National Primary Route 11

Opened : 1950s - 2030

Status : Under Development

M11 Motorway Logo


Outside Dublin
Motorway : 86.7 km
D2AP : 28.7 km (40.7 km by 2030)
Single Carriageway : 12 km (0 km by 2030)
Inside Dublin
Urban D2AP : 8.1 km

The N11 is the major artery threading its way south from Dublin through Wicklow, the Garden of Ireland, taking in a number of pleasant seaside towns and finally ending at the major port of Rosslare at the extreme southeastern tip of Ireland.

The road begins around the Stillorgan Dual Carriageway, the first dual carriageway road in the country, built from the 1950s to the 70s. There are only 2 grade separated spots, at UCD and Cherrywood.

As the road reaches the edge of the city, it turns into the M11 Bray bypass, completed in 1991. In the middle of the bypass is a reconstructed section where it ties in with the M50, completed in June 2005. The bypass ends at the south end of Bray and a long, low standard dual carriageway begins. This dual section was created by cobbling short sections built on the cheap from the 1970s to the 1980s. The newest section is the one that was hardest and most controversial to build - the Glen of the Downs, completed in 2003 after a long, arduous campaign against it by Greens who claimed it would destroy the old-growth trees of the glen. Campaigners built treehouses in the trees along the road. Later though, they were forced to move out of these, due to damage inadvertently being inflicted on the area. However, in the end, it seems that only 70 trees were felled. This was achieved by giving the road a narrow profile through the section. The total length of time to complete the project, from start of work, protest, resumption of work, and completion, was around 10 years.

In 2004, a high standard extension of the dual carriageway south as far as the outskirts of Wicklow town was completed. From here, a 16 km winding single carriageway section which used to wend its way through the trees and suffered from a high accident rate was replaced by motorway in July 2015. Next, the route passes the town of Arklow, whose bypass was completed in 1999. Although built to motorway spec, grousing from the locals prevented it getting the designation until 2009. An extension of the road southwards to the far end of the murderous-sounding Gorey was opened between July and September 2007. This part was built to a slightly lower standard than other motorways in the country, though it was apparently still suitable for reclassification to motorway in 2009.

Traffic is generally high on the N11, and even this far from the city, any bottlenecks cause significant problems. The blackspot has now moved south to Enniscorthy, and accordingly the road will be extended even further south to clear this town too, programmed for 2017. From here, it's single carriageway south until, over the River Slaney, the road ends at the N25 at Wexford, where one can continue to the important port of Rosslare using the N25.

As far as traffic levels go, the highest is at Fassaroe just south of the the M11 Bray bypass. At more than 60000 in 2012, this is enough to justify not just motorway, but 6-lane motorway - far in excess of the road's current standard. Traffic levels at the southern end of Gorey are only around 10000 in the middle of summer, though traffic growth on much of Ireland's trunk road network during the boom years was 10% a year.

In 2008, a new junction 11 at Kilpeddar and Delgany opened to traffic, and in 2013 construction kicked off on a motorway services area at Gorey, Co. Wexford. The service area will be completed in late 2015.

In December 2015, construction started on the 27 km Enniscorthy bypass, which also includes new connections to the N80 and N30. This will extend motorway to the village of Oilgate. The new route is expected to open in summer 2019.

With an aim to connect the port of Rosslare to the rest of the country, a dual carriageway is planned to connect the end of the M11 south of Enniscorthy to Rosslare at some point in the 2020s. With recent changes due to Brexit, south-facing ports in Ireland are suddenly much more important, as they can ship freight to and from France without having to use Britain as a landbridge. There is now the possibility that the extension from Enniscorthy to Rosslare could be a full motorway.

There is a long-range plan to widen and upgrade the low-standard non-motorway part of the N11 between Bray (at the M50) and Ashford by 2035. This would involve widening the northern end to 6 lanes - the exact extent of this is not decided - and improvement to motorway standard, as far as possible, of the whole.

Update 19/07/2019: Yesterday on the 18th July the M11 Enniscorthy Bypass opened in County Wexford. The motorway is now 82 km of motorway from Coyne's Cross north of Ashford, Wicklow to Oilgate, south of Enniscorthy. Coyne's Cross to Dublin is mostly dual carriageway. The Taoiseach, Leo Varadkar, attended the official opening, as reported in the media: [1], [2], [3]. Note that the first 2 articles incorrectly describe the motorway segment as 39 km long; in fact the motorway is 27 km and there is a 12 km link road to the N30 west of the town. The third contains a video. also includes some photos of the road.

Other updates:
J4 Bray to Kilmacanogue to J14 Coyne's Cross is at route selection.
N11/N25 Oilgate to Rosslare Harbour is at Feasibility Study.

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Wikipedia page on this road

Pictures of this road

Traffic Counts for this road


Origin Burgh Quay, Dublin
Terminates N25 junction, Wexford
Places Served Dublin, Bray, Greystones, Wicklow, Arklow, Gorey, Enniskerry, Wexford
Routes Spawned -
Intersects M25, M50, N80


Section km Opening Date Standard
Bray - Kilmacanogue ? 1973 D2AP
Glen of the Downs - Kilpeddar ? 1974 D2AP
Newtownmountkennedy BP ? 1990 D2AP
Bray 5.5 1991-10-24 M
Arklow BP 6.8 1999-01-29 M (from 2009-08-28)
Glen of the Downs 5.5 2003-10-22 D2AP
Rathnew / Ashford Bypass (N Section) 5.7 2004-09-27 D2AP
Rathnew / Ashford Bypass (S Section) 8 2004-09-27 M (from 2009-08-28)
Arklow Gorey Bypass (Gorey BP) 13.5 2007-07-04 M (from 2009-08-28)
Arklow Gorey Bypass (Gorey-Arklow) 9.5 2007-09-05 M (from 2009-08-28)
Kilpeddar/Delgany Jct 11 0 2008-03 INTERCHANGE
Arklow to Rathnew 16.4 2015-07-13 M
Gorey Service Area 2019-03-28 MSA
Enniscorthy Bypass 27 2019-07-18 M
Jct 4-14 Widening and Upgrade (22.4) 2025? M/WIDENING
Oilgate to Rosslare Harbour (N11 section) 12 2030? D2AP/M?

MAP OF M11 :