Our fleet of water injection dredgers are able to work in a wide range of settings, including ports, harbours, navigation channels and marinas to remove siltation build up. Our experienced dredging services team are creative problem solvers who are able to finesse our dredging strategy to suite a wide variety of locations and situations.
About Water Injection Dredging
Water injection dredging, as a type of dredging method, remobilises sediment using the action of natural currents. It 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 area being dredged.
This dredging 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.
Benefits: Why Choose Water Injection Dredging?
- Cost-Effective: By using water to mobilize sediments, WID reduces the need for expensive extraction equipment and minimises downtime, making it an affordable solution for both large and small-scale dredging projects.
- Minimal Environmental Impact: Water injection dredging is a non-invasive technique, reducing the disturbance to aquatic ecosystems. It avoids the use of dredging techniques which can disrupt marine life and sedimentation.
- Improved Efficiency: This dredging method can quickly and effectively dredge fine materials, like silts and muds, without creating excess turbidity or siltation that can harm water quality.
- Low Carbon Footprint: With minimal machinery and reduced transportation requirements, water injection dredging offers a more energy-efficient alternative that lowers carbon emissions compared to conventional dredging techniques.
Uses of Water Injection Dredging
- Marina dredging
- Underneath jetties and moored vessels
- Alongside quay walls
- In locks
- Inland waterways/canals
- Culverts
- Access channels
- Flood prevention
- Increasing depths for ship berthing
- Wind farm installations
- Levelling the water bed for pipelines and tunnel sections
- Increasing the depth of pipelines and cables
Our Water Injection Dredging Vessel Fleet
Road transportable, versatile and environmentally friendly water injection dredgers
Innovation
- Fully road transportable
- 11.5 tonnes in weight
- Quickly deployed with a crane or boat lift
- Length ~ 9.58 meters
- Width ~ 3.9 meters
- Draft ~ 1 meters
Coming soon...
- Excellent manoeuvrability in confined spaces
- Length ~ 12 meters
- Width ~ 4 meters
- Draft ~ 0.8 meters
Environmental Benefits of Water Injection Dredging
Water injection dredging (WID) is an eco-friendly alternative to traditional dredging, moving sediment with minimal disruption to the ecosystem. Key environmental advantages include:
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Controlled Sediment Distribution: Most sediment settles in lower water layers, reducing re-suspension and protecting water quality.
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Natural Transport: Sediment is carried by existing currents, integrating smoothly into the ecosystem.
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Ecosystem Restoration: Faster sediment deposition helps maintain natural sediment dynamics and supports aquatic health.
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Adaptive Sedimentation: Sediment settles in harmony with changing tides, currents, and seasonal conditions.
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Sustainable Disposal: Sediment remains in the ecosystem rather than being removed, enhancing the dredging process’s environmental sustainability.
