Project completed: April 2022

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The challenge

  • JF Subtech dive team were requested to recover ten containers that had fallen off a vessel during a storm
  • The project itself was challenging due to the water depth being 47m, 14km offshore
  • Lifting capacity
  • Adverse weather conditions
  • Low visibility
  • Limited diver bottom time
  • Buried containers and debris

The solution

  • Dive team and specialised rigging mobilised to site ahead of tug mobilisation
  • Dive operations undertaken to prep containers and debris including dredging with airlift
  • Install rigging of containers and debris to coincide with tug arrival
  • On arrival, tug take up marker buoy and winch pre-rigged containers/debris from 45m to 6m below the vessel and sail back to port 14km to deposit in wet storage zone
  • 12 voyages undertaken to complete scope with multiple recoveries to tug deck for debris using tug’s 40T winch
  • Wet stored items recovered to quay using land based crane

The results and benefits

  • Operation safely completed over a period of 31 days on all ten containers and debris
  • Anchorage deemed safe for utilisation
James Fisher Subtech
Registered office: Fisher House, PO Box 4, Barrow-in-Furness, Cumbria, LA14 1HR, UK Registered in England No. 103667© 2024 James Fisher and Sons plc