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North Sea flood of 1953

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The North Sea flood of 1953 and the associated storm combined to create a major natural disaster which affected the coastlines of the Netherlands and England on the night of 31 January – 1 February 1953. Belgium, Denmark and France were also affected by flooding and storm damage.

A combination of a high spring tide and a severe European windstorm caused a storm tide. In combination with a tidal surge of the North Sea the water level locally exceeded 5.6 metres above mean sea level. The flood and waves overwhelmed sea defences and caused extensive flooding.

Officially, 1,835 people were killed in the Netherlands, mostly in the south-western province of Zeeland. 307 were killed in the United Kingdom, in the counties of Lincolnshire, Norfolk, Suffolk and Essex. 28 were killed in West Flanders, Belgium.

Further loss of life exceeding 230 occurred on watercraft along Northern European coasts as well as in deeper waters of the North Sea; the ferry MV Princess Victoria was lost at sea in the North Channel east of Belfast with 133 fatalities, and many fishing trawlers sank.

North Sea flood in the Netherlands

In the night of 31 January – 1 February 1953 many dykes in the provinces of Zeeland, Zuid-Holland and Noord-Brabant proved not to be resistant to the combination of spring tide and a northwesterly storm. On both the islands and the mainland large areas of country were completely flooded with water. Many people still commemorate the dead on 1 February.


At the time of the disaster, none of the local radio stations broadcast at night, and many of the smaller weather stations operated only during the day, as a result of which the warnings of the KNMI did not penetrate the flood threatened area in time. People did not receive warning and were consequently unable to prepare for the impending flood. Telephone and telegraph networks were disrupted, and within hours amateur radio operators went in to the affected areas with their home-made radio equipment to form a voluntary emergency radio network. These well-organised radio amateurs worked tirelessly, providing radio communications for ten days and nights, and were the only people maintaining contact with the outside world. In addition to the disaster happening during the night, it was Saturday night. As a result, many offices in the disaster area were unstaffed.

Resulting damage

The floods put large parts of Zuid-Holland, Zeeland and Noord-Brabant under water. In Noord-Holland only one polder was flooded. The largest floodings occurred on the islands of Schouwen-Duiveland, Tholen, Sint Philipsland, Goeree-Overflakkee, the Hoeksche Waard, Voorne-Putten and Alblasserwaard. Parts of the islands of Zuid-Beveland, Noord-Beveland, IJsselmonde, Pernis, Rozenburg, Walcheren and Land van Altena were flooded, as well as parts of the areas around Willemstad, Nieuw-Vossemeer and parts of Zeeuws-Vlaanderen. The heaviest death toll was recorded at the islands of Schouwen-Duiveland and Goeree-Overflakkee. The government started the Delta-commission to study the causes and effects of the floodings. They estimated that flooding killed 1,835 people and forced the emergency evacuation of 70,000 more. Floods covered 9% of Dutch farmland, and sea water inundated 1,365 km² of land. An estimated 30,000 animals drowned, and 47,300 buildings were damaged of which 10,000 were destroyed. Total damage was estimated at that time at 895 million Dutch guilders.

"Een dubbeltje op zijn kant" ("A dime on its side" meaning "A narrow escape"), a sculpture by Roel Bendijk of de Twee Gebroeders in the Groenedijk

A near catastrophe prevented

The Schielandse Hoge Zeedijk dyke along the river Hollandse IJssel was all that protected three million people in the provinces of South and Noord Holland from flooding. A section of this dyke, known as the Groenendijk, was not reinforced with stone revetments. The waterlevel was just below the crest and the seaside slope was weak. Volunteers worked to reinforce this stretch. Nevertheless, the Groenendijk collapsed under the pressure around 5:30 am on 1 February. The seawater moved into the deep polder. In desperation, the mayor of Nieuwerkerk commandeered the river ship de Twee Gebroeders (The Two Brothers) and ordered the owner to plug the hole in the dyke by navigating the ship into it. Fearing that the ship might break through and dive into the polder, captain Arie Evegroen took a row boat with him. The mayor's plan turned out to be successful, as the ship lodged itself firmly into the dyke, saving many lives.


Several neighbouring countries sent soldiers to assist in the search and rescue. The U.S. Army sent helicopters from Germany to rescue people from the rooftops. Queen Juliana and Princess Beatrix visited the flooded area only a few days after. A large aid program came on apace, supported by the radio. A national donation program was started and there was a large amount of international aid. Politically, the disaster prompted discussions concerning the protection and strengthening of the dykes, eventually leading to the Delta Works, an elaborate project involving the closing off of most estuary-mouths.

North Sea flood in the United Kingdom

A breach at Erith after the 1953 flood

The North Sea flood of 1953 was one of the most devastating natural disasters ever recorded in the UK. Over 1,600 km of coastline was damaged, and sea walls were breached, inundating 1,000 km². Flooding forced 30,000 people to be evacuated from their homes, and 24,000 properties were seriously damaged.

In individual incidents, 38 died at Felixstowe in Suffolk when wooden prefabricated homes in the West End area of the town were flooded. In Essex, Canvey Island was inundated with the loss of 58 lives and another 37 died when the seafront village of Jaywick near Clacton was flooded.

The total death toll on land in the UK is estimated at 307. The total death toll at sea for the UK, including the MV Princess Victoria, is estimated at 224.

North Sea Flood in Flanders (Belgium)

The coastal defence of Flanders was also severely damaged. Near Oostende, Knokke and Antwerp heavy damage was done to the seadefence with local breaches. 28 people died.


In the Netherlands, an ambitious flood defence system was conceived and deployed, called the Delta Works (Dutch: Deltawerken), designed to protect the estuary of Rhine and Meuse. The works were completed in 1998, upon completion of the storm surge barrier, Maeslantkering, in the Nieuwe waterweg, near Rotterdam.

In the UK, major investments were made in new sea defences, and the Thames Barrier programme was started to secure central London against a future storm surge.

The future

The threat of another flood on the scale of 1953 remains potent, since the combination of events generating a massive storm surge could recur in normal climatic timescales. In addition, two risk factors could increase the likelihood, or the severity, of another incident. Firstly, the western part of the Netherlands and the south-eastern part of the UK are gradually settling lower as other parts lift higher due to isostatic rebound after the disappearance of the glacial sheet from the last ice age. Secondly, sea levels are rising as a result of climate change, which may also cause more frequent and more severe storms.

Flood barriers, improved weather forecasting, modern communications and sophisticated emergency services may help to reduce the potential loss of life from a future flood. However, this must be balanced by the impact of higher population densities, intensive building in coastal areas and, for the UK, by the decay of coastal defences since the 1950s improvements.

Films & Music

  • BBC Timewatch made a documentary about The North Sea flood of 1953, called The Greatest Storm.
  • An episode of the ITV series Savage Planet also featured the flood.
  • In January 2008 the Brighton-based band British Sea Power released their 3rd album entitled " Do You Like Rock Music?" which includes the song "Canvey Island", about the 1953 North Sea floods.
  • The Dutch public broadcasting foundation has made numerous documentaries featuring the North Sea flood of 1953. They have also made 2 English versions of what where originally Dutch documentaries. The titles of these documentaries are "The Greatest Storm" and "1953, the year of the beast".
  • The 1953 Floods were mentioned in detail in the 2007 Film 'Flood'.
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