Wales' Transport Minister, Carl Sargeant, told us the Heads of the Valleys road is vital for people to access jobs, and for the economy to function properly.
The Deputy Minister for European Programmes, Alun Davies, said it is 'fundamental' infrastructure, which 'enables us to compete on the Welsh, UK, European and world stage.'
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After a dry end to the day, there'll be a few showers this evening Winds getting stronger overnight.
If you missed tonight's episode of Wales This Week, Test Tube Triumph, you can now catch up here
Jean Davies said her life had become "intolerable". Her daughter Bronwen speaks to ITV News about the decision.