In Progress

Irish Water is working in partnership with John Craddock Limited to upgrade the existing aging water mains which supply the Howth area. The project will improve the water supply service to householders and businesses in Howth.


  • Improved security of water supply
  • Fewer unplanned water interruptions
  • Increased contingency water storage

Howth Water Supply Project

  • Construction of 6.1 km water mains, from Baldoyle  to the existing Reservoir at Dungriffen, Howth
  • Rehabilitation and upgrade works at the existing Corr Bridge Pump Station
  • Construction of a new pump station including chlorine dosing facilities at Dungriffen Reservoir

News and Updates

New connection works may cause supply disruptions to Carrickbrack Road, Old Carrickbrack Road, Old Thormanby Road, Sutton, Howth and surrounding areas in Co. Dublin.

Works are scheduled to take place from 10.00am until 4.00pm on Thursday, 19 March, 2020.

We are reviewing all planned disruptions to water supply over the coming weeks to ensure that the period of time that customers are without water is kept to the absolute minimum and that disruptions only go ahead where they are unavoidable to complete essential work. In some cases the temporary disruption allows us to improve the overall security of water supply by repairing leaks or making a new connection. The majority of customers should still have some water available for hand washing in attic storage or hot water tanks while the main water supply is disrupted.

Irish Water and our contractors are continuing to follow Government and HSE advice and remote working is being implemented where possible for office and site office staff subject to business critical and core business processes being maintained

Details of upcoming works in Howth:
Proposed Dates
Duration of works
Traffic Management
Howth Road, Deer Park
23 March – 03 April
10 days
Stop-go system.
Carrickbrack Road
23 March – 03 April
10 days
Temporary road closure with local diversions.
Dungriffen Reservoir
23 March – 03 April
10 days

These works will be carried out in phases to reduce impact to businesses and residents. Local access will be maintained at all times. Working areas will be kept to a minimum to minimise any traffic congestion.

Diversion Routes

View the diversion routes by clicking on the links below:

Phase 1

Phase 2

Phase 3

View more projects

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