For the international port and shipping industry, on a world-wide scale, and acting with expert colleagues, SEMASO offers turnkey services realising optimised modern sediment management solutions to individual muddy ports, port groups and national governments.

This spans selecting an appropriate solution, organising tests and trials to prove it, recommending ideal monitoring instrumentation etc. SEMASO falls back on long term experience it’s team gained in some of the world’s biggest shallow water muddy ports – Rotterdam, Hamburg, Antwerp, Hong Kong, Delfzijl, Emden and Leer.


Geotechnical support and supervision during the execution of the fieldwork

Reporting and presentation of the laboratory results

Project management during different phases of implementation and feasibility

Active Nautical Depth (AND)(Download Case study)

Passive Nautical Depth (PND)

Auto-flushing systems

Keep Sediments Navigable (KSN) (Download Case study)

Entrance Flow optimisation Structures (EFOS)

Underwater fluid mud pump (KSO & KSM) (Download Article)

Sediment dredging and reclamation

Physical and technical properties of sediment (e.g.: ripening, erodibility and consolidation)

Increase in Nautical depth