The N25 covers a long distance and has several busy stretches. The biggest ones are New Ross, Waterford and Cork. New Ross's last figure, from 2005, showed nearly 20,000 vpd crossing the town's single river bridge. Waterford's Rice Bridge, which also carries local town traffic, peaked above 40,000 by 2007. The 2009 opening of the town bypass wouldn't take all the traffic away from this, especially since the bypass is tolled, but 2010 saw an 8% decline on the bridge.
The East Cork area, counted at Carrigtwohill, Tullagreine and Little Island, increases west to east from 35k to 50+. Upgrades are planned to grade-separate the junctions, which are clearly badly needed.