Old water mains along the Ballybay Road in Newbliss will be replaced over the coming weeks.
Irish Water, working in partnership with Monaghan County Council, will replace 2.4km of ageing mains on the R183 with new modern pipework.
Irish Water says the works, which are due to be completed in August, will ensure a more reliable water supply, reduce high leakage levels, and improve water quality.
Declan Cawley is Irish Water's National Leakage Reduction Programme Regional Lead.
He says the rehabilitation works will be completed in advance of Monaghan County Council carrying out road overlay works on the R183 in Autumn of this year.
In order to minimise the impact to the people of Newbliss, areas of work will be limited to short sections, and local and emergency access will be maintained at all times.
Traffic management will be in place, with a lane closure along the Ballybay Road.
The works may involve some short-term supply interruptions, but the project team will ensure customers are given a minimum of 48 hours' notice prior to any planned water interruptions.
Meanwhile, the mains rehabilitation works on the Clones Road section in Newbliss are also progressing and due for completion by the end of May.
