The new sewer pipe to support the expanding Mernda and Doreen communities.

YARRA Valley Water has completed the $34 million Doreen to Diamond Creek Sewerage Project to upgrade the sewer network supporting Melbourne’s fast-growing northern suburbs.

Almost 10 kilometres of new sewer pipe was built under parks and roads as well as supporting infrastructure including a new high flow pump station.

Yarra Valley Water’s general manager growth futures Chris Brace said the project, which runs around Yan Yean and Ironbark roads, would service properties in the rapidly expanding Mernda and Doreen areas.

“It will ensure the reliability of the sewerage system and reduce the likelihood of sewage spilling into the environment during heavy rain,” he said.

“We’ve worked with our delivery partners, MFJ Constructions and Jaydo, to deliver the project, which is among the top 10 projects we’ve committed to complete for our customers.”

Mr Brace said special care had been taken throughout construction to save trees and avoid disrupting areas of cultural sensitivity, including a large stone tool artefact scatter near the Plenty River.

The project included the use of trenchless drilling technology to reduce excavation, protect more vegetation and minimise disruption to the community.

“Design partner Jacobs also salvaged almost 400 artefacts at the start of construction and we worked in partnership with the Wurundjeri Woi Wurrung Cultural Heritage Corporation to sensitively repatriate them,” Mr Brace said.

“Our approach to this project is a great example of our commitment to care for customers, the community and environment while providing vital sewerage infrastructure where it’s needed.”

The project also included the resurfacing of Murray Road to reduce dust and construction of a two kilometre shared use path to improve public access in the Plenty Gorge parklands.