Following the decommissioning of the Morton Dam in 1988 due to earthquake risk and the construction of the Wainuiomata Water Treatment Plant in 1993, Wellington’s water infrastructure underwent significant upgrades to enhance resilience and reliability.
In 1988, a new water pipeline was constructed through Wainuiomata and the Hutt Valley, often running parallel to older pipes. The project was designed to strengthen and modernise the water supply infrastructure for the Wellington region.
This pipeline, often referred to as the “green pipe” due to its distinctive colour, was installed throughout the Wellington region to improve the capacity and reliability of the water distribution system.
This modern pipeline plays a crucial role in transporting treated water from the Wainuiomata Water Treatment Plant to various parts of the Wellington region, ensuring a consistent and safe water supply for the community. Its construction marked a significant upgrade in the region’s water infrastructure, addressing the increasing demand and enhancing the resilience of the water supply network.