Shannon Sewer Upgrade

Wastewater Project

Upgrading the sewer network in Shannon to remove blockages and address structural defects.

Irish Water, working in partnership with Clare County Council, is investing €2.1 million to upgrade the sewer network in Shannon. Underground System and Sewer Repair Limited is working on our behalf to deliver this project.

This project is currently on-going, with the sewer upgrade works scheduled for completion in summer 2019.

Think before you flush

  • Irish Water is supporting Clean Coasts to raise awareness and reduce these issues through the ‘Think Before You Flush’ and ‘Think Before You Pour’ campaigns.
  • Think Before You Flush is a public awareness campaign about the problem sanitary products and other items can cause in our marine environment and our wastewater systems if they are flushed down the toilet.
In Progress
€2.1 million


  • Clean and identify any structural defects of the sewers
  • Reduce the likelihood of sewer collapses and blockages
  • Reduce potential sewer flooding and odour issues
  • Improve the performance level of the sewer network


  • Cleaning the sewer network in order to undertake an accurate inspection and remove any blockages caused by inappropriate items (e.g. wet wipes, cotton pads, fats, oils and greases etc.)
  • Undertaking CCTV surveys of the sewer network to determine their condition and the extent of defects, with 8.5 km of pipelines surveyed to date
  • Relining any defects of the sewer through the installation of liners, with approximately 7km of sewers to be rehabilitated
  • Works are being carried out using non-dig technology to reduce impacts to residents, the general public, businesses, schools and to minimise traffic disruption