How much of the Netherlands is affected by the problem regulated by the Hoogheemraadschap van Rijnland?
Hoogheemraadschap van Rijnland The Hoogheemraadschap van Rijnland is the oldest water board of the Netherlands, having received its first commission to protect the land from flooding back in 1248 from William II of Holland. It conducts water control activities in the general area known as Rijnland. The Netherlands has 27 Waterboards or "Waterschappen" acting independently from the National government administration to manage the continuing Dutch struggle against water.
Bergschenhoek Bergschenhoek (] ) is a town and former municipality in the Netherlands. It is situated roughly 10 km to the north of Rotterdam in the province of South Holland. The former municipality had a population of 17,075 in 2006, and covered an area of 15.52 km² (5.99 mile²) of which 0.63 km² (0.24 mile²) is water. On 1 January 2007, the town was merged with neighbouring towns Berkel en Rodenrijs and Bleiswijk to form the new municipality Lansingerland; these three towns collectively are known locally as the "3B Hoek".