Gardaí are warning that the N7 Naas Rd is reduced to one lane each way at Newlands Cross tonight.
Maintenance work also means that there is no right turn on to Fonthill Rd.
The restrictions are expected to be in place until midnight.
Concert traffic from Croke Park heading West towards Naas can use the N4 Sligo/Galway Rd to Junction 3 Lucan and use the outer ring road to rejoin the Naas Road at Junction 2.