N51 road (Ireland)

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The N51 road is a national secondary road in Ireland. West to east, it starts in Delvin, County Westmeath at a junction with the N52. It passes through Athboy, a junction with M3 motorway, Navan and Slane, where it crosses the N2 road, all in County Meath, before crossing the M1 motorway and terminating near Drogheda in County Louth 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.

See also

• Roads in Ireland
• Motorways in Ireland
• National primary road
• Regional road

References

• Roads Act 1993 (Classification of National Roads) Order 2006 – Department of Transport