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Portfolio Articles

Wollongong Harbour Sunken Yacht Salvage

Portfolio

29 March 2021

CDS were engaged by local government to urgently salvage a sunken steel hull 9m yacht within Wollongong Harbour NSW, Australia.

HST Hull Cleaning – Before and After

Portfolio

5 May 2020

Before and after examples of our exclusive and patented HST Hull Cleaning service performed on various commercial vessels.

Monsters Of The Murky Depths

Portfolio

10 August 1989

Keith Johnson and the team of commercial divers encountered something completely unexpected in the depths of Warragamba Dam.

Commercial Divers Deep Well Surveying

Portfolio

18 November 1977

The Public Transport Commission asked Neil and Keith Johnson to map a maze of wells used in the late 1800's.

Hydraulic Drill Conversion For Core Sampling

Portfolio

5 October 1971

Neil Johnson converted a drill to operate underwater hydraulically for successful ocean floor core sampling in 1971.

Avon Dam Underwater Gate Installation

Portfolio

5 October 1971

Neil Johnson and Keith Johnson replacing gates 60m below at Avon dam plus 95m diving at Warragamba dam in 1971.

Coal Wash Pipeline Extension Into Ocean

Portfolio

19 March 1968

Neil Johnson and team using Hooka line breathing and high compression air tanks to install pipeline into the ocean in 1968.

Port Kembla Underwater Pipeline Installation

Portfolio

30 September 1966

Neil Johnson working on pipelines including excavating, pipe laying, and back filling at Port Kembla in 1966.

Commercial Divers Record Dam Dive

Portfolio

2 April 1964

Neil Johnson with a team of divers make the deepest dives ever in Australia using lightweight equipment in 1964.

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