A478 road

The A478 road is a major road in Wales. The route is from its junction with the A487 at Cardigan, Ceredigion, to Tenby, Pembrokeshire. It crosses the Preseli Hills and winds through farmland for almost all of its route. The road just touches the very west of Carmarthenshire.

A478
Route information
Length31.8 mi (51.2 km)
Major junctions
North endCardigan
Major intersections A487
A40
A4115
A477
A4218
A4139
South endTenby
Location
CountryUnited Kingdom
Primary
destinations
Cardigan
Tenby
Road network
  • Roads in the United Kingdom
  • Motorways
  • A and B road zones
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