Traffic disruption is expected on the N59 at Moycullen until mid-April while construction work on the bypass takes place.
Traffic management measures are currently in place on the N59 on the Galway side of Moycullen while road construction works take place.
The works, which began this week, involve the reworking of the existing N59 to the new alignment connecting with the roundabout at the end of the bypass.
Works are expected to take 9 weeks to complete, and during this time traffic will be reduced to a single lane in phases as the roadworks progress.
The first sod was turned on the 4.3km Moycullen Bypass at the end of January in 2022, after the contract for the long awaited project was signed late the previous year.
The €35 million project was granted planning permission in 2012, and is expected to open to traffic this year.
When completed the bypass will loop around the eastern side of the village, connecting with the existing N59 at two new roundabout junctions at each end.
Along with the 4.3km of new carriageway, improvements will also have to made to 3km of local roads, 1.7 km of accommodation roads and 10 structures.