Subsea Structures

The Ministry of Business, Innovation and Employment entrusted Hayes Metals with the significant task of removing and recycling 1,000 tons of subsea structures from Port Taranaki. This complex project required meticulous planning and execution to ensure safety, efficiency, and environmental responsibility.

Project Scope and Execution

Hayes Metals developed detailed cut plans for downsizing the subsea structures on-site, ensuring that each step was carefully managed. The project involved:

• Managing Energized Equipment: Safely handling and de-energizing equipment to prevent hazards during the removal process.
• Downsizing of Subsea Structures: Significant and complex cutting plans were required to cut the subsea structures for optimal sizing for transport.
• Draining Residual Fluids: Efficiently draining and disposing of residual fluids to minimize environmental impact.
• Removing Marine Growth: Cleaning and removing marine growth from the structures, ensuring they were ready for transport and recycling.
• Loading for Transport: Coordinating the safe and efficient loading of materials for transport to recycling facilities.

Successful Recycling and Environmental Impact

Hayes Metals achieved remarkable results in repurposing and recycling the materials:

• Steel Components: Successfully repurposed steel components, achieving a 100% recycling rate for the remaining steel.
• Concrete Mattress: Fully recycled the concrete mattress, demonstrating our commitment to sustainability.
• Waste Management: The only waste generated was marine growth, which was responsibly sent to landfill, minimizing environmental impact.

Impressive Project Completion

Hayes Metals was initially contracted to complete stage one (380 tons) within four weeks. However, our efficient planning and execution allowed us to finish this stage in just 10 days, showcasing our ability to deliver high-quality results promptly.

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