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North Sea flood of 1953

31 January–1 February storm surge

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Netherlands. Viewed from a U.S. Army helicopter, gives a hint of the tremendous damage wrought by the flood to Dutch islands. NB Original caption ("Zuid Beveland town") was a false determination of th
Agency for International Development · Public domain

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Through Flood, Belgium and United Kingdom

The storm and flooding occurred during the night of Saturday, 31 January to the morning of 1 February 1953. A combination of a high spring tide and a severe European windstorm caused a storm tide of the North Sea. Most sea defences facing the surge were overwhelmed, resulting in extensive flooding. The combination of wind, high tide, and low pressure caused the sea to flood land up to 5.6 metres (18 ft 4 in) above mean sea level.

Realising that such infrequent events could reoccur, the Netherlands and the United Kingdom carried out large studies on strengthening of coastal defences. The Netherlands developed the Delta Works, an extensive system of dams and storm surge barriers. The UK constructed storm surge barriers on the Thames Estuary and on the Hull where it meets the Humber Estuary.

Flooding summary

At the time of the flood, 20% of the land of the Netherlands was below mean sea level (subsequently, with the expansion of Flevoland, this proportion has increased), and the next-highest 30% sat at less than 1 metre (3.3 ft) above sea level. Such land relies heavily on sea defences and was worst affected, recording 1,836 deaths and widespread damage. Most of the casualties occurred in the province of Zeeland.

In England, 307 people were killed in the counties of Lincolnshire, Norfolk, Suffolk and Essex. Nineteen were killed in Eastern Scotland.

Twenty-eight people were killed in the north of West Flanders, Belgium.

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