Tauranga Southern Wastewater Pipeline

Type of project: Wastewater Infrastructure

Client: Tauranga City Council
Location: Tauranga, North Island, New Zealand
Completed in: 2018

The scope of the Tauranga Southern Pipeline included design and construction of a major wastewater pipeline between Memorial Park Pump Station, across the Tauranga Harbour to MaTauranga Southern (Wastewater) Pipeline on the North Island of New Zealand.

The purpose of the pipeline was to relieve the burden on the city’s sewage treatment plant, allowing it to improve its performance. The harbour pipeline was HDD drilled at a depth of 40m under the seabed.

• Approximately 1570 meters drilled from Memorial Park to Matapihi.
• A 1500mm outer casing was driven in on both sides of the Harbour.
• A 1000mm steel casing was installed by HDD, to accommodate an inner 800mm PE pipe.

Project works included all required support activities; construction and maintenance of launch pit and work area; provision and transportation of consumables, material and equipment