|Location Map ( geo)|
|M50 from the circulatory carriageway of the roundabout above|
|Templeogue / Tymon North|
|Transport Infrastructure Ireland|
It was opened with the M50 to the north in December 1990, which was known as the Western Parkway. The road to the south (Southern Cross Route) opened in July 2001. An additional left-turn lane was provided in 2009.
However, there is a bit of additional background - the northbound exit crosses the River Dodder on a bridge known as Firhouse Bridge - this was opened as a single carriageway road in 1986, which linked Tallaght Road and Firhouse Road. A replacement bridge (Spawell Bridge) was built further downstream for local traffic. The bridge survived the widening of the main M50 carriageway through the junction (2006-09), which necessitated the widening of the two main Dodder bridges.
In 2012, as with many national routes, the N81 beyond this junction was downgraded to R137. It is still the only Dublin radial to only be classed as a secondary ("non-primary") route.
In keeping with many early Irish motorways, the first road signs here were experimental. There is still a large end of motorway sign positioned well beyond the motorway, on the N81 itself.
|Ó Dheas SOUTHBOUND||For Dún Laoghaire|
|Ó Thuaidh NORTHBOUND · Port Átha Cliath DUBLIN PORT||For N7, N4, N3, N2, M1 · Aerfort AIRPORT|
|Baile Coimín BLESSINGTON · Tamhlacht TALLAGHT|
|Teach Mealóg TEMPLEOGUE · An Lár CITY CENTRE|