The Galway City Ring Road has been granted planning permission.
Galway County and City Councils are welcoming the decision by An Coimisiún Pleanála.
The 18-kilometre road would run from the M6 motorway on the outskirts of the city to west of Barna.
Friends of the Irish Environment, which successfully challenged a previous application for the ring road, had submitted that the latest plan failed to comply with statutory obligations under Ireland’s climate legislation.