Upper Liffey Valley Regional Sewerage Scheme


Client: Kildare County Council
Location: Kildare, Ireland
Value: €40 Million
Scope: Stage (i) to (v) including PSDP



The Upper Liffey Valley Regional Sewerage Scheme serves a number of towns in north Kildare, including Naas, Newbridge, Sallins, Clane, Kill, and others with sewage flows connected to a regional wastewater treatment plant at Osberstown.

The total catchment area of the combined agglomerations is approximately 3,500 ha with drainage systems comprising of combined, separate and partially separate systems. The delivery of the scheme will involve a number of separate contracts, including a contract for the upgrade of the Osberstown WWTP and a number of contracts for the upgrade of the collection network.

Key Features:

  • Contract 1 - Upgrade of Osberstown WWTP from 80,000 PE to 130,000 PE
  • Contract 2B – Collection Network (5 pumping stations and 20 No. individual pipelines, with diameters varying from 300 mm ø to 900 mm ø, and pipeline lengths varying from 53 m to 3,707 m