Saggart Reservoir Project

Reservoir Project

Irish Water is constructing a new reservoir in Saggart to improve security of supply to the Greater Dublin Area.

Location
Dublin
Status
In Progress
Type
Water

Introduction

Irish Water, working in partnership with Dublin City Council and South Dublin County Council, is progressing with plans to upgrade the Saggart Reservoir. The current waterworks will be replaced with a new reservoir that will provide treated drinking water storage, building resilience in the water infrastructure for the Greater Dublin Area.

This €59 million investment includes the construction of 100 million litres covered treated water reservoir to store water supplied from Ballymore Eustace Water Treatment Plant and will improve security and resilience of supply to the Greater Dublin Area. Coffey Construction Ireland Limited are working on behalf of Irish Water to deliver this project.
 

What are the benefits of these works?

The works carried out as part of this project will:

  • Increase the security and resilience of the drinking water supply to businesses and residents in the area.
  • Facilitate future growth and development in southwest Dublin.
  • Provide enough storage capacity to meet current and future storage requirements.
  • Address the current and medium-term water supply demands of the Greater Dublin Area.
     

What is involved as part of this project?

The project includes the construction of:

  • A 100 million litres covered treated water reservoir at the existing reservoir site in Saggart, equivalent to the size of 40 Olympic sized swimming pools
  • A new electro chlorination plant and associated infrastructure.
  • Construction of associated pipelines on site to connect to the new reservoir.
  • The project also includes the construction of approximately 680 metres of the new Slade Valley trail which will be running along the boundary of Irish Water’s site and has been incorporated into the design of the works at the reservoir site. This is the first section of the Slade Valley trail to be constructed within the town limits of Saggart (see image below).

What is happening next?

The construction of the new reservoir and associated pipelines started in March 2021 and is expected to be completed within 3 years.

To facilitate the construction of the new reservoir, the next phase of the project involves the excavation and removal from site of a large volume of topsoil and inert subsoils, as well as concrete pouring. There will be an unavoidable increased flow of construction traffic to and from the site during this period. It is planned that this will commence in the coming weeks.

The majority of works will take place behind the site hoarding, with minimal impact to the public. We will endeavour to keep you updated as this project progresses.

Project Overview

Approximately 680 metres of the new Slade Valley trail which will be running along the boundary of Irish Water’s site and has been incorporated into the design of the works at the reservoir site.