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In Progress
The upgraded wastewater treatment plant in Osberstown.


  • The sewer network will have more capacity, which will facilitate future growth and economic development
  • Treated wastewater will be cleaner and will meet all regulatory requirements, which will help Ireland avoid substantial EU penalties
  • The number of emergency overflows to the River Liffey will be significantly reduced
  • There will be a reduced risk of flooding in Naas


  1. Significant upgrades to the Osberstown wastewater treatment plant (now complete).
  2. 28Km of new gravity sewers and rising mains to reinforce and improve the existing network.
  3. 6 new or upgraded pumping stations, all with stormwater storage tanks to reduce the risk of emergency overflows.

What is happening in Sallins?

Works are currently taking place at Sallins Pumping Station. As part of these essential works, over pumping at Sallins Pumping Station will be required to carry out the upgrade at the existing pumping station. This means additional pumps will be in operation for the duration of the works to allow the upgrade to be carried out effectively.

It is planned that works will commence on 13 January 2021 at Sallins Pumping Station. Irish Water expects these works to last at this location for approximately 6 weeks.

Irish Water is working proactively with our delivery partners and as part of a multi-agency working group to ensure that our construction works are carried out in a controlled and safe manner, in keeping with Government and HSE guidelines to protect workers, their families and the broader community.

What is happening in Clane?

For more information on these works, please visit our Clane project page.

What is happening in Newbridge?

For more information on these works, please visit our Newbridge project page.

What is happening in Naas?

For more information on these works, please visit our Naas project page.

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