sea level.

Sinking metropolis, rising sea

The situation for the bustling metropolis is alarming. Built on a former swamp, Jakarta is serviced by drains largely left over from the Dutch colonial area. There is virtually no functioning waste disposal system, and clean water is in constant demand. So much groundwater is pumped into the city that the soil level sinks by about seven centimeters per year – in some districts this doubles to 14 centimeters. Meanwhile, ongoing climate change is seeing sea levels rise around the world. "This combination means that in 10 to 15 years large parts of Indonesia will be underwater," says Victor Coenen, team leader with Dutch construction company Witteveen + Bos' Jakarta office, who is the main contractor on the construction of the wall. At least half a million people will be directly affected by the wall's construction.

 A graphic of the finished Garuda
dam project

The Garuda dam project will help provide clean drinking water for Jakarta's residents

Now, in a joint initiative between the Indonesian and Dutch governments, a rescue plan has been formulated – one that will radically change the entire city's coastline. Behind the gigantic protective wall several lagoons will be built, acting as catchments for the thirteen rivers that flow into the Java Sea, while hopefully also helping to stop the annual flooding of parts of the capital during the rainy season. "All these rivers are so dirty we thought we should try tackle this problem at the same time," Coenen told DW. So that the lagoons don't also become polluted, sewage and water treatment plants, as well as garbage disposal infrastructure, will be built throughout the city. In addition, the dam is equipped with large pumping stations, helping to provide drinking water for the city's residents.

Integrated into the cityscape

During the project's implementation, both governments will rely on the expertise of several Dutch construction companies who already have experience with similar projects along the Dutch coast – though not on a scale like this. "Various components of this plan have already been implemented elsewhere in the world," says Coenen, referring, for instance, to the 30 kilometer-long Afsluitdijk, which has separated the IJssel River from the North Sea in his homeland since the 1930s. "What has not been done," the engineer continued, "is to completely integrate such a mammoth dam into a cityscape. There we are definitely entering uncharted territory."

Furthermore, behind the dam, on several artificially- created islands, a whole new neighborhood will rise, with housing for around 300,000 people and 600,000 new jobs. For this to happen the current coastline will have to be extended seven kilometers out into the sea. "This housing is desperately needed for a rapidly expanding Jakarta," says Coenen. "At the same time, the wall will have to be integrated into the new coastline. The difficulty lies in running the wall through the city, so that's it not easily recognisable."

A mammoth task

The "Great Garuda" wall in Jakarta is truly a mammoth project. It will cost up to 40 million US-dollars to construct, and is estimated to take around 35 years to complete. "It will be one of the three largest dams ever built in the world," says Victor Coenen. But he is confident the purely technical side at least will not be too problematic. "Many construction companies can handle a project like this. They have already proven they can do it."

More difficult is the financing, and the management of the project, which the Indonesian government is looking after. "If you just build a dam, that's no problem. Just sign a contract with a building contractor, you pay, and he delivers," said Coenen. "But if you are essentially building an entire new city, then there are so many contractors that it can be almost impossible to keep all the finances under control" – especially in a country like Indonesia, where rampant corruption remains a major problem.

"Large projects always involve large risks," said Coenen. But Jakarta is running out of time, and the engineer believes in the success of the project, even if he will not be in office when it is completed. By 2030 the dam will be standing, "but only in the middle of the century," said Coenen, "will the entire project be completed." This means it could take another 40 years for Garuda to lay his protective wings around Indonesia's capital.

Related Article:

'Great wall of Jakarta' plan to combat floods

'Great wall of Jakarta' plan to combat floods

Yahoo – AFP, Sam Reeves, 15 Oct 2014

Children residing in the slum area play along a dyke as construction of the

Jakarta sea wall begins, October 9, 2014 (AFP/Photo By Romeo Gaca)

Jakarta has launched a multi-billion-dollar scheme to build a huge sea wall to combat flooding as the Indonesian capital sinks, but there is scepticism about its chances of success in a country with a history of corruption and failed megaprojects.

The 35-kilometre (22-mile) wall, across the Bay of Jakarta off the city's northern coast, is the centrepiece of a project that will cost up to $40 billion over three decades, and also includes reclaiming land for 17 new islands.

The whole project will form the shape of a Garuda, the mythical bird that is Indonesia's national symbol.

Children residing in the slum area play 

along a dyke as construction of the 

Jakarta sea wall begins, October 9, 

2014 (AFP/Photo By Romeo Gaca)

While the aim is to prevent floods, it is hoped up to one million people will live and work on the islands, and help take pressure off a crowded city notorious as one of the world's most uninviting urban sprawls.

Supporters of the project, which officially got under way last week and is run by the Indonesian government with help from Dutch experts, say it is the only long-term solution.

"It's a life-and-death situation," said Purba Robert M. Sianipar, a senior economics ministry official with a key role in the project, adding hundreds were at risk of losing their lives from severe flooding if action was not taken.

However, some wonder whether such an ambitious plan will ever be completed, given Indonesia's bad record on infrastructure projects, such as plan to build a monorail in Jakarta that was embroiled in a storm of corruption six years ago.

Chief Economics Minister Chairul Tanjung suggested as much at last week's launch event, saying disagreements with future governments could knock the project off schedule.

Others question the approach entirely, saying the project will not stop the city from sinking, while graft is also a major danger, with officials sometimes awarding tenders to unsuitable firms in exchange for large kickbacks.

Jakarta has long been hit by floods during the rainy season, when tropical downpours cause rivers to burst their banks and deluge inadequate drainage systems, forcing tens of thousands out of their homes.

Residents gather along a dyke in Jakarta

as construction of the Indonesian capital's

 sea wall begins, October 9, 2014 (AFP/

Photo By Romeo Gaca)

However in 2007, a new type of flood set alarm bells ringing.

Rivers could stop flowing

Slum neighbourhoods were inundated when a high tide surged over sea defences in northern Jakarta, something that had never happened before and which highlighted the severe land subsidence in many areas.

As Jakarta has rapidly grown to a population of about 10 million, increased water extraction for drinking has caused the ground to compact and parts of the city to sink, a problem seen in other coastal conurbations, such as Ho Chi Minh City and Bangkok.

Parts of coastal north Jakarta, which is built on soft clay, are sinking as fast as 14 centimetres (5.5 inches) a year, meaning they could be metres below sea level in a few decades, according to those behind the sea wall project.

"Basically we are pumping ourselves into the ground," said Victor Coenen, from Dutch consultants Witteveen and Bos, which devised the master plan for the project.

The subsidence also means the 13 rivers in Jakarta may sink below sea level and stop flowing, increasing the risk of inundations.

After the 2007 floods -- which forced hundreds of thousands out of their homes -- officials scrambled to come up with a plan.

It involves strengthening the current, low sea defences over the next few years to provide temporary protection for north Jakarta, home to more than four million people.

A wall of giant iron reinforcement pipes is installed during the construction

of the Jakarta sea wall, October 9, 2014 (AFP/Photo By Romeo Gaca)

Work will then begin on the main wall, which will sit six to eight kilometres (four to five miles) from the coast and will be seven metres (23 feet) above sea level.

Construction of the wall will be finished between 2025 and 2030, while development on the islands -- which will have a mix of high-end and low-cost housing -- could take another decade.

A huge reservoir will be created between the islands and sea wall, where water from downpours can be stored so it does not flood the city, and into which rivers will be able to flow freely.

Plans are also in progress to slow the land subsidence by providing piped water to Jakarta from other areas and stop extraction of ground water.

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Draft of the Master Plan for National Capital Integrated Coastal Development. 
(JG Screen Grab courtesy of the website of the Coordinating Ministry of
Economic Affairs)