The R139 (former N32) at Belcamp, Clonshaugh, Co. Dublin, looking east
The R139 is a short route in the north of Dublin linking the M1/M50 at Clonshaugh to the R106 in Baldoyle. It incorporates the former N32, sometimes referred to as the Northern Cross Route Extension.
There is some confusion about the road's name. Officially, the main part of the route is in three sections: Northern Cross Route Extension, Clarehall Avenue and Grange Road. Often, the new-build western half will be called "Clarehall Road", while the older eastern half gets known as "Grange Road".