A5 road (Great Britain)

A5
Route information
Maintained by National Highways (England) and North and Mid Wales Trunk Road Agent
Length243.0 mi (391.1 km)
Major junctions
Southeast endMarble Arch, City of Westminster
51°30′48″N 0°09′37″W / 51.5133°N 0.1603°W / 51.5133; -0.1603 (A5 road (eastern end))
Major intersections
Northwest endPort of Holyhead
53°18′23″N 4°37′47″W / 53.3063°N 4.6298°W / 53.3063; -4.6298 (A5 road (western end))
Location
CountryUnited Kingdom
Primary
destinations
London, St Albans, Milton Keynes, Hinckley, Nuneaton, Tamworth, Cannock, Telford, Shrewsbury, Oswestry, Llangollen, Betws-y-Coed, Bangor, Holyhead
Road network
A4 A6

The A5, the London-Holyhead trunk road, is a major road in England and Wales. It runs for about 243 miles (391 km) from London to the Irish Sea at the ferry port of Holyhead. In many parts the route follows that of the Roman Iter II route which later took the Anglo-Saxon name Watling Street.