Transport in Dublin Grand Canal in the northern and southern portions of the city respectively. The canals were originally built for freight and passenger transportation from the River Liffey at Dublin to the River Shannon in western Ireland. Today, the canals, run by Waterways Ireland, are fully operable but are used only occasionally for pleasure craft. Dublin is served by a major port which handles a mixture of passengers and freight to and from the UK, Dublin Port, which is situated just outside the city centre, with a bus from Dublin Connolly connecting with the trains. Dublin Port is situated closer to the
Roads in Ireland that time, Ireland's main cities (Cork, Limerick, Galway, Waterford and Belfast) excluding Derry were connected to Dublin with motorways or with near-motorway standard roads. Dublin was the focus of some other major projects, such as the East-Link and West-Link toll-bridges, as well as the Dublin Port Tunnel. Major by-pass projects were also built around other cities and towns. The Jack Lynch Tunnel under the River Lee in Cork was a major project outside Dublin, and a fourth crossing at Limerick under the River Shannon (known as the Limerick Tunnel) opened in 2010. The different classes of roads in Ireland are