The A465 Heads of the Valleys road upgrade in south Wales, infamous for its lengthy construction and significant delays, is set to conclude after 23 years of work. Originally hoped to enhance connectivity and economic prospects in one of the UK’s most deprived regions, the £2 billion project faced numerous challenges including environmental concerns, funding issues, and community disruption. Local ministers believe the improvements will benefit the area by easing congestion and generating jobs, despite criticism regarding costs and the long timeline.