Tuas Port, Singapore - Durable, Low-Maintenance Infrastructure Supporting Green Port Development

Singapore's Tuas Port provides a leading example of how durable, low-maintenance marine infrastructure can contribute to green port development and long-term sustainability objectives. Developed by the Maritime and Port Authority of Singapore (MPA) and PSA Singapore, Tuas Port is being constructed as the world's largest fully automated container terminal and has been designed around principles of resilience, operational efficiency, and whole-of-life sustainability.

A key feature of the development is the use of large reinforced concrete caissons to form quay walls and seawalls. 221 caissons were installed during Phase 1 and a further 227 during Phase 2, creating over 17 km of durable marine infrastructure. Each caisson weighs approximately 15,000 tonnes.

From a sustainability perspective, designing for durability reduces the frequency of future repair and rehabilitation works, thereby lowering whole-of-life material consumption, energy use, greenhouse gas emissions, and marine ecosystem disturbance associated with maintenance activities. By minimizing the need for major interventions over the asset life, the port reduces disruption to operations while improving the resilience of critical trade infrastructure.

The durable infrastructure strategy also supports wider green-port initiatives at Tuas Port, including electrified automated guided vehicles, automated electric yard cranes, digital optimization systems, and energy-efficient facilities. Together, these measures demonstrate how long-life marine infrastructure can underpin broader sustainability outcomes by reducing lifecycle environmental impacts while maintaining reliable port operations.