We consulted on improvements to the A465 between Abergavenny and Hirwaun in 1994 as part of the process to develop the preferred route for the whole project.
Aethom ati i ymgynghori ar y gwelliannau i’r A465 rhwng y Fenni a Hirwaun ym 1994 fel rhan o’r broses o ddatblygu llwybr a ffefrir y prosiect cyfan.