A1 road (Northern Ireland)

The A1 is a major route in Northern Ireland. It runs from Belfast via Lisburn and Banbridge to the border with the Republic of Ireland south of Newry, from where the road continues to Dublin, becoming the N1 road and M1 motorway. Between Sprucefield and Carrickcarnan the road forms part of the European route E01.

A1 shield

Route information
Part of E01
Length42.5 mi (68.4 km)
HistoryDualling from Sprucefield to the border took place between 1971 and July 2010.
Major junctions
North endBelfast
 A3 in Lisburn
M1 Junction 7 at Sprucefield
A26 and A50 at Banbridge
A2, A25, A27 and A28 at Newry
South endNear Meigh, south of Newry at border with the Republic. Becomes M1.
Road network
The route of the A1 in red from Belfast city centre (Co. Antrim) to the border at Carrickcarnan (Co. Louth)

Recent developmentsEdit

The A1 is dual carriageway south from Sprucefield tbut some junctions remain relatively low specification as they necessitate right-turning movements across the central reservation. The busier junctions have been improved by the provision of bridges or underpasses.

A flyover was constructed at the busy Rathfriland Road junction in Banbridge and an underpass at the very dangerous Hillsborough road junction in Dromore was completed in June 2005.[1]

Improved junctions at Banbridge and Hillsborough opened in September 2009,[2] at Loughbrickland in December 2009[3] and at Banbridge Road, Dromore in February 2010.[4]

The scheme involving the dualling of the A1 between Beech Hill and Cloghogue was completed in July 2010, five months ahead of schedule.[5]

Planned developmentsEdit

The Roads Service of Northern Ireland has planned to provide four further grade separated junctions. These schemes are located at:

  • Listullycurran Road, between Dromore and Hillsborough
  • Gowdystown Road, south of Dromore
  • Skeltons Road, between Dromore and Banbridge
  • Waringsford Road, north of Banbridge.

Further measures envisaged to improve safety include a central reservation safety barrier to be constructed from the A1's junction with the M1 at Sprucefield to Loughbrickland. This will involve the closing of many of the dual carriageway's central cross-over points.[6]

The Road Service also plan to improve the link between the M1 and A1 at Sprucefield in a scheme that would include a flyover at Hillsborough, replacing the last remaining roundabout on the route between Dublin and Belfast.[7]


  1. ^ "£4m underpass opens at accident blackspot". Belfast Telegraph. 18 June 2005.
  2. ^ Wilkinson, Paul (15 September 2009). "'FLYOVERS' DUE OPEN AMID WAVE OF COMPAINTS". Dromore Leader. Retrieved 10 October 2010.
  3. ^ Johnston, Wesley (22 December 2009). "A1 grade separated junction, Dublin Road, Loughbrickland". Northern Ireland Roads site. Retrieved 10 October 2010.
  4. ^ Johnston, Wesley (6 February 2010). "A1 grade separated junction – Banbridge Road, Dromore". Northern Ireland Roads site. Retrieved 10 October 2010.
  5. ^ "Newry bypass officially opens five months ahead of time". BBC News Online. 29 July 2010. Retrieved 10 October 2010.
  6. ^ "Eastern Seaboard Corridor – A1 Junctions Phase Two". Northern Ireland Road Service. 2008. Archived from the original (pdf) on 24 April 2011. Retrieved 10 October 2010.
  7. ^ "Eastern Seaboard Corridor – M1/A1 Sprucefield By-Pass". Northern Ireland Road Service. 2008. Archived from the original (pdf) on 24 April 2011. Retrieved 10 October 2010.

Coordinates: 54°23′48″N 6°10′33″W / 54.39665°N 6.17586°W / 54.39665; -6.17586