The N51 road is a

national secondary road A national secondary road ( ga, 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 ...

Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...

. West to east, it starts in

Delvin Delvin () is a village in County Westmeath, Ireland; it is located on the N52 road at a junction with the N51 to Navan. The town is from Mullingar (along the N52). The word Delvin comes from Delbhna. That tribe settled in what is present-d ...

County Westmeath "Noble above nobility" , image_map = Island of Ireland location map Westmeath.svg , subdivision_type = Sovereign state, Country , subdivision_name = Republic of Ireland, Ireland , subdivision_type1 = Provinces o ...

at a junction with the N52. It passes through

Athboy Athboy () is a small agricultural town located in County Meath. The town is located on the ''Yellow Ford River'', in wooded country near the County Westmeath border. Local Clubs are Clann Na nGael and Athboy Celtic. History In medieval tim ...

, a junction with M3 motorway,

Navan Navan ( ; , meaning "the Cave") is the county town of County Meath, Republic of Ireland, Ireland. In 2016, it had a population of 30,173, making it the List of urban areas in the Republic of Ireland by population, tenth largest settlement in ...

and

Slane Slane () is a village in County Meath, in Ireland. The village stands on a steep hillside on the left bank of the River Boyne at the intersection of the N2 (Dublin to Monaghan road) and the N51 (Drogheda to Navan road). As of the 2016 census ...

, where it crosses the

N2 road This is a list of roads designated N2. Roads entries are sorted in alphabetical order by country. * N2 (Bangladesh), connects Dhaka and Tamabil via Sylhet * N2 road (Belgium), connects Brussels and Maastricht * National Road 2 (Democratic Repub ...

, all in

County Meath County Meath (; gle, Contae na Mí or simply ) is a county in the Eastern and Midland Region of Ireland, within the province of Leinster. It is bordered by Dublin to the southeast, Louth to the northeast, Kildare to the south, Offaly to the sou ...

, before crossing the

M1 motorway The M1 motorway connects London to Leeds, where it joins the A1(M) near Aberford, to connect to Newcastle. It was the first inter-urban motorway to be completed in the UK; the first motorway in the country was the Preston By-pass, which lat ...

and terminating near

Drogheda Drogheda ( , ; , meaning "bridge at the ford") is an industrial and port town in County Louth on the east coast of Ireland, north of Dublin. It is located on the Dublin–Belfast corridor on the east coast of Ireland, mostly in County Louth ...

County Louth County Louth ( ; ga, An Lú) is a coastal county in the Eastern and Midland Region of Ireland, within the province of Leinster. Louth is bordered by the counties of Meath to the south, Monaghan to the west, Armagh to the north and Down to the ...

at a roundabout on the R132. It is an unusual arrangement for a national secondary road to terminate at a regional road. However the R132 is the former N1 route (now by-passed by the M1 motorway) and is of a higher standard than most regional roads.

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On 15 May 2009 Phase 2B of the N51 Navan Inner Relief Road was opened to traffic. This route provides a direct link between the N3/M3 Kells Road and the N51 Athboy Road. On the same day a further 3.9 kilometres of the realigned N51 which has been constructed as part of the M3 motorway scheme was opened to traffic, 2.5 kilometres of which is Type 1 dual carriageway.

References

Roads Act 1993 (Classification of National Roads) Order 2006
–

Department of Transport The Department for Transport (DfT) is a department of His Majesty's Government responsible for the English transport network and a limited number of transport matters in Scotland, Wales and Northern Ireland that have not been devolved. The d ...

{{Roads in Ireland National secondary roads in the Republic of Ireland Roads in County Westmeath Roads in County Meath Roads in County Louth

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See also

References