Project Summary

The Pioneer Materials Offloading Facility (MOF) at Barrow Island was used to support the construction of the LNG Plant and main wharf. The facility was used to meet the marine transport needs of the plant and service any future expansion.

Madsen Giersing (MG) was appointed by MCMRJV to provide the detailed design and technical support services for the design of the MOF.

The project consisted of the design and construction of three berths (RO-RO, Modular Carrier and Barge berth) with a land backed wharf, small craft landing jetty and navigation leads.

The RO-RO and Modular Carrier berths comprise a back to back jetty consisting of 7 dolphins with interconnecting walkways. The dolphins are steel frame structures with a jacket module placed over 4 or 6 pile groups and grouted in place. The dolphins and walkways were designed to resist an overtopping cyclonic wave.

The small craft jetty has 4 platform levels to allow for personnel to embark / disembark the vessel at various tides.

The navigation leads are monopole structures, each with a platform approximately 20m above sea level. A series of ladders and intermediate platforms provide access to the top platform.

The Gorgon Project is operated by an Australian subsidiary of Chevron Australia and is a joint venture of the Australian subsidiaries among Chevron (47.3 percent), ExxonMobil (25 percent), Shell (25 percent), Osaka Gas (1.25 percent), Tokyo Gas (1 percent) and Chubu Electric Power (0.417 percent).


Barrow Island, Western Australia


Chevron Australia JV


Marine and Civil, Murray and Roberts JV

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