The R446 road is one of Ireland's newest regional roads, having been classified following the opening in 2006 of the N6 High Quality Dual Carriageway (now the M6 motorway) which by-passes the old route.
By-passed sections of the old N6 are reclassified R446 as soon a new section of M6 is opened. The R446 stretches from Kinnegad to Galway.
(As of December 2009)
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