Ballycoolin to Kingstown Trunk Water Mains

Trunk Water Mains

Irish Water, working in partnership with Fingal County Council, is progressing with the Ballycoolin to Kingstown Trunk Watermain project to safeguard the water supply to homes and businesses across North Dublin. Roadbridge Limited has recently signed the contract to deliver these works on behalf of Irish Water.

The existing water supply network serving the North Dublin Region depends on a single large diameter concrete watermain built in the 1960's that connects Ballycoolin reservoir to Kingstown. The existing watermain is operating beyond its capacity, which results in low water pressure across the region during periods of peak demand. As the watermain is a critical piece of the supply network, it cannot be taken out of service to be upgraded.

The absence of additional infrastructure in the region prevents Irish Water from diverting available drinking water supplies to areas experiencing a loss of supply whilst emergency works (or planned improvement works) are underway on the existing watermain. Moreover, the current watermain does not enable future growth across the region.

The new additional trunk watermain will improve the security of supply and resilience of the network; enable long term social and economic development in the wider Fingal area; and ensure that water pressures are maximised. 

 

Location
Dublin
Status
In Progress
Type
Water

What is involved as part of this project?

As part of this project, Irish Water's Contractor will install a new large diameter underground watermain, which will run parallel to the existing watermain for most of its length. The new pipeline will predominantly be on private land; however, a number of public road crossings will be required at the following locations throughout July 2021:

  1. L3125 From Kilshane Cross to St Margarets
  2. L7231 Newtown Cottages Road
  3. R122 at St Margaret’s
  4. Kilreesk Road

It is expected each public road crossing will take 2 days to install the pipeline and complete the temporary road reinstatement. It is proposed to carry out these works during the month of July, during the school holidays.

A full 24hr/day road closure will be required due to depths and width of road. Pedestrians will be accommodated where possible but there will be no traffic access for the duration of the crossing works. The Emergency services will be issued with closure and diversion details in advance of works.

What are the benefits of these works?

  • Improve water supply security and resilience for residents, hospitals, agricultural enterprises and business in the North Dublin Region;
  • Increase the water transfer capacity to meet current demand and facilitate development in North County Dublin.


What is happening now?

Works recently commenced on private land. It is expected to take two years for the entire project to be completed.

As part of the next phase of works, the following local road closures and stop/go systems will be implemented to allow for the installation of the new 1200mm Ballycoolin Trunk Water Main in the following roads;

  • The R122, just North of St Margaret’s Village near the Junction with Kilreesk Lane. This will be carried out on Tuesday, 13 July and Wednesday, 14 July. Local diversions will be in place during this closure.
  • Kilreesk Road, near the junction with Kilreesk Lane. This will be carried out on Thursday, 15 July and Friday, 16 July. Local diversions will be in place during this closure.
  • A stop/go traffic management system will be in place on the L3125 from Kilshane Cross to St Margaret’s on the following dates:
  • 5 July to 10 July (Monday to Saturday inclusive) and 12 July to 14 July (Monday to Wednesday inclusive) to facilitate the installation of the new Trunkmain. Works will be carried out between 9.30am and 4.00pm at this location, to minimise impact to traffic.

Please see the below Traffic Management Plans for the proposed closures and diversion routes during the works. We will endeavour to update you as the project progresses.

Road crossing at Kilreesk Road, St. Margaret's

Road crossing at R122 at St. Margaret's

Frequently Asked Questions

  • Why is a new trunk watermain between Ballycoolin and Kingstown necessary?

    The existing water supply network serving the North Dublin Region depends on a single large diameter concrete watermain built in the 1960's that connects Ballycoolin reservoir to Kingstown.

    The existing watermain is operating beyond its capacity, which results in low water pressure across the region periods of peak demand. As the watermain is a critical piece of supply network, it cannot be taken out of service to be upgraded.

    The absence of additional infracstructure in the region prevents Irish Water from diverting available drinking water supplies to areas experiencing a loss of supply whilst emergency works (or planned improvement works) are underway on the existing watermain. Moreover, the current watermain does not enable future growth across the region.

    The new additional trunk watermain will improve the security of supply and resilience of the network; enable long term social and economic development in the wider Fingal area; and ensure that water pressures are maximised.
  • What areas are served by the Ballycoolin to Kingstown watermain?

The watermain serves parts of Dublin North City and North County Dublin: Swords, Portmarnock, Malahide, Balbriggan, Skerries, Rush, Donabate, Clonshaugh, Coolock and Darndale. It also supports large institutional and commercial uses including Beaumont Hospital and Dublin Airport.

  • When will the upgrade works start and finish?

The works are due to commence in Q2 2021 and are expected to take two years for the entire project to be completed.

  • Where will the construction be carried out?
    The vast majority of works will be carried out of private lands with very limited interface with the public only at a number of short crossings of regional and local roads. The route of the new pipeline generally follows the route of the existing watermain. The route was determined following a site selection and engagement process with a focus to limit impact to the public.

    The maps indicates the road crossings, where the red line denotes the route for the new pipeline and the dotted cyan-blue line represents the current pipeline.

  • Will there be traffic management in place?

    Traffic management will be in place where road crossings and site access points occur. Typical traffic management measures may include temporary traffic lights, stop/go systems and diversions. Signs will be erected in advance of works commencing to ensure road users are aware of current and upcoming traffic measures.

    The works to be carried out at public road crossings are expected to take 1-2 weeks each to complete. Regular engagement with the community is planned throughout the project duration.

    Local access and emergency access will always be maintained.
  • What does the project involve?

    As part of this project, Irish Water's Contractor will install a new large diameter underground watermain, which will run parallel to the existing watermain for most of its length. The Compulsory Purchase Order (CPO) required for the project was subject to approval by An Bord Pleanála in 2019. The new pipeline will predominantly be on private land, with a limited number of public road crossings required.

A Community Liaison Officer (CLO) for the project will begin in Q2 2021. Their contact details will be provided in advance of the works commencing.