The Liffey Service Tunnel () is a service tunnel for various pipelines in

Dublin Dublin is the capital and largest city of Republic of Ireland, Ireland. Situated on Dublin Bay at the mouth of the River Liffey, it is in the Provinces of Ireland, province of Leinster, and is bordered on the south by the Dublin Mountains, pa ...

Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...

, owned by

Dublin City Council Dublin City Council () is the Local government in the Republic of Ireland, local authority of the city of Dublin in Republic of Ireland, Ireland. As a city council, it is governed by the Local Government Act 2001. Until 2001, the authority was k ...

Project

The tunnel was designed by British company

Atkins Atkins may refer to: People * Atkins (surname) Places in the United States * Atkins, Arkansas, a city * Atkins, Iowa, a city * Atkins, an unincorporated community in Bossier Parish, Louisiana * Atkins, Nebraska, an unincorporated community * Atk ...

and constructed by a joint venture of the German contractor Züblin and the Irish contractor Cleary & Doyle of

Wexford Wexford ( ; archaic Yola dialect, Yola: ''Weiseforthe'') is the county town of County Wexford, Republic of Ireland, Ireland. Wexford lies on the south side of Wexford Harbour, the estuary of the River Slaney near the southeastern corner of the ...

. Its construction took place from September 2006 until October 2008.

Tunnel design

The tunnel is long and consists of a single bore of diameter . It was built in pipe-jacking using a

Herrenknecht Herrenknecht AG is a German company that manufactures tunnel boring machines (TBMs). Headquartered in Allmannsweier, Schwanau, Baden-Württemberg, it is the worldwide market leader for heavy TBMs. Established by Martin Herrenknecht in 1975, the ...

tunnel-boring machine and -long precast reinforced-concrete pipes. The tunnel leads from the southern edge of the East Link Bridge, underneath the

River Liffey The River Liffey (Irish language, Irish: ''An Life'', historically ''An Ruirthe(a)ch'') is a river in eastern Ireland that ultimately flows through the centre of Dublin to its mouth within Dublin Bay. Its major Tributary, tributaries include t ...

towards the North Quay Wall, approximately west of

3Arena 3Arena may refer to the following: * 3Arena (Dublin) The 3Arena (originally The O2) is an indoor amphitheatre located at North Wall Quay in the Dublin Docklands in Dublin, Ireland. The venue opened as The O2 on 16 December 2008 and was re-bran ...

. The drive and reception shafts are respectively and deep, leaving the tunnel passing approximately below the shipping channel of the river. Floor Access Cover - Liffey Tunnel

References

External links

Project manager's page
{{Authority control Tunnels in the Republic of Ireland Tunnels completed in 2008