NorNed Lowering & Remidial Burial, Offshore Services

NorNed Lowering and Remedial Burial using Mass Flow Excavation

For this project, the trailing suction hopper dredger, Njord R, was utilized with a mass flow device designed by Rohde Nielsen, as well as additional installed survey equipment to perform cable tracking.

By using the dynamic positioning system of the vessel, the “live” high-voltage cable was lowered to a maximum depth of three meters.

Location: The Netherlands
Scope: 17 km
Client: TenneT TSO B.V.
Year: 2016

The fleet that made it possible

Njord R

Njord R

Download specifications

Hopper capacity: 6,000m3
Length overall: 111.30m
Breadth: 19.40m
Draught loaded: 7.00m
Draught unloaded: 3.80m
Dredging depth: 35.00/75.00m

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Lillebælt Old Bridge

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Installation of 2,100 tons of rock intended for erosion protection…

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Hanö

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Dredging a 6 km long trench, at water depths differing from -3m to -30m….

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NKT – Noss Head, Scotland

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Floatation channels for offshore installation barges…

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Scope:: 220,000 m3
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