'The new DRL Group will take primary responsibility for all of our work concerned with dredging, reclamation and disposal, said Dr Jane Smallman, managing director of HR Wallingford. 'We have a long history of collaboration with DRL and this acquisition strengthens and enhances HR Wallingford’s capability in dredging services. We are very pleased to welcome DRL to the Company.'

The acquisition brings two stalwarts of the Central Dredging Association (CEDA) together in the same organisation. DRL's director Nick Bray and HRW's technical director Neville Burt have long been colleagues within CEDA, where they have worked together for the advancement of environmental best practice in dredging.

'In all respects the business will continue much as before, said Nick Bray. Joining HR Wallingford allows us to make a number of improvements in key areas, including additional staff capability and a broadening of our technical base. We will also have the ability to draw upon HR Wallingford’s extensive experience and expertise in closely related fields.'

Nick Bray will continue in his present role as director of DRL and will be joined as a director by HR Wallingford’s Dr Mike Dearnaley. The DRL Group at HR Wallingford will be managed by Michael Costaras.