News and information for the worldwide dredging industry

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May/June - DR/INT


In late April, DEME announced several contracts it was awarded in Germany, France, United Kingdom and Spain. The total value of these all these European contracts amounts to 115 million euros (about $125 million). Although the DEME Group, a dredging, en­vironmental and marine engineering compa­ny, is headquartered in Zwijndrecht, Belgium, it operates in all international markets and has subsidiaries throughout Europe. 

DEME’s German subsidiary Nordsee Nass­bagger- und Tiefbau GmbH, based in Bre­men, has acquired the maintenance dredging contract on the River Elbe in Germany. The contract was awarded to a joint venture, in­cluding DEME’s German subsidiary, for a pe­riod of two years. Hamburg’s port faces com­petition from other ports in Germany as well as neighboring countries such as the Port of Rotterdam in the Netherlands. Given the in­creasing size of container ships, maintaining the 116-kilometer-long fairway of the River Elbe connecting the North Sea to Hamburg is crucial to ensuring the Port of Hamburg’s competitiveness. 

Trailing suction hopper dredge Marieke will be deployed on the maintenance works as soon as the vessel has finalized the recla­mation works for the port expansion in Cux­haven also on the River Elbe. The Marieke is 97.5 meters (about 320 feet) long by 21.6 meters wide (about 71 feet), with a draft of 7.1 meters (about 23 feet). She can dredge between 22 and 33 meters (about 72 and 108 feet) deep and has a total installed power of more than 6,800 kW and a hopper capacity of 5,600 cubic meters (about 7,325 cubic yards). 

Nordsee Nassbagger- und Tiefbau also has a two-year maintenance dredging con­tract on the River Weser, ensuring the navi­gational depth to the port of Bremerhaven. This means that DEME is now maintaining the fairways toward the two biggest container ports in Germany. 

DEME’s newly acquired contracts in France are at the ports of Calais, Boulogne-sur-Mer, Brest and Bordeaux. At the ports of Calais and Boulogne-sur-Mer DEME’s French subsidiary, Société de Dragage International, will execute maintenance dredging works. In the port of Brest, Société de Dragage Inter­national will participate in the building of a new 400-meter (about 1,300-foot) quay wall and a 100-meter-wide (328-foot) platform as part of a new terminal for heavy loads. In Bor­deaux, a water injection dredging campaign will be executed on the Gironde River, in or­der to maintain access to the port. 

In the United Kingdom, DEME’s subsid­iary NewWaves Solutions Ltd. was awarded the contract for the dredging and beach re­plenishment works at Dawlish Warren in Cornwall. Dawlish Warren is a small seaside resort near the town of Dawlish on the south coast of Devon in England and its beach is key to its attraction as a vacation destination. Dawlish Warren is located at the mouth of the Exe Estuary opposite Exmouth and has a beach, a National Nature Reserve spanning 506 acres and a golf course. Its renowned sand spit, a narrow point of sandy land, has been shrinking over the last few decades as a result of erosion. 

And finally, DEME has been awarded a contract in Spain for dredging works at the Port of Barcelona for the construction of a new quay wall. Work was started in May 2017. 

River Elbe, Germany 


River Weser 

Port of Calais, Boulongne-sur-Mer, Brest, Bordeaux 

The Central Dredging Association (CEDA) released its Annual Report 2016 entitled “Understanding Dredging.” Accord­ing to President Polite Laboyrie, “CEDA ex­ists, in part, to provide a forum for knowledge and information exchange, and to raise the profile of the dredging profession throughout our region.” The Annual Report outlines the accomplishments of this non-governmental organization. 

Among the accomplishments reported were the CEDA “Environment Commission Seminar to Inform Spanish Guidelines” held in May 2016 at Puertos del Estados, Madrid, Spain; the “Iberian Conference on Dredging for Sustainable Port Development”, organized in October 2016 for the Portuguese Engineers Association in Lisbon, Portugal; the “IHS DPC Innovation Awards” held in London, United Kingdom in November 2016; a number of webinars including one on “Adaptive Man­agement in Dredging,” and a series on “Dredg­ing Equipment and Technology”, which can be viewed online at the CEDA website. 

Two publications have been launched in 2016 and working groups are continuing their development through 2017: One is “Beneficial Use of Dredged Sediments” and the other is an information paper with the working title “Sea-floor Integrity”. Also being prepared is a handbook which transforms the report from the CEDA Dredging Days 2016 Interactive Session on Sustainability into a publication with the working title, “Dredging for Sustain­able Infrastructure”. The book, a joint pro­duction of CEDA and IADC (International Association of Dredging Companies) is sched­uled to be finished in time for presentation at the CEDA Dredging Days 2017 Confer­ence, which will take place in November in Rotterdam. 

CEDA consist of four regional sections: Af­rica, Belgium, the Netherlands and the United Kingdom, all of which periodically organize their own meetings and activities. In the Annual Report each section highlights the events that they have organized in their home region. In addition, CEDA currently has five active commissions that report to the Board: the Communi­cations, Dredging Management, Educational Activities, Environment and Strategy commissions. The daily management of CEDA is carried out by a permanent secretariat, which is headed by Anna Csiti, gen­eral manager, Yvonne Duivenman, administrative assistant and a part-time assistant, Mark Luchs, an MSc student at the Delft University of Technology. 

CEDA membership is comprised of both corporations and individu­als who are dredging contractors, consultants, suppliers, project owners and others in industries related to dredging. CEDA is located in Delft, the Netherlands, and is part of the tripartite World Dredging Organiza­tion along with the Western Dredging Association (WEDA) and East­ern Dredging Association (EADA). CEDA is active in Europe, Africa and the Middle East. 
The full Annual Report is available at 

In a 50-50 joint venture, Belgian dredging company Jan De Nul Group and Royal Boskalis Westminster N.V. of the Netherlands have been award­ed a contract by port operator Jawaharlal Nehru Port Trust for the deep­ening and widening of the access channel toward Jawaharlal Nehru Port, which lies east of Mumbai, India. The contract was announced in early April and carries a value of approximately 250 million euros ($272 mil­lion). The works are scheduled to commence a few weeks after the signing and will be completed within two years. 

The areas to be dredged include the extension of a 33.5-kilometer (about 21-mile) long access channel to 35.5-kilometer (about 22-mile) long and various turning basins and anchorage areas. The draft of the channel will be deepened from 14 to 15 meters (about 46 to 49 feet) and widened from 370 meters to 450 meters (about 1,214 feet to 1,476 feet). In total about 40 mil­lion cubic meters (about 52 million cubic yards) of sand, silt, clay and rock will be removed. A jumbo trailing suction hopper dredge in combination with a jumbo cutter suction dredge and a large backhoe will be deployed. 

The project is driven by the growth in global trade and upon comple­tion of the project the port will be able to accommodate larger container vessels. Jawaharlal Nehru Port is the largest container handling port in India, accounting for 55 percent of the total container volumes handled at India’s 12 public ports and around 40 percent of the nation’s overall containerized ocean trade. 


In late January 2017, two new joint ventures were announced by Boskalis Westminster. The first, between Boskalis Westminster and McLaughlin & Harvey, is undertaking works on the initial stages of Pe­terhead Port Authority’s £50 million (USD $64.5 million) North Harbour development. The project includes a new dedicated whitefish landing hub and extensive deepening of the North Harbour. It is scheduled for comple­tion in the spring of 2018. 

Boskalis Westminster is the British affiliate of the Dutch maritime spe­cialist Royal Boskalis working in the United Kingdom. McLaughlin & Har­vey is a building and civil engineering contractor undertaking work in the public and private sectors throughout the United Kingdom and Ireland. 

By increasing market capacity and doubling the depth of water available in the North Harbour, the development will fully address the dual need for fishing vessel deepwater berthing in the extensive North Harbour. In order to allow the inner harbor floors to be dredged from a depth of 3.2 meters (10.5 feet) to 6.5 meters (21 feet) chart datum, the existing quay walls are being strengthened using an innovative RD Piling® (Ruukki’s drilled steel pipe piles) solution, a retaining wall structure developed in Scandinavia. This system has been tailored to suit the specific requirements at Peterhead, as a result of close collaboration between McLaughlin & Harvey and RPS Consulting Engineers, Peterhead Port’s design engineers. 

Boskalis Westminster will undertake rock dredging and reclamation, utilizing both the dredged rock and additional imported material. One of the large backhoe dredges from the Boskalis fleet will carry out the dredging. 

The second joint venture, known as VSBW is a cooperation between VolkerSteven and Boskalis Westminster. VolkerStevin provides engineer­ing solutions for civil engineering, land remediation and regeneration, water and marine infrastructure and flood and coastal protection. VSBW has been appointed as the main contractor for the marine civil engineer­ing stage of the Port of Dover’s flagship Dover Western Docks Revival (DWDR) development. 

The Port of Dover has awarded the £115 million (USD $148 million) marine structures and bridge contract of this signature development to VSBW, which represents a substantial part of the single biggest investment ever undertaken by the port. The project comprises the next evolution of the port, and aims to deliver long-term capacity for a key international gateway handling trade to the value of £119 billion ($154 billion) repre­senting up to 17 percent of UK trade in goods. 

This first stage includes the design and construction of two new berths including quay walls and land reclamation as well as a new marina pier, the marina curve, navigation channel and new lock gates, a drawbridge and capital dredging work. The major phase of the construction program is scheduled to be completed at the end of 2018. 

Boskalis Westminster will undertake the dredging and land reclama­tion, with the compaction work to be executed by its affiliated company Cofra. Cofra BV is known for its innovative Rapid Impact Compaction (RIC) method, which speeds up the land reclamation consolidation pro­cess. Equipment from the Boskalis fleet will include small, medium and large trailing suction hopper dredges and a medium size backhoe. 

Belgian dredging and marine specialist DEME has been awarded sev­eral new contracts in Africa with a total value of approximately 125 mil­lion euros (USD $137 million). The contracts were awarded over the last few weeks for projects in Angola, Benin, Ghana, Ivory Coast, Liberia and Nigeria. 
In Angola, a five-year maintenance dredging contract has been awarded by Angola LNG for its gas terminal in Soyo. Work will start by mid- June 2017. 
In Benin, a contract was awarded for coastal protection works at the Cotonou shoreline. Work will include beach nourishment with a total volume of 1.5 million cubic meters (1.96 million cubic yards), as well as revetment works and groyne construction. 

Ghana’s main seaport, Tema, operated by Me­ridian Port Services (MPS), is gearing up to ac­commodate some of the world’s largest container ships and increase cargo handling services and capacity. DEME is participating in a contract for the Tema Port expansion project, which includes dredging and land reclamation of 3 million cubic meters (3.9 cubic yards). Work is scheduled to start by the end of May 2017. 

In Ivory Coast, a contract has been awarded for the maintenance dredging of the Port of Abi­djan. Work will be executed in May 2017. It is the third consecutive time that DEME has been contracted by the Port Autonome d’Abidjan for maintenance dredging. 

DEME was also awarded a contract for dredg­ing by Liberia’s National Ports Authority. Main­tenance dredging works will take place at the Freeport of Monrovia. 
In Nigeria, DEME acquired a contract for the Maiyegun Waterfront development in La­gos, where approximately 600,000 cubic meters (785,000 cubic yards) of material will be re­claimed to raise the level of an existing beach. Maiyegun Waterfront will include new housing units, a commercial hub, as well as leisure facili­ties. This contract follows the recently won proj­ect for the Lagos Deep Offshore Logistics Base (LADOL), where DEME is involved in the yard and quay wall construction, as well as the dredg­ing of the berth pocket and access channel to the quay, on behalf of Samsung Heavy Industries. 

With the theme of “Enabling Trade, Ener­gizing the World”, the 30th IAPH World Ports Conference 2017 was held in Bali, Indonesia, from May 7 to 12 at the Bali Nusa Dua Con­vention Center (BNDCC). The International Association of Ports and Harbors (IAPH), the global trade association for seaports worldwide, is a non-profit, non-governmental organization (NGO) headquartered in Tokyo, Japan. The meeting brought together a broad range of stake­holders who “discussed various maritime issues and their solutions in order to deliver positive impacts for global maritime business.” 

Some 650 delegates from 50 countries attend­ed, making the meeting the largest International Association of Ports and Harbors event of the year. Attendees included government officials, operators and association who are experts in the field of port, logistics, and other maritime indus­tries such as dredging. 

To open the conference Luhut Binsar Panjai­tan, Coordinating Minister for Maritime Affairs, Republic of Indonesia welcomed all the partici­pants to Bali. Also delivering a speech, through a video message, was Secretary General of the In­ternational Maritime Organization, Kitack Lim. Other speakers hailed from a wide spectrum of international ports including representatives of the Baltic Ports Organization; the Port of Rot­terdam International; the Port of Antwerp; the Baku International Sea Trade Port CJSC, Azer­baijan; the Hamburg Port Authority (HPA); the Port of Marseille Fos Authority, France; Kobe- Osaka International Port Corporation, Japan; the Port of Barcelona, Spain; and Guangzhou Port Authority, China. 

Representing the dredging industry was Sec­retary General of the International Association Dredging Companies, Rene Kolman, who pre­sented two dredging-related papers, one was an update on FIDIC’s Form of Contract for Dredg­ing and Reclamation Works (Dredgers Contract; Second Edition, 2016), also known as the Blue Book, and the other on applying “Ecosystems Services” to dredging operations. Other inter­national organizations represented The World Bank; and the International Transport Forum (ITF) of Organisation for Economic Co-oper­ation and Development (OECD), as well as academic institutions such as Cardiff University, Wales, United Kingdom; and the Department of Port and Waterways, Delft University of Tech­nology, the Netherlands. 

Also present at the conference was Patrick Verhoeven. A week prior to the conference, Mr. Santiago Mila, President IAPH, announced that “Mr. Patrick Verhoeven has been appointed as the IAPH Managing Director-Policy and Strate­gy. He will start officially working for IAPH from 1st September 2017…” 
IAPH comprises some 200 Regular Members – leading ports in 90 countries, who are public port authorities, private port operators, and gov­ernment agencies responsible for ports. 

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