Surveys / Inspections
Bay Underwater Services NZ Ltd regularly completes surveys on international ships passing through various port around NZ and the Pacific Islands. Our company also completes MPI vessel clearances for entry into New Zealand waters and DOC clearances for the Sub-Antarctic Islands.
Some of the services that we can supply are:
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- Class surveys – Class NK, Lloyds, Bureau Veritas, ABS, DNV GL
- Vessel inspections for Class Surveys and entry into NZ waters
- MPI Hull inspections and cleaning for bio security clearance in NZ waters
- Ship hull inspections and surveys
- Live closed circuit TV video inspections and surveys
- Underwater digital photographic surveys and inspections
- Hydro dam inspections / maintenance
- Sewerage treatment plant inspections / maintenance
- Clean water supply tank inspections / maintenance
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Bay Underwater Services NZ Ltd has completed various repairs on ships including:
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- Anode installation
- Non destructive testing
- Bathycorometer Cathodic Protection (CP) readings
- Magnetic Partical inspection (welds)
- Oil leakage detection (Dual MPI unit)
- Damaged propeller cutting, trimming, and balancing
- Propeller change-outs in water
- Damaged hull plate removal and replacement
- Underwater welding with certified divers to class standard
- Seachest grill removal, replacements and cleaning
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Marine Construction
Bay Underwater Services NZ Ltd has completed an extensive range of marine construction and commercial diving projects over the last 26 years. See a list of some of our services below:
- Vessel inspections for Class Surveys
- MPI Hull cleaning for bionsecurity clearance
- Deep diving using a decompression chamber and oxygen
- Surface supply with voice communication
- Wharf repairs and maintenance
- Wharf extensions and refurbishment
- Underwater construction
- Piling – all forms – sheet piling/casings/split casings etc
- Concrete – grout, epoxy, and placement
- Pipeline and cable laying
- Outfall construction and repairs
- Underwater cutting
- Underwater welding
- Underwater explosives
- Pile and Pylon repair systems (engineer designed and load ratings)
Marine Demolition
Bay Underwater Services NZ Ltd has several staff authorised and trained in the use of explosives for Marine Demolition projects. We have also been involved in the refurbishment of several large structures around New Zealand.
Some of the specialised services that we can supply are:
- Blasting channels
- Underwater cutting
- Underwater welding
- Underwater explosives
- Sinking vessels for underwater reefs
Sub Sea Salvage
Bay Underwater Services NZ Ltd has been involved in several search and recovery operations including vessels and aircraft. We have also been involved in the unfortunate case of personal searches for lost bodies.
Some of the items we have searched for include:
- Un-manned vessel location and recovery
- Aircraft recoveries in the ocean
- Vessel recovery and oil recovery
- Body searches
- Chopper salvage
- Sinking vessels for artificial reefs
Vessel and Barge Hire
Bay Underwater Services NZ Ltd has various sizes of vessels available for hire including but not limited to:
- Dive works – 7m front opening landing vessel / platform
- Te Awaroa – 16.9m aluminium boat with large deck area
- Reel Time – 7m profile boat for working in smaller areas
- Piling frame for pile driving
We also have access to various other vessels depending on your requirements
