Delta Works

The Delta Works are a number of constructions that were built between 1950 and 1997 in the southwest of the Netherlands to protect a large area of land from the sea. The works consist of dams, sluices, locks, dykes and storm surge barriers. The aim was to shorten the Dutch coastline and limit the amount of dikes that were to be heightened.The estuaries of the rivers Rhine, Meuse and Scheldt have been subject to many floodings over the centuries. After building the Afsluitdijk, the Dutch started studying the damming of the Rhine-Meuse Delta. Plans were developed for shortening the coastline and turning the estuary into freshwater lakes. By shortening the coastline less dykes would have to be reinforced.Due to indecision and the Second World War, these plans remained studies and little action was taken. In 1950 two small estuary mouths, the Brielse Gat near Brielle and the Botlek near Vlaardingen were dammed. After the North Sea flood of 1953, a commission was installed which had to come up with a plan to research the causes and seek measures to prevent such disasters in future. They revised some of the old plans and came up with the so called "Deltaplan". The works were finished after almost fifty years in 1997 with the completion of the Maeslandtkering and the Hartelkering. The Dutch government often cites the Delta Works project as the world's largest flood protection project. With over 10,250 miles of dikes (1,500 miles designated as primary dikes and 8,750 miles as secondary dikes) and 300 structures, the project is one of the most extensive engineering projects in the world.