The Port of Rotterdam is the largest seaport in Europe, and the world's largest seaport outside of East Asia, located in and near the city of Rotterdam, in the province of South Holland in the Netherlands. From 1962 until 2004, it was the world's busiest port by annual cargo tonnage. It was overtaken first in 2004 by the port of Singapore, and since then by Shanghai and other very large Chinese seaports. In 2020, Rotterdam was the world's tenth-largest container port in terms of twenty-foot equivalent units (TEU) handled. In 2017, Rotterdam was also the world's tenth-largest cargo port in terms of annual cargo tonnage. Covering , the port of Rotterdam now stretches over a distance of . It consists of the city centre's historic harbour area, including Delfshaven; the Maashaven/Rijnhaven/Feijenoord complex; the harbours around Nieuw-Mathenesse; Waalhaven; Vondelingenplaat; Eemhaven; Botlek; Europoort, situated along the Calandkanaal, Nieuwe Waterweg and Scheur (the latter two being continuations of the Nieuwe Maas); and the reclaimed Maasvlakte area, which projects into the North Sea. The Port of Rotterdam is located in the middle of the Rhine-Meuse-Scheldt delta. Rotterdam has five port concessions (ports) within its boundaries - operated by separate companies under the overall authority of Rotterdam. Rotterdam consists of five distinct port areas and three distribution parks that facilitate the needs of a hinterland with over 500,000,000 consumers throughout the continent of Europe. Nieuwe Waterweg In the first half of the 19th century the port activities moved from the centre westward towards the North Sea. To improve the connection to the North Sea, the Nieuwe Waterweg ("New Waterway"), a large canal, was designed to connect the Rhine and Meuse rivers to the sea. The Nieuwe Waterweg, designed by Pieter Caland, was to be partly dug, then to further deepen the canal bed by the natural flow of the water. Ultimately however, the last part had to be dug by manual labour as well. Nevertheless, Rotterdam from then on had a direct connection between the sea and harbour areas with sufficient depth. The Nieuwe Waterweg has since been deepened several times. It was ready in 1872 and all sorts of industrial activity formed on the banks of this canal.. Europoort and Maasvlakte extensions Over the years the port was further developed seaward by building new docks and harbour-basins. Rotterdam's harbour territory has been enlarged by the construction of the Europoort (gate to Europe) complex along