Motorists are being advised not to make unnecessary journeys following severe weather conditions across the country.
The M4 between the Maynooth and Kilcock exits is closed due to serious flooding. Conditions will be reviewed tomorrow morning, but meanwhile diversions are in place.
The Clane to Kilcock Road is blocked and the Kilcock to Summerhill road is down to one lane. Motorists are advised to use the M7 as the Newbridge to Naas road is partially closed from Tuckers roundabout. Meanwhile, the road from Rathangan to Kildare town remains impassable.
Elsewhere, the Clifden to Westport road near Letterfrack is blocked. Diversions are expected to remain in place until tomorrow morning.
In Wicklow, Rathnew has experienced severe flooding and the Wicklow to Rathnew road is still impassable as is the Trim to Dublin road in Co Meath. The Skreen to Walterstown road is closed, but the Navan/Slane road is now passable. However, drivers are urged to drive with extreme care.
In Co Tipperary, a bridge at Ballynunty has collapsed following heavy rain. The Park Road in Ravensdale, Co Louth is impassable and motorists are advised to take an alternative route.
Severe flooding in Co Monaghan has blocked the Castleblayney to Lough Egish road at the bypass bridge and there is also flooding along the N54 Monaghan to Clones road and on the Carrickmacross to Ballybay road.
The Tramore road in Co Waterford is impassable from the Ballindud roundabout to Tramore.
There are reports of some localised flooding in parts of Dublin, however no traffic restrictions are in place for the capital.