The improvement and maintenance of regional and local roads in Dublin is the statutory responsibility of the relevant local authority, in accordance with the provisions of Section 13 of the Roads Act 1993. Works on regional and local roads are funded from the relevant local authorities' own resources supplemented by State grants, where applicable. The initial selection and prioritisation of works to be funded is also a matter for the local authority.
Arising from the arrangements in place in relation to Local Property Tax receipts the four Dublin Councils became self funding for regional and local roads under the main road grant categories from 2015. The provision of funding for the junction in question is, therefore, a matter for the local authority.