Dublin Port Dublin Port Dublin Port () is the seaport of Dublin, Ireland, of both historical and contemporary economic importance. Approximatively two-thirds of Ireland's port traffic travels via the port, which is by far the busiest on the island of Ireland. Recently, the port and its land, mostly at the eastern end of Dublin's Northside, but also with a southern section, were valued at €25 billion – €30 billion. The modern Dublin Port is located either side of the River Liffey, out to its mouth. On the north side of the river, the main part () of the port lies at the
Dublin Port Tunnel this eponymous and long-standing Irish company were bought by Mowlem before construction of the tunnel began. Thereafter, Irishenco was possibly best described as an Irish-based branch of Mowlem, which was itself dissolved in 2006. Dublin Port Tunnel The Dublin Tunnel (Irish: "Tollán Bhaile Átha Cliath"), originally and still commonly known as the Dublin Port Tunnel, is a road traffic tunnel in Dublin, Ireland, that forms part of the M50 motorway. The twin tunnels form a two-lane dual carriageway connecting Dublin Port, which lies to the east of central Dublin, and the M50 motorway at junction 2, close to Dublin Airport.