The new M4 to be built south of Newport will boost transport links and benefit business and commuters says Wales' Transport Minister Edwina Hart.
More top news
Exit Poll puts Boris Johnson's Conservatives are on course to win the 2019 General Election with a large majority.
If Welsh seats go with national swing, Labour face at least three losses but polling experts expect another five or six seats to go Tory.
The Tories are predicted to win 368 seats - a majority of 86 - while Labour tumble to 191 seats, their worst result in modern history.