Barnagh Tunnel

The Great Southern Trail, comprising the Limerick Greenway and North Kerry Greenway, is a greenway rail trail under development in County Limerick and County Kerry in Ireland. As of October 2022, 40 kilometres (25 miles) of the Limerick Greenway and 10.5 kilometres (6.5 miles) of the North Kerry Greenway were completed. When fully completed, the route is intended to be 85 kilometres (53 miles) long and run from Limerick to Tralee. It is an off-road trail intended for use by cyclists and walkers along the route of the Limerick-Tralee line, formerly operated by the Great Southern and Western Railway, which opened between 1867 and 1880 and was closed in 1977.

Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).