 The M8 continues south, bypassing Watergrasshill, Sallybrook, Riverstown and Glanmire, before ending 450m north of the Jack Lynch Tunnel at the approach to the Dunkettle Interchange, which connects it with the N25 to Waterford, the N40 Cork South Ring Road and the N8 to Cork city centre.Despite having a nominal nineteen junctions, the motorway in fact only has eighteen, because the proposed junction 2 was never constructed.The M8 was constructed in eight stages between 1985 and 2010.