The Doel plant was originally designed for a 10,000 year flood of 9.13 m TAW ( Tweede Algemene Waterpassing ) . The highest measured level was 8.10 m TAW during the North Sea flood of 1953 . The site was filled to 8.86 m TAW during construction and fitted with a seadyke of 12.08 m TAW . The other dykes around the site have a height of 11 m TAW . Probabilistic studies performed after Fukushima showed the height of a 10,000 year flood had slightly increased to 9.35 m TAW , 22 cm higher than the studies performed in the 1960s . The highest possible tsunami is lower than 0.5 m . During post-Fukushima stress tests a dyke failure with a water level of 10.2 m was simulated . Due to the presence of bulkheads and pedestals in the buildings no safety functions were endangered
North Sea flood of 1953
North Sea flood of 1953
Doel Nuclear Power Station