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Netherlands & Belgium |
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Dutch coast
The Dutch beaches suffer constant damage due to heavy weather and sea conditions. In the last years, Dutch Dredging executed nourishment work by order of the Dutch government (Rijkswaterstaat) on different beaches including: Callantsoog, Den Helder, Noordwijk, Petten, Ameland and Vlieland. The works were executed with the trailing suction hopper dredgers 'Seine' (hoppervolume 4317 m3) and the 'Amazone' (hoppervolume 2770m3). A total volume of 15.000,000 m3 of sand was dredged in a sand-winning area at a depth of between 15 m and 20 m. The material was then transported over a maximum sailing distance of approximately 12 nm and dumped at the dumping site close to the beach or pumped onto the beaches through landlines, floating and submerged pipelines. |
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Ketelmeer
The Ketelmeer project was the largest environmental dredging project in Europe. Dutch Dredging participated in the project with the environmental bucket dredger 'Aalscholver'. The 'Aalscholver' is specially equipped to work accurately and environmental-friendly. The high precision is necessary because only the contaminated layer has to be removed from the bottom of Lake Ketelmeer. If the dredger does not dig deep enough, pollution will remain behind. Dredging too deep is also disadvantageous because this would result in too much clean mud being taken to the storage depot and taking up 'expensive' depot space there. Spillage is also prevented with a patented emptying system on the bucket and a closed bucket-ladder. |
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| Location |
Scheveningen |
Period |
1992 - 2009 |
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Client: Dienst Stadsbeheer Scheveningen
Description: Maintenance and Pollution sanitation
Equipment: Aalscholver, Averano, Lesse, Amazone, Alcyon
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| Location |
Rotterdam |
Period |
1992 - 2009 |
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Client: Gemeente Rotterdam
Description: Maintenance Harbour
Equipment: Seine, Amazone, Alcyon, Alk, Adelaar
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| Location |
Den Helder |
Period |
1980 - 2009 |
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Client: Ministerie van Defensie, Den Helder
Description: Maintenance Marine Harbour, Pollution Sanitation
Equipment: Seine, Amazone, Alcyon, Alk, Adelaar
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| Location |
Delfzijl |
Period |
1992 - currently |
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Client: Havenschap Delfzijl
Description: Maintenance Harbour
Equipment: Airset, Albatros
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| Location |
Harlingen |
Period |
1992 - currently |
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Client: Gemeente Harlingen
Description: Maintenance Harbours
Equipment: Adelaar, Ara, Obelix, Averano, Airset
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| Location |
Ketelmeer |
Period |
1996 - 2002 |
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Client: Rijkswaterstaat, directie IJsselmeergebied
Description: Pollution Sanitation
Equipment: Aalscholver, Averano
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| Location |
Terneuzen |
Period |
1992 - 2000 |
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Client: Havenschap Terneuzen
Description: Harbour expansion
Equipment: Atlas
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| Location |
Zeeland |
Period |
1993 - currently |
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Client: RWS
Description: Maintenance Harbours
Equipment: Lesse, Adelaar, Albatros
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| Location |
Northseacost
(Noordwijk, Bergen, Egmond) |
Period |
1997 - 2005 |
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Client: Rijkswaterstaat, directie Noord Holland
Description: Underwater suppletion
Equipment: Amazone
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| Location |
Rotterdam |
Period |
2002 |
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Client: Gemeente Rotterdam
Description: Dredging and Quay enforcing
Equipment: Backhoedredger
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| Location |
Axel |
Period |
1998 - 2000 |
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Client: Zeeland Seaports
Description: Reclamation
Equipment: Atlas
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| Location |
Dinant (Belgium) |
Period |
1994 - 1996 |
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Client: Ministere Wallon de l'equipment et des transports
Description: River Deepening
Equipment: Obelix
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