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Trunk roads in Ireland

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Trunk roads in Ireland

Ireland has an extensive network of public roads which connect all parts of the country with each other. Roads in Ireland are currently classified as motorways, National Primary routes, National secondary routes, Regional roads and Local roads. The introduction of this classification system began in 1977.

Prior to this,

Evidence that the Trunk Road and Link Road classification and numbering system had been well established by the 1950s is found in

This current system of road classification and numbering has its origins in the late 1960s: the Minister for Local Government, Statutory Instrument S.I. No. 164/1977 on 1 June 1977. Twenty-five National Primary routes (N1-N25) and thirty-three National Secondary routes (N51-N83) were initially designated.

The changeover to the new system was gradual: a route planning map of Ireland from the late 1970s (or early 1980s), divided into a southern section, shows a mixture of Trunk Road, Link Road and National route numbers.

Trunk Roads and Link Roads


Major roads were marked with "T" for Trunk Road, less important roads were marked with "L" for Link Road.

Trunk Roads connected major towns to each other while passing through smaller towns and villages.

Several trunk routes were designed to connect towns in different regions of Ireland (for example, the T41 from Enfield to Kilrush, via Tullamore, Portumna, Scariff and Ennis) while other roads (for example, the T66 Ring of Kerry route) were designated scenic routes.

Link Roads connected smaller towns and villages to each other and to the Trunk Road network.

There were eighty-four Trunk Roads in total, numbered from T1 to T77 consecutively (plus T4a, T11a, T12a, T21a, T28a, T50a and T72a). Roads with the 'a' suffix branched off roads with the same number. For example, the T4a branched off the T4 at Ballinasloe in County Galway and the T12a branched off the T12 to serve Cobh in County Cork.

The first nine Trunk Roads (T1, T2, T3, T4, T4a, T5, T6, T7, T8) radiated out from Dublin (with the T8 branching off the T7 at Enniscorthy) and followed an anti-clockwise pattern. This pattern was similar to the existing anti-clockwise pattern which the National routes and motorways radiating out of Dublin now follow. The pattern was interrupted by the T35 (Dublin-Cavan-Donegal route) which came between the T2 and the T3 and the T42 (now N81), T43 and T44 which came between the T5 (T6) and the T7 routes.

Unlike the present system, where each road (whether N- or R-) has a unique number, under the Trunk and Link Road system, Link Roads were numbered separately beginning with L1. These L (for Link Road) numbers are not related to the current Lxxxx numbers for Local Roads.

Confusingly, some old road signs still show the former (now obsolete) Trunk and Link road-numbers.

Trunk Roads were broadly equivalent to the present National routes, and Link Roads to the present Regional roads. Most of the National Primary and National Secondary routes had been Trunk Roads and generally they followed the routes of these Trunk Roads, albeit with a different numbering system. However, some National Primary and Secondary routes also incorporated Link Roads and unclassified roads into their routes. After the introduction of the new road numbering system, some Trunk Roads (either in whole or in part) were downgraded to Regional roads, effectively 'de-trunked'Trunk road#De-trunking: Ireland.

A notable feature of the former system was multiplexing (or concurrency), where a section of road was designated by two or more route numbers. Examples of multiplexes include the T7/T12 multiplex between New Ross and Waterford, the T6/T13 multiplex between Cahir and Kilheffernan (east of Clonmel), the T28/T36 multiplex between Newcastlewest and Abbeyfeale and the short T19/T21 multiplex between Thurles and Toor. The road between Cavan, Butlersbridge, Cloverhill and the border with Northern Ireland (near Wattle Bridge in County Fermanagh) was a triple multiplex of the T10, T15 and T35 routes.

Three routes (T15, T22, T35) had sections which were disconnected from the rest of the route by roads which crossed through Northern Ireland. These routes lost their Trunk Road designations through Northern Ireland, regaining them on exiting Northern Ireland. The T15 crossed the border several times between Cavan and Clones, alternating between the T15 and the A3 designations.

List of Former Trunk Roads in Ireland

Route descriptions show start and end points and selected intermediate destinations and junctions. The current designations of routes (or route sections) is then given.

Multiplex sections (for example, New Ross-Waterford (multiplex with T12)) are shown in italics. Sections of routes through Northern Ireland (with different designations) are shown in bold (for example, border-A37-Cullaville-A37-border or border-(to Belfast via A1)).

Road From To Route Description
T1 Dublin (Belfast) Dublin-Swords-Balbriggan-Drogheda-Dunleer-Dundalk-border-(to Belfast via A1). Now mainly R132 (re-classified, old N1 prior to opening of M1 (Republic of Ireland) and various bypasses).
T2 Dublin (Derry) Dublin-Ashbourne-Slane-Collon-Ardee-Carrickmacross-Castleblayney-Monaghan-Emyvale-border-(to Derry via A5). Now R135 (sections of former N2 bypassed by HQDC between M50 and Ashbourne and various bypasses) and N2 (Ashbourne-border).
T3 Dublin Sligo Dublin-Lucan-Leixlip-Maynooth-Enfield-Kinnegad-Mullingar-Edgeworthstown-Longford-Roosky-Dromod-Carrick-on-Shannon-Boyle-Collooney-Sligo. Now N4 (Dublin-Lucan), R148 (sections of former N4 bypassed by M4 and various bypasses) (Lucan-Kinnegad) and N4 (Kinnegad-Sligo).
T4 (Dublin) Galway (Dublin)-Kinnegad-Rochfortbridge-Kilbeggan-Moate-Athlone-Ballinasloe (multiplex with T31)-Kilconnell-Kiltullagh-Athenry-Derrydonnell-Oranmore-Galway. Now R446 (sections of former N6 bypassed by M6 and various bypasses) (Kinnegad-Athlone), N6 (Athlone-Ballinasloe), R348 (Ballinasloe-Derrydonnell) and old N6 (Derrydonnell-Oranmore-Galway).
T4a Ballinasloe Loughrea (Dublin)-Ballinasloe-Garbally-Aughrim-Kilreekill-Kilmeen-Loughrea (multiplex with T21). Now N6 (Ballinasloe-Loughrea), as it was prior to the opening of the Loughrea bypass and other improvements. Multiplexed with T21 from Kilmeen to Loughrea.
T5 Dublin Limerick Dublin-Naas-Newbridge-Kildare-Monasterevin-Portlaoise-Mountrath-Borris-in-Ossory-Roscrea-Nenagh-Lisnagry-Limerick. Now N7 (Dublin-Naas), R445 (sections of former N7 bypassed by M7 and various bypasses) (Naas-Portlaoise), N7 (Portlaoise-Lisnagry) and R445 (Lisnagry-Limerick).
T6 (Dublin) Cork (Dublin)-Naas-Kilcullen-Athy-Castlecomer-Henebry's Cross-Kilkenny (multiplex with T14)-Callan-Ninemilehouse-Kilheffernan-Clonmel-Cahir (multiplex with T13)-Kilbehenny-Mitchelstown-Moorepark-Fermoy-Rathcormac-Watergrasshill-Glanmire-Cork. Now R448 (section of N9 bypassed by M9) (Naas-Kilcullen), N78 (Kilcullen-Henebry's Cross), N77 (Henebry's Cross-Kilkenny), N76 (Kilkenny-near Clonmel), old N24 (prior to opening of Clonmel bypass) (nr Clonmel-Cahir), R670 road, R639 (sections of former N8 bypassed by M8 and various bypasses) (Cahir-nr Kilbehenny), N8 (nr Kilbehenny-Moorepark), and R639 (Moorepark-Cork).
T7 Dublin Waterford Dublin-Stillorgan-nr St. Colmcille's Hospital, Loughlinstown-nr Shankill-Fassaroe-Newtownmountkennedy-Rathnew-Rathdrum-Avoca-Woodenbridge-Arklow-Gorey-Frankfort-Enniscorthy-New Ross-Waterford (multiplex with T12). Now N11 (Dublin-nr St. Colmcille's Hospital, Loughlinstown), Local road (Dublin Rd.) (nr St. Colmcille's Hospital, Loughlinstown-nr Shankill), part of R119 (nr Shankill-Fassaroe), old N11 (Fassaroe-Newtownmountkennedy), R772 (through Newtownmountkennedy), old N11 (Newtownmountkennedy-Rathnew), R752 (Rathnew-Woodenbridge), R747 (Woodenbridge-Arklow), R772 (Arklow-Gorey-Frankfort), N11 (Frankfort-Enniscorthy), N30, ex-N79 (Enniscorthy-New Ross) and N25 (New Ross-Waterford). Note: 'old N11' refers to sections of N11 prior to dualling.
T8 Enniscorthy Rosslare (Dublin)-Enniscorthy-Oylgate-Ferrycarrig Bridge-Wexford-Blackhorse-Killinick-Rosslare. Now N11 (Enniscorthy-Ferrycarrig Bridge), part of R730 (former sections of N11 & N25 through Wexford prior to opening of Wexford bypass) (Ferrycarrig Bridge-Wexford-Blackhorse) and N25 (Blackhorse-Rosslare).
T9 Dundalk Cahir Dundalk-Ardee-Kells-Delvin-Mullingar-Kilbeggan-Tullamore-Ballard-Cadamstown-Kinnitty-Boheraphuca-Ballybritt-Roscrea-Templemore-Thurles-Holycross-Cashel-Cahir-(to Cork via T6). Now N52 (Dundalk-Mullingar), Local road (old route of N52 via Ballinagore) (Mullingar-Kilbeggan), N52 (Kilebggan-Tullamore-Ballard), R421 (Ballard-Kinnitty), Local routes via Boheraphuca (Kinnitty-Ballybritt), R421 (Ballybritt-Roscrea), N62 (Roscrea-Thurles), R660 (Thurles-Holycross-Cashel) and R639, old N8 (Cashel-Cahir). Joined T6 to Cork at Cahir.
T10 (Enniskillen) Mullingar (from Enniskillen)-Wattle Bridge-border-Cloverhill-Butlersbridge-Cavan (multiplex with T35 & T15)-Ballinagh (or Bellananagh)-nr Kilcogy (multiplex with T15)-Finnea-Castlepollard-Mullingar. Started at border nr Wattle Bridge as continuation of A4/A34 route from Enniskillen. Multiplexed with the T35 & T15 from border to Cavan via Butlersbridge. Now N54 (border-Butlersbridge), old N3 (prior to opening of bypasses)(Butlersbridge to Cavan), N55 (Cavan to near Kilcogy), multiplexing with the T15 for this section, and R394 (nr Kilcogy-Mullingar).
T11 Cork (Sligo) Cork-Mallow-Buttevant-Charleville-Croom-Patrickswell-Limerick-Bunratty-Hurler's Cross-Newmarket on Fergus-Ennis-Crusheen-Gort-Coole-Lydican-Drumharsna-Owenbristy-Kiltiernan-Kilcolgan-Clarinbridge-Oranmore-Galway (multiplex with T4)-Claregalway-Tuam-Dunmore-Cloonfad-Ballyhaunis-Tawnyinah-Charlestown-Tubbercurry-Collooney-joined T3 to Sligo. Main route along western side of Ireland from Cork to Sligo via Limerick and Galway. Followed various pre-improvement National and Local routes: Cork-Limerick (N20), Limerick-Coole (north of Gort) (N18), Coole-Kiltiernan (current Local roads), Kiltiernan-Oranmore (N18), Oranmore-Galway (N6), Galway-Tuam (N17), Tuam-near Tavraun (approx. 14 km/8.75 miles north of Ballyhaunis) (N83), Tavraun-Lurga Lower (approx. 5 km/3miles south of Charlestown) via Tawnyinah (current Local roads), Lurga Lower-Charlestown-Collooney (N17), joined T3 to Sligo at Collooney.
T11a Dunmore Ballymoe Dunmore-Williamstown-Ballymoe. Followed route of current R360 from Dunmore to Ballymoe, connected T11 to T39 (now N60).
T12 Cork Wexford Cork-Dunkettle-Carrigtwohill-Midleton-Castlemartyr-Killeagh-Youghal-Dungarvan-Joulterspark-Lemybrien-Kilmeaden-Waterford-New Ross (multiplex with T7)-Wexford. Followed route of pre-improvement N25 from Cork to Wexford. Multiplexed with T7 from Waterford to New Ross.
T12a (Cork) Cobh (Cork)-Cobh Cross-Cobh. Followed route of current R624, connecting Cobh with the T12 (now N25) at Cobh Cross.
T13 Limerick Waterford Limerick-Tipperary-Bansha-Cahir-Clonmel-Kilheffernan (multiplex with T6)-Carrick on Suir-Mooncoin-Waterford. Followed route of pre-improvement N24 between Limerick and Waterford. Multiplexed with T6 between Cahir and Kilheffernan (east of Clonmel, at the current junction of the N24 and the N76).
T14 Waterford Tullamore Waterford-Mullinavat-Ballyhale-Knocktopher-Stoneyford-Kilkenny-Henebry's Cross (multiplex with T6)-Ballyragget-Ballinakill-Abbeyleix-Portlaoise-Mountmellick-Tullamore. Followed various pre-improvement National and Regional routes: Waterford-nr Ballyhale (current N9/southern N10 junction) (N9), nr Ballyhale-Kilkenny (southern N10), Kilkenny-Henebry's Cross (junction of the N77 and N78, multiplex with T6)-Ballyragget (N77), Ballyragget-nr Abbeyleix (R432), nr Abbeyleix-centre of Abbeyleix (R340 Ballinakill Road), Abbeyleix-Portlaoise (N8), Portlaoise-Mountmellick-Tullamore (N80).
T15 (Galway) (Monaghan) (Galway)-Roouanmore-Lackagh-Turloughmore-Moylough-Mountbellew-Athleague-Roscommon-Lanesborough-Longford-Ballinalee-Granard-nr Kilcogy-Ballinagh (or Bellananagh)-Cavan (multiplex with T10)-Butlersbridge-Leggykelly (multiplex with T10-T35)-border-A3-County Fermanagh-border-re-entered County Cavan-T15-border (Derrynure)-A3-County Fermanagh-border-entered County Monaghan-T15-Clones-Smithborough-Monaghan Town-border (Tamlat)-(to Armagh via A3). Roounamore (near Lackagh, junction of T11 & T15, now junction of N17 & N63)-Roscommon-Longford (N63), Longford-Granard (section of R194), Granard-Cavan (N55), Cavan-Butler's Bridge (N3), Butler's Bridge-Clones-Monaghan (N54,A3: crossing border several times), Monaghan-border (N12), joined A3 to Armagh & Belfast.
T16 (Enniscorthy) Portlaoise (Enniscorthy)-Ballynahallin-Bunclody-Ballon-Carlow-Ballickmoyler-Arless-Stradbally-Portlaoise. Followed route of southern part of N80 from Ballynahallin (current junction of N11 & N80, then junction of T16 & T7) nr Enniscorthy-Carlow-Portlaoise.
T17 Sligo (Enniskillen) Sligo-Manorhamilton-Blacklion-border-(to Enniskillen and Belfast via A4 and, later, NI's M1). Sligo-border at Blacklion (N16), joined A4 to Enniskillen & Belfast.
T18 Sligo (Derry) Sligo-Grange-Drumcliffe-Bundoran-Ballyshannon-Donegal-Ballybofey-Stranorlar-Killygordon-Castlefin-Cloghfin-border-Clady-(to Strabane and Derry via B85-A5). Followed N15 (as it was prior to the Ballyshannon/Bundoran and Donegal bypasses) from Sligo to Cloghfin near the border, continued across border to Clady, County Tyrone, then from Clady to Strabane (B85), joined A5 to Derry.
T19 Kilkenny (Limerick) Kilkenny-Freshford-Urlingford-Turnpike (multiplex with T36)-Thurles-Toor (multiplex with T21)-Ballycahill-Rosmult-Milestone-Inch-Anglesey Bridge-Rear Cros-Newport-Lisnagry-(to Limerick via T5). Followed various National and Regional routes: Kilkenny to Urlingford (R693), multiplexed with T36 (part of the old N8, now R639) from Urlingford to Turnpike (junction of old N8 and N75), Turnpike-Thurles (N75), Thurles-Toor (now junction of R498 and R503) via R498, Toor-Lisnagry (R503), joined T5 (old N7, now R445) to Limerick.
T20 Kilkenny New Ross Kilkenny-Bennettsbridge-Thomastown-Inistioge-New Ross. Connected Kilkenny with New Ross via Thomastown, following the route of the R700.
T21 Thurles (Galway) Thurles-Toor (multiplex with T19)-Borrisoleigh-Nenagh-Borrisokane-Portumna-Killimor-Ballydavid-Killmeen-Loughrea (multiplex with T4a)-Craughwell-Derrydonnell (to Galway via T4). Thurles-Nenagh (R498), Nenagh-Portumna-Loughrea (N65), Loughrea-Derrydonnell (route of pre-Loughrea bypass N6), joined T4 to Galway.
T21a Borrisokane Moneygall Borrisokane-Cloughjordan-Moneygall. Connected T21 (now part of N65) & T33 (now part of N52) at Borrisokane to T5 (now N7) at Moneygall, following current R490 route via Cloughjordan.
T22 Dundalk Castleblayney Dundalk-border-A37-Cullaville-A37-border-re-entered County Monaghan-T22-Castleblayney. Dundalk-Castleblayney, via Cullaville in Northern Ireland as A37. Now N53/A37.
T23 Dundalk (Armagh) Dundalk-Kilcurry-border-(to Newtownhamilton, Keady and Armagh via A29). Dundalk-border via Kilcurry, following R177 route, joined A29 to Armagh.
T24 Dundalk Granard Dundalk-Chanonrock-Carrickmacross-Corvally-Shercock-Bailieborough-Virginia-Ballyjamesduff-Ballymachugh-nr Finnea-Granard. Dundalk-Virginia (R178), Virginia-Granard (R194), joined T31 & T15) at Granard.
T25 (Drogheda) Collon (Drogheda)-Collon. Branched off T1 (via part of the T26, now N51) nr Drogheda, went to Collon. Connected T1 & T2. Followed current R168 route.
T26 Drogheda Kinnegad Drogheda-Slane-Navan-Bective Abbey-Trim-Kinnegad. Drogheda-Slane-Navan (N51), Navan-Trim-Kinnegad (R161), joined T3 & T4 at Kinnegad.
T27 (Youghal) Clonmel (Youghal)-Kinsalebeg-Clashmore-Modeligo-Halfwayhouse Inn-Ballymacarbry-Clonmel. Connected T12 (now N25) at Kinsalebeg, nr Youghal, with Clonmel. Followed current R671.
T28 (Limerick) Tralee (Limerick)-Patrickswell-Adare-Rathkeale-Newcastlewest-Abbeyfeale (multiplex with T36)-Castleisland-Caherbreagh-Tralee. Now N21 (as it was prior to opening of vavPatrickswell and Tralee.
T28a Castleisland Farranfore Castleisland-Farranfore. Now N23.
T29 (Tralee) Cork (Tralee)-Caherbreagh-Farranfore-Killarney-Ballyvourney-Macroom-Coachford-Carrigrohane-Cork. Caherbreagh (junction with the T28, now junction of the N21 & N22)-Killarney-Macroom (pre-improvement N22), Macroom-Coachford-Carrigrohane (R618), then Carrigrohane Road to Cork.
T30 (Dungarvan) (Killarney) (Dungarvan)-Joulterspark-Cappoquin-nr Lismore-Ballyduff-Fermoy-Castletownroche-Mallow-Rathmore-Clasheen-(to Killarney via T29). Now part of N72 (Joulterspark-nr Lismore), R666 (nr Lismore-Fermoy) and part of N72 (Fermoy-Clasheen). Joined T29 (now N22) to Killarney.
T31 Portumna Granard Portumna-Ballinasloe-Athlone (multiplex with T4)-Ballymahon-Edgeworthstown-Granard. Now R355 (Portumna-Ballinasloe), part of N6 (Ballinasloe-Athlone) and part of N55 (Athlone-Granard).
T32 Roscrea (Athlone) Roscrea-Birr-Cloghan-Ferbane-Fardrum-(to Athlone via T4). Now part of N62.
T33 Birr Borrisokane Birr-Ballingarry-Borrisokane. Now part of N52.
T34 Athlone Boyle Athlone-Roscommon-Tulsk-Boyle. Now N61.
T35 Dublin (Donegal) Dublin-Clonee-Dunshaughlin-Navan-Kells-Virginia-Cavan-Butlersbridge-Cloverhill-border-(multiplex with T10-T15)-A3-Wattle Bridge-A34-Newtownbutler-Lisnaskea-Tamlaght-A4-Enniskillen-A32-Irvinestown-A35-Kesh-border-T35-Pettigo-Laghey-(to Donegal via T18). Now N3 (Dublin-Butlersbridge), N54 (Butlersbridge-border nr Wattle Bridge), A3-B533 (Wattle Bridge-Netwownbutler)-A34 (Newtownbutler-Lisniskea)-B514 (Lisnaskea-Tamlaght)-A4-A32-A35, R232 (Pettigo-Laghey), N15 (ex-T18).
T36 Abbeyleix Listowel Abbeyleix-Durrow-Cullahill-Urlingford-Turnpike (multiplex with T19)-Horse and Jockey-Cashel-Golden-Tipperary-Emly-Kilmallock-Charleville-Drumcolliher-Feohanagh-Newcastlewest-Abbeyfeale (multiplex with T28)-Duagh-Listowel. Now part of R639 (old N8) (Cullahill-Cashel), N74 (Cashel-Tipperary), R515 (Tipperary-Drumcolliher), R522 (Dromcolliher-Newcastlewest), N21 (Newcastlewest-Abbeyfeale), R555 (Abbeyfeale-Listowel).
T37 Cashel (Kilkenny) Cashel-Dually-Ballinure-Laffansbridge-Killenaule-Ballingarry-Ballyline-Ballymack-(to Kilkenny via T6). Now R691.
T38 Mitchelstown Mallow Mitchelstown-Kildorrery-Mallow. Now N73.
T39 Roscommon Louisburgh Roscommon-Ballymoe-Castlerea-Ballyhaunis-Claremorris-Balla-Castlebar-Westport-Louisburgh. Now N60 (Roscommon-Castlebar), N5 (Castlebar-Westport) and part of R335 (Westport-Louisburgh).
T40 (Sligo) Galway (Sligo)-Ballysodare-Beltra-Dromore West-Easky-Rathlee-Kilglass-Enniscrone-Corraun-Ballina-Foxford-Strade-Bellavary-Castlebar-Ballintubber-Partry-Ballinrobe-Kilmaine-Shrule-Headford-Galway. Now part of N59 (Ballysodare-Dromore West), R297 (Dromore West-Carraun), re-joins N59 (Corraun-Ballina), part of N26, ex-N57 (Ballina-Foxford), N58 (Foxford-Bellavary), N5 (Bellavary-Castlebar) and N84 (Castlebar-Galway).
T41 Enfield Kilrush (Dublin)-Enfield-Edenderry-Daingean-Ballinagar-Clonmore-Cappincur-Tullamore-Screggan-Blue Ball-Kilcormac-Birr-Riverstown-Pike-Portland-Portumna-Power's Cross-Gorteeny-Mountshannon-Scariff-Tuamgraney-Bodyke-Moymore-Spancil Hill-Ennis-Darragh-Caherea-Lissycasey-Knockalough-Kilrush. Now part of R402 (Enfield-Ballinagar), Local road (Ballinagar-Clonmore-Cappincur-Tullamore), part of N52 (Tullamore-Riverstown), R489 (Riverstown-Portland), part of N65 (Portland-Portumna) and R352 (Portumna-Ennis) and N68 (Ennis-Kilrush).
T42 Dublin Clash Dublin-Templeogue-Tallaght-Brittas-Blessington-Baltinglass-Rathvilly-Tullow-Clash-(joined T16). Now N81.
T43 Dublin (Bray) Dublin-Milltown-Windy Arbour-Dundrum-Sandyford-Stepaside-Kiltiernan-Enniskerry-Fassaroe-(Bray). Now R117.
T44 Dublin (Shankill) Dublin-Ballsbridge-Merrion-Booterstown-Blackrock-Monkstown-Dun Laoghaire-Dalkey-Killiney-(Shankill)-(to Bray via T7). Now part of R118 (Lwr. Mount St.-Northumberland Rd.-Pembroke Rd.- Merrion Rd.- Rock Rd.-Blackrock), part of N31 (Blackrock-Frascati Rd.-Dun Laoghaire) and part of R119 (Dun Laoghaire-Marine Drive-Upr. Georges St.-Summerhill Rd.-Glasthule Rd.-Sandycove Rd.-Breffni Rd.-Ulverton Rd.-Dalkey-Castle St.-Sorrento Rd.-Vico Rd.-Station Rd.-Killiney-Seafield Rd.-Killiney Hill Rd.-Shanganagh Rd.-(joined Dublin Rd., former T7)-(to Shankill & Bray via T7).
T45 Clones (Newry) Clones-Killeevan-Newbliss-Ballybay-Castleblayney-Milltown-border-(to Newtownhamilton & Newry via A25). Now R183 (Clones-Castleblayney) andR182 (Castleblayney to border).
T46 Carrickmacross Ballybay Carrickmacross-Ballybay. Now R180.
T47 Tullamore (Athlone) Tullamore-Clara-Moate-(to Athlone via T4). Now part of N80.
T48 Durrow (Borris-in-Ossory) Durrow-Ballycolla-Aghaboe-Sentry Hill-(to Borris in Ossory and Roscrea via T5). Now R434.
T49 Cashel Clonmel Cashel-Rosegreen-Ballyclerahan-Clonmel. Now R688.
T50 Mitchelstown (Limerick) Mitchelstown-Ballylanders-Knocklong-Hospital-Newline (multiplexed with T57)-Caherconlish-Beary's Cross-(to Limerick via T13). Now R513.
T50a Kilmallock (Limerick) Kilmallock-Bruff-Holy Cross-nr Ballybricken-(to Limerick via T57). Now part of R512.
T51 Kilcullen Kilkenny (Dublin & Naas)-Kilcullen-Timolin-Moone-Castledermot-Carlow-Leighlinbridge-Paulstown-Kilkenny. Now N9 (Kilcullen-Paulstown) and N10 from (Paulstown-Kilkenny).
T52 (Drumsna) Belturbet (Drumsna)-Annaduff-Mohill-Cloone Grange-Carrigallen-Killeshandra-Milltown Abbey-Lisnamaine-Kilconney-Belturbet-Sugarloaf-Gannons Cross-joined T10-T35 multiplex. Now R201 (Annaduff-Lisnamaine), N87, former R200 (Lisnamaine-Kilconney), N3 (Kilconney-Belturbet-Sugarloaf) and R197 (Sugarloaf to Gannons Cross).
T53 Dromod Swanlinbar Dromod-Mohill-Garvagh-Fenagh-Ballinamore-Gortmore-Swanlinbar-border-(to Enniskillen via A32-A4). Now R202 (Dromod to Gortmore) and N87, former R200 (Gortmore to border). Joined A32 at border (to Enniskillen).
T54 Carrick on Shannon Bundoran Carrick on Shannon-Leitrim-Drumgorman-Drumshanbo-Tarmon-Drumkeeran-Killarga-Manorhamilton-Glenade-Kinlough-Bundoran. Now R280 (Carrick on Shannon-Drumgorman), R207 (Drumgorman-Drumshanbo), R208 (through Drumshanbo: Church Street-bridge over River Shannon), R280 (bridge-Bundoran).
T55 (Carrick on Shannon) Fenagh (Carrick on Shannon)-Drumheckil-Keshcarrigan-Fenagh-joined T53. Now R209.
T56 Carrick on Suir (Kilkenny) Carrick on Suir-Ballinacluna-(Kilkenny via T6). Now R696.
T57 Limerick Emly Limerick-Ballyneety-nr Ballybricken-Mohane-Newline-Hospital (multiplexed with T50)-Emly (joined T36). Limerick-nr Ballybricken (R512), nr Ballybricken-Mohane (R514), Mohane-Hospital (R513), Hospital-Emly (R516).
T58 Ballina Belmullet Ballina-Crossmolina-Bellacorick-Bangor Erris-Bunnahowen-Belmullet. Now N59 (Ballina-Bangor Erris) and R313 (Bangor Erris-Belmullet).
T59 Stranorlar (Derry) Stranorlar-Kilross-Letterkenny-Manorcunningham-Newtown Cunningham-Speenoge-Bridge End-border-(to Derry via A2). Now N13. Stranorlar to Letterkenny was originally classified as a National Secondary route (part of the N56) when the national road numbering system was implemented. However, it was upgraded to National Primary route status in the 1990s as a southern extension to the N13.
T60 (Letterkenny) Lifford (Letterkenny)-nr Corkey-Lifford-border-A38-Strabane-(to Derry & Dublin via A5). Now N14, became A38 at border to junction with A5.
T61 (Bray) Rathdrum (Bray)-Kilmacanogue-Killough-Roundwood-Annamoe-Laragh-Rathdrum. Now R755.
T62 (Dundalk) (Omeath) (Dundalk)-Ballymascanlan-The Bush-Carlingford-Omeath-Cornamucklagh-border-(to Newry via B79). Now R173 (Cooley Peninsula drive).
T63 Waterford Dungarvan Waterford-Tramore-Annestown-Knockmahon-Bunmahon-Stradbally-Dungarvan. Now R675 (Waterford-Bunmahon), Local routes (bunmahon-Ballyvoile) and rejoins R675 (Ballyvoile-Dungarvan).
T64 Macroom (Bantry) Macroom-Kilbarry-Inchigeelagh-Ballingeary-Kealkill-Ballylickey-(to Bantry via T65). Now R584 (Macroom-Ballylickey).
T65 Killarney Cork Killarney-Kenmare-Glengarriff-Bantry-Scart-Aghaville-Drimoleague-Dunmanway-Enniskeane-Bandon-Inishannon-Halfway-Cork. Now N71 (Killarney-Scart), R586 (Scart-Bandon), rejoined old N71 (as it was prior to improvements between Cork and Inishannon, including Halfway bypass) (Bandon-Cork).
T66 Tralee Kenmare Tralee-Castlemaine-Killorglin-Glenbeigh-Cahirciveen-Waterville-Caherdaniel-Sneem-Parknasilla-Kenmare (part of Ring of Kerry route). Now N70 (part of Ring of Kerry route).
T67 Killorglin Killarney Killorglin-Killarney (part of Ring of Kerry route). Now part of N72 (part of Ring of Kerry route).
T68 Limerick Dingle Limerick-Kildimo-Askeaton-Foynes-Tarbert-Listowel-Tralee-Camp-Annascaul-Dingle. Now N69 (Limerick-Listowel-Tralee) and N86 (Tralee-Dingle).
T69 Kilcolgan Kilrush Kilcolgan-Kinvara-Ballyvaughan-Lisdoonvarna-Ennistymon-Lahinch-Milltown Malbay-Quilty-Doonbeg-Kilkee-Kilrush. Now N67.
T70 Ennistymon Ennis Ennistymon-Ennis. Now N85 (was Regional route until 1990s).
T71 Galway Bangor Erris Galway-Moycullen-Oughterard-Maam Cross-Recess-Clifden-Letterfrack-Kylemore Abbey-Leenane-Carrowkennedy-Liscarney-Westport-Newport-Mulrany-Ballycroy-Bangor Erris. Now part of the N59.
T72 Donegal Letterkenny Donegal-Inver-Dunkineely-Five Points-Ardara-Kilrean-Glenties-Lettermacaward-Dungloe-Burtonport-Kincasslagh-Crolly-Dore-Bunbeg-Brinlack-Gortahork-Falcarragh-Dunfanaghy-Creeslough-Cashel-Carrigart-Milford-Ramelton-Letterkenny (West Donegal Coastal Route). Large parts of this route were identical to the N56 (West Donegal Coastal Route), but the T72 diverged from the existing N56 between Dungloe and Crolly (via Burtonport and Kincasslagh) following the route of the R259. The next divergence was from near Dore to Gortahork via Bunbeg and Brinlack with the T72 following the route of the R257. The T72 followed a very different route from Creeslough to Letterkenny compared to the N56. Just south of Creeslough, the T72 turned north-east to Carrigart via Cashel. From Carrigart it went south towards Letterkenny via Milford and Ramelton. The section of the T72 between Creeslough and Letterkeeny is now the R245.
T72a Donegal Malin More (Donegal)-Five Points-Killybegs-Kilcar-Glencolumbkille-Malin More. Now part of R263.
T73 Speenoge (Derry) Inishowen Ring: Speenoge-Burnfoot-Fahan-Buncrana-Drumfree-Clonmany-Ballyliffen-Carndonagh-Gleneely-Moville-Whitecastle-Quigley’s Point-Muff-border (Culmore)-(to Derry via A2). The route of the T73 was almost identical to the route of the R238 (Inishowen Ring), except for the section between Carndonagh and Gleneely which did not follow the line of the present route of the R238 from Carndonagh to Culdaff to Gleneely. Instead the T73 went directly between Carndonagh and Gleneely following the line of a current Local route.
T74 Letterkenny (Derry) (Letterkenny)-Newtown Cunningham-Speenoge-Bridge End-border-(to Derry via A2). Now part of the N13, A2 from border.
T75 (Dungarvan) (Clonmel) (Dungarvan)-Ballymacmague South-Halfway House Inn-(to Clonmel via T27). Now part of the R672.
T76 Borrisoleigh Templemore Borrisoleigh-Templemore. Now the R501.
T77 Longford Foxford Longord-Strokestown-Tulsk-Frenchpark-Ballaghaderreen-Charlestown-Swinford-Foxford. Longford to Swinford is now part of the N5, Swinford to Foxford is now part of the N26.

See also

References

External links

  • Ministry of Transport Act, 1919
  • S.I. No. 55/1926 — Road Signs and Traffic Signals Regulations, 1926
  • S.I. No. 284/1956 — Traffic Signs Regulations, 1956
  • Local Government (Roads and Motorways) Act, 1974
  • S.I. No. 164/1977 — Local Government (Roads and Motorways) Act, 1974 (Declaration of National Roads) Order, 1977.

de:Straßensystem in Irland fr:Liste des autoroutes d'Irlande ga:Bóithre agus mótarbhealaí in Éirinn gv:Raaidyn ayns Pobblaght Nerin it:Strade irlandesi nl:Hoofdverkeerswegen in Ierland

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