Suction dredging of the Mines Seleine navigation channel
Grande-Entrée, 2014 – After winning a 10-year contract with Mines Seleine, a division of K+S Windsor Salt Ltd., Ocean Dredging DS performs periodic suction dredging work in the mine’s access channel. During each dredging period, approximately 150,000 m³ of sand is sucked up from the seafloor, moved and submerged at a deposit site determined by the client.
Between 5,000 and 10,000 m³ are pumped by the OCEAN TRAVERSE NORD dredge and piped into a basin located on the site to be used to restore eroded banks. Part of this sediment is also used to provide a local sand merchant.
The trailing suction hopper dredge OCEAN TRAVERSE NORD takes approximately 50 days to perform this maintenance work every two years. To ensure the accuracy and environmental compliance of the operations, bathymetric surveys are regularly conducted.