The works form part of Unitywater's $500 million infrastructure replacement and renewals program and will include structural improvements, roof replacements, pipework and concrete upgrades, security enhancements, and internal cleaning and recoating of selected reservoirs.
The reservoirs are located at Pomona, Coes Creek, Bellara, Morayfield, Cashmere, Eatons Hill and Ferny Hills.
Unitywater Executive Manager Sustainable Infrastructure Solutions, Mike Basterfield, said the upgrades would extend the life of critical water infrastructure to enable reservoirs to continue safely storing and supplying drinking water to the region’s growing communities.
"We have 103 water reservoirs across our network, some of which have been serving their communities for more than 50 years," Mr Basterfield said.
“The Coes Creek reservoir, constructed in 1974, supplies water to about 2,000 residents and is undergoing a 10-month upgrade until June 2027, including a new roof, gutters and access system, new valves to better manage water flow and the cleaning and recoating of the internal walls of the reservoir.”
He said the works at the Bellara water reservoir on Bribie Island had begun in October and were due for completion in April 2027.
“This reservoir, which services nearly 23,000 residents, will have its roof replaced. This is a vital upgrade required to help keep any potential contaminants out of the reservoirs and increase the longevity of the asset to continue supplying safe water to the community for decades to come,” he said.
“Over the same timeframe between now and April 2027, we will be undertaking upgrade works at the Clear Mountain Reservoir in Cashmere, with roof replacement works, cleaning and recoating the internal walls and ensuring other reservoir components are in good condition or replaced where needed.”
Additionally, the water reservoir at Minerva Court, Eatons Hill, will receive an upgrade, including refurbishment works to the reservoir exterior, cleaning and recoating works on the internal walls and a temporary pump station.
"Our networks rely on pumping infrastructure to maintain water supply while reservoirs are offline for renewal works," Mr Basterfield said.
"The pump station at Eatons Hill will help ensure customers continue to receive a reliable water supply throughout the project."
Unitywater's delivery partner, Downer, is carrying out the works and keeping directly impacted residents informed throughout the duration of the projects.
Continued investigations at the Pomona, Ferny Hills and Morayfield reservoirs are underway to finalise upgrade requirements.
Downer Executive General Manager Water, Neal Firth, said the company was proud to support the renewal of critical water infrastructure across the region.
"We're working closely with Unitywater to deliver these projects safely and efficiently while helping ensure communities continue to have access to a safe and reliable water supply," Mr Firth said.
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