Maintenance Dredging Project Moves Forward at Port of Cape Town

Grab hopper dredger Italeni, Image source: TNPA

Transnet National Ports Authority’s (TNPA) Dredging Services division has embarked on a $1.1 million maintenance dredging campaign at the Port of Cape Town to restore the design depths inside Duncan dock.

The maintenance dredging program, which began on 8 March 2017, is scheduled for completion by the end April 2017.

The main objective of the dredging campaign is to ensure the Port of Cape Town provides safe navigational channels and berthing facilities for shipping by restoring the original design depths, TNPA said.

Two dredging vessels, the trailing suction hopper dredger Isandlwana and the grab hopper dredger Italeni have been mobilized by TNPA Dredging Services for this purpose.

Multi-beam bathymetric surveys are conducted at regular intervals throughout the campaign that will ensure all areas within Duncan Dock are restored to their original design depths.

With 4.200m³ hopper capacity, Isandlwana will remove approximately 70.000 m³ of material from the sea bed before the end of April. Spoil is pumped into the hopper and can be offloaded by discharging through 10 conical bottom valves, the company said.

Pumping ashore is also possible by means of either a floating pipeline, a side discharge mechanism or by ‘rainbowing’, where the dredging vessel discharges material that has been claimed from the ocean floor in a high arc to build a land mass elsewhere, such as during nourishment of beaches, to prevent erosion along the coasts or to reclaim land.

TNPA’s fleet renewal program has boosted the dredging division’s capacity to aid the removal of approximately four million cubic meters of excess material from the seabed every year at South Africa’s ports, the company said.

 

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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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