The Office of Public Works is being attacked for failing to take stronger action to prevent flooding.
Hundreds of acres are under water and some homes and businesses have been damaged, especially in the west and midlands.
Liam Farrell's businesses in Carrick-on-Shannon are in danger of being flooded.
He says state bodies have failed to take action after flooding in previous years.
Meanwhile, a status yellow snow and ice warning remains in place for the entire country until nine o'clock this morning.