Projects
The following is a short list of some of our satisfied customers and a brief description of the major projects undertaken by Gray Diving Services in recent years.
United Salvage Consortium
Supply of diving and salvage personnel for the salvage of major shipping casualties including "Anro Asia", "Nella Dan" (Antarctica) "Iron Baron, "Gabriella", McDermotts D.B 20. Macci Jet Trainer, Dakota DC3 etc.
Royal Australian Navy
Construction of Deep & Shallow Degaussing Ranges in Sydney Harbour. Installation of Radiated Noise Range at Thistle Island S.A. for the Collins Class submarines. Logistic support for trials of closed circuit mixed gas deep diving equipment.
Bahrain Petroleum Company
48" Pipeline installation project off Bahrain. UAE
Dept of Water Resources
Underwater construction projects and period maintenance of dams throughout N.S.W.
Batangas Oil Co.
Major structural repairs to Cyclone damaged oil terminal wharf in the Philippines.
Indonesian Government
Major Jetty construction using underwater Welding Techniques
S.N.T.C.
Major dredging works in Botany Bay.
Tropical Reef Enterprises
Construction of 2000 ton Slipway in Cairns.
I.H.C. Holland
Installation & maintenance of S.B.M Terminal in Botany Bay.
Caltex Refining Ltd
Major pipeline installation in Botany Bay (Banksmeadow Lines).
Ham/Westham
Major dredging works in Botany Bay.
Harris Daishowa
Installation of 36 tonnes of retrofit anodes to wharf structure at Twofold Bay, using wet welding process.
Boral Gas
Installation of sub-marine loading terminal facility at Botany Bay.
Aust Construction Services
Construction, maintenance & inspection of wharves, slipways and marine infrastructure in Sydney Harbour for Dept of Defence.
Maritime Services Board
Material evaluation survey of steel piles at Bulk Liquids Terminal, Botany Bay.
Sydney Ports Authority
N.D.T inspection and wet weld repair of 1200 mm steel piles, Botany Bay prior to 200 tonne post tensioning. Period contract for diving maintenance 2000-2008
Capital Planning Authority
Hyperbaric weld repairs to high pressure pipeline, Canberra.
Kilpatrick Green
Installation and burial of fibre optic cable in Darwin Harbour. Installation and trenching of 200 kva power cable Indonesia.
Caltex Refining Ltd
Period contract for repairs & maintenance of marine infrastructure associated with Kurnell Oil Refinery & sub-berth facility since 1960.
Mobil Refining Australia
Period contract for repairs, maintenance and diving support of S.B.M. and marine infrastructure associated with Port Stanvac Oil Refinery S.A.
Dept of Water Resources
Major construction program at Hume Dam associated with remedial safety program. 1994-2000.
Caltex Refining Ltd
Stabilization and Scour protection of pipeline end manifold in Botany Bay .
Commcord Australia
Repairs to sub-marine fibre optic cable in Darwin Harbour.
Department of Public Works
Safety Audit Inspections of dams, weirs and locks throughout N.S.W.
Enetech Streamline Pty. Ltd
Installation of temporary baulks & stoplogs including concrete & steel support structures associated with the upgrading of the sluice gates at Hume Dam. (2 year period)
Maunsell Ltd
High pressure water blast cleaning and ultrasonic testing of 1km of sheet piling at Brotherson Dock, Port Botany.
Australian Transport Safety Bureau
Mixed gas inspection dives to video & gather evidence following the running down of a trawler by a merchant ship in 70 metres of water.
Barclay Mowlem Pty. Ltd.
Installation of new trunnion intake structure as part of the upgrading of Ben Chifley Dam at Bathurst. This 9 month project was completed late 2000 and involved the excavation of marine sediment and installation of over 100 tons of structural steel as part of the $50 million upgrade of the dam.
Road Transit Authority
Underwater structural inspection of road bridges in the Metropolitan, Northern, Western, Southern, Illawarra and Hunter regions. This work involved visual and video inspection, non-destructive testing, core sampling and reporting on over 200 bridges.
Snowyhydro Ltd
Removal of submerged 22 ton inlet gates on Eucumbene and Tooma inlet tunnels at Tumut Dam. This was the first time the gates had been removed since installation in 1959.
Statewater
Detailed structure inspections at several major Dams in the North West of the state, utilising R.O.V. and Mixed gas deep diving techniques.