A wnaiff y Gweinidog Cabinet amlinellu'r rhesymeg y tu ôl i gau lôn ar yr A465 rhwng Gilwern a'r Fenni ar hyn o bryd?
Wedi'i ateb gan Dirprwy Weinidog dros Drafnidiaeth | Wedi'i ateb ar 19/10/2026
The eastbound lane closure on the A465 between Gilwern and Abergavenny is required to enable Welsh Water to undertake emergency repairs to a burst water main.
The length of the closure reflects Welsh Water’s safety requirements. Our South Wales Trunk Road Agent is discussing whether the closure can be shortened and, if this can be achieved safely, it will be reduced over the weekend of 17th and 18th October.
Welsh Water currently expects to complete the emergency works and remove the lane closure by Friday 23 October.