Irish Water has awarded the contract for the design and construction of the Cobh to Monkstown Estuary Crossing pipelines to O’Connor Utilities Ltd – the work will form part of the €144 million Cork Lower Harbour Main Drainage Project.
The Cobh wastewater will ultimately be pumped via the crossing to Shanbally Wastewater Treatment Plant for safe discharge to Cork Lower Harbour.
Irish Water, in partnership with Cork County Council, is working to end the decades-long practice of discharging raw sewage directly into Cork Lower Harbour.
With 20,000 homes and businesses set to be connected to the new scheme on completion, this project is important in terms of protecting the environment, facilitating economic development and providing for a growing population.
Significant progress has already been made on the Cork Lower Harbour Main Drainage Project. Since the project started, the water company has halved the amount of raw sewage discharging untreated into the harbour through the construction of the Shanbally Wastewater Treatment Plant and connection of Crosshaven, Carrigaline and Shanbally in December 2016.
The network has been repaired and extended on the South side of the estuary. Ringaskiddy was connected to the treatment plant in October 2018 and Irish Water expects to be treating the wastewater from Passage West, Glenbrook and Monkstown this summer.
The Estuary Crossing pipeline
To allow the wastewater from Cobh’s homes and businesses to be treated at Shanbally Wastewater Treatment Plant, two pipes will be installed under the River Lee estuary between Cobh and Monkstown as part of the Estuary Crossing contract.
The Estuary Crossing contract will take approximately 1 year to complete, and once the Cobh Networks Contract is complete in 2021, all Cobh town’s wastewater will be connected to the Wastewater Treatment Plant at Shanbally by the Estuary Crossing pipeline for treatment before its safe discharge to the harbour.
Déaglán Healy, Project Manager Cork Lower Harbour Main Drainage Project said:
“The signing of the Cobh to Monkstown Estuary Crossing contract brings us another step closer to our goal of treating the remaining 20,000 wheelie bins of raw sewage flowing into the harbour in 2021.”
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