Maintenance dredging, port upgrades and new harbour builds are increasingly important to ongoing economic activity in Africa. Underwater Surveys has a keen focus on port and harbour breakwater surveys as well as pre-dredge and post-dredge surveys. Our high-resolution multibeam echosounder survey capability ensures harbours are safe of navigation hazards and meet design depth specifications.

It is important to establish an accurate measure of dredging volumes, because dredgers charge per cubic metre dredged and a discrepancy in the amount invoiced versus the actual amount dredged should be avoided.

We have done a lot of work to enhance the safety of navigation. In some cases a port survey in the developing countries has increased the usability of the port, as well as lowered the insurance premiums for internationally registered vessels entering the port.


  • Port Clearance and Debris Surveys
  • Harbour Breakwater Surveys
  • Pre-Dredging, Post-Dredge Surveys
  • Aids to Navigation & Demarcation

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UWS MBES Harbour Wall