The R463 road is a regional road in Ireland which runs north-south from the R352 at Tuamgraney, County Clare to Limerick city centre. The road passes on its way through Killaloe and O'Briensbridge. The route is long. See also Roads in Ireland National primary road National secondary road References Roads Act 1993 (Classification of Regional Roads) Order 2006 – Department of Transport Regional roads in the Republic of Ireland Roads in County Limerick Roads in County Clare