Marine Shipping Services

Harbour Dredging

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  • Harbour Dredging
  • Posted date:
  • 14-07-2017
Harbour Dredging

Harbour Dredging

The purpose of port, harbour or marina dredging is to create, deepen or maintain a shipping channel or facility. Capital dredging campaigns are undertaken for new developments or to deepen facilities. Where sedimentation occurs, maintenance dredging preserves water depths.

Dredging is the excavation of sediments and disposing of them at a different location. Material is dug or gathered from the bottoms of rivers, lakes, harbours and the open sea. This is completed via a number of methods, such as a giant scoop or high­ pressure suction.

Various UK waters have been dredged in the past. We are proud to have been a part of this process.

Service Areas:

  • Capital/maintenance Dredging Assessment
  • Waste Hierarchy Assessment
  • Channel Design And Dredge Optimisation
  • Dredge And Disposal Monitoring
  • Habitat Regulations Assessment
  • Consents And Licensing
  • Water Framework Directive Assessments
  • Environmental Impact Assessment (Eia)
  • Contaminated Sediment Assessments
  • Plume Dispersal Monitoring
  • Disposal Site Characterisation
  • Maintenance Dredge Protocol Documents

Dredging is mainly used to either maintain the depth of ports or create new shipping channels. Large vessels require water of a certain depth to access these routes, so dredging is used to ensure they don't run aground.

Sometimes the sediment from dredging is used to "renourish" onshore areas, such as coastal areas subject to erosion. The debris collected is usually a mixture of sand, mud and rock.In some areas, dredging will be used to expand what is essentially a simple jetty. This is land jutting out into the sea.

As projects have become more diverse we have expanded our capabilities. This allows us to be able to offer clients overall project solutions.  

We have a leading position in the UK dredging market. We provide expert advice on all aspects of the dredging industry. Our specialist consultants have kept themselves at the forefront of the latest technological developments in the industry. So we are able to advise clients on matters such as:

  • Optimisation of berth pocket design 
  • The capabilities of the modern large trailing suction hopper dredgers
  • Up to date production calculations and budget costings 
  • Alternative techniques for maintenance dredging such as water injection dredging and risks in different soil types
  • The breakout capacity of the new large backhoe & cutter suction dredgers