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Ireland has seen over the last decade or two a huge trunk road and motorway building program. The centrepiece of this investment was a network of radial motorways linking Dublin with other cities. Built under the Transport21 program, the bulk of the motorways had a closeout date of 2010, and were completed on time. For decades possessing 19th century road infrastructure, many of the Republic's trunk routes were catapulted into the 21st century in one go.

After 2008, however, Ireland's financial crisis greatly slowed the pace of this infrastructural boom and the remaining schemes in the plan no longer have completion dates. There is no longer an official road development plan and it has been clear for some time now that new road schemes around the country are being built in a fairly random manner, moving to construction as they get through planning, with no attempt being made to create end-to-end improvements of entire routes. This is in contrast to the building of the radial motorways, which were all end-to-end.

Below information can be found on existing and planned roads, including a list of all national roads currently under construction or about to start.


Bolded roads exist or will soon; unbolded may potentially be created in the future. Further discussion on this.

0 M1M2M3M4 M6M7M8M9
1 M11     M17M18 
2M20M21 NEW!M22 M24M25  M28 NEW! 
4M40    M45    

The M45 represents the future Leinster Outer Orbital and has been repeatedly moved to planning and then cancelled. No part of it exists yet and its numbering is uncertain.
Additionally, no sections of the N25 are motorway but the Waterford Bypass narrowly missed getting the designation in 2009 and it is likely that some may be created in future. Therefore it has its own page.
Similarly the Cork Southern Ring Road was renumbered N40 in February 2012. It was formerly a part of the N25. Although it is not a motorway, it is (or will be very soon) motorway standard and may be changed in future. It was therefore also given its own page.
It is planned to build an M21 Adare Bypass which will start at the M20, and in October 2017 it was confirmed that this will be motorway. This is expected to open by 2024.
By 2024, a new motorway, the M28, will be created.

SchemeStandardkmWork StartedOpening Date
R132 Collinstown Cross to Airport RoundaboutD2AP1.32012-02-232013-12
R402 Enfield to EdenderrySC112012-032014-04-14
N5 Ballaghaderreen BypassSC13.62012-11-022014-09-02
N7 Newlands Cross Junction 1A HQDC02013-06-062015-05
M11 Arklow to Rathnew M16.42013-06-062015-07-13
N84 Luimnagh RealignmentSC4.52015-082016-06
M17/M18 Gort-Athenry-Tuam M53.42015-01-152017-09-27
N17 Tuam BP D2AP4.22015-01-152017-09-27

SchemeStandardkmWork StartedOpening Date
M11 Gorey Motorway Service AreaMSA2013-082019-02-14
M9 Kilcullen Motorway Service AreaMSA2014-05-062019-Q3
M6 East Athlone Motorway Service AreaMSA2014-10-012019-06
M11 Enniscorthy Bypass M272016-012019-07-31
N30 Enniscorthy West (M11 Enniscorthy scheme) SC82016-012019-07-31
N80 Enniscorthy North (M11 Enniscorthy scheme) D2AP42016-012019-07-31
N25 New Ross Bypass (West) HQDC3.62016-032019-08
N25 New Ross Bypass (East) D2AP102016-032019-08
N25 New Ross Bypass (N30) SC1.22016-032019-08
N86 Tralee to Dingle (some parts underway, some in planning) SC3220162019?
M7 Jct 9-11 Naas-Newbridge 4 to 6 lanes Widening11.52018-01-062019-04
R407 Sallins Bypass D2AP1.62017-112019-04
R407 Sallins Bypass SC2.02017-112019-04
M7 Jct 9A Osberstown INT02018-01-062019-10
N56 Illustrin to Kilmacrennan SC3.12018-012019-Q2
N56 Dungloe to Glenties (Phase 3 Kilkenny to Letterilly) SC3.62018-01-282019-01
N56 Mountcharles to Inver (Phase 1) SC2.52018-03-122019-Q2

SchemeStandardkm Work StartingOpening DateStatus
N4 Collooney to Castlebaldwin D2AP13.720182020Tender
N4 Collooney to Castlebaldwin SC1.02018-122020Tender
N52 Ardee Bypass SC4.52019-Q12020-Q4Design Review
N8/N25/N40 Dunkettle Interchange HQDC02019-Q12021Pre-construction
N56 Dungloe to Glenties (Phase 4 Letterilly to Kilraine) SC4.920192020Approved
N56 Mountcharles to Inver (Phase 2) SC2.42019?2020Planning
N3 Jct 2 Snugborough Road Interchange Upgrade INT2019?2021Planning
N59 Moycullen Bypass SC4.320212022Planning
N5 Westport to Turlough D2AP23.82019-Q22021-Q2Tender
N78 Athy Southern Distributor Road SC3.320202022Awaiting Approval
N22 Ballyvourney to Macroom D2AP222019-Q32021Tender
M6 Galway City Bypass M10.920212024Awaiting Approval
Galway City Bypass (West End) SC5.520212024Planning app Summer 2018
M28 Cork to Ringaskiddy M10.520212024Planning Granted
N28 Cork to Ringaskiddy SC1.520212024Planning Granted
N2 Slane Bypass D2AP3.2?20232025Route selection
M21 Adare to Rathkeale M
16.720212024Planning App by 2018-12
N69 Rathkeale to Foynes SC15.520212024Planning App by Q3-2018
N5 Ballaghaderreen-Scramoge SC35.120232026Planning decision 2019-Q1
M3 Dunshaughlin Motorway Service Area MSA20182019Planning
M6/M17/M18 Oranmore Motorway Service Area MSA20182019Planning
M18 Newmarket-on-Fergus Motorway Service Area MSA20192020Planning
N69 Listowel BP SC4.82019-Q42021Tender
M20 Limerick-Cork M9620232026Design
N72 Mallow Relief Road SC 20212023Planning
N2 Clontibret-NI Border D2AP24Planning
N2 Ardee-Castleblayney widening D2AP31Planning
N56 Letterkenny Relief Road SC2Planning
N13 Letterkenny-Manorcunningham Improvement D2AP5.8Planning
N14 Letterkenny-Lifford D2AP19Planning
N15 Ballybofey-Stranorlar D2AP14.9Planning
N3 Jct 1-4 M50 to Clonee HQDC/M5Planning
M4 Jct 5-7 Maynooth-Leixlip Widening M38Planning
M7 Jct 28 upgrade INT0Planning
M11/M50 to Kilmacanogue D3AP7.5Planning
N11 Kilmacanogue to Coyne's Cross M14.5Planning
N40 Motorway Reclassification M14.9Planning

Click here for the full project tracker list, including information on all major previous and upcoming road openings.