A wnaiff Llywodraeth Cymru amlinellu'r rhesymeg dros glustnodi cyffyrdd 27, 26, a 25 ar yr M4 yng Nghasnewydd ar gyfer eu cau?
Wedi'i ateb gan Dirprwy Weinidog dros Drafnidiaeth | Wedi'i ateb ar 13/10/2026
Information relating to the potential alternations to M4 junctions, such as cost and programme estimates, is contained within my oral statement on 6 October and the accompanying technical report published on the Welsh Government website. Further work will be undertaken to develop the proposals, assess their potential impacts and engage with local communities, businesses and other stakeholders to inform their development and ensure that implications for the surrounding road network are fully considered.