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Jack Lynch Tunnel

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Jack Lynch Tunnel
Tollán Sheáin Uí Loingsigh
Location Map ( geo)
Cameraicon.png View gallery (5)
From:  Dunkettle
To:  Mahon
Highway Authority
Transport Infrastructure Ireland
Opening Date
Additional Information
Tunnel Type:  Immersed Tube
On road(s)

The Jack Lynch Tunnel is an immersed tube tunnel under the River Lee. It forms part of both the route along the south coast of Ireland, and the N40 Cork South Ring Road. It was part of the N25 until 2012.

Unlike the Limerick Tunnel and Dublin Tunnel, no toll is charged for use of the Jack Lynch Tunnel. A toll proposal was made, but not pursued.

During construction, the project was known simply as the "Lee Tunnel", but on it official opening in 1999, the tunnel was named after Jack Lynch, former taoiseach (Prime Minister) of the Republic of Ireland, and native of Cork.

The opening of the tunnel allowed Cork to fulfil its dream of having a network of roads "built to urban motorway standard", as had been stated back in 1965.

A planning inquiry in 1985 examined three potential crossings for "Downstream Crossing of the River Lee", these were: a £45m single carriageway lifting bridge, a £65m dual carriageway high level fixed bridge and a £46m single carriageway tunnel.

The high level bridge was widely criticised, while the other two options performed well. The roads secretary confirmed in 1987 that Dunkettle was the preferred site, and an immersed tube tunnel was the preferred option. It was built as a dual carriageway.


Jack Lynch Tunnel
Related Pictures
View gallery (5)
N25 at the Jack Lynch Tunnel - Coppermine - 16208.JPGN25 Cork, Jack Lynch Tunnel-Southern Portal - Coppermine - 5494.jpgN25 approaching the Jack Lynch Tunnel - Coppermine - 16209.JPGN25 Jack Lynch Tunnel - Coppermine - 16207.JPGJack Lynch Tunnel construction.jpg
Crossings of the River Lee
Upstream from CorkDromcarra Bridge • Coolcower Bridge • Innishcarra Bridge • Leemount Bridge
Cork (North Channel)Thomas Davis Bridge • Mardyke Bridge (P) • St Vincents Bridge (P) • Griffith Bridge • Shandon Bridge (P) • Christy Ring Bridge • St Patricks Bridge • Harley's Street Bridge (P) • Brian Boru Bridge • Michael Collins Bridge
Cork (South Channel)St Finnbarres Bridge • Clarkes Bridge • South Gate Bridge • Parliament Bridge • Parnell Bridge • Clontarf Bridge • Eamon De Valera Bridge
Downstream from CorkJack Lynch Tunnel • Passage West Ferry

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