Railway tunnel lengths

A (hopefully) comprehensive listing

Last update 23 October 2014

Additional information is always gratefully received, whether entirely new records (particularly historical records), or information to fill in gaps or correct errors, via the contact link under the Miscellaneous entry in the navigation bar above.  Thank you.

Often a vast engineering feature, and usually a big project at the time of construction, railway tunnels are a source of fascination to many.  Most tunnels exist to give the railway the flattest route possible whilst getting it from one side of a feature (usually a hill) to the other.  Other tunnels exist purely to hide the railway from land owners.  This listing attempts to catalogue all British and Irish tunnels, giving their lengths where known.  Please note that lengths quoted can vary depending on measurement source: alternatives are given as appropriate.  Railway company names are abbreviated: these are as supplied by a correspondent and should be self explanatory or easily determined from the context combined with an internet search.

Thanks to a vast amount of data, the tunnel listing is split across multiple pages: please select from the list below.  Page 4 contains industrial and narrow gauge lines, plus large bridges that are not "officially" tunnels but nevertheless may appear to be so.

This Forgotten Relics page may be of interest.  The film within it describes how tunnels were built, including input from one of this site's contributors Stewart Smith.

Introduction Page 1 (A-F) Page 2 (G-P) Page 3 (Q-Z) Page 4 (others)

With thanks to...

Mike Ball for the original research that started this page; Chris Winstanley, Neil Hallett, Alan Roberts, Peter Gibbons, Phill Davison, John Wilson, Simon Ballard, Peter Naylor, Ken King, Pete Gregory, Paul Perry, Peter Gibbons, Phill Brentor, David McConnell, Roger Carvell, Tony Booth, Steve Haygreen and anonymous contributors for additional data and corrections; and Stewart Smith and Francis Voisey for a very large amount of additional research.

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