Traffic will be slowed down to one lane entering Portlaoise from the M7 motorway, at a busy roundabout junction.
Laois County Council has announced four days of roadworks at the roundabout linking Father Brown Avenue to the Abbeyleix road and the southern circular ring road around Portlaoise.
Works and road narrowing will affect drivers from 8am to 6pm starting on Tuesday, August 2 until Friday evening.
The council says it is carrying out works on the roundabout, which is next to Laois GAA's O'Moore Park.
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