Previous work undertaken

Bay Underwater Services New Zealand Limited have covered an extensive range of underwater work including the following:

  • Bottom survey inspections
  • Bridge and Wharf demolition
  • Bridge inspections
  • Cathodic protection readings
  • Cathodic protection-eg: Anode placement and replacement
  • Closed Circuit Television Video Surveys and inspections
  • Concrete, grout and epoxies placement, (All aspects)
  • Contamination diving – sewerage treatment plants etc
  • Deep diving using surface decompression chamber and oxygen
  • DOC vessel clearances for Sub Antarctic Islands
  • Dredging and de-watering systems
  • Intake screen repairs and cleaning
  • MPI vessel inspections for entry into New Zealand waters
  • MPI vessel hull cleaning (outside New Zealand Territorial Waters)
  • NDT- Non Destructive Testing
  • Outfall construction/repairs
  • Piling (all forms of piling, sheet piles, casings, Split casings etc)
  • Pipeline and cable laying
  • Pylon repairs
  • ROV- Remote operated vehicle, survey and inspection
  • Search and recovery
  • Ship hull cleaning, repairs, inspections and surveys
  • Ship propeller polishing and repairs (Rupert Scale Polishes)
  • Surface supply air diving with voice communications
  • Tank Inspections
  • Underwater (DIGITAL) Photographic Surveys and Inspections
  • Underwater concreting, grouting and epoxying
  • Underwater construction
  • Underwater Cutting
  • Underwater explosives and demolition
  • Underwater welding
  • Vessel salvage – 200 ton of liftbags (closed and open bags sized from 0.5 ton-10 ton)
  • Vessel supply - vessel, barges, hopper barge excavators, dredges,work platforms and tugs, etc.
  • Wharf repairs and maintenance

Our Certifications