Europe’s largest seaport, the Port of Rotterdam stretches about 40 km from the centre of Rotterdam, in the Dutch province of South Holland, west along the Nieuwe Maas and the Nieuwe Waterweg to the reclaimed Maasvlakte on the North Sea coast, covering 105 km² in the Rhine–Meuse–Scheldt delta. It handled about 467 million tonnes of cargo in 2022, 11th in the world and the most outside Asia, and about 13.4 million TEU of containers in 2023, 12th on Lloyd’s List’s ranking. The port grew from the city’s medieval harbours, but its modern form dates from the opening of the Nieuwe Waterweg ship canal in 1872. From 1962 until 2004 it was the busiest port in the world by tonnage, and it matters because the Rhine carries its cargo deep into Germany, Switzerland and beyond. How it does that is a story of channels, reclaimed land, robots and a moving flood barrier.
The Eurogeul: A 57 km Channel Dug into the North Sea
The system starts well out of sight of land. The largest ships approach Rotterdam along the Eurogeul, a channel dredged into the floor of the North Sea that is 57 km long and 23 m deep. It forms a deep-water route within the traffic separation schemes of the southern North Sea and the English Channel, and ships drawing 20 m or more must use its whole length, taking a pilot on board before they enter. Shallower ships, drawing between 14 and 20 m, need only its last 14 km, the Maasgeul, and pick up pilots near the Maascenter buoy.
Keeping the channel open
A channel cut into a sandy seabed has to be maintained rather than simply dug. Every year dredgers remove between 5 and 7 million tonnes of sand from the Eurogeul. It was widened to 600 m in 2008, and the Maasgeul to 830 m in 2012 in time for the opening of Maasvlakte 2. Navigation on it is strictly regulated, with traffic of about one ship a day (357 in the latest year recorded).
The 24-metre quay
At the end of the channel the EECV quay offers a draught of 24 m. It was for years one of only two places where the ore carrier MS Berge Stahl could moor fully loaded, the other being Ponta da Madeira in Brazil, until a new iron ore wharf opened at Caofeidian in China in 2011. With a draught of 23 m the ship had just 1 m of water beneath its keel, so it could berth only within a restricted tidal window. Very large ore carriers such as the Vale Rio de Janeiro use the Eurogeul in the same way, entering at high tide.
Maasvlakte 2 and the Terminals Without Drivers
The land at the seaward end of the port did not exist before the 1970s. As trade outgrew the city’s old basins at Delfshaven, the Maashaven, Rijnhaven and Waalhaven, and later the harbours of Nieuw-Mathenesse, the Eemhaven and Vondelingenplaat, the port moved west in stages: the Botlek, then Europoort along the Calandkanaal, and in the 1970s the first Maasvlakte, reclaimed from the sea on the south side of the Nieuwe Waterweg near Hook of Holland. Europoort, the “gate to Europe”, is packed with refineries, tank farms, ore and coal handling and car terminals.
Building land in the sea
Maasvlakte 2 is the largest civil engineering project in the Netherlands since the Delta Works. Approval came in 2004, was halted in 2005 by the Council of State, the Raad van State, because the plans did not take enough account of environmental effects, and was granted again on 10 October 2006. Builders reclaimed about 2,000 hectares behind a 4 km sea defence, about half of it for port-related industry, and the area opened on 22 May 2013. APM Terminals opened its terminal there in April 2015, and Rotterdam World Gateway built one with a 20 m deep dock and its own rail station, designed for about 2.35 million containers a year.
Automated guided vehicles and stacking cranes
Rotterdam was an early adopter of the automated container yard. Europe Container Terminals, operator of two major terminals, pioneered the approach at its Delta terminal, nicknamed “the ghost terminal”. There, driverless vehicles each carry one container and steer themselves around the quay using a magnetic grid set into the tarmac; infrared sensors identify each box as it is loaded. Unmanned automated stacking cranes lift containers between the vehicles and the stacks. The later Euromax terminal refined the design so that straddle carriers are no longer needed on the land side either. The port authority also runs an Internet of Things platform that collects data from sensors across the port, and in May 2019 it sent a sensor-packed box, Container 42, on a two-year data-gathering voyage.
The Nieuwe Waterweg and the Maeslantkering Storm Barrier
Every ship bound for the older parts of the port, from the Botlek to the city, uses one waterway. By the mid-nineteenth century the natural branches of the Rhine and Meuse were silting up, the delta’s many small waterways made the port hard to reach, and ships had to sail around Voorne-Putten to get to sea, a trip that could take several days or even weeks. A law of 1863 authorised a new canal, and the engineer Pieter Caland designed a cut through the dunes at Hook of Holland. Work began on 31 October 1863 with the expropriation of farmland from Rozenburg to Hook of Holland; two parallel dikes followed, extended 2 km into the sea to disrupt the coastal currents that deposit silt, and digging began on 31 October 1866. Caland hoped the river’s own flow would scour the channel deeper, but the last stretch had to be dug by hand. The Nieuwe Waterweg opened in 1872, about 20.5 km long, and it has been deepened several times since. There is still no bridge or tunnel across it.
Two 210-metre floating gates
An open channel to the sea is also an open door for storm surges, and the final stage of the Delta Works had to protect Rotterdam, then the world’s largest port, without blocking its main shipping route to the sea. Reinforcing dikes as far as 50 km inland would have taken at least 30 years and meant rebuilding historic town centres. Instead a competition was held, won by the BMK consortium of HBG (now BAM), Volker Stevin and Hollandia Kloos. Their Maeslantkering, built from 1991 to 1997, has two gates each 210 m long, held by steel trusses 237 m long. The gates normally lie in dry docks on either bank. When a surge of 3 m above NAP, the Dutch reference level, is forecast, a central computer system called BOS orders the docks flooded; the hollow gates float out, swing shut across the 360 m-wide waterway and are sunk into place. It is one of the largest moving structures on Earth, and a second, smaller barrier, the Hartelkering, guards the Hartelkanaal. Queen Beatrix opened it on 10 May 1997. It closed against a real storm for the first time on 8 November 2007, when the trigger level had been lowered to 2.6 m for a test season, and on 21 December 2023 its computer closed it automatically at the full 3 m threshold for the first time.
Rhine Barges, the Betuweroute and a Hinterland of 500 Million People
All this engineering serves one geographic fact: the port sits where the Rhine and Meuse meet the sea. Cargo leaves by seagoing ship, river barge, train and lorry, and barges can reach the Ruhr, Switzerland, Belgium and France by river, and the rival port of Antwerp through the Scheldt–Rhine Canal. The port’s five port areas and three distribution parks serve a hinterland of more than 500 million consumers across Europe. That reach is why Rotterdam held the title of the world’s busiest port by tonnage from 1962 until 2004, when Singapore overtook it, followed by Shanghai and other Chinese ports that now dominate the rankings.
A 160 km freight railway to Germany
To take pressure off roads, the Netherlands built the Betuweroute, a double-track freight line running straight from the Maasvlakte to Zevenaar on the German border. Agreed with Germany in the Treaty of Warnemünde of 1992, it opened on 16 June 2007 at a cost of €4.7 billion, more than twice the original budget. Its 3 km Botlekspoortunnel runs beneath the harbour, replacing the old Botlek bridge.
What it means for the region
Since 1 January 2004 the port has been run by the Port of Rotterdam Authority, a company owned by the municipality and the Dutch state, with the individual terminals operated by separate companies. Petrochemicals remain its core business, with large refineries west of the city, and wind turbines now line the exposed Maasvlakte coast. The authority aims for an emissions-free port by 2050; in 2024 it paid out €5.6 million in discounts to cleaner ships under the Green Award and Environmental Ship Index schemes, and it is installing shore power so ships can switch off their engines at berth. Upstream, the abandoned inner harbours are being rebuilt as city: the Kop van Zuid, derelict since the German bombing of 1940, gained the Hotel New York in 1993 and the Erasmusbrug in 1996. For the river system behind the port, read our guide to the Rhine delta, then compare Rotterdam with its nearest rival at the Port of Antwerp and the waters of the North Sea that both depend on.