Marine Shipping Services

Marina Bed levelling

Seabed levelling is a contemporary dredging technique made use of in several ports and harbours. A plough is hauled behind a tug along the seabed levelling high spots and ridges, moving the material to near by reduced places.

Built up material can be eliminated from berths and other hard to reach locations. These can be cleared right into the tidal stream or running area of a trailer suction dredger. The content is transferred from one area to one more along the seabed. The sediment is not raised from the surface of the water.

This has allowed us to undertake diverse contracts. 

The plough is set to the desired elevation over datum.  We use the most recent studies offered. Consistent overlapping reduces runs. These are made to incrementally return the seabed to the needed profile. 

Any material that has been transferred into the fairways or surrounding areas is then repetitively dealt with the ebb tide.  The cut material being borne away in suspension.

Maintenance Dredging

Maintenance dredging creates an integral part of the Commissioners' channel maintenance works. It is essential to the reliable procedure of the artificially pumped and gravity systems.  We dredge silt deposits from network beds. Gradually gutters and drainage channels silt deposits naturally develop in these areas.  As it is brought into them by water circulations.

The steady accumulation of silt and decomposing plant product along the network bed. This stops effective water conveyancing. During heavy rainfall and pumping occasions, material can build up.  It can also make navigating the system tough.

Local authorities should periodically carry out network bed surveys of their waterways. The survey details are outlined and used to help prioritise and programme future upkeep dredging works, where it is required.