The N22 Macroom By-Pass Road will close temporarily from Tuesday.
The next section of the N22 Baile Bhuirne Macroom Road Scheme is due to open on Friday.
It is an 8 kilometre section of Type 2 Dual Carriageway between Carrigaphooca to the west of Macroom and Tonn Lain to the east of Baile Mhic Ire.
To facilitate the opening of the new section, the N22 Macroom By-Pass Road will close temporarily from 9am tomorrow until Friday.
This is to allow for the safe removal of the temporary roundabout at Carrigaphooca, west of Macroom Town.
The alternative route for westbound traffic will be through Macroom town centre while eastbound traffic will be able to access the Macroom By-Pass at the Millstreet Road Junction.
