Ferrycarrig was engaged to deliver pipe installation works at Oran Park as part of the Prospect South to Macarthur (Promac) project for Sydney Water in partnership with Acciona. The scope of work involved excavation and installation of both concrete encased and stabilized sand sections of OD1067 SCL pipe, FRP of cast-in-situ valve chambers, and road pavement works associated with the construction of two new reservoirs at Oran Park.

The proposed bi-directional link between the Prospect South Water Distribution System (WDS) and the Macarthur WDS aims to transfer up to 100 ML/day of drinking water between the systems. This link is crucial for providing trunk drinking water infrastructure to support the anticipated growth in areas such as the South West Growth Area, Western Sydney Aerotropolis Growth Area, Liverpool CBD, and Menangle Park, totaling approximately 84,000 dwellings and 62,000 new jobs.

The project provided infrastructure to service growth in  the new Western Sydney Aerotropolis precinct and South West Growth Area then and in the future, ensuring Sydney Water’s customers would have reliable access to clean, safe drinking water.

Ferrycarrig delivered pipe works, concrete works, and road pavement works relating to the construction of the two 24ML reservoir tanks at Oran Park, which connected to Sydney Water’s existing network in the suburb of Cobbitty, which was part of the Camden City Council area.

Ferrycarrig’s scope of works comprised of the following:

• Excavation and Installation of 2Km of OD1067 MSCL pipe including valve arrangements, air valves and hydrants, steel welded at depths of 6-8m
• Installation of 5 cast-in-situ valve chambers, AICV, and flow meter pits
• Installation of 3 cast-in-situ scour pits
• Excavation and Installation of 300m of stormwater pipes and pits
• Earthworks for supply and placement of a new road Including 476m of kerb and gutter, line marking, fencing, and landscape works
• Jetting and CCTV of newly Installed pipework
• Pressure testing
• Connections Into existing pipework

Key challenges to be overcome included working in a tight corridor, excavating up to depths of 6 meters, and lifting and Installing 12m long OD1067 MSCL pipes with a weight of up to 3.8t. Additionally, works included internal welding of pipe joints under confined  space procedures.