Refloating, lifting and wreck removal

Refloating, lifting and wreck removal

The capacities of Negri equipment allow to lift parts up to 200 tons. These tools, as well as the professionalism of the crews who operate them, have made it possible to lift many wrecks and to install many heavy and bulky loads. Floating...
Dredging and reclamation

Dredging and reclamation

Dredging is a fundamental activity for the maintenance of wharves and marinas. With our equipment (CSD dredger, pontoon cranes and barges) we intervene for the cleaning of wharf legs, maintenance dredging of marinas, maintenance dredging of commercial ports and...
Outfall and cable laying

Outfall and cable laying

A pipe of up to 3 metres in diameter, it is installed on the shore to allow the suction or discharge of water. It is used in thermal power stations, water treatment plants or desalination plants. Negri controls the entire chain from design to installation, reception...
Underwater work

Underwater work

The history of the Negri company is closely linked to Underwater Works. Essential to the execution of marine works, our divers control and analyze the progress of our works. We are particularly involved in underwater cutting yards for the removal of wreckage or port...
Offshore geotechnical investigation

Offshore geotechnical investigation

With its know-how in the construction of maritime structures, our team of experts and seamen participate in investigations and the recommendation of the most appropriate solutions in terms of maritime geotechnics in mainland France, overseas and Africa. The use of a...