Roscommon Main Drainage Scheme

Irish Water is progressing plans to upgrade the sewer network in Roscommon Town.

Irish Water, working in partnership with Roscommon County Council, is progressing the Roscommon Main Drainage Scheme. This project represents a further step in the continued delivery of improvements to the wastewater network in Roscommon.

When completed, the scheme will reduce the risk of sewer flooding in Roscommon Town and also eliminate non-compliant sewer overflows into the River Jiggy. It will also improve the capacity of the sewer network allowing for current and future population growth.



Upon completion the project will:

  • Reduce the risk of sewers flooding;
  • Enhance the water quality in the Jiggy and Hind rivers;
  • Improve sewer capacity to facilitate economic development; and
  • Ensure compliance with the Urban Wastewater Treatment Directive.


This project will include the following works including:

  • Installation of 7.2km of new higher capacity sewers and rising mains;
  • Upgrade of six existing storm water overflows and decommissioning a further six;
  • Construction of a new inlet pumping station, balancing tank and storm water holding tank at the existing Wastewater Treatment Plant; and
  • New /Upgraded pumping stations with stormwater storage at Circular Rd, Castlerea Rd, Ardsallagh, Ballinagard.