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Work starts on $6.5b deep underground tunnels to transport used water, freeing up land above for redevelopment
The second phase of an underground "superhighway" to transport used water across the island started construction work on Monday (Nov 20).
When completed in 2025, Deep Tunnel Sewerage System (DTSS) Phase 2 will channel used water in the western parts of the island by gravity to a new water reclamation plant in Tuas.
The $6.5 billion project by water agency PUB will also free up 83ha of land - about the size of 116 football fields - currently housing the Ulu Pandan and Jurong Water Reclamation Plants, about 70 pumping stations and many more sewage treatment plants.