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Next generation dredger design developed by CEMEX, Damen and LR

On 19 March 2018 CEMEX UK has signed a contract with Damen Shipyards Group to build the first in a new generation of Marine Aggregate Dredgers, with Lloyd’s Register (LR) providing classification for the vessel.

The innovative design offers greater efficiency, environmental credentials and the ability to transport approximately 15 per cent more load when compared to CEMEX’s current dredger.

With the capability to extract sand and gravel from the sea bed at depths up to 55m, this vessel has been designed to maintain operations in North Sea conditions.

It is the first new dredger CEMEX has commissioned in 20 years and represents a step-change in dredging technology for the company.

LR provided integral support to Damen during the design concept stage, optimising the dredger to maximise payload through structural efficiency. The dredger will also benefit from no ballast operations, helping to deal with increasing environmental concerns around biosecurity.

The vessel design also meets LR’s ECO notation requirements that recognise the increased environmental drivers influencing modern dredging and the evolution of dredging designs.

High levels of crew and accommodation comfort not usually associated with aggregate dredging will be also be provided through LR notations.

Additionally, LR has provided assistance with statutory challenges, taking a proactive approach on regulatory engagement.

One example related to vessel coaming height and the application of the DR68 International standard – this is normally only applicable to hopper dredgers but based on LR support Flag agreement has been obtained through an agreement with the MCA.

Mark Williams, Fleet Engineering Manager, CEMEX UK, said: “With the challenge of delivering an innovative modern aggregate dredger to meet the future business requirements of CEMEX Marine, partners with the same philosophy were essential. With the long-established relationship, the diverse specialist ship portfolio, focus on client requirements and pragmatic approach, LR proved to be an ideal partner.”

A representative from the Damen Design & Proposal Team said: “It’s in the Damen DNA to embrace a challenge and this vessel, which includes a number of never before seen features, is a good example of that. To reach a higher standard we have worked in a close and efficient co-operation with the owner and LR to achieve our goals with this design.”

The steel cutting will take place later this year and the vessel is expected to be delivered at the end of 2019.

Ships Montly - January 2024

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