The tunnel (not pictured) is said to have reduced congestion in the city of Limerick (Image: Getty Images) A study which has aimed to uncover some of Europe 's most expensive toll roads, bridges and tunnels has also shone a spotlight on those which are more purse-friendly for drivers. According to the study by vehicle hire experts at Northgate , one of Europe's cheapest toll tunnels is just a stone's throw from England. READ MORE One of Europe's most expensive toll bridges will set drivers back over £45 [INSIGHT] Travelling to a depth of nine meters below the River Shannon on the outskirts of Limerick Tunnel, or Tollán Luimnigh, in Ireland .

The 675-metre-long twin-bore road tunnel below the river was built to ease congestion, divert considerable volumes of traffic from the centre of Limerick City and boost economic development. Though the tunnel can shave up to 20 minutes off journey times during peak rush hours, according to local news outlet The Irish Independent , it is considerably cheaper than some of the continent's most expensive toll tunnels. function loadOvpScript(){let el=document.

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