Our Projects

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South West Priority Land Release Area (SWPLRA) – Water Infrastructure

Sydney, New South Wales

Gas Mains Replacement Adelaide

Chambers Flat Pump Station

Chambers Flat, Queensland

Singleton Town Centre Revitalisation Part II

Hayes Hill Branch Gravity Sewer

Melbourne, Victoria

Beecroft and Carlingford Roads Intersection Upgrade

Sydney, New South Wales

40 Year Video

McLachlan and James Street Intersection Stormwater Upgrade

Brisbane, Queensland

Bromelton Trunk Water Main

Bromelton, Queensland

Powells Creek Naturalisation

Marburg Range Repair Project

Marburg, Queensland

Refresh Woolloomooloo

Sydney, New South Wales

Sydney Park to Haymarket 330kV Cable Circuits

Sydney, New South Wales

Singleton Town Centre Upgrade

Singleton, New South Wales

Adelaide CBD Mains Replacement Program

Adelaide, South Australia

Grey Street Sewerage Pump Station Project Update

St Francis of Assisi Primary School - geothermal installation

Glendenning, New South Wales

Murarrie Looping Project

Brisbane, Queensland

Elara Estate: Western & Northern Gravity Sewer Lead-Ins & Sewer System Works

Marsden Park, New South Wales

Greenhill Road Gas Pipeline

Adelaide, South Australia

Marsden Park Pressure Sewer

Tarro to Shortland - Trunk Watermain

North West of Newcastle, Australia

Scott Street Dandenong Gas Main Renewal

Dandenong, Victoria

Somerton Road Branch Gravity Sewer

Melbourne, Victoria

Safety comes first at Diona

Singleton Sewage Treatment Plant – Ultraviolet Disinfection System

Singleton, New South Wales

Assisi Catholic College Solar Installation

Diona Melbourne

Marsden Park Pressure Sewer

North West Sydney, New South Wales

St Marys Wastewater Central Precinct

Great Western Highway Safety Upgrade: Blackheath

Blackheath, New South Wales

Tanunda Gas Pipeline

Tanunda, Australia

Literature Lane Gas Main Relocation

Melbourne, Victoria

Siena Catholic College - geothermal installation

Sippy Downs, Queensland

Hayes Hill Branch Sewer

Chetwynd Street Lift Pump Station Civil & Mechanical Works

Loganholme, Queensland

Logan Reserve 110kV

Logan Reserve, Queensland

Strategic Infrastructure Delivery Partner Agreement - Unitywater

Powells Creek Naturalisation Project

Peakhurst Substation

Sydney, New South Wales

Refresh Woolloomooloo

Rochedale Water Infrastructure Upgrade

Brisbane, Queensland

Lilydale Gas Pipeline

Lilydale, Victoria

Eastern CBD 11kV Cable Project

Johnstons Creek Timelapse

APA Mains Renewal Program - Fitzroy Stage 3

Melbourne, Victoria

Rozelle STS Expansion and Associated Civil Works

Upskilling our future workforce

Kilcoy Water Main Augmentation

Kilcoy, Australia

North West Growth Centre Wastewater Transmission

Box Hill, New South Wales

Picnic Point to Haymarket – 330kV cables

Sydney, New South Wales

Grey Street Pump Station

Hay Street Substation

Sydney, New South Wales

Bilpin Overtaking Lane

Sydney, New South Wales

Johnstons Creek Naturalisation Project

APA Seaford-Aldinga Augmentation

Seaford, South Australia

Parramatta Light Rail Enabling Works

Installation of Water Services - Cudgegong Road

Sydney, New South Wales

North Sydney Desalination Pipeline

Sydney, Australia

Diona 40 Year Celebration Teaser

Marsden Park Dual Barometric Loop Construction

Eastern Creek Gravity Sewer Extension

Sydney, New South Wales

Epping to Chatswood Rail Line 33kV Installation

Sydney, New South Wales

WaterNSW announcement

Adelaide CBD Mains Replacement Program

St Marys Wastewater Central Precinct

Roma to Brisbane Pipeline (RBP) Dig Ups – Stage 2

Brisbane to Wallumbilla, Queensland

Ausgrid Substation Oil Containment Infrastructure Upgrade

New South Wales, Australia

Rochedale Water Infrastructure Upgrade

Bald Hills to Carseldine 275kV Cable Upgrade

Brisbane, Queensland

Cedar Grove Pump Stations

Sydney Light Rail

Sydney, New South Wales

Petrie Mill Pump Station and Trunk Sewer Augmentation

Pennant Hills Road & Marsden Road Intersection Upgrade

Sydney, New South Wales

International Women's Day with Rhonda McSweeney

Tunnel Dewatering Systems: Sydney Metro Northwest

Sydney, New South Wales

Adelaide Central Reinforcement Project

Adelaide, South Australia

Sydney Metro Northwest: various packages

Sydney, New South Wales

Canterbury Town Centre – Water & Sewer Infrastructure

Canterbury, New South Wales

Customer Centric Water Isolations

Mudgeeraba Water Treatment Plant – Pipework Reconfiguration

Mudgeeraba, Australia

Albert Street Gas Insertion

Brisbane, Queensland

Sydney Light Rail Intersection Work

Brunswick Area Sewer Augmentation

Byron Bay, New South Wales

International Women in Engineering Day 2020

Colongra Lateral Pipeline

Doyalson, New South Wales

Rhonda McSweeney joins Diona as Executive General Manager

R U Ok Day 2020

Northern Beaches B-Line Program – Water & Sewer

Sydney, Australia

Gawler East Link Road - South Para Bridge

Gawler East Link Road Project

Gawler East, South Australia

Fairwater – Precinct wide geothermal installation

Blacktown, New South Wales

Petrie Mill Trunk Sewer Augmentation & Pump Station

Murrarie Looping Project

Diona's Geothermal Capability

Works complete on Cedar Grove

Cedar Grove Pump Stations

Cedar Grove, Queensland

Partnering with Ausgrid for over 20 years

Gresford Road Bridge Over Glendon Brook

Mitchells Flat, New South Wales