Mardi to Warnervale Water Pipeline

Type of project: Water Infrastructure

Client: Central Coast Council
Location: Mardi/Warnervale, NSW, Australia
Completed in: 2021

The $39 million Mardi to Warnervale Project comprised the construction of an 8.9km DN1000 water pipeline from the Mardi Water Treatment Plant to Sparks Road in Warnervale; crossing road reserves, council land, private land and sensitive environmental areas demanding the use of trenchless technologies.
The Mardi to Warnervale Pipeline was made up of a multitude of intricate engineering projects split into twenty-three different sections. Key to this success was drawing from the joint venture’s strengths such as the pipeline expertise and experience of Spiecapag, trenching and HDD activities of their subsidiary HDI Lucas, along with Seymour Whyte’s experience in subcontractor management, roadwork, brownfield roadworks, traffic control covering the thrust bore, civil and structural activities.

The project was key to securing the future water needs of the Central Coast community. It will service projected expansion in the major northern growth corridor including Warnervale Town Centre and surrounding greenfield subdivision sites. It will also enhance bulk water transfers between the Central Coast and the Hunter Region, enabling better planning for future water resourcing and helping both regions better manage potential future drought conditions.