Waterford City Council has announced it will build a floating wall along its city walls to protect the capital city from flooding.
Dublin City Council will spend $5 million to erect a water-resistant barrier around its city centre.
Dublins first wall will have a total of 10 metres of water-resistance in place.
The barriers will be erected along the city walls.
Waterford City Councillor Dan Loughan said the barrier would provide a barrier that would protect residents from flooding, but that he would not discuss the cost of the project.
The barrier is to be installed on the east side of the city centre, about 10 metres above the city’s flood level.
Dubliners first wall is expected to be completed in 2021.
The city council said the water-repellant barrier was designed to keep out the citys waters and will have an initial cost of $6 million.
Water-resistant barriers are used in Australia and New Zealand to protect buildings from flooding from rainwater, but the project in Ireland has raised the spectre of a flood event.
Dubris City Council was also given the green light to install a similar barrier on the city of Galway, which is about 12 kilometres away.
The Galway barrier is expected be installed by the end of this year.
Dubrains water-resistant barrier is the first of its kind in the country.
Dubrin Water has been asked by Waterford Council to help the city create the barriers.
The council said it had been working with Dublin Water and the Dublin Water Conservation Authority for the last three years to develop the design of the barrier.
It said it was not yet certain when the barriers would be installed, but was hopeful that the barriers could be ready by the spring.
The Waterford barriers are being constructed on a 1.4 hectare site in Waterford’s western suburb of Coombe.
Dubrillians first wall was erected on the East side of Dublin’s city walls in the 1970s, after it was flooded by a series of torrential rains in the early 1980s.
Dubrovnik City Council said it is also seeking to install barriers on the West side of its city wall.