N64 road

National secondary road

A National Secondary Road (Bóthar Náisiúnta den Dara Grád) is a category of road in Ireland. These roads form an important part of the national route network, but are secondary to the main arterial routes (which are classified as national primary roads. Secondary roads are designated route numbers higher than those used for primary roads, but with the same "N" prefix. Routes N51 and higher are all secondary roads.

National secondary roads have a default speed limit of 100km/h (62.5 mph), as along with national primary routes, they fall into the speed limit category of national roads.

Secondary routes are generally more poorly maintained than primary routes (although can vary widely), but often carry more traffic than regional roads. Some sections of secondary roads (usually approaching urban centres) are dual-carriageway, while many are narrow two-lane country roads, indistinguishable from regional roads.

Many national secondary roads, though not arterial routes between major cities, connect large areas to major population centres. For example, the N59 through County Galway and County Mayo, the N70 road through County Kerry (see Ring of Kerry), the N71 through West Cork. For this reason, many national secondary roads are well-travelled by tourists.

List of national secondary roads

(XXXX) = Junction with road XXXX, e.g. (N21) = Junction with N21 road

National Secondary Roads in Ireland
Road Name	Description	Length
N51 road	Drogheda – Slane (N2) – Navan (N3) – Athboy – Delvin (N52 to Mullingar)
N52 road	(runs around the east of) Dundalk (N1) – Ardee (N2, N33) – Kells (N3) – Delvin (N51) – Mullingar – Tyrrellspass (joins N6) Kilbeggan – Durrow – Tullamore (N80) – Birr (N62) – Borrisokane (N65) – (N7 east of Nenagh)
N53 road	Dundalk to Castleblayney (a short section of the road becomes the A37 where it runs through County Armagh)
N54 road	Monaghan (N2) – Clones – Cavan (N3) (a short section of the road becomes the A3 where it runs through County Fermanagh)
N55 road	(N3 just outside Cavan) – Granard – Edgeworthstown (N4) – (N6 Athlone ringroad)
N56 road	(N15 just east of Donegal) – (R263 near Killybegs) – Glenties – Dungloe – Gweedore – Dunfanaghy – Letterkenny (N14)
N58 road	Foxford (N26) – (N5 between Swinford and Castlebar)
N59 road	(N4 to Sligo) – Ballina (N26) – Bangor Erris – Rosturk – Westport (N5) – Clifden – Oughterard – Moycullen – Galway (N6)
N60 road	Castlebar – Claremorris (N17) – Ballyhaunis – Castlerea – Ballymoe – Roscommon
N61 road	Athlone (N6) – Knockcroghery – Roscommon – Tulsk (N5) – Boyle (N4)
N62 road	N6 near Athlone to N8 at Horse and Jockey) N6 – Ferbane – Cloghan – Birr – Roscrea – Templemore – Thurles – Horse and Jockey (N8)
N63 road	(N63 Galway city to Longford town) Galway – Claregalway – Lackagh – Turloughmore – Abbeyknockmoy – Moylough – Mountbellew – Newbridge – Ballygar – Mount Talbot – Athleague – Roscommon – Lanesborough-Ballyleague – Longford (N5)
N65 road	N6 near Loughrea to N52 at Borrisokane; crossing the River Shannon at Portumna
N66 road	N6 near Loughrea to N18 at Gort
N67 road	Kilcolgan – Kinvara – Ballyvaughan – Lisdoonvarna – Ennistymon (N85) – Kilkee – Kilrush (N68) – (ferry pier near Killimer) (ferry pier near Tarbert) – Tarbert (N69)
N68 road	Kilrush to Ennis
N69 road	Dock Road (Limerick) – Mungret – Clarina – Kildimo – (Askeaton) – Foynes – Tarbert (N67) – Listowel – Tralee (N70, N86, N21)
N70 road	(Comprises most of the Ring of Kerry) - (N70 Killarney Road at Kenmare) – Sneem – Castlecove – Caherdaniel – Waterville – Cahersiveen – Killorglin – (N72) – Milltown – Castlemaine – (N86) – (N21, N69) Tralee
N71 road	(N22) Cork (Wilton Road, Bishopstown Road, Bandon Road) – Halfway bypass – Innishannon – Bandon – Ballinascarthy – Clonakilty – Rosscarbery – Leap – Skibbereen – (R592 to Ballydehob) – Bantry – Ballylickey – Glengarriff – Kenmare – (N70) – Muckross – Killarney (N22, N72)
N72 road	Killorglin – Killarney (N22) – Rathmore – Mallow (N20) – Fermoy (N8) – Lismore – Dungarvan (N25)
N73 road	Mitchelstown (N8) – (N72 east of Mallow)
N74 road	(N8) Cashel – Golden – Kilfeakle – Tipperary (N24)
N75 road	Thurles to the N8 near Two-Mile Borris
N76 road	(N10) Kilkenny Ring Road – Ballymack – Callan bypass – Ninemilehouse – (N24 east of Clonmel)
N77 road	(N10) Kilkenny Ring Road – (N78) – Ballyragget – (N8) at ''Durrow
N78 road	(N77) – Castlecomer – (N80) – Athy – (M9) at Kilcullen
N80 road	(N6) in Moate – Clara – (N52) in Tullamore – Mountmellick – crosses the (M7) at Portlaoise (connects to M7 via R445) – Stradbally – (N78) Carlow – Ballon – (N81) – Kildavin – Bunclody – (N11) near Enniscorthy
N81 road	Dublin (Terenure, Tallaght) – (N82) – Baltinglass – Tullow – (N80 just east of Ballon)
N82 road	Citywest Road (N81 near Tallaght) – (J3 N7 near Clondalkin)
N83 road	Tuam – Dunmore – Cloonfad – Ballyhaunis – Tooreen – N17 south of Charlestown
N84 road	Galway – Cloonboo – Headford – Shrule – Kilmaine – Ballinrobe – Castlebar
N85 road	Ennis (N68) – Ennistymon (N67)
N86 road	Tralee – Annascaul – Lispole – Dingle
N87 road	Belturbet (N3) – Ballyconnell – Swanlinbar – (border with Northern Ireland where it becomes the A32)

Defunct routes

N57 road – Defunct route designation. Swinford – Ballina route prior to its redesignation as the N26 National primary road.
N64 road – Defunct route designation. Oranmore – Claregalway route prior to its redesignation as the N18 National primary road.
N79 road – Defunct route designation. Enniscorthy – New Ross route prior to its redesignation as the N30 National primary road.