Funding of €250,000 has been allocated for the upgrade of the Rathdrum/Ballinaclash Junction.
The scheme has received funding from the Department of Transport, Tourism and Sport as part of the local authority's allocation for 2020.
The works, which will see the re-alignment of the junction, and have been welcomed by several local councillors.
Councillor Sylvester Bourke said he was 'delighted, after 20 years of lobbying, to have got it.'
Cllr Bourke continued by paying tribute to the work of current and former councillors, including Bill O'Connell and Nicky Kelly, on the long-awaited scheme.
'It's great news. The junction is lethal and there have been fatalities there. Credit must also be paid to the landowner who has made land avaiable to the county council. The works will improve safety,' Cllr Bourke said.
Cllr Pat Kennedy said he was 'delighted' with the funding allocation for the project.
'Phase 1 of this project was the installation of the footpath from the graveyard to the junction. This footpath stopped short of the junction in order to allow us to seek funding for the re-alignment of the junction. National Road Safety guidelines state that roads of equal importance should meet at a 90 degree angle or as close as what is achievable. Both roads converging at the junction are regional roads of equal importance but currently meet at around 33 degrees leading it to be extremely dangerous.
'With the allocation of this funding, we can now proceed with Phase 2 of the project and get the junction realigned in order to make it much safer for all road users.'
Cllr Kennedy continued: 'I want to thank the local people, the landowner and who are working to make this possible. I also want to thank the three Wicklow County Council engineers who have been involved in this and who have engaged with me over the number of years in order to push this forward.'
The funding was confirmed by Minister for Health and local TD Simon Harris as part of Wicklow County Council's allocation for 2020.