Scarborough Shore Approach Study

Atteris design work included:

• Trunkline route selection
• Shore crossing site visit and assessment
• Selection of construction methodologies for the shore pull, pipeline installation and secondary stabilisation / mechanical protection requirements based on minimising risks and disruptions to nearby facilities and constraints which may be imposed by other stakeholders
• Hazard identification and risk assessment including provision of preventative and mitigation controls that could be considered during design and construction
• Cost and schedule estimates
• Shore crossing site layouts
• Input into proposed geophysical/geotechnical survey campaign scopes of work to ensure sufficient data is available for all design and construction activities.
• Stakeholder engagement (e.g. environmental approvals, logistics etc.)

Key challenges included:

• Pipeline routing through a congested area with large amounts of existing infrastructure (e.g. subsea high-pressure gas pipelines, shipping channels, jetties, anchoring zones etc.) and significant vessel traffic.
• Shore pull feasibility given limited land at shore crossing site and proximity to the Pluto LNG jetty and the Pluto trunkline system