.jpg) Emergency exit in Limerick Tunnel | |
 Interactive map of Limerick Tunnel | |
| Overview | |
|---|---|
| Location | Limerick, Ireland, crossing theRiver Shannon |
| Route | N18 |
| Start | August 2006 |
| End | June 2010 |
| Operation | |
| Opened | 27 July 2010 (2010-07-27) |
| Toll | €2.30 (cars)[1] |
| Technical | |
| Length | 675 metres (740 yd) (immersed tube tunnel section) |
| No. oflanes | Two cells of 2 each |
| Tunnel clearance | 4.65 metres (15 ft) (external) |
TheLimerick Tunnel (Irish:Tollán Luimnigh[2]) is a 675-metre-long (2,215 ft),[3] immersed tube tunnel[4] underneath theRiver Shannon on the outskirts ofLimerick city. The tunnel forms part of theN18 Limerick Southern Ring Road. The tunnel is tolled.
Construction was carried out by a consortium ofStrabag,John Sisk & Son Ltd, Lagan Holdings Ltd and Roadbridge Ltd.[5] Traffic and Transportation planning was undertaken by Colin Buchannan and Partners. Dredging work for the tunnel trench was carried out by Dutch company Van Oord. The immersion process of floating the tunnel elements out into the Shannon was carried out by another Dutch company, Mergor.
The total cost of construction was €660 million.
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A pedestrian open day was held on 19 June 2010, with official opening to traffic by theTaoiseach,Brian Cowen, on 27 July 2010, two months ahead of schedule.[6]
The Austrian EFKON Group commissioned, built and currently operate two toll collection locations, one ten-lane and one six-lane plaza, both staffed.
The tolling locations are both north of the Shannon. One is between junctions 3 and 4 of the N18, and the other is between N18 junction 3 and the Clonmacken Roundabout.[7]
52°39′18″N8°41′10″W / 52.655°N 8.686°W /52.655; -8.686
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