Calderwood Sewer Pump Station

Ironbuilt Infrastructure is delivering a new sewer pump station for Sydney Water through the Delivering 4 Customers (D4C) alliance in Calderwood, one of the Illawarra’s fastest growing residential corridors.

The pump station is a key piece of permanent wastewater infrastructure designed to service Calderwood’s expanding community for decades. The project involves deep excavation, hard rock conditions and extensive dewatering – all managed concurrently within an active development environment.

Scope of works includes:

• Bulk earthworks to 13m depth including hard rock excavation
• Wet well chamber construction
• Valve pit construction
• Gravity main installation
• Extensive dewatering operations
• Mechanical installation including pump systems
• Rising main pipework installation
• Switchroom building construction
• Ancillary civil works including roads, carports and reinstatement

The Calderwood Sewer Pump Station demonstrates Ironbuilt’s capability to deliver technically demanding wastewater infrastructure in live growth corridor environments – managing complex ground conditions, deep excavation and multi-discipline coordination under a structured alliance delivery framework.