 | |
|---|---|
| Bóthar R666 | |
 The R666 between Ballyduff and Fermoy | |
| Route information | |
| Length | 28 km (17 mi) |
| Location | |
| Country | Ireland |
| Primary destinations | |
| Highway system | |
TheR666 road is aregional road inIreland which runs west-east from theR639 inFermoy town centre to the bridge over theRiver Blackwater on the outskirts ofLismore. The road passes throughBallyduff, and beneath theRiver Blackwater viaduct which carries theM8 motorway. The R666 begins in Fermoy as the Rathhealy Road. From here to its merger with theR667 road 3km south ofKilworth, the R666 was once part of the historic road linkingDublin andCork. It was mapped as such byHerman Moll in his 1714New Map of Ireland.[1]
The route is 28 km (17 mi) long.
Locally, the road is sometimes humorously known as the road to hell from its name being the same as theNumber of the Beast.[citation needed]