The works on the Ichthys Landfall Crossing project consisted of the construction of hard-standing areas for rock stockpiling and wet buckle operations in a woodlands area and the design and construction of a cofferdam and open trench in a tidal area of soft soils and mangrove vegetation to allow for the pipe pull.
Once at the shoreline Geomarine designed and constructed a 500m long steel pile cofferdam extending into Darwin Harbour, meeting up with the dredge pocket prepared by others. We also carried out excavation and preparation of the trench required to float the Gas Export Pipeline (GEP) into place.
These works were undertaken on very tight timescales due to the limited availability of the marine plant installing the GEP and required close coordination with our client.