Ironically enough the parts that flood the most in the Netherlands are the parts which are not below sea level. Just this week Doetinchem experienced some high

Ironically enough the parts that flood the most in the Netherlands are the parts which are not below sea level. Just this week Doetinchem experienced some high water due to heavy rainfall [1]. In the south-east and east they sometimes also have problems with the amount of water the rivers over there have to process. In both cases the problem is the river can't process the water fast enough. The parts below sea-level are mostly all in the delta area. Meaning there is little risk of rivers overflowing since they are at their widest in the delta. And as for rainfall; That just means pump water harder out of the "tub" then normal. As for the threat of sea-water in these areas, that's were the Delta Werken[2] are for. [1] https://nos.nl/artikel/2535587-noodweer-leidt-tot-overlast-water-weggepompt-in-ziekenhuis-doetinchem https://nos.nl/artikel/2535587-noodweer-leidt-tot-overlast-w... [2] https://en.wikipedia.org/wiki/Delta_Works https://en.wikipedia.org/wiki/Delta_Works