Works will get underway early next month in Roscommon Town, to provide a more reliable water supply for businesses.
Irish Water, working with Roscommon County Council, is will replace sections of problematic water mains in the county town, to reduce the frequency of bursts and improve water quality.
The works will involve replacing over 860 metres of cast iron water mains with high-density plastic pipes and will take place along Goff Street, Athlone Road, Church St and Abbey Street.
The works will start in early July and continue until October.
Road closures will be in place during the improvement works, but will be limited to one section at a time to maintain traffic flow and minimise impact on customers.
Irish Water says diversions will be clearly signposted.