Common Services Tunnel

  • Common Services Tunnel
  • Common Services Tunnel
  • Common Services Tunnel
  • Common Services Tunnel
  • Common Services Tunnel
  • Common Services Tunnel

Proposed Common Services Tunnel (CST) Phase 3A

The Common Services Tunnel 3A being excavated using a bottom up construction technique is a purpose-built tunnel network that will house and distribute various utility services to the 360 hectare waterfront development at Marina Bay including electrical and telecommunication cables, potable water pipes, NEWater, district cooling pipes and a pneumatic refuse conveying system.

The 20km tunnel system is said to be the second of its kind after Japan, constructed at an average depth of 18metres below ground level on challenging marine clay conditions.

Project details
  • Project Title:Proposed Common Services Tunnel (CST) Phase 3A at Downtown Core, Marina
  • Client:Urban Redevelopment Authority
  • Main Contractor:Singapore Piling & Civil Engineering Pte Ltd
  • Excavation Quantity:260,000m3