 The 2 @.@ 57 km ( 1 @.@ 60 mi ) Butetown Link Road ( Welsh : Ffordd Gyswllt Butetown ) between the Ferry Road Interchange ( 51 @.@ <unk> ° N 3 @.@ <unk> ° W ﻿ / 51 @.@ <unk> ; <unk> ﻿ ( Ferry Road Interchange ) ) and the Queen 's Gate Roundabout ( 51 @.@ <unk> ° N 3 @.@ <unk> ° W ﻿ / 51 @.@ <unk> ; <unk> ﻿ ( Queen 's Gate Roundabout ) ) was opened on 27 March , 1995 by Neil <unk> at the time the European Commissioner for Transport . Construction of the link road commenced on 15 October 1993 and it was the last link road to be built . It includes the Taff Viaduct , also known as the Butetown Link Road Bridge , and the Queen 's Gate Tunnel , which is also known simply as the Butetown Tunnel . 
