Name:

St Mary’s WWTP – Northern Slabs

Client:

Sydney Water

Value:

$9.4m

Scope:

All civil works associated with Biosolids Stream upgrade

• Install piles for structures
• Install Water, Power, Comms, Sludge, Drainage and various chemical lines under the structures
• Install foundations & footings for:
  • Sludge Screening Facility
  • Pre-dewatering building
  • Pre-dewatering FAT tanks
  • Thermal Hydrolysis Feed Facility
  • THP Silo
  • Waste Gase Burner
  • Electrical transformer & switch room
• Supply & install structural steel
• Reinstate

Challenges:

• Working inside an operating treatment plant,
• Liaising with plant operators for shutdowns & tie-ins to ensure the plant remained operational
• Services locating to ensure existing infrastructure was not impacted.

Finished