http://www.fulcrumgroup.co.uk/projects/limerick-tunnel/ Limerick Tunnel The Limerick Tunnel PPP Scheme is 10 km length of tolled dual carriageway bypass to the south west of the city of Limerick, including a 675m long immersed tube tunnel under the River Shannon. Limerick Tunnelfulcruminfrastructuremgmt2018-09-11T20:31:33+01:00