Wicklow County Council has said road works will commence today in Rathdrum, with a traffic management plan now in operation.
The works will take place on the L-2127, Brewery Lane in the Wicklow village.
The council said the works will last for approximately one week and delays are expected as a result.
Meanwhile, the Quinsborough Road in Bray will temporarily be closed next month.
The closure will take place on September 3 for just 24 hours and will extend from the junction of Quinsborough Road/Florence Road and the junction of Quinsborough Road/Stand Road.
The council said the road closure is necessary in order to facilitate the renewal of track and road surface across Bray Level Crossing.