The early concept design considered several pipeline route options, and as the design progressed, a final route was selected in 2006, with a landfall at Holden Point on the Burrup Peninsula.
The shore approach design for the trunkline system included developing engineering solutions to deal with:
- Rough seabeds with exposed limestone rock formations
- Erodible calcareous seabed sections comprising silts and sands, including “glay soils”
- Laying the Pluto Trunkline System close to the Pluto LNG Offloading Jetty under construction, two existing large diameter gas pipelines, a dredged material dumping ground
- The crossing of the NWS shipping channel
- A shoreline comprising igneous hard rock and a major heritage site.