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
Belfast–Dublin line Belfast–Dublin line The Belfast–Dublin line is a main and busiest railway route on the island of Ireland that connects Dublin Connolly station in the Republic of Ireland and station in Northern Ireland. The railway line was built by three separate companies. In 1837 the Ulster Railway began building a railway line between Belfast and Lisburn, which was extended in stages to Portadown in 1842 and as far as Clones by 1863. The Dublin and Drogheda Railway (D&D) built the line between Dublin and Drogheda. The Dublin and Belfast Junction Railway (D&B Jct) linked the Dublin and Drogheda with the Ulster