Boskalis’ Water Injection Dredger Terra Plana Launched

Boskalis’ new water injection dredger Terra Plana was successfully launched at TBG Harlingen – Thecla Bodewes Group shipyard last month.

Two companies signed the contract for the construction of the Terra Plana on June 3, 2015 and the actual work on the dredger began in September 2015.

Water injection dredgers are often used in small, shallow ports and marinas because they have good manoeuvrability and can dredge very close to embankments and quay walls.

An injection beam located underneath the vessel injects large volumes of water under low pressure into silt or fine sand in order to resuspend it.

The sediment mixture turns into a density current, which is then removed with the help of gravity.

Main characteristics of the Terra Plana:

  • Length overall – 39,8 m;
  • Length b.p.p. – 35,93 m;
  • Breadth – 12 m;
  • Moulded depth – 4,1 m;
  • Design draught – 3,0 m;
  • Max. dredging depth – 30 m;
  • Min. dredging depth – 3 m;
  • Total installed power – 3.423 kW;
  • Jet pump output – 12.000 m³/hr;
  • Navigation speed – 11 knots;
  • Dynamic positioning system – Navis;
  • Main engines – 2×746 kW (Caterpillar).

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3rd International Congress Hydraulic Engineering Structures and Dredging

Russia’s leading maritime industry Media Group PortNews (www.portnews.ru) holds a traditional annual Congress “Hydraulic Engineering Structures and Dredging” in Moscow. 

The two-day Congress includes the 7th International Forum of Dredging Companies and the 3rd Technical Conference “Modern Solutions for Hydraulic Engineering”.

Infrastructure development is among the real sources of Russia’s economy growth. Construction of port facilities and new hydraulic engineering structures on the country’s inland waterways constitute an essential part of all infrastructure projects. It is important to take into account the best international practices to implement these projects effectively.

The program of the Congress will be devoted to the latest technologies for dredging and hydraulic engineering works. Speakers and delegates will refer to real projects to discuss specifics features of dredging works, as well as dedicated fleet and equipment involved.

To learn more about event, please, contact the organizing committee: snitko@portnews.ru

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