The R157 is a Regional road between Dunboyne and Maynooth in Ireland. It connects to the M3 motorway (Blanchardstown to Kells). This route runs in Counties Kildare and Meath.
Route description The R157 runs form Maynooth in County Kildare through Bogganstown and Dunboyne to the M3 Motorway in County Dublin.
Distance Westport: 260km Malin Head: 315km Mizen Head: 392km
References
http://www.meath.ie/LocalAuthorities/NewsandEvents/Name,49417,en.html https://web.archive.org/web/20090412142441/http://www.m3motorway.ie/ http://www.eurolink-m3.ie