Water Injection Dredging provides a hydrodynamic dredging technique that is both cost-effective and environmentally sound.
Ports, harbours, navigation channels and marinas are continually confronted with siltation, which reduces access. Consequently, dredging works can quickly account for a large proportion of port authorities’ budgets and the pressure to reduce these ongoing costs is increasing. Therefore, maintenance dredging is a necessity for companies operating in these waterways to ensure safe navigation depths in these locations. Planning this dredging work can be complex and daunting without access to the right expertise.
As a company, we own and operate several marinas giving us first hand experience and an in-depth understanding of the requirements of dredging operations. As part of our service we can offer advice and support throughout a dredging project. Our dredgers and team of highly qualified marine engineers, offer water injection dredging which provides a cost effective, environmentally sound dredging method. Given the varied nature of the locations our fleet of dredgers can work in, we price each project individually to offer a competitive quote to meet your individual requirements.
Water injection dredging is one of a number of hydrodynamic dredging techniques, where the basic principle is to remobilise the sediments, using the action of natural currents. Water injection dredging uses water pumps connected to a series of nozzles on a horizontal jet bar. The nozzles inject large volumes of water at low pressure directly onto the sediment build up. This process fluidises the sediment build up, turning it into a density current which remains close to the water bed. The sediments are then picked up by this current and able to flow horizontally out of the channel or port. This process eliminates the need for traditional excavation dredging methods and the subsequent transportation of the dredged material. Nature takes care of the sediment transport, making water injection dredging a cost-effective dredging technique with less impact on the environment.