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Flood

Malpasset Dam failure

2 December 1959 Reyran valley, Fréjus (Var) · France

Malpasset Dam failure
Image: Eolefr · CC BY-SA 3.0, via Wikimedia Commons
423Deaths
7,000Displaced / homeless
Not quantifiedEstimated cost

Five years after its completion, the Malpasset arch dam, swollen by torrential rain, gives way in the evening. Some fifty million cubic metres of water rush down the Reyran valley and devastate Fréjus all the way to the sea.

Consequences

Human consequences

423 deaths and about 7,000 people affected. For pregnant women whose partner died, the state revives and adapts posthumous marriage.

Environmental consequences

A strip nearly a kilometre wide is swept away: farms, roads, railways and buildings are carried off.

Economic consequences

With no party held liable, the builders’ insurers pay no compensation: the state, the département and public generosity cover the damage.

Political consequences

The courts find no fault. France creates a permanent technical committee on dams in 1966 and steps up dam monitoring nationwide.

Further reading

Similar disasters

In the rankings : The worst disasters in France No. 5The deadliest floods No. 7

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