Design and construction of one very high and cyclone proof communications tower a great success for the Western Australian economy.
The Gorgon gas project is a natural gas project in Western Australia, involving the development of the Greater Gorgon gas fields, subsea gas-gathering infrastructure, and a liquefied natural gas plant on Barrow Island.
The project is a joint venture between the Australian subsidiaries of Chevron (the operator), ExxonMobil, Shell, Osaka Gas, Tokyo Gas and Chubu Electric Power.
A very high and cyclone withstanding communications mast was identified by Chevron as a key piece infrastructure to link telecommunications systems on Barrow Island (Located 50 kilometres northwest off the Pilbara coast of Western Australia) with mainland Australia as well as providing interconnection to the various facilities on Barrow Island and drilling platforms within the Gorgon field.
Global engineering specialist Kentz was contracted to Chevron as the main telecommunications infrastructure provider. Kentz subcontracted the design, procure and construct of the critical 120m Communications Main Mast to Kordia.
Kordia was selected for these works based on its proven expertise in designing and constructing significant steel structures in both the telecommunication and broadcasting industries.
Barrow Island presented numerous challenges to the Kordia mast design team, designing a site specific structure to withstand cyclonic wind conditions, located within a permanent “A-class” reserve, the highest level of conservation protection available for Crown land in Australia. Additional considerations included purpose built foundations and guy anchors to minimise ground disturbance and furthermore ensuring that the structure lighting didn’t impact the Flatback sea turtle breeding colony. Deploying to Barrow Island brought with it strict quarantine requirements to preserve the natural fauna and biodiversity on the island.
Safety was the prime consideration on this project and Kordia completed in excess of 1500 Take Five Safety inspections and the works were completed with no LTI’s being recorded with over 7800 man-hours.
Kordia developed a site specific lifting procedures using an engineered Gin Pole that was capable of lifting entire structure modules. This method of procedure was unique without any precedence according to the Australian Standards for this type of operation. Kordia worked very closely with Workcover WA to ensure all safety risks were managed correctly to ensure a safe result.
Construction of the 120m communications mast was a great success. Now the Gorgon gas project and Western Australia has a communications system which supports economic growth and energy security in Australia for years to come.
Kordia is proud to have been part of the Gorgon Project and that its engineering and construction expertise resulted in the delivery of the communications main mast works to the agreed schedule.