Construction and maintenance of ports

Project highlights

Creating Gorgon

In 2009, Boskalis was awarded a contract on the Chevron-operated Gorgon Project, one of the largest and most complex contracts to be undertaken in our history. Our scope of work included the design and construction of some of the port facilities at Barrow Island.

Duqm port construction

This extraordinary EPC project we dredged a new harbor basin and entrance channel with a depth of 18 meters, constructed a kilometer-long quay wall, two 400 meter-long jetties and reclaimed land for a port platform including ground improvement and associated 4 km shore protection.

Co-creation in Brazil

From 2011-15, Boskalis was involved in the construction of one of Latin America’s largest port-industry complexes in Rio de Janeiro, Brazil. Boskalis dredged two huge access channels, a turning basin, an inner channel, mooring berths and constructed revetments for the breakwater and over 13 km of access roads.

Dredging techniques

Trailing suction hopper dredger

Trailing suction hopper dredgers can fill their own holds (hoppers) by sucking material from the seabed using a trailing suction head fitted to pipes that trail over the bed as the ship sails.

Cutter section dredger

Dredging with a cutter suction dredger takes place while the vessel is moored with spuds or anchors and consists of powerful cutting action combined with suction.

Backhoe dredger

A backhoe dredger (BHD) is a hydraulic excavator installed on a pontoon. Dredging is executed by the excavator which is mounted on a turntable at the front of the pontoon. The backhoe dredger is mainly used for dredging in shallow or confined waters.

Construction motorway, A4 Delft-Schiedam

Boskalis Nederland was involved in the construction of the A4 motorway from Delft to Schiedam. The client is Rijkswaterstaat. After 40 years, the construction of this final section will bring to an end the public debate about whether this new road was needed.

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Channel expansion, Suez

The Suez Canal is one of the world’s main shipping links and thus of major importance to world trade. The canal extends from Suez on the Red Sea to Port Said on the Mediterranean. Egypt’s Suez Canal Authority awarded the contract to double the canal’s capacity to a consortium, which was aptly named the Challenge Consortium by the Chairman of the Suez Canal Authority, Admiral Mohab Mamish.

Onshore co-mining project, Lelydorp

Suralco L.L.C., an indirect joint subsidiary of Alcoa Inc. and Alumina Ltd., has awarded Boskalis a contract for the mining of bauxite in Lelydorp, Suriname. Boskalis is responsible for the entire mining process, from engineering and overburden removal to bauxite mining and ore delivery.

Port development, Cherbourg

To accommodate an assembly plant for wind turbines, a 220 m quay wall had to be added to the existing quay and two hectares of land behind the new quay had to be reclaimed.

Dredging and reclamation, Songdo International City

Boskalis has been awarded a contract by Daewoo E&C for the dredging and reclamation of new land for Songdo International City on the waterfront of Incheon, South Korea. The total value of the contract amounts to approximately EUR 80 million.

Coastline fixation, Cotonou

The project was developed to arrest coastline erosion in the densely-populated centre of Cotonou caused by two phenomena: erosion and human interference along the West African coastline.