Our Projects

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

Sydney, New South Wales

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

Brisbane to Wallumbilla, Queensland

Refresh Woolloomooloo

Murarrie Looping Project

Brisbane, Queensland

Grey Street Pump Station

North West Growth Centre Wastewater Transmission

Box Hill, New South Wales

Sydney Light Rail Intersection Work

Greenhill Road Gas Pipeline

Adelaide, South Australia

Strategic Infrastructure Delivery Partner Agreement - Unitywater

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

Marsden Park, New South Wales

Canterbury Town Centre – Water & Sewer Infrastructure

Canterbury, New South Wales

Gawler East Link Road - South Para Bridge

Powells Creek Naturalisation

Ausgrid Substation Oil Containment Infrastructure Upgrade

New South Wales, Australia

Murrarie Looping Project

Johnstons Creek Timelapse

Refresh Woolloomooloo

Sydney, New South Wales

Pennant Hills Road & Marsden Road Intersection Upgrade

Sydney, New South Wales

International Women in Engineering Day 2020

Hay Street Substation

Sydney, New South Wales

Diona 40 Year Celebration Teaser

Chambers Flat Pump Station

Chambers Flat, Queensland

Singleton Sewage Treatment Plant – Ultraviolet Disinfection System

Singleton, New South Wales

Marburg Range Repair Project

Marburg, Queensland

Peakhurst Substation

Sydney, New South Wales

Gas Mains Replacement Adelaide

Rochedale Water Infrastructure Upgrade

Brisbane, Queensland

Brunswick Area Sewer Augmentation

Byron Bay, New South Wales

Kilcoy Water Main Augmentation

Kilcoy, Australia

Singleton Town Centre Revitalisation Part II

Sydney Light Rail

Sydney, New South Wales

Eastern Creek Gravity Sewer Extension

Sydney, New South Wales

Marsden Park Pressure Sewer

Bromelton Trunk Water Main

Bromelton, Queensland

Cedar Grove Pump Stations

R U Ok Day 2020

Marsden Park Pressure Sewer

North West Sydney, New South Wales

Tunnel Dewatering Systems: Sydney Metro Northwest

Sydney, New South Wales

Logan Reserve 110kV

Logan Reserve, Queensland

St Marys Wastewater Central Precinct

Gresford Road Bridge Over Glendon Brook

Mitchells Flat, New South Wales

Upskilling our future workforce

APA Seaford-Aldinga Augmentation

Seaford, South Australia

Diona: Who We Are & What We Do

Johnstons Creek Naturalisation Project

St Marys Wastewater Central Precinct

Somerton Road Branch Gravity Sewer

Melbourne, Victoria

North Sydney Desalination Pipeline

Sydney, Australia

Adelaide CBD Mains Replacement Program

Adelaide, South Australia

Works complete on Cedar Grove

Great Western Highway Safety Upgrade: Blackheath

Blackheath, New South Wales

Diona Melbourne

Northern Beaches B-Line Program – Water & Sewer

Sydney, Australia

Colongra Lateral Pipeline

Doyalson, New South Wales

Mudgeeraba Water Treatment Plant – Pipework Reconfiguration

Mudgeeraba, Australia

Beecroft and Carlingford Roads Intersection Upgrade

Sydney, New South Wales

APA Mains Renewal Program - Fitzroy Stage 3

Melbourne, Victoria

Epping to Chatswood Rail Line 33kV Installation

Sydney, New South Wales

Scott Street Dandenong Gas Main Renewal

Dandenong, Victoria

Sydney Metro Northwest: various packages

Sydney, New South Wales

Hayes Hill Branch Sewer

Tanunda Gas Pipeline

Tanunda, Australia

Hayes Hill Branch Gravity Sewer

Melbourne, Victoria

Lilydale Gas Pipeline

Lilydale, Victoria

Gawler East Link Road Project

Gawler East, South Australia

Safety comes first at Diona

Chetwynd Street Lift Pump Station Civil & Mechanical Works

Loganholme, Queensland

Rozelle STS Expansion and Associated Civil Works

Adelaide Central Reinforcement Project

Adelaide, South Australia

Powells Creek Naturalisation Project

Marsden Park Dual Barometric Loop Construction

Cedar Grove Pump Stations

Cedar Grove, Queensland

Rhonda McSweeney joins Diona as Executive General Manager

Bald Hills to Carseldine 275kV Cable Upgrade

Brisbane, Queensland

Picnic Point to Haymarket – 330kV cables

Sydney, New South Wales

Sydney Park to Haymarket 330kV Cable Circuits

Sydney, New South Wales

Eastern CBD 11kV Cable Project

Singleton Town Centre Upgrade

Singleton, New South Wales

Literature Lane Gas Main Relocation

Melbourne, Victoria

Tarro to Shortland - Trunk Watermain

North West of Newcastle, Australia

Installation of Water Services - Cudgegong Road

Sydney, New South Wales

Parramatta Light Rail Enabling Works

Adelaide CBD Mains Replacement Program

McLachlan and James Street Intersection Stormwater Upgrade

Brisbane, Queensland

Bilpin Overtaking Lane

Sydney, New South Wales

Albert Street Gas Insertion

Brisbane, Queensland

Rochedale Water Infrastructure Upgrade