Water Injection Dredging provides a hydrodynamic dredging technique that is both cost-effective and environmentally sound.

THE PROBLEM

Ports, harbours, navigation channels and marinas are continually confronted with siltation, which reduces access. Maintenance dredging is a necessity for companies operating in these waterways to ensure safe navigation depths in these locations.

THE SOLUTION

Our dredger and team of highly qualified marine engineers, offer water injection dredging which provides a cost effective, environmentally sound dredging method. As a company, we own and operate two marinas giving us first hand experience and an in-depth understanding of the requirements of dredging operations.

THE METHOD

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 is then 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.

THE BENEFITS

• Cost effective method of dredging
• The natural method used, ensures it is an environmentally sound solution and creates a considerably lower CO2 footprint compared with conventional dredging.
• Dredging can be carried out in shorter timeframes as the small vessel size means it is easy to mobilise and transport and has great manoeuvrability and can access hard to reach areas close to embankments and quay walls.