Back to our old friends Highways England (or are they National Highways now?)
Highways in
Wales are, I believe, the responsibility of the
Welsh Government. However, from a quick look at the article, I see that the Rhondda Tunnel is disused
rail infrastructure so belongs to Highways
England (
AKA▸ National Highways) despite being in Wales. What a bizarre suituation; things would probably make more sense if the British Rail Board (Residuary) hadn't been abolished.