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Concordia Damen Converts Inland Shipping Vessel into TSHD

Maritime Activity Reports, Inc.

September 19, 2023

Source: Concordia Damen

Source: Concordia Damen

Concordia Damen recently delivered a special project that involved the conversion of a Dutch barge into a Nigerian dredger. The trailing suction hopper dredger (TSHD) Sayonara has now arrived and is at work on the Lagos Lagoon.

Three years ago, the Werkendam shipyard came into contact with a Nigerian dredging company via Damen Shipyards Gorinchem. This eventually led to the start of the complex conversion project in December 2021. After extensive testing to ensure that the vessel, once in Nigeria, would not experience any teething problems, Jumbo-SAL-Alliance's HLV Fairplayer transported the special TSHD to the customer in Lagos.

Converting an inland shipping barge instead of building a new-build dredger has several advantages, according to the yard. Both because of the fast delivery time and because this method simply saves money at the bottom line, it is a very attractive option for dredging businesses.

Additionally, all the dredging equipment is supplied by Damen Dredging - the same installations that are usually fitted in newbuilds. These include a 500mm trailing suction pipe, gantries, winches, the dredge pump and valves. The refitted TSHD has a capacity of about 1,400m3.

To create the necessary space for the dredge pump - with drive and various dredging pipes - Concordia Damen cut the Sayonara in half and extended it with 7.5m and a special pump chamber.

Through close cooperation with several trusted suppliers, including, for example, system integrator Werkina Werkendam, the conversion of the inland TSHD has been a success.

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