In fairness, I have to say that given the magnitude of this project, the delays and upsets have been minimal.
I've have far worse problems with smaller, less well planned roadworks - e.g. anyone remember Killeagh a few years ago, 45 min wait for a resurfacing of a few hundred meters!
Dunkettle has been well planned and it shows.
But as Leper and others said, things change almost daily so you need to keep your wits about you - but don't worry if you end up heading to Waterford, you can get back to Dublin that way too!
Slan abhaile.