Infrastructure Works at Lower Seletar

Category: Infrastructure

The Lower Seletar Stockpile Site is a 32-hectare storage facility developed by HDB as a national strategic stockpile to strengthen Singapore’s resilience against supply disruptions in construction materials. This project demonstrates rigorous design evaluation and engineering excellence, delivering a cost-efficient, high-capacity storage facility that optimises land use and introduces innovative operational approaches.

The innovative engineering solutions include:

• Contiguous single stockpile arrangement to maximise the available area for storage and minimise the land space needed for internal roads and infrastructure.

• Access points created at multiple levels using the existing terrain to allow easier, safer transport of construction materials and facilitate maintenance.

• Sustainable soil exchange strategy which reuses on-site materials to replace soft ground, reducing imported fill and off-site disposal and carbon emissions.

• Bi-directional unmanned weighbridge system that dynamically switches lanes between inbound and outbound traffic based on operational demands, improving operational efficiency.

• Optimised approach of using open-cut multi-tier stockpile layout, where excavated material is stacked in stepped levels and supported by a retaining system to maintain ground stability and prevent soil movement towards the adjacent reservoir.

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