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Double Dutch make Croatian clean-up

14 May 2009
'Cormorant' is seen removing a section of the sunken drydock from the Croatian shipyard

'Cormorant' is seen removing a section of the sunken drydock from the Croatian shipyard

Dutch towage and salvage salvage operators Multraship Salvage and Mammoet Salvage have successfully completed the removal of the wreck of a floating dock which sank in June 2007 at the Viktor Lenac shipyard, Rijeka, Croatia.

The 165m Floating Dry Dock No. 7 weighed 7,000 tons and sank in 22m of water after an electrical power supply failure. Two previous refloating attempts had failed and after a thorough survey and testing of tanks it was decided that refloating of the dock was not feasible. As the sunken dock was impeding access to the yard's other dock, the yard placed a wreck removal contract with Multraship and Mammoet.

The companies worked together to cut the wreck into 24 main pieces, each weighing up to 440 tons. Divers performed over 5km total length of underwater cutting work. Multraship's floating sheerlegs ‘Cormorant’ was then used to lift the sections out.

The 24 strong team began work under the leadership of Multraship project manager Paul Verschure and Mammoet salvage masters Jan Kalkman and Daniel van der Zwaan 8 January and completed the job by 10.

Leendert Muller, managing director of Multraship said, ‘This is a good example of the best of wreck removal in action. The cooperation between our companies to share resources meant we had the right teams and equipment on site quickly. But it still comes down to really hard work by the divers, and to skilful planning and coordination for the lifting. It's a big job, and a good job well done.’

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