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Design and construction harbor channel, Sydney harbor

The 'Sydney Harbor Channel Dredging Project' in Nova Scotia, Canada, involved dredging and reclamation work as part of the construction of the new Sydney Port container terminal located on the northeast coast of Canada. Once operational, Sydney Port will be the most northerly deepwater container terminal on the North American east coast.

The project required the creation of a 12km access channel, for which approximately 4 million m3 of sand and silt was dredged. This material was then taken to a confined disposal facility (CDF) forming the foundation of the future terminal. The CDF was constructed by Boskalis and engineered by Hydronamic, the Boskalis engineering consultancy.

Project specification

  • Detailed design of CDF
  • Debris and wreck removal in access channel, construction of CDF, including the installation of 80,000 t of filter material (10 - 100 kg rocks)
  • and 130,000 t of armor rock (0.1 - 3 t rocks)
  • Deepening of existing natural harbor:
  • dredging 3.3 million m3 of sand and gravel and 0.9 million m3 of mud
  • Disposal of dredged material in CDF
  • Execution of environmental monitoring and other environmental control measures.

Related projects

Selected filters
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Expansion coal terminal, Muuga

The Muuga Coal terminal, sited on a bay, east of the existing port of Muuga, is to handle some five million tons of Siberian coal a year for destinations worldwide. The coal is shipped to Muuga by rail. Future developments may include container berths and steel facilities. The main contractor for the development of the Muuga coal terminal was the Estonian project management group A.S. Merko Ehitus. The dredging subcontract was awarded in late May 2003 to Terramare Eesti O.Ü., the Estonian arm of the Finnish-based Boskalis group company Terramare Oy.

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Construction drilling island and ice barriers, Kazakhstan

Agip Kazakhstan North Caspian Operating Company B.V. (Agip KCO), a consortium of eight leading oil companies, is active in the northern section of the Caspian Sea. The gas and oil reserves in this area were mapped out in 1998 and 1999. To allow for their exploitation, Boskalis International has created an artificial island measuring 225 x 225 meters, and underwater berms, for Agip KCO. Four years later, the time was ripe for the construction of the drilling island and ice barriers. Once they were in place, Agip KCO could start to extract and distribute the oil reserves.

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Port construction, Daya Bay

In Daya Bay, P.R. China, a USD 4.3 billion petrochemicals complex was being built by CNOOC and Shell Petrochemicals Company (CSPC). Daya Bay is located in the southwest of China, Huizhou Municipality, Guangdong Province. The project called for the construction of two marine facilities, one nearby the petrochemicals complex, the other one further offshore. Early 2004, the Boskalis International B.V. and Nanjing Changjiang Waterway Engineering Bureau (NCWEB) partnership commenced dredging for the CSPC Nanhai Petrochemicals project. Key requirement of the project was to preserve the sensitive environment in Daya Bay. Hydronamic, Boskalis’ own engineering consultancy, designed the required monitoring plan and took responsibility for its implementation.

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Creation artificial lagoon, Barcelona

Increasing or compensating nature is one of the challenges in modern infrastructural projects. Within the scope of the extension of the Port of Barcelona compensation was required for nature to be preserved. A natural reserve, south of the Port of Barcelona and north of the International Airport of Barcelona, had to be increased and was realized within the city limits of Prat de LLobregat by the use of the cutter suction dredger Para and its auxiliary equipment.

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Port development, Coega

The Coega port project - on Algoa Bay at the mouth of Coega River - is designed to act as a catalyst for regional economic development. The new port and its adjacent Industrial Development Zone, 20 km east of Port Elizabeth, are described as South Africa's largest infrastructural development scheme for a decade. 

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Cleanup petroleum harbor, Amsterdam

The Amsterdam Petroleum harbor on the North Sea Canal has been used for the storage and transshipment of oil products since its construction in 1887. Over many years routine operations and unchecked discharges resulted in severe contamination of the harbor.