Jan De Nul Group orders 30,500m³ hopper

On the 3rd of July, Jan De Nul Group and La Naval shipyard in Bilbao, Spain, have signed an agreement for the construction of a 30,500m³ hopper dredger.

This vessel completes the present investment program for hopper dredgers, ranging from the 46,000 m³ mega hoppers Cristóbal Colón and Leiv Eiriksson down to the 3,400 m³ Alvar Nuñez Cabeça de Vaca and Sebastiano Caboto.

The new vessel is specifically designed for operation in shallow or confined waters, having a design draught of only 11 m and a length between perpendiculars of only 161.5 m. In the design much attention has been given to efficient use of the installed power, resulting in a low fuel consumption, and lowered emissions. Two suction pipes, diameter 1,200 mm, equipped with submerged dredge pumps of each 3,400 kW are installed. Double walled, electrically driven shore discharging dredge pumps with a total power of 15,000 kW will enable discharging the load at a high rate, over long distances.

The Jan De Nul Group fleet already offers the extraordinary capabilities of the 46,000 m³ vessels. It is now complemented with a ship eminently suitable for operation in shallow waters.
This will enable Jan De Nul Group to offer economic solutions for any major project, even when draught or size limitations are present.

The vessel will be delivered by the end of 2010. An option for a second identical vessel has been agreed on.

Main characteristics:

Hopper capacity: 30,500 m³
Deadweight: 54,140 tonnes
Length o.a.: 183.2 m
Breadth: 40.0 m
Maximum dredging depth: 93.5 m
Draught loaded: 11.10 m
Suction pipe diameter: 1,200 mm
Pump power (trailing): 2 x 3,400 kW
Pump power (discharging): 15,000 kW
Propulsion power: 2 x 10,800 kW
Total installed diesel power: 23,600 kW
Speed: 16 kn
Accommodation: 42 persons