Malpasset was an arch dam on the Reyran River, constructed approximately 7 km north of Fréjus on the Côte d'Azur, southern France, in the Var département. It collapsed on December 2, 1959, killing 421 people in the resulting flood. Various sources indicate death numbers of 361, 400, 423, 429 or 510. The damage amounted to a total of $68 million.
