Defence Minister Simon Coveney says the number of Defence Forces personnel helping flood-hit communities will significantly increase from today.
Hundreds of roads around the country remain flooded this morning, as the latest rainfall alert comes to an end.
Counties Cork, Clare, Tipperary, Waterford and Kilkenny are worst affected with a number of national routes still impassable.
In one of the worst hit locations - Graiguenamanagh, Co Kilkenny - the village remains blocked by floods.
Conditions are set to improve later today, but tomorrow will be wet again - bringing the risk of more flooding.
Sharon Lynsky of AA Roadwatch, has details on some flooded routes:
The Defence Forces have been helping communities in the worst affected areas with the clean-up and with flood prevention.
Commandant Seán Ó Fátharta has paid tribute to the work of his troops: